WO2023204409A1 - Honeycomb-type activated carbon adsorbent composition having improved volatile organic compound desorption performance - Google Patents

Honeycomb-type activated carbon adsorbent composition having improved volatile organic compound desorption performance Download PDF

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WO2023204409A1
WO2023204409A1 PCT/KR2023/002066 KR2023002066W WO2023204409A1 WO 2023204409 A1 WO2023204409 A1 WO 2023204409A1 KR 2023002066 W KR2023002066 W KR 2023002066W WO 2023204409 A1 WO2023204409 A1 WO 2023204409A1
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activated carbon
volatile organic
honeycomb
desorption performance
adsorbent composition
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French (fr)
Korean (ko)
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이강홍
남승하
김신한
정지성
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(주)세라컴
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28042—Shaped bodies; Monolithic structures
    • B01J20/28045—Honeycomb or cellular structures; Solid foams or sponges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28069—Pore volume, e.g. total pore volume, mesopore volume, micropore volume
    • B01J20/28071—Pore volume, e.g. total pore volume, mesopore volume, micropore volume being less than 0.5 ml/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/34—Specific shapes
    • B01D2253/342—Monoliths
    • B01D2253/3425—Honeycomb shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s

Definitions

  • the present invention relates to a honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds. More specifically, the use of activated carbon with a controlled pore size improves the desorption performance of volatile organic compounds, thereby improving the desorption performance of volatile organic compounds. It relates to a honeycomb-type activated carbon adsorbent composition with improved desorption performance.
  • VOCs Volatile organic compounds
  • benzene a volatile organic compound of aromatic hydrocarbons
  • chromosomal abnormalities are often found in people who have been exposed to very low concentrations of benzene. It is being reported.
  • organic solvents are problematic because they are toxic themselves or because the substances contained therein are highly toxic.
  • Representative organic solvents include aromatic hydrocarbons such as benzene, toluene, and xylene.
  • activated carbon is mainly used as an adsorbent composition for adsorbing and removing volatile organic compounds.
  • Carbon-containing materials such as wood, coal, and coconut fruit are used as raw materials for the production of activated carbon.
  • Types of activated carbon include powdered carbon and granular carbon. And there is fibrous activated carbon.
  • granular activated carbon is the most widely used because it has a sufficiently large surface area, low pressure drop, and allows the adsorbed volatile organic compounds to be recovered relatively easily.
  • granular activated carbon had a problem in that it had a low desorption efficiency for adsorbed volatile organic compounds, so it could not be recycled and was disposed of.
  • the purpose of the present invention is to provide a honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds that can be regenerated because activated carbon with controlled pore size is used to improve desorption performance of volatile organic compounds.
  • the object of the present invention is achieved by providing a honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds, which is composed of activated carbon with controlled pore size, binder, and filler.
  • the honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds includes 50 to 75% by weight of activated carbon with controlled pore size, 15 to 30% by weight of binder, and 10 to 20% by weight of filler. It is said to be done.
  • the activated carbon with controlled pore size has pores of 40 nanometers or less of less than 0.4 mL/g.
  • the activated carbon with controlled pore size is granular activated carbon.
  • the binder is made of kaolin.
  • the filler is made of at least one selected from the group consisting of hydraulic aluminum oxide, paligorskite, and sepiolite.
  • honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds according to the present invention exhibits a regenerative effect because the desorption performance of volatile organic compounds is improved by using activated carbon with a controlled pore size.
  • Figure 1 is a graph showing the pore size distribution of activated carbon with controlled pore size used in the present invention and conventional particulate activated carbon.
  • the honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds according to the present invention is composed of activated carbon with controlled pore size, a binder, and filler, comprising 50 to 75% by weight of activated carbon with controlled pore size and 15 to 30% by weight of binder. % and filler of 10 to 20% by weight.
  • the activated carbon with controlled pore size contains 50 to 75% by weight, and among the pores formed in the activated carbon, micropores of 40 nanometers or less are made up of less than 0.4 mL/g, and the adsorption portion is not directly connected to the surface of the activated carbon. The area of the micropores is reduced, showing excellent performance in not only adsorption but also desorption of volatile organic compounds.
  • the pore size distribution of activated carbon with controlled pore size and conventional particulate activated carbon is shown in Figure 1 below. As shown in Figure 1 below, it can be seen that the pore size of the activated carbon with controlled pore size used in the present invention has very small pores of 40 nanometers or less distributed in the particulate activated carbon compared to the particulate activated carbon.
  • activated carbon with controlled pore size can be manufactured in various shapes such as honeycomb structure or plate shape, which has the advantage of maximizing use of the surface. If the content of activated carbon with controlled pore size is less than 50% by weight, the above effect is not achieved. It is insignificant, and when the content of activated carbon with the pore size controlled exceeds 75% by weight, the above effect is not greatly improved and the content of binder and filler is relatively reduced, so the morphological stability of the honeycomb type activated carbon adsorbent composition is reduced. Mechanical properties may deteriorate.
  • the binder contains 15 to 30% by weight and is made of kaolin, and serves to bind each component constituting the honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds prepared through the present invention.
  • the kaolin is the most representative clay mineral, and its unit structure has a 1:1 structure of a silicate tetrahedral layer and an alumina octahedral layer, and is composed of three types with different structures: kaolinite, dickite, and nacrite. It may contain halloysite with added minerals and interlayer water.
  • the chemical composition of the three minerals other than halloysite is [Al 2 Si 2 O 5 (OH) 4 ] or [Al 2 O 3 ⁇ 2SiO 2 ⁇ 2H 2 O], and the weight percent of the oxide is SiO 2 46.5%, Al 2 O 3 39.5% and H 2 O 14.0%, which has the most consistent composition among clay minerals.
  • a binder made of kaolin that exhibits the above properties has the effect of sterilizing, deodorizing, and purifying odors and pollutants such as various bacteria, viruses, mold, fine dust, and odors that are harmful to the human body contained in the air. indicates.
