KR20210083492A - Apparatus for Pyrolyzing Waste Plastics - Google Patents

Apparatus for Pyrolyzing Waste Plastics Download PDF

Info

Publication number
KR20210083492A
KR20210083492A KR1020190175803A KR20190175803A KR20210083492A KR 20210083492 A KR20210083492 A KR 20210083492A KR 1020190175803 A KR1020190175803 A KR 1020190175803A KR 20190175803 A KR20190175803 A KR 20190175803A KR 20210083492 A KR20210083492 A KR 20210083492A
Authority
KR
South Korea
Prior art keywords
reactor
condenser
waste plastic
catalyst
pyrolysis
Prior art date
Application number
KR1020190175803A
Other languages
Korean (ko)
Inventor
김원용
박사랑
이동호
Original Assignee
한화솔루션 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한화솔루션 주식회사 filed Critical 한화솔루션 주식회사
Priority to KR1020190175803A priority Critical patent/KR20210083492A/en
Publication of KR20210083492A publication Critical patent/KR20210083492A/en

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G11/10—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with stationary catalyst bed
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10—Feedstock materials
    • C10G2300/1003—Waste materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

The present invention relates to a waste plastic pyrolyzing device. Specifically, the present invention relates to a device for producing light hydrocarbon by pyrolyzing waste plastic. A waste plastic pyrolyzing reactor according to a specific example of the present invention improves decomposition efficiency of waste plastic so that production rate and selectivity of light hydrocarbon components having high added values.

Description

폐플라스틱 열분해 장치 {Apparatus for Pyrolyzing Waste Plastics}Pyrolyzing Waste Plastics {Apparatus for Pyrolyzing Waste Plastics}

본 발명은 폐플라스틱 열분해 장치에 관한 것이다. 구체적으로, 본 발명은 폐플라스틱을 열분해하여 경질 탄화수소를 생산하는 장치에 관한 것이다.The present invention relates to a waste plastic pyrolysis device. Specifically, the present invention relates to an apparatus for pyrolyzing waste plastics to produce light hydrocarbons.

산업이 발달함에 따라 플라스틱을 원료로 하는 상품의 생산이 꾸준히 증가하고 있지만, 폐플라스틱의 재활용은 여전히 제한적이다. 이는 폐플라스틱의 재활용에 상당한 비용이 요구되기 때문이다. 예를 들어, 가정이나 산업 현장으로부터 회수되는 폐플라스틱에 불순물이 혼입되어 있는 경우, 이를 제거하는 데에 상당한 비용이 필요할 뿐만 아니라, 이로부터 재생산되는 플라스틱의 품질에도 한계가 있다.As the industry develops, the production of plastic-based products is steadily increasing, but the recycling of waste plastics is still limited. This is because the recycling of waste plastic requires a significant cost. For example, when impurities are mixed in waste plastics recovered from households or industrial sites, significant cost is required to remove them, and there is a limit to the quality of plastics regenerated therefrom.

폐플라스틱을 재활용하는 방안의 하나로서 이를 열분해하여 오일을 생산하는 방법이 제안되었다. 구체적으로, 폐플라스틱에 고열을 가하여 폐플라스틱을 용융, 분해함으로써 오일을 생산하는 방법이 알려져 있다.As one of the methods of recycling waste plastics, a method of pyrolyzing it to produce oil has been proposed. Specifically, a method for producing oil by melting and decomposing waste plastic by applying high heat to waste plastic is known.

예를 들어, 미국 특허출원공개 제2017/0233657호에는 컨택터를 구비한 열분해 반응기가 개시되어 있다. 이 열분해 반응기 내에 폐플라스틱을 투입한 후 이를 가열 및 분해하여 열분해 가스를 생성하고, 이 열분해 가스 중의 중질 탄화수소(즉, 장쇄 탄화수소) 성분을 컨택터 내에서 응축시켜 열분해 반응기로 순환시킨다. 그런데, 열분해 반응기로 순환된 중질유는 폐플라스틱과 혼합되어 열분해 과정을 거치게 되므로 폐플라스틱의 분해 효율이 크게 높아지지는 않는다.For example, US Patent Application Publication No. 2017/0233657 discloses a pyrolysis reactor having a contactor. After the waste plastic is put into the pyrolysis reactor, it is heated and decomposed to generate pyrolysis gas, and the heavy hydrocarbon (ie, long chain hydrocarbon) component in the pyrolysis gas is condensed in a contactor and circulated to the pyrolysis reactor. However, since the heavy oil circulated to the pyrolysis reactor is mixed with the waste plastic and undergoes a pyrolysis process, the decomposition efficiency of the waste plastic does not increase significantly.

위 장치에서 폐플라스틱의 분해 효율을 높이기 위해 제올라이트와 같은 분자체(molecular sieve) 형태의 촉매 혹은 금속 촉매를 반응기 내에 투입하는 방안을 생각해 볼 수 있지만, 이 경우 용융된 폐플라스틱에 의해 제올라이트나 금속 촉매가 쉽게 피독되기 때문에, 폐플라스틱의 분해 효율을 높이는 데에 한계가 있다.In order to increase the efficiency of decomposition of waste plastics in the above apparatus, a method of introducing a catalyst in the form of a molecular sieve such as zeolite or a metal catalyst into the reactor can be considered, but in this case, zeolite or metal catalyst by the molten waste plastic is easily poisoned, so there is a limit to increasing the decomposition efficiency of waste plastics.

따라서, 폐플라스틱의 열분해 장치에 있어서, 폐플라스틱의 분해 효율을 개선하여 고부가가치의 경질 탄화수소 성분의 생산율과 선택도를 높일 수 있는 장치의 개발이 요구되고 있다.Therefore, in the pyrolysis apparatus for waste plastics, there is a demand for the development of an apparatus capable of improving the decomposition efficiency of waste plastics to increase the production rate and selectivity of high value-added light hydrocarbon components.

미국 특허출원공개 제2017/0233657호US Patent Application Publication No. 2017/0233657

본 발명의 목적은 폐플라스틱의 분해 효율을 개선하여 고부가가치의 경질 탄화수소 성분의 생산율과 선택도를 높일 수 있는 폐플라스틱 열분해 장치를 제공하는 것이다.An object of the present invention is to provide a waste plastic pyrolysis device capable of improving the decomposition efficiency of waste plastics to increase the production rate and selectivity of high value-added light hydrocarbon components.

이러한 목적을 달성하기 위한 본 발명의 일 구체예에 따라서, 교반기(20)를 구비한 반응기(10); 반응기(10) 위에 설치되며 그 내부에 적어도 하나의 응축기 부재(34)를 갖는 응축기(30); 및 반응기(10) 내의 응축기(30) 하단 부근에 설치되며 촉매를 탑재한 용기(50)를 포함하는 폐플라스틱 열분해 장치가 제공된다. 여기서, 응축기 부재(34)는 복수의 개구를 갖고 있어서 응축기 하단으로부터 유입되는 열분해 가스가 위쪽으로 통과하도록 하고, 열분해 가수 중의 중질 탄화수소 성분을 응축시켜 반응기(10) 내의 촉매 탑재 용기(50)로 순환시키며; 촉매 탑재 용기(50)로 순환된 중질 탄화수소 성분은 촉매에 의해 분해되어 경질 탄화수소 성분을 생성하고, 경질 탄화수소 성분은 다시 응축기(30)로 유입되며, 중질 탄화수소 성분 중의 미분해 잔류물은 반응기(10) 내로 순환되는 폐플라스틱 열분해 장치(1)가 제공된다.According to one embodiment of the present invention for achieving this object, the reactor 10 having a stirrer 20; a condenser 30 installed above the reactor 10 and having at least one condenser member 34 therein; And installed near the lower end of the condenser (30) in the reactor (10), there is provided a waste plastic pyrolysis device including a vessel (50) on which the catalyst is mounted. Here, the condenser member 34 has a plurality of openings to allow the pyrolysis gas flowing in from the lower end of the condenser to pass upward, condensing heavy hydrocarbon components in the pyrolysis water, and circulating to the catalyst loading vessel 50 in the reactor 10 . make; The heavy hydrocarbon component circulated to the catalyst loading vessel 50 is decomposed by the catalyst to produce a light hydrocarbon component, the light hydrocarbon component flows back into the condenser 30, and the uncracked residue in the heavy hydrocarbon component is decomposed in the reactor 10 ) is provided with a waste plastic pyrolysis device (1) circulated into.