  • the binder content is less than 15% by weight, the effect is minimal, and if the binder content exceeds 30% by weight, the effect is not significantly improved, but the content of activated carbon or filler with relatively controlled pore size As this decreases, the removal effect of volatile organic compounds may decrease and the mechanical strength of the adsorbent composition may decrease.
  • the filler contains 10 to 20% by weight, and is preferably made of at least one selected from the group consisting of hydraulic aluminum oxide, palygorskite, and sepiolite.
  • the mechanical strength of the adsorbent composition according to the present invention is increased. It not only improves moisture resistance but also improves adsorption performance.
  • the hydraulic aluminum oxide not only improves the mechanical strength of the adsorbent composition according to the present invention, but also improves moisture resistance so that the physical properties of the adsorbent composition can be maintained even under high humidity conditions.
  • the paligorskite is a 2:1 clay mineral that occurs in the form of needles, and its chemical formula is [Si 8 Mg 2 Al 2 O 2 0(OH) 2 (OH) 2 4H 2 O], which has a chain structure of silicic acid tetrahedron. It has a tunnel structure and contains water molecules within the tunnel. It mainly exists in the soil of dry areas, and is commercially known as attapulgite and is also used in the fertilizer manufacturing process. In the present invention, it improves the mechanical strength of the adsorbent composition and further improves the adsorption effect of volatile organic chemicals. It plays a role.
  • the sepiolite is also called meerschaum, and its chemical composition is [Mg 4 Si 6 O 15 (OH) 2 6H 2 O], hardness is 2 to 25, specific gravity is 2, and there are fibrous crystals. Usually, it is a collection of tiny earthen crystals and can only be observed with an electron microscope. The white, gray, green and yellow dried lumps are light enough to float and are found in large quantities at the bottom of salt lakes in the United States. It is used as slurry for exploration boring or as a desiccant by baking. In the present invention, it improves the mechanical strength of the adsorbent composition and further improves the adsorption effect of volatile organic chemicals.
  • the effect of improving the mechanical strength of the adsorbent composition according to the present invention is minimal, and if the content of the filler exceeds 20% by weight, the effect is not significantly improved. If the content of activated carbon and binder, whose pore size is relatively controlled, is excessively reduced, the adsorption or decomposition power of volatile organic compounds and the binding power of the adsorbent composition may decrease, resulting in a decrease in mechanical properties.
  • a honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 55% by weight of activated carbon with controlled pore size, 27% by weight of binder (kaolin), and 18% by weight of filler (paligorskite). A composition was prepared.
  • a honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 60% by weight of activated carbon with controlled pore size, 24% by weight of binder (kaolin), and 16% by weight of filler (paligorskite). A composition was prepared.
  • a honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 65% by weight of activated carbon with controlled pore size, 21% by weight of binder (kaolin), and 14% by weight of filler (paligorskite). A composition was prepared.
  • a honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 70% by weight of activated carbon with controlled pore size, 18% by weight of binder (kaolin), and 12% by weight of filler (paligorskite). A composition was prepared.
  • a honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 75% by weight of activated carbon with controlled pore size, 15% by weight of binder (kaolin), and 10% by weight of filler (paligorskite). A composition was prepared.
  • particulate activated carbon 0.5mL/g with pores of 40nm or less
  • binder kaolin
  • filler paligorskite
  • the mixture prepared by mixing for several minutes is put into an extrusion molding machine, extruded, and molded into a honeycomb structure measuring 50 mm wide x 20 mm long and representing 100 cells, and then fired at a temperature of 500°C for 2 hours to improve the desorption performance of volatile organic compounds.
  • a honeycomb-type activated carbon adsorbent composition was prepared.
  • the adsorption performance was measured at a space velocity of 10000 SV and toluene was used for volatile organic compounds, with an initial concentration of 1,000 ppm. The above measurement was made by measuring the concentration of toluene that was not adsorbed on the adsorbent at the back of the adsorbent. ⁇
  • Example 1 0.4 120.1 567.0 722.5 810.4 930.3 980.6
  • Example 2 0.5 2.1 282.6 730.9 800.5 920.9 970.6
  • Example 3 0.8 25.5 30.4 231.6 494.0 733.4 804.4
  • Example 4 10.8 17.8 23.7 57.4 135.6 177.8 266.7
  • Example 5 0.3 0.1 0.2 0.5 1.2 5.6 28.1
  • Example 6 0.3 0.2 0.1 0.3 0.9 5.3 25.1 Comparative Example 1 0.5 0.3 0.2 1.0 2.6 5.8 30.1
  • the regeneration performance is at a space velocity of 10000SV, and the volatile organic compound uses toluene. After toluene is adsorbed for 1 to 7 hours at an initial concentration of 1,000ppm, it is regenerated at a space velocity of 2000SV at a temperature of 165°C, and then regenerated again.
  • the space velocity was 10000 SV, toluene was used as the volatile organic compound, and the concentration of toluene remaining without being adsorbed on the adsorbent for 1 to 7 hours was measured at the back of the adsorbent at an initial concentration of 1,000 ppm. ⁇
  • Example 1 0.4 120.1 530.3 752.5 810.4 940.3 980.6
  • Example 2 0.5 22.6 254.3 725.9 797.5 924.9 965.6
  • Example 3 0.8 20.5 26.4 235.6 504.0 723.4 724.0
  • Example 4 0.5 12.8 19.7 61.4 140.6 174.8 286.7
  • Example 5 0.3 0.4 0.5 0.6 1.5 6.5 25.1
  • Example 6 0.3 0.9 0.9 0.3 1.0 6.3 20.1 Comparative Example 1 10.4 26.1 125.1 500.1 751.1 900.1 950.9
  • the regeneration performance is at a space velocity of 10000SV, and the volatile organic compound uses toluene. After toluene is adsorbed for 1 to 7 hours at an initial concentration of 1,000ppm, it is regenerated at a space velocity of 2000SV at a temperature of 165°C, and then regenerated again.
  • the space velocity was 10000 SV, toluene was used as the volatile organic compound, and the concentration of toluene remaining without being adsorbed on the adsorbent for 1 to 7 hours was measured at the back of the adsorbent at an initial concentration of 1,000 ppm. ⁇
  • Example 1 0.4 126.1 535.6 737.5 802.3 930.9 981.5
  • Example 2 0.5 23.7 256.8 722.7 789.5 797.4 965.1
  • Example 3 0.8 21.5 26.7 697.2 499.0 716.2 723.0
  • Example 4 0.5 13.4 19.9 226.3 139.2 140.6 285.5
  • Example 5 0.3 0.4 0.5 59.0 1.5 6.4 25.5
  • Example 6 0.3 0.9 0.9 0.6 1.0 6.5 20.5 Comparative Example 1 13.5 34.1 162.6 650.1 845.2 950.9 981.3
  • the adsorbent composition prepared through Examples 1 to 6 of the present invention showed similar performance to that before regeneration even after secondary regeneration, but in the case of Comparative Example 1, the adsorption performance was found to continuously decrease.
  • honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds according to the present invention can be regenerated because the desorption performance of volatile organic compounds is improved by using activated carbon with a controlled pore size.

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Abstract

The present invention relates to a honeycomb-type activated carbon adsorbent composition having improved volatile organic compound desorption performance, and more specifically, the present invention comprises pore size-controlled activated carbon, a binder, and a filling material. An activated carbon adsorbent comprising said components has improved volatile organic compound desorption performance by using the pore size-controlled activated carbon and thus may be regenerated.

Description

휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물Honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds
본 발명은 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물에 관한 것으로, 더욱 상세하게는 기공 크기가 제어된 활성탄이 사용되어 휘발성 유기화합물의 탈착성능이 개선되기 때문에 재생이 가능한 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물에 관한 것이다.The present invention relates to a honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds. More specifically, the use of activated carbon with a controlled pore size improves the desorption performance of volatile organic compounds, thereby improving the desorption performance of volatile organic compounds. It relates to a honeycomb-type activated carbon adsorbent composition with improved desorption performance.
휘발성유기화합물(VOCs, Volatile organic compounds)은 인체 및 생태계에 미치는 영향이 커서 특정 대기 유해물질로 분류되고 있으며, 또한 광화학 반응을 통하여 오존 등과 같은 2차 오염물질인 광화학 산화물을 생성시킨다.Volatile organic compounds (VOCs) are classified as specific air pollutants because they have a significant impact on the human body and ecosystem. They also generate photochemical oxides, which are secondary pollutants such as ozone, through photochemical reactions.
이와 같은 휘발성 유기화합물은 발암성이 높다고 알려져 있는 화학물질이 다수 포함되어 있기 때문에 인체에 유독하며 오존층 파괴, 지구온난화, 광화학 스모그, 악취 등의 문제점을 야기한다.These volatile organic compounds are toxic to the human body because they contain many chemicals known to be highly carcinogenic and cause problems such as ozone layer destruction, global warming, photochemical smog, and bad odor.
휘발성 유기화합물의 인체에 대한 직접적인 영향은, 방향족 탄화수소류의 휘발성 유기화합물 중 벤젠의 경우에는 백혈병과 중추신경 장애를 일으킨다고 알려져 있으며, 매우 낮은 농도의 벤젠에 노출되었던 사람에게도 염색체 이상이 종종 발견된다고 보고되고 있다.The direct effect of volatile organic compounds on the human body is that benzene, a volatile organic compound of aromatic hydrocarbons, is known to cause leukemia and central nervous system disorders, and chromosomal abnormalities are often found in people who have been exposed to very low concentrations of benzene. It is being reported.
한편, 유기 용제류는 그 자체가 독성을 지니고 있거나 그 속에 포함된 이 물질들의 독성이 높아 문제시되고 있다. 대표적인 유기용제로는 벤젠, 톨루엔, 크실렌 등의 방향족 탄화수소류가 있다.Meanwhile, organic solvents are problematic because they are toxic themselves or because the substances contained therein are highly toxic. Representative organic solvents include aromatic hydrocarbons such as benzene, toluene, and xylene.
종래에는 휘발성유기화합물을 흡착 및 제거하는 흡착제 조성물로 활성탄이 주로 사용되고 있는데, 활성탄의 제조 원료로는 목재, 석탄, 코코넛 열매와 같은 탄소함유 물질이 사용되며, 활성탄의 종류로는 분말탄, 입상탄 그리고 섬유상 활성탄 등이 있다.Conventionally, activated carbon is mainly used as an adsorbent composition for adsorbing and removing volatile organic compounds. Carbon-containing materials such as wood, coal, and coconut fruit are used as raw materials for the production of activated carbon. Types of activated carbon include powdered carbon and granular carbon. And there is fibrous activated carbon.
이중 입상활성탄은 충분히 넓은 표면적을 가지며 압력강하가 적고 흡착된 휘발성유기화합물을 비교적 쉽게 회수할 수 있어 가장 널리 사용되고 있다. 그러나 입상활성탄은 흡착된 휘발성유기화합물에 대해 낮은 탈착 효율를 나타내어 재생되지 못하고 폐기처분되는 문제점이 있었다.Among these, granular activated carbon is the most widely used because it has a sufficiently large surface area, low pressure drop, and allows the adsorbed volatile organic compounds to be recovered relatively easily. However, granular activated carbon had a problem in that it had a low desorption efficiency for adsorbed volatile organic compounds, so it could not be recycled and was disposed of.
본 발명의 목적은 기공 크기가 제어된 활성탄이 사용되어 휘발성 유기화합물의 탈착성능이 개선되기 때문에 재생이 가능한 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제공하는 것이다.The purpose of the present invention is to provide a honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds that can be regenerated because activated carbon with controlled pore size is used to improve desorption performance of volatile organic compounds.