본 발명의 구체예에 따른 폐플라스틱 열분해 장치는 폐플라스틱의 분해 효율을 개선하여 고부가가치의 경질 탄화수소 성분의 생산율과 선택도를 높일 수 있다.The waste plastic pyrolysis apparatus according to an embodiment of the present invention can improve the decomposition efficiency of waste plastics to increase the production rate and selectivity of high value-added light hydrocarbon components.

도 1은 본 발명의 구체예에 따른 폐플라스틱 열분해 장치의 단면 정면도이다.1 is a cross-sectional front view of a waste plastic pyrolysis apparatus according to an embodiment of the present invention.

이하, 첨부 도면을 참조하여 본 발명에 관하여 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 1을 참조하면, 본 발명의 구체예에 따른 폐플라스틱 열분해 장치(1)는 교반기(20)를 구비한 반응기(10); 반응기(10) 위에 설치되며 그 내부에 적어도 하나의 응축기 부재(34)를 갖는 응축기(30); 및 반응기(10) 내의 응축기(30) 하단 부근에 설치되며 촉매를 탑재한 용기(50)를 포함한다.Referring to FIG. 1 , the waste plastic pyrolysis apparatus 1 according to an embodiment of the present invention includes a reactor 10 having a stirrer 20 ; a condenser 30 installed above the reactor 10 and having at least one condenser member 34 therein; And it is installed near the lower end of the condenser 30 in the reactor 10 includes a vessel 50 in which the catalyst is mounted.

도면에 도시되지 않은 별도의 공정에서 플레이크나 그래뉼 형태로 분쇄된 폐플라스틱이 그 상태로, 혹은 도면에 도시되지 않은 압출기에서 용융되어, 유입구(12)를 통해 반응기(10)로 유입된다. 이때, 폐플라스틱이 250~320℃의 용융 상태로 반응기(10)로 유입되는 것이 바람직하다. 또한, 폐플라스틱이 반응기(10)로 유입될 때 산소가 함께 유입되지 않도록 유입구(12)가 밀봉되어 있다.In a separate process not shown in the figure, the waste plastic pulverized in the form of flakes or granules is melted in its state or in an extruder not shown in the figure, and is introduced into the reactor 10 through the inlet 12 . At this time, it is preferable that the waste plastic is introduced into the reactor 10 in a molten state of 250 to 320 °C. In addition, the inlet 12 is sealed so that oxygen does not flow together when the waste plastic is introduced into the reactor 10 .

본 발명의 구체적인 일 실시예에서, 반응기(10)는 교반기(20)를 구비한 교반형 탱크 반응기(stirred tank-reactor)일 수 있다. 이러한 반응기(10)를 포함하는 본 발명의 구체예에 따른 폐플라스틱 열분해 장치는 회분식(batch type) 또는 연속식(continuous type) 어느 방식으로도 운전이 가능하다.In a specific embodiment of the present invention, the reactor 10 may be a stirred tank-reactor equipped with a stirrer 20 . The waste plastic pyrolysis apparatus according to an embodiment of the present invention including such a reactor 10 can be operated in either a batch type or a continuous type.