본 발명의 목적은 기공 크기가 제어된 활성탄, 바인더 및 충전재로 이루어지는 것을 특징으로 하는 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제공함에 의해 달성된다.The object of the present invention is achieved by providing a honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds, which is composed of activated carbon with controlled pore size, binder, and filler.
본 발명의 바람직한 특징에 따르면, 상기 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물은 기공 크기가 제어된 활성탄 50 내지 75 중량%, 바인더 15 내지 30 중량% 및 충전재 10 내지 20 중량%로 이루어지는 것으로 한다.According to a preferred feature of the present invention, the honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds includes 50 to 75% by weight of activated carbon with controlled pore size, 15 to 30% by weight of binder, and 10 to 20% by weight of filler. It is said to be done.
본 발명의 더 바람직한 특징에 따르면, 상기 기공 크기가 제어된 활성탄은 40 나노미터 이하의 기공이 0.4mL/g 미만인 것으로 한다.According to a more preferred feature of the present invention, the activated carbon with controlled pore size has pores of 40 nanometers or less of less than 0.4 mL/g.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 기공 크기가 제어된 활성탄은 입상 활성탄인 것으로 한다.According to an even more preferred feature of the present invention, the activated carbon with controlled pore size is granular activated carbon.
본 발명의 더욱 바람직한 특징에 따르면, 상기 바인더는 카올린으로 이루어지는 것으로 한다.According to a more preferred feature of the present invention, the binder is made of kaolin.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 충전재는 수경성 산화알루미늄, 팔리고르스카이트 및 세피올라이트로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것으로 한다.According to an even more preferred feature of the present invention, the filler is made of at least one selected from the group consisting of hydraulic aluminum oxide, paligorskite, and sepiolite.
본 발명에 따른 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물은 기공 크기가 제어된 활성탄이 사용되어 휘발성 유기화합물의 탈착성능이 개선되기 때문에 재생이 가능한 효과를 나타낸다.The honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds according to the present invention exhibits a regenerative effect because the desorption performance of volatile organic compounds is improved by using activated carbon with a controlled pore size.
도 1은 본 발명에서 사용되는 기공 크기가 제어된 활성탄과 종래에 입자상 활성탄의 기공크기 분포를 나타낸 그래프이다.Figure 1 is a graph showing the pore size distribution of activated carbon with controlled pore size used in the present invention and conventional particulate activated carbon.
이하에는, 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.Below, preferred embodiments of the present invention and the physical properties of each component are described in detail, but are intended to be described in detail so that those skilled in the art can easily practice the invention. This does not mean that the technical idea and scope of the present invention are limited.
본 발명에 따른 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물은 기공 크기가 제어된 활성탄, 바인더 및 충전재로 이루어지며, 기공 크기가 제어된 활성탄 50 내지 75 중량%, 바인더 15 내지 30 중량% 및 충전재 10 내지 20 중량%로 이루어지는 것이 바람직하다.The honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds according to the present invention is composed of activated carbon with controlled pore size, a binder, and filler, comprising 50 to 75% by weight of activated carbon with controlled pore size and 15 to 30% by weight of binder. % and filler of 10 to 20% by weight.
상기 기공 크기가 제어된 활성탄은 50 내지 75 중량%가 함유되며, 활성탄에 형성되는 기공 중 40 나노미터 이하의 미세공이 0.4mL/g 미만으로 이루어져 있으며, 흡착부분이 활성탄 표면으로 직접적으로 연결되지 않은 미세공의 면적이 줄어들어 휘발성유기화합물의 흡착 뿐만 아니라, 탈착에도 우수한 성능을 나타낸다.The activated carbon with controlled pore size contains 50 to 75% by weight, and among the pores formed in the activated carbon, micropores of 40 nanometers or less are made up of less than 0.4 mL/g, and the adsorption portion is not directly connected to the surface of the activated carbon. The area of the micropores is reduced, showing excellent performance in not only adsorption but also desorption of volatile organic compounds.
상기 기공 크기가 제어된 활성탄과, 종래에 입자상 활성탄의 기공크기 분포를 아래 도 1에 나타내었다. 아래 도 1에 나타낸 것처럼, 본 발명에서 사용되는 기공 크기가 제어된 활성탄은 기공의 크기가 입자상 활성탄은 40 나노미터 이하의 기공이 입자상 활성탄에 비해 매우 적게 분포한 것을 알 수 있다.The pore size distribution of activated carbon with controlled pore size and conventional particulate activated carbon is shown in Figure 1 below. As shown in Figure 1 below, it can be seen that the pore size of the activated carbon with controlled pore size used in the present invention has very small pores of 40 nanometers or less distributed in the particulate activated carbon compared to the particulate activated carbon.
또한, 기공 크기가 제어된 활성탄은 벌집구조나 판형 등 다양한 형태로 제조가 가능하여 표면을 최대한 사용할 수 있는 장점이 있는데, 상기 기공 크기가 제어된 활성탄의 함량이 50 중량% 미만이면 상기의 효과가 미미하며, 상기 기공 크기가 제어된 활성탄의 함량이 75 중량%를 초과하게 되면 상기의 효과는 크게 향상되지 않으면서 상대적으로 바인더와 충전재의 함량이 줄어들기 때문에, 허니컴형 활성탄 흡착제 조성물의 형태안정성이나 기계적 물성이 저하될 수 있다.In addition, activated carbon with controlled pore size can be manufactured in various shapes such as honeycomb structure or plate shape, which has the advantage of maximizing use of the surface. If the content of activated carbon with controlled pore size is less than 50% by weight, the above effect is not achieved. It is insignificant, and when the content of activated carbon with the pore size controlled exceeds 75% by weight, the above effect is not greatly improved and the content of binder and filler is relatively reduced, so the morphological stability of the honeycomb type activated carbon adsorbent composition is reduced. Mechanical properties may deteriorate.
상기 바인더는 15 내지 30 중량%가 함유되며, 카올린으로 이루어지는데, 본 발명을 통해 제조되는 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 구성하는 각 성분을 결속시키는 역할을 한다.The binder contains 15 to 30% by weight and is made of kaolin, and serves to bind each component constituting the honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds prepared through the present invention.
상기 카올린은 가장 대표적인 점토광물이며, 단위구조는 규산 4면체층과 알루미나 8면체층이 1: 1로 되는 구조를 가지며, 카올리나이트, 디카이트(dickite), 내크라이트(nacrite)의 구조가 다른 3종류의 광물과 층간수가 첨가된 할로이사이트(halloysite)를 포함할 수 있다. 할로이사이트 이외의 3광물의 화학조성식은 [Al2Si2O5(OH)4] 또는 [Al2O3·2SiO2·2H2O]이며 산화물의 중량%는 SiO2 46.5%, Al2O3 39.5%, H2O 14.0%로 점토광물 중에서는 가장 일정한 조성을 가진다.The kaolin is the most representative clay mineral, and its unit structure has a 1:1 structure of a silicate tetrahedral layer and an alumina octahedral layer, and is composed of three types with different structures: kaolinite, dickite, and nacrite. It may contain halloysite with added minerals and interlayer water. The chemical composition of the three minerals other than halloysite is [Al 2 Si 2 O 5 (OH) 4 ] or [Al 2 O 3 · 2SiO 2 · 2H 2 O], and the weight percent of the oxide is SiO 2 46.5%, Al 2 O 3 39.5% and H 2 O 14.0%, which has the most consistent composition among clay minerals.
상기와 같은 특성을 나타내는 카올린으로 이루어진 바인더는 상기의 효과 외에도 공기 중에 함유되어 있는 인체에 해로운 각종 세균이나 바이러스, 곰팡이, 미세먼지, 악취 등의 냄새 성분과 오염물질을 살균, 탈취 및 정화시키는 효과를 나타낸다.In addition to the above effects, a binder made of kaolin that exhibits the above properties has the effect of sterilizing, deodorizing, and purifying odors and pollutants such as various bacteria, viruses, mold, fine dust, and odors that are harmful to the human body contained in the air. indicates.
상기 바인더의 함량이 15 중량% 미만이면 상기의 효과가 미미하며, 상기 바인더의 함량이 30 중량%를 초과하게 되면 상기의 효과는 크게 향상되지 않으면서 상대적으로 기공 크기가 제어된 활성탄이나 충전재의 함량이 줄어들기 때문에, 휘발성유기화합물의 제거효과가 저하되고, 흡착제 조성물의 기계적 강도가 저하될 수 있다.If the binder content is less than 15% by weight, the effect is minimal, and if the binder content exceeds 30% by weight, the effect is not significantly improved, but the content of activated carbon or filler with relatively controlled pore size As this decreases, the removal effect of volatile organic compounds may decrease and the mechanical strength of the adsorbent composition may decrease.
상기 충전재는 10 내지 20 중량%가 함유되며, 수경성 산화알루미늄, 팔리고르스카이트(palygorskite) 및 세피올라이트로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것이 바람직한데, 본 발명에 따른 흡착제 조성물의 기계적 강도를 향상시킬 뿐만 아니라, 수분저항성이나 흡착성능을 더욱 향상시키는 역할을 한다.The filler contains 10 to 20% by weight, and is preferably made of at least one selected from the group consisting of hydraulic aluminum oxide, palygorskite, and sepiolite. The mechanical strength of the adsorbent composition according to the present invention is increased. It not only improves moisture resistance but also improves adsorption performance.
상기 수경성 산화알루미늄은 본 발명에 따른 흡착제 조성물의 기계적 강도를 향상시킬 뿐만 아니라, 수분 저항성을 향상시켜 다습한 조건에서도 흡착제 조성물의 물성이 유지될 수 있도록 하는 역할을 한다.The hydraulic aluminum oxide not only improves the mechanical strength of the adsorbent composition according to the present invention, but also improves moisture resistance so that the physical properties of the adsorbent composition can be maintained even under high humidity conditions.
또한, 상기 팔리고르스카이트는 침상으로 산출되는 2:1 점토광물로서 화학식은 [Si8Mg2Al2O20(OH)2(OH)2·4H2O]인데, 규산 4면체의 사슬구조에 의한 터널(tunnel)구조를 가지며 터널 내에 물분자를 함유한다. 주로 건조지역의 토양에 존재하고, 상업적으로는 아타풀자이트(attapulgite)로 알려져 있으며 비료 제조 과정에 이용되기도 하는데, 본 발명에서는 흡착제 조성물의 기계적 강도를 향상시키며 휘발성 유기화학물의 흡착효과를 더욱 향상시키는 역할을 한다.In addition, the paligorskite is a 2:1 clay mineral that occurs in the form of needles, and its chemical formula is [Si 8 Mg 2 Al 2 O 2 0(OH) 2 (OH) 2 4H 2 O], which has a chain structure of silicic acid tetrahedron. It has a tunnel structure and contains water molecules within the tunnel. It mainly exists in the soil of dry areas, and is commercially known as attapulgite and is also used in the fertilizer manufacturing process. In the present invention, it improves the mechanical strength of the adsorbent composition and further improves the adsorption effect of volatile organic chemicals. It plays a role.