본 발명의 구체적인 일 실시예에서, 반응기(10)로 유입되는 폐플라스틱은 그 열분해 효율을 높일 수 있는 촉매를 포함할 수 있다. 이때, 촉매는 저가의 모래, 황토 등으로부터 선택될 수 있으나, 이들로 특별히 제한되는 것은 아니다.In a specific embodiment of the present invention, the waste plastic introduced into the reactor 10 may include a catalyst capable of increasing its thermal decomposition efficiency. In this case, the catalyst may be selected from inexpensive sand, loess, and the like, but is not particularly limited thereto.

모래, 황토와 같은 촉매는 그 화학적 조성에 따른 흡착 표면을 통하여 촉매로서 작용을 할 수 있을 뿐만 아니라 열원 전달의 매개로서 작용하여 열전달 효율을 높일 수 있다. 또한, 고 점성의 유체의 교반을 원활하게 함으로써 열전달뿐만 아니라 반응 진행 중 물질의 확산을 촉진할 수 있다.Catalysts such as sand and loess can not only act as a catalyst through an adsorption surface according to their chemical composition, but also act as a medium for heat source transfer to increase heat transfer efficiency. In addition, by facilitating the agitation of the highly viscous fluid, it is possible to promote not only heat transfer but also diffusion of materials during the reaction.

폐플라스틱과 함께 반응기(10)로 투입된 이러한 촉매는 폐플라스틱이 열분해되고 남은 잔류물과 함께 배출구(14)를 통해 반응기(10) 밖으로 배출된다.This catalyst, which is introduced into the reactor 10 together with the waste plastic, is discharged out of the reactor 10 through the outlet 14 together with the residue remaining after the waste plastic is pyrolyzed.

반응기(10)로 유입된 폐플라스틱은 질소로 퍼지(purge)된 상태에서 교반기(20)에 의해 교반되면서 350~520℃의 온도로 가열되나, 이 온도는 폐플라스틱의 종류에 따라 달라질 수 있다.The waste plastic introduced into the reactor 10 is heated to a temperature of 350 to 520° C. while being stirred by the agitator 20 in a state purged with nitrogen, but this temperature may vary depending on the type of waste plastic.

이때, 폐플라스틱의 가열 수단은 특별히 제한되지 않는다. 본 발명의 구체적인 일 실시예에서, 반응기(10) 외부에 구비된 자켓(16)에 고온/고압의 증기(18)나 온수(18) 또는 열매체유(heat transfer fluid)(18) 등을 통과시켜 폐플라스틱을 가열할 수 있다.At this time, the heating means of the waste plastic is not particularly limited. In a specific embodiment of the present invention, by passing high-temperature/high-pressure steam 18, hot water 18, or heat transfer fluid 18 through the jacket 16 provided outside the reactor 10, Waste plastic can be heated.

교반기(20)는 용융 폐플라스틱을 충분히 교반할 수 있는 것이라면, 그 종류가 특별히 제한되지는 않는다. 본 발명의 구체적인 일 실시예에서, 교반기(20)가 헬리칼 리본형(helical ribbon type) 또는 앵커형(anchor type)일 수 있다. 또한, 교반기(20)가 반응기(10)의 내벽과 약 5 ㎜ 내지 1 ㎝의 간격을 유지하는 것이 폐플라스틱의 교반과 반응기(10) 벽을 통한 열전달을 최대화하는 데 유리하다.The stirrer 20 is not particularly limited in its kind as long as it can sufficiently stir the molten waste plastic. In a specific embodiment of the present invention, the stirrer 20 may be of a helical ribbon type or an anchor type. In addition, it is advantageous for the agitator 20 to maintain a distance of about 5 mm to 1 cm from the inner wall of the reactor 10 in order to maximize agitation of the waste plastic and heat transfer through the wall of the reactor 10 .

반응기(10) 내에서 폐플라스틱이 열분해되어 생성되는 가스는 파이프 연결부(32)를 통해 응축기(30)로 유입된다. 응축기(30)는 그 내부에 적어도 하나의 응축기 부재(34)를 갖고 있다. 각각의 응축기 부재(34)는 열분해 가수 중의 중질 탄화수소 성분이 응축되도록 금속 재질로 이루어져 있다. 응축기 부재(34)를 구성하는 금속 재질은 특별히 제한되지는 않지만, 스테인리스 스틸, 니켈, 티타늄 및 이들의 합금으로 구성되는 군으로부터 선택될 수 있다.Gas generated by thermal decomposition of waste plastic in the reactor 10 is introduced into the condenser 30 through the pipe connection part 32 . The condenser 30 has at least one condenser member 34 therein. Each condenser member 34 is made of a metallic material so that the heavy hydrocarbon component in the pyrolysis water is condensed. The metal material constituting the condenser member 34 is not particularly limited, but may be selected from the group consisting of stainless steel, nickel, titanium, and alloys thereof.

본 발명의 구체적인 일 실시예에서, 응축기 부재(34)는 길이 방향으로 지그재그로 배치되고 응축기의 중앙을 향해 경사지도록 배치된 트레이 형태일 수도 있다. 또는, 각각의 응축기 부재(34)가 중앙이 뚫려 있고 아래쪽으로 좁아지는 깔때기 모양을 가질 수도 있다. 또한, 응축기 부재(34)는 열분해 가스가 통과할 수 있는 복수의 개구(도면에 도시되지 않음)를 갖고 있다.In a specific embodiment of the present invention, the condenser member 34 may be in the form of a tray arranged in a zigzag longitudinal direction and inclined toward the center of the condenser. Alternatively, each condenser member 34 may have a funnel shape with a hole in the center and narrowing downward. Further, the condenser member 34 has a plurality of openings (not shown in the drawings) through which the pyrolysis gas can pass.

응축기(30)로 유입된 열분해 가스는 응축기 부재(34)에 형성되어 있는 복수의 개구를 통하여 위쪽으로 진행하면서, 응축기 부재(34)와 접촉한다. 응축기 부재(34)와 접촉한 열분해 가수 중의 중질 탄화수소 성분은 응축되어 응축기 부재(34)의 경사부를 따라 흘러내리고, 최종적으로 파이프 연결부(32)를 통해 반응기(10) 내로 순환된다. 반응기(10) 내로 유입된 응축 중질 탄화수소 성분은 용기 유입구(52)를 통해 응축기(30) 하단 부근에 설치되어 있는 촉매 탑재 용기(50)로 유입된다. 이때, 응축기(30) 내에서 응축되는 중질 탄화수소 성분의 양은 응축기(30) 외부에 설치되어 있는 자켓(36)의 온도를 제어함으로써 조절할 수 있다. 본 발명의 구체적인 일 실시예에서, 응축기의 자켓(36)은 그 내부를 흐르는 냉각수와 같은 냉각 매질(38)에 의해 냉각될 수 있다.The pyrolysis gas introduced into the condenser 30 proceeds upward through the plurality of openings formed in the condenser member 34 , and contacts the condenser member 34 . The heavy hydrocarbon component in the pyrolysis water in contact with the condenser member 34 is condensed and flows down along the slope of the condenser member 34 , and is finally circulated into the reactor 10 through the pipe connection part 32 . The condensed heavy hydrocarbon component introduced into the reactor 10 flows into the catalyst loading vessel 50 installed near the lower end of the condenser 30 through the vessel inlet 52 . At this time, the amount of the heavy hydrocarbon component condensed in the condenser 30 can be adjusted by controlling the temperature of the jacket 36 installed outside the condenser 30 . In one specific embodiment of the present invention, the jacket 36 of the condenser may be cooled by a cooling medium 38 such as cooling water flowing therein.

열분해되는 폐플라스틱의 종류에 따라 달라질 수 있지만, 촉매 탑재 용기(50)로 유입되는 중질 탄화수소 성분은 통상적으로 탄소수 12~20개의 탄화수소 성분을 포함할 수 있다. 이러한 중질 탄화수소 성분은 용기(50)에 탑재되어 있는 촉매(54)와 접촉하여 분해되고, 그 결과 탄소수 5~12 범위의 경질 탄화수소 성분을 생성할 수 있다.Although it may vary depending on the type of waste plastic to be thermally decomposed, the heavy hydrocarbon component introduced into the catalyst loading container 50 may typically include a hydrocarbon component having 12 to 20 carbon atoms. The heavy hydrocarbon component is decomposed in contact with the catalyst 54 mounted in the vessel 50, and as a result, a light hydrocarbon component having 5 to 12 carbon atoms can be produced.