또한, 상기 세피올라이트는 해포석이라고도 하며, 화학성분은 [Mg4Si6O15(OH)2·6H2O]으로, 굳기는 2 내지 25이고, 비중은 2를 나타내는데, 섬유상의 결정도 있으나 보통은 토상의 미소한 결정의 집합체로 전자현미경으로만 관찰할 수 있다. 백색, 회색, 녹색 및 황색을 띠며 건조한 덩어리로 된 것은 물에 뜰 만큼 가볍고, 미국에서는 염호의 바닥에 다량으로 존재한다. 탐사보링용 이수나, 구워서 건조제로 사용하는데, 본 발명에서는 흡착제 조성물의 기계적 강도를 향상시키며 휘발성 유기화학물의 흡착효과를 더욱 향상시키는 역할을 한다.In addition, the sepiolite is also called meerschaum, and its chemical composition is [Mg 4 Si 6 O 15 (OH) 2 6H 2 O], hardness is 2 to 25, specific gravity is 2, and there are fibrous crystals. Usually, it is a collection of tiny earthen crystals and can only be observed with an electron microscope. The white, gray, green and yellow dried lumps are light enough to float and are found in large quantities at the bottom of salt lakes in the United States. It is used as slurry for exploration boring or as a desiccant by baking. In the present invention, it improves the mechanical strength of the adsorbent composition and further improves the adsorption effect of volatile organic chemicals.
상기의 성분으로 이루어지는 충전재의 함량이 10 중량% 미만이면 본 발명에 따른 흡착제 조성물의 기계적 강도 향상효과가 미미하며, 상기 충전재의 함량이 20 중량%를 초과하게 되면 상기의 효과는 크게 향상되지 않으면서 상대적으로 기공 크기가 제어된 활성탄과 바인더의 함량이 지나치게 줄어들어 휘발성유기화합물의 흡착력이나 분해력 및 흡착제 조성물의 결속력이 저하로 인해 오히려 기계적 물성이 저하될 수 있다.If the content of the filler consisting of the above components is less than 10% by weight, the effect of improving the mechanical strength of the adsorbent composition according to the present invention is minimal, and if the content of the filler exceeds 20% by weight, the effect is not significantly improved. If the content of activated carbon and binder, whose pore size is relatively controlled, is excessively reduced, the adsorption or decomposition power of volatile organic compounds and the binding power of the adsorbent composition may decrease, resulting in a decrease in mechanical properties.
이하에서는, 본 발명에 따른 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물의 제조방법 및 그 제조방법으로 제조된 흡착제 조성물의 물성을 실시예를 들어 설명하기로 한다.Hereinafter, a method for manufacturing a honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds according to the present invention and the physical properties of the adsorbent composition prepared by the method will be described through examples.
<실시예 1><Example 1>
기공 크기가 제어된 활성탄(40nm 이하의 기공이 0.4ml/g) 50 중량%, 바인더(카올린) 30 중량% 및 충전재(팔리고르스카이트) 20 중량%를 교반기가 구비된 혼합장치에 투입하고 150rpm의 속도로 10분 동안 혼합하여 제조된 혼합물을 압출성형기에 투입하고 압출하여 가로 50mm×세로 20mm 규격이며 100cell을 나타내는 허니컴 구조로 성형한 후에 500℃의 온도에서 2시간 동안 소성하여 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제조하였다.50% by weight of activated carbon with controlled pore size (0.4ml/g pores of 40nm or less), 30% by weight of binder (kaolin), and 20% by weight of filler (paligorskite) were added to a mixing device equipped with a stirrer and stirred at 150rpm. The mixture prepared by mixing at a speed of 10 minutes is put into an extruder and extruded to form a honeycomb structure measuring 50 mm wide x 20 mm long and representing 100 cells, and then fired at a temperature of 500°C for 2 hours to desorb volatile organic compounds. A honeycomb-type activated carbon adsorbent composition with improved performance was prepared.
<실시예 2><Example 2>
상기 실시예 1과 동일하게 진행하되, 기공 크기가 제어된 활성탄 55 중량%, 바인더(카올린) 27 중량% 및 충전재(팔리고르스카이트) 18 중량%를 혼합하여 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제조하였다.A honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 55% by weight of activated carbon with controlled pore size, 27% by weight of binder (kaolin), and 18% by weight of filler (paligorskite). A composition was prepared.
<실시예 3><Example 3>
상기 실시예 1과 동일하게 진행하되, 기공 크기가 제어된 활성탄 60 중량%, 바인더(카올린) 24 중량% 및 충전재(팔리고르스카이트) 16 중량%를 혼합하여 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제조하였다.A honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 60% by weight of activated carbon with controlled pore size, 24% by weight of binder (kaolin), and 16% by weight of filler (paligorskite). A composition was prepared.
<실시예 4><Example 4>
상기 실시예 1과 동일하게 진행하되, 기공 크기가 제어된 활성탄 65 중량%, 바인더(카올린) 21 중량% 및 충전재(팔리고르스카이트) 14 중량%를 혼합하여 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제조하였다.A honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 65% by weight of activated carbon with controlled pore size, 21% by weight of binder (kaolin), and 14% by weight of filler (paligorskite). A composition was prepared.
<실시예 5><Example 5>
상기 실시예 1과 동일하게 진행하되, 기공 크기가 제어된 활성탄 70 중량%, 바인더(카올린) 18 중량% 및 충전재(팔리고르스카이트) 12 중량%를 혼합하여 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제조하였다.A honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 70% by weight of activated carbon with controlled pore size, 18% by weight of binder (kaolin), and 12% by weight of filler (paligorskite). A composition was prepared.
<실시예 6><Example 6>
상기 실시예 1과 동일하게 진행하되, 기공 크기가 제어된 활성탄 75 중량%, 바인더(카올린) 15 중량% 및 충전재(팔리고르스카이트) 10 중량%를 혼합하여 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제조하였다.A honeycomb-type activated carbon adsorbent with improved desorption performance was carried out in the same manner as in Example 1, but by mixing 75% by weight of activated carbon with controlled pore size, 15% by weight of binder (kaolin), and 10% by weight of filler (paligorskite). A composition was prepared.