따라서, 용기(50)에 탑재되는 촉매(54)는 탄소수 12~20개의 탄화수소 성분을 분해할 수 있는 것이면, 그 종류가 특별히 제한되지는 않는다. 본 발명의 구체적인 일 실시예에서, 촉매가 전이금속, 알루미나, 제올라이트, 실리코-알루미노포스페이트, 메탈로알루미노포스페이트 및 이들의 조합으로 구성되는 군으로부터 선택되는 것을 포함할 수 있다. 바람직하게는, 촉매가 제올라이트를 포함할 수 있다.Therefore, the type of the catalyst 54 mounted in the container 50 is not particularly limited as long as it can decompose hydrocarbon components having 12 to 20 carbon atoms. In a specific embodiment of the present invention, the catalyst may include one selected from the group consisting of transition metals, alumina, zeolites, silico-aluminophosphates, metalloaluminophosphates, and combinations thereof. Preferably, the catalyst may comprise a zeolite.

구체적으로, 제올라이트는 기공의 평균 직경이 약 0.7~2.0 ㎚ 범위의 대-기공 제올라이트(large pore zeolite)일 수 있으며, 그 예로는 제올라이트 Y, FAU, EMT, ITQ-21, ITQ-33 및 ERT를 들 수 있지만, 이들로 제한되지는 않는다.Specifically, the zeolite may be a large pore zeolite having an average pore diameter in the range of about 0.7 to 2.0 nm, examples of which include zeolite Y, FAU, EMT, ITQ-21, ITQ-33 and ERT. , but are not limited thereto.

또한, 제올라이트는 기공의 평균 직경이 약 0.39~0.7 ㎚ 범위인 중-기공 제올라이트(medium pore zeolite)일 수 있으며, 그 예로는 페리어라이트, 스틸바이트, SAPO-11, ZSM-5, SSZ-32, ZSM-48 및 ZSM-23을 들 수 있지만, 이들로 제한되지는 않는다.In addition, the zeolite may be a medium pore zeolite having an average pore diameter in the range of about 0.39 to 0.7 nm, such as ferrierite, stilbite, SAPO-11, ZSM-5, SSZ-32. , ZSM-48 and ZSM-23.

또한, 제올라이트는 대-기공 제올라이트와 중-기공 제올라이트의 혼합물일 수도 있다.The zeolite may also be a mixture of large-pore zeolites and medium-pore zeolites.

본 발명의 구체적인 일 실시예에 있어서, 제올라이트 등의 촉매 성분이 바인더와 함께 펠렛 형태로 용기에 채워지거나 촉매 성분이 허니컴 구조의 지지체에 코팅된 형태로 용기에 탑재될 수 있다.In a specific embodiment of the present invention, a catalyst component such as zeolite may be filled in a container in the form of pellets together with a binder, or the catalyst component may be mounted in a container in a form coated on a support having a honeycomb structure.

촉매 탑재 용기(50) 내에서 중질 탄화수소 성분이 촉매(54)와 접촉하여 분해됨으로써 생성되는 경질 탄화수소 성분은 용기 유입구(52)와 파이프 연결부(32)를 통해 다시 응축기(30)로 유입된다. 이 경질 탄화수소 성분은 반응기(10)로부터 유입되는 열분해 가스와 함께 응축기(30) 상부로 이동하고, 열분해 가스 중 응축기(30) 내에서 응축되지 않은 최종 경질 탄화수소 성분은 배출구(40)를 통해 후처리 공정으로 이송된다.The light hydrocarbon component produced by decomposing the heavy hydrocarbon component in contact with the catalyst 54 in the catalyst loading vessel 50 is introduced into the condenser 30 again through the vessel inlet 52 and the pipe connection part 32 . This light hydrocarbon component moves to the upper part of the condenser 30 together with the pyrolysis gas flowing in from the reactor 10, and the final light hydrocarbon component that is not condensed in the condenser 30 among the pyrolysis gas is post-processed through the outlet 40 transferred to the process.

촉매 탑재 용기(50) 내에서 촉매와 접촉 후 분해되지 않은 중질 탄화수소의 잔류물은 용기 유출구(56)를 통해 반응기(10)로 순환되어 열분해 과정을 거치는 폐플라스틱과 혼합된다.Residues of heavy hydrocarbons that have not been decomposed after contact with the catalyst in the catalyst loading vessel 50 are circulated to the reactor 10 through the vessel outlet 56 and mixed with the waste plastic undergoing pyrolysis process.

본 발명의 구체예에 따른 폐플라스틱 열분해 장치는 폐플라스틱의 추가로 에너지를 소비하지 않으면서 폐플라스틱의 분해 효율을 개선하여 고부가가치의 경질 탄화수소 성분의 생산율과 선택도를 높일 수 있다.The waste plastic pyrolysis apparatus according to an embodiment of the present invention can improve the decomposition efficiency of waste plastics without consuming additional energy, thereby increasing the production rate and selectivity of high value-added light hydrocarbon components.

1: 폐플라스틱 열분해 장치
10: 반응기
12: 유입구
14: 배출구
16: 자켓
18: 열매체유
20: 교반기
30: 응축기
32: 연결부
34: 응축기 부재
36: 자켓
38: 냉각 매질
40: 배출구
50: 용기
52: 유입구
54: 촉매
56: 배출구1: Waste plastic pyrolysis device
10: reactor
12: inlet
14: outlet
16: jacket
18: thermal oil
20: agitator
30: condenser
32: connection
34: no condenser
36: jacket
38: cooling medium
40: outlet
50: courage
52: inlet
54: catalyst
56: outlet

Claims (1)

교반기(20)를 구비한 반응기(10); 반응기(10) 위에 설치되며 그 내부에 적어도 하나의 응축기 부재(34)를 갖는 응축기(30); 및 반응기(10) 내의 응축기(30) 하단 부근에 설치되며 촉매를 탑재한 용기(50)를 포함하는 폐플라스틱 열분해 장치로서, 응축기 부재(34)는 복수의 개구를 갖고 있어서 응축기 하단으로부터 유입되는 열분해 가스가 위쪽으로 통과하도록 하고, 열분해 가수 중의 중질 탄화수소 성분을 응축시켜 반응기(10) 내의 촉매 탑재 용기(50)로 순환시키며; 촉매 탑재 용기(50)로 순환된 중질 탄화수소 성분은 촉매에 의해 분해되어 경질 탄화수소 성분을 생성하고, 경질 탄화수소 성분은 다시 응축기(30)로 유입되며, 중질 탄화수소 성분 중의 미분해 잔류물은 반응기(10) 내로 순환되는 폐플라스틱 열분해 장치(1).a reactor (10) with a stirrer (20); a condenser 30 installed above the reactor 10 and having at least one condenser member 34 therein; And a waste plastic pyrolysis device installed near the lower end of the condenser 30 in the reactor 10 and comprising a container 50 on which the catalyst is mounted, wherein the condenser member 34 has a plurality of openings, so that the pyrolysis introduced from the lower end of the condenser allowing the gas to pass upward, condensing the heavy hydrocarbon components in the pyrolysis hydrolysis and circulating it to the catalyst loading vessel (50) in the reactor (10); The heavy hydrocarbon component circulated to the catalyst loading vessel 50 is decomposed by the catalyst to produce a light hydrocarbon component, the light hydrocarbon component flows back into the condenser 30, and the uncracked residue in the heavy hydrocarbon component is decomposed in the reactor 10 ) a waste plastic pyrolysis device (1) circulated into it.
KR1020190175803A 2019-12-27 2019-12-27 Apparatus for Pyrolyzing Waste Plastics KR20210083492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020190175803A KR20210083492A (en) 2019-12-27 2019-12-27 Apparatus for Pyrolyzing Waste Plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190175803A KR20210083492A (en) 2019-12-27 2019-12-27 Apparatus for Pyrolyzing Waste Plastics