<비교예 1><Comparative Example 1>
입자상 활성탄(40nm 이하의 기공이 0.5mL/g) 70 중량%, 바인더(카올린) 18 중량% 및 충전재(팔리고르스카이트) 12 중량%를 교반기가 구비된 혼합장치에 투입하고 150rpm의 속도로 10분 동안 혼합하여 제조된 혼합물을 압출성형기에 투입하고 압출하여 가로 50mm×세로 20mm 규격이며 100cell을 나타내는 허니컴 구조로 성형한 후에 500℃의 온도에서 2시간 동안 소성하여 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물을 제조하였다.70% by weight of particulate activated carbon (0.5mL/g with pores of 40nm or less), 18% by weight of binder (kaolin), and 12% by weight of filler (paligorskite) were added to a mixing device equipped with a stirrer and mixed at a speed of 150rpm for 10%. The mixture prepared by mixing for several minutes is put into an extrusion molding machine, extruded, and molded into a honeycomb structure measuring 50 mm wide x 20 mm long and representing 100 cells, and then fired at a temperature of 500°C for 2 hours to improve the desorption performance of volatile organic compounds. A honeycomb-type activated carbon adsorbent composition was prepared.
상기 실시예 1 내지 6 및 비교예 1을 통해 제조된 활성탄 흡착제의 휘발성유기화합물 흡착능을 측정하여 아래 표 1에 나타내었다.The volatile organic compound adsorption capacity of the activated carbon adsorbents prepared through Examples 1 to 6 and Comparative Example 1 was measured and shown in Table 1 below.
{단, 흡착성능은 공간속도 10000SV, 휘발성 유기화합물은 톨루엔을 사용하되, 초기 농도 1,000ppm의 조건에서 측정하였다. 상기 측정은 흡착제에 흡착되지 않은 톨루엔의 농도를 흡착제의 후면에서 측정하여 이루어졌다.}{However, the adsorption performance was measured at a space velocity of 10000 SV and toluene was used for volatile organic compounds, with an initial concentration of 1,000 ppm. The above measurement was made by measuring the concentration of toluene that was not adsorbed on the adsorbent at the back of the adsorbent.}
구분division 경과시간Elapsed time
1시간1 hours 2시간2 hours 3시간3 hours 4시간4 hours 5시간5 hours 6시간6 hours 7시간7 hours
실시예 1Example 1 0.40.4 120.1120.1 567.0567.0 722.5722.5 810.4810.4 930.3930.3 980.6980.6
실시예 2Example 2 0.50.5 2.12.1 282.6282.6 730.9730.9 800.5800.5 920.9920.9 970.6970.6
실시예 3Example 3 0.80.8 25.525.5 30.430.4 231.6231.6 494.0494.0 733.4733.4 804.4804.4
실시예 4Example 4 10.810.8 17.817.8 23.723.7 57.457.4 135.6135.6 177.8177.8 266.7266.7
실시예 5Example 5 0.30.3 0.10.1 0.20.2 0.50.5 1.21.2 5.65.6 28.128.1
실시예 6Example 6 0.30.3 0.20.2 0.10.1 0.30.3 0.90.9 5.35.3 25.125.1
비교예 1Comparative Example 1 0.50.5 0.30.3 0.20.2 1.01.0 2.62.6 5.85.8 30.130.1
상기 표 1에 나타낸 것처럼, 본 발명의 실시예 1 내지 6을 통해 제조된 흡착제 조성물은 휘발성 유기화합물에 대해 우수한 흡착성능을 나타내는 것을 알 수 있다.As shown in Table 1, it can be seen that the adsorbent compositions prepared through Examples 1 to 6 of the present invention exhibit excellent adsorption performance for volatile organic compounds.
또한, 상기 실시예 1 내지 6 및 비교예 1을 통해 제조된 활성탄 흡착제로 1회 재생을 실시하고 흡착성능을 측정하여 아래 표 2에 나타내었다.In addition, regeneration was performed once with the activated carbon adsorbent prepared through Examples 1 to 6 and Comparative Example 1, and the adsorption performance was measured and is shown in Table 2 below.
{단, 재생성능은 공간속도 10000SV, 휘발성 유기화합물은 톨루엔을 사용하되, 초기 농도 1,000ppm의 조건에서 1 내지 7시간 동안 톨루엔을 흡착하도록 한 후에 165℃의 온도에서 공간속도 2000SV로 재생하고, 다시 공간속도 10000SV, 휘발성 유기화합물은 톨루엔을 사용하되, 초기 농도 1,000ppm의 조건에서 1 내지 7시간 동안 흡착제에 흡착되지 않고 남은 톨루엔의 농도를 흡착제의 후면에서 측정하는 방법을 이용하였다.}{However, the regeneration performance is at a space velocity of 10000SV, and the volatile organic compound uses toluene. After toluene is adsorbed for 1 to 7 hours at an initial concentration of 1,000ppm, it is regenerated at a space velocity of 2000SV at a temperature of 165°C, and then regenerated again. The space velocity was 10000 SV, toluene was used as the volatile organic compound, and the concentration of toluene remaining without being adsorbed on the adsorbent for 1 to 7 hours was measured at the back of the adsorbent at an initial concentration of 1,000 ppm.}
구분division 경과시간Elapsed time
1시간1 hours 2시간2 hours 3시간3 hours 4시간4 hours 5시간5 hours 6시간6 hours 7시간7 hours
실시예 1Example 1 0.40.4 120.1120.1 530.3530.3 752.5752.5 810.4810.4 940.3940.3 980.6980.6
실시예 2Example 2 0.50.5 22.622.6 254.3254.3 725.9725.9 797.5797.5 924.9924.9 965.6965.6
실시예 3Example 3 0.80.8 20.520.5 26.426.4 235.6235.6 504.0504.0 723.4723.4 724.0724.0
실시예 4Example 4 0.50.5 12.812.8 19.719.7 61.461.4 140.6140.6 174.8174.8 286.7286.7
실시예 5Example 5 0.30.3 0.40.4 0.50.5 0.60.6 1.51.5 6.56.5 25.125.1
실시예 6Example 6 0.30.3 0.90.9 0.90.9 0.30.3 1.01.0 6.36.3 20.120.1
비교예 1Comparative Example 1 10.410.4 26.126.1 125.1125.1 500.1500.1 751.1751.1 900.1900.1 950.9950.9
상기 표 2에 나타낸 것처럼, 본 발명의 실시예 1 내지 6을 통해 제조된 흡착제 조성물은 재생 후에도 휘발성 유기화합물에 대해 우수한 흡착성능을 나타내는 것을 알 수 있다.As shown in Table 2, it can be seen that the adsorbent compositions prepared through Examples 1 to 6 of the present invention exhibit excellent adsorption performance for volatile organic compounds even after regeneration.