Publications (1)

Publication Number Publication Date
KR20210083492A true KR20210083492A (en) 2021-07-07

Family

ID=76862147

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190175803A KR20210083492A (en) 2019-12-27 2019-12-27 Apparatus for Pyrolyzing Waste Plastics

Country Status (1)

Country Link
KR (1) KR20210083492A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102539139B1 (en) * 2022-10-04 2023-06-01 창원대학교 산학협력단 A catalytic reaction process that decomposes the wax component of the pyrolysis oil produced in the waste plastic pyrolysis process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170233657A1 (en) 2014-08-28 2017-08-17 Cynar Plastics Recycling Limited Improvements relating to pyrolysis reactor systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170233657A1 (en) 2014-08-28 2017-08-17 Cynar Plastics Recycling Limited Improvements relating to pyrolysis reactor systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102539139B1 (en) * 2022-10-04 2023-06-01 창원대학교 산학협력단 A catalytic reaction process that decomposes the wax component of the pyrolysis oil produced in the waste plastic pyrolysis process

Similar Documents

Publication Publication Date Title
CN109563413B (en) Synchronous catalytic method for mixed plastic pyrolysis and pyrolysis oil dechlorination
US9376632B2 (en) Apparatus for conducting thermolysis of plastic waste and method of thermolysis in continuous manner
KR100202467B1 (en) Polymer cracking
JP5305400B2 (en) Waste plastic catalytic cracking method and waste plastic catalytic cracking apparatus
US10494572B2 (en) Method for the degrading of synthetic polymers and device for carrying out said method
US20160130505A1 (en) Process and plant for conversion of waste material to liquid fuel
EP1707614A1 (en) Thermal or catalytic cracking process for hydrocarbon feedstocks and corresponding system
US20100068123A1 (en) Carbon nano-fibre production
Masuda et al. Chemical recycling of mixture of waste plastics using a new reactor system with stirred heat medium particles in steam atmosphere
JP2005163013A (en) Diesel oil produced from residue by catalytic cracking comprising inputting energy from pump/agitator system
BG98848A (en) Method for the decomposition of hydrocarbons
US11466218B2 (en) Catalytic reactor apparatus for conversion of plastics
KR20230118994A (en) Process of depolymerizing waste plastic materials
KR20210083492A (en) Apparatus for Pyrolyzing Waste Plastics
CN116783242A (en) Depolymerization process of solid mixed plastic
WO2013119187A2 (en) Method for thermal decomposition of organic material and equipment for implementation of this method
EP2393875A1 (en) The method of thermocatalytic depolymerization of waste plastics, a system for thermocatalytic depolymerization of waste plastics and a reactor for thermocatalytic depolymerization of waste plastics
KR100241543B1 (en) Method of decomposing waste plastic and apparatus thereof
CN1219851C (en) Self coke-cleaning equipment for cracking waste plastic, olefin and heavy oil
JP2012188663A (en) Apparatus and method for catalytically cracking and liquefying plastic
JPH0386791A (en) Manufacture of low boiling-point hydrocarbon oil
JP2013103998A (en) Waste plastic catalytic cracking liquefaction apparatus and catalytic cracking liquefaction method
JPH06228569A (en) Method and equipment for decomposition of waste plastic
HUSSAIN et al. Non-uniform Microwave Heating of Heterogeneous Systems: How to Turn Problems into Opportunities
JPH0967581A (en) Method for removing hydrogen chloride from waste plastics containing vinyl chloride

Legal Events

Date Code Title Description
A201 Request for examination