또한, 상기 실시예 1 내지 6 및 비교예 1을 통해 제조된 활성탄 흡착제로 2 회차 재생 후 흡착성능을 측정하여 아래 표 3에 나타내었다.In addition, the adsorption performance was measured after two regeneration with the activated carbon adsorbent prepared through Examples 1 to 6 and Comparative Example 1, and is shown in Table 3 below.
{단, 재생성능은 공간속도 10000SV, 휘발성 유기화합물은 톨루엔을 사용하되, 초기 농도 1,000ppm의 조건에서 1 내지 7시간 동안 톨루엔을 흡착하도록 한 후에 165℃의 온도에서 공간속도 2000SV로 재생하고, 다시 공간속도 10000SV, 휘발성 유기화합물은 톨루엔을 사용하되, 초기 농도 1,000ppm의 조건에서 1 내지 7시간 동안 흡착제에 흡착되지 않고 남은 톨루엔의 농도를 흡착제의 후면에서 측정하는 방법을 이용하였다.}{However, the regeneration performance is at a space velocity of 10000SV, and the volatile organic compound uses toluene. After toluene is adsorbed for 1 to 7 hours at an initial concentration of 1,000ppm, it is regenerated at a space velocity of 2000SV at a temperature of 165°C, and then regenerated again. The space velocity was 10000 SV, toluene was used as the volatile organic compound, and the concentration of toluene remaining without being adsorbed on the adsorbent for 1 to 7 hours was measured at the back of the adsorbent at an initial concentration of 1,000 ppm.}
구분division 경과시간Elapsed time
1시간1 hours 2시간2 hours 3시간3 hours 4시간4 hours 5시간5 hours 6시간6 hours 7시간7 hours
실시예 1Example 1 0.40.4 126.1126.1 535.6535.6 737.5737.5 802.3802.3 930.9930.9 981.5981.5
실시예 2Example 2 0.50.5 23.723.7 256.8256.8 722.7722.7 789.5789.5 797.4797.4 965.1965.1
실시예 3Example 3 0.80.8 21.521.5 26.726.7 697.2697.2 499.0499.0 716.2716.2 723.0723.0
실시예 4Example 4 0.50.5 13.413.4 19.919.9 226.3226.3 139.2139.2 140.6140.6 285.5285.5
실시예 5Example 5 0.30.3 0.40.4 0.50.5 59.059.0 1.51.5 6.46.4 25.525.5
실시예 6Example 6 0.30.3 0.90.9 0.90.9 0.60.6 1.01.0 6.56.5 20.520.5
비교예 1Comparative Example 1 13.513.5 34.134.1 162.6162.6 650.1650.1 845.2845.2 950.9950.9 981.3981.3
본 발명의 실시예 1 내지 6을 통해 제조된 흡착제 조성물은 2차 재생 후에도 재생 전과 유사한 성능을 보이나 비교예 1의 경우 지속적으로 흡착 성능이 감소하는 것으로 나타났다.The adsorbent composition prepared through Examples 1 to 6 of the present invention showed similar performance to that before regeneration even after secondary regeneration, but in the case of Comparative Example 1, the adsorption performance was found to continuously decrease.
따라서, 본 발명에 따른 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물은 기공 크기가 제어된 활성탄이 사용되어 휘발성 유기화합물의 탈착성능이 개선되기 때문에 재생이 가능하다.Therefore, the honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds according to the present invention can be regenerated because the desorption performance of volatile organic compounds is improved by using activated carbon with a controlled pore size.

Claims (5)

  1. 기공 크기가 제어된 활성탄, 바인더 및 충전재로 이루어지는 것을 특징으로 하는 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물.A honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds, comprising activated carbon with controlled pore size, a binder, and filler.
  2. 청구항 1에 있어서,In claim 1,
    상기 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물은 기공 크기가 제어된 활성탄 50 내지 75 중량%, 바인더 15 내지 30 중량% 및 충전재 10 내지 20 중량%로 이루어지는 것을 특징으로 하는 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물.The honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds is comprised of 50 to 75% by weight of activated carbon with controlled pore size, 15 to 30% by weight of binder, and 10 to 20% by weight of filler. A honeycomb-type activated carbon adsorbent composition with improved desorption performance.
  3. 청구항 1 또는 2에 있어서,In claim 1 or 2,
    상기 기공 크기가 제어된 활성탄은 40 나노미터 이하의 기공이 0.4mL/g 미만인 것을 특징으로 하는 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물.The activated carbon with controlled pore size is a honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds, characterized in that the pores of 40 nanometers or less are less than 0.4 mL/g.
  4. 청구항 1 또는 2에 있어서,In claim 1 or 2,
    상기 바인더는 카올린으로 이루어지는 것을 특징으로 하는 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물.A honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds, wherein the binder is made of kaolin.
  5. 청구항 1 또는 2에 있어서,In claim 1 or 2,
    상기 충전재는 수경성 산화알루미늄, 팔리고르스카이트 및 세피올라이트로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것을 특징으로 하는 휘발성유기화합물의 탈착 성능이 개선된 허니컴형 활성탄 흡착제 조성물.A honeycomb-type activated carbon adsorbent composition with improved desorption performance of volatile organic compounds, characterized in that the filler is made of at least one selected from the group consisting of hydraulic aluminum oxide, paligorskite, and sepiolite.
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