CN101279236A - Purificant for adsorbing ammonia gas and method of preparing the same - Google Patents
Purificant for adsorbing ammonia gas and method of preparing the same Download PDFInfo
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- CN101279236A CN101279236A CN 200810016263 CN200810016263A CN101279236A CN 101279236 A CN101279236 A CN 101279236A CN 200810016263 CN200810016263 CN 200810016263 CN 200810016263 A CN200810016263 A CN 200810016263A CN 101279236 A CN101279236 A CN 101279236A
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- ammonia gas
- purificant
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- adsorbing ammonia
- adsorption
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/024—Purification
Abstract
The invention relates to an ammonia gas purificatory absorbent and a preparation method thereof, which belongs to the technical field of a purificant and a preparation method thereof. The ammonia gas purificatory absorbent is prepared by using a porous material as a carrier and making use of acidoid chemical modification. The preparation method includes the following steps: firstly, a steeping fluid is diluted into an acid solution of 13 to 17 percent by a de-ionized water; secondly, powders of the carrier is weighed up and added into the acid solution, heated to the temperature ranging from 40 DEG C to 60 DEG C, stirred for 3 through 5 hours, dried at the temperature ranging from 100 DEG C to 140 DEG C after being filtrated and then porphyrized with a mortar, which specifies the application of the purificatory absorbent in the adsorption and purification of the ammonia gas. The purificatory absorbent of the invention can be applied to the treatment of large quantity of industrial waste ammonia gas or the adsorption and purification of the ammonia gas of lower concentration in the air. The preparation method can remarkably enhance the surface acidity of the adsorptive materials, strengthen the adsorption ability of the ammonia gas, increase the adsorption capacity of the unit purificatory absorbent, improve the adsorption bonding force, prevent from desorption and acquire higher purification efficiency for the ammonia gas.
Description
One, technical field
The present invention relates to a kind of purificant for adsorbing ammonia gas and preparation method thereof, particularly adopt the method for acid solution impregnating porous materials to prepare this absorption purifier, belong to cleanser and preparation method's technical field.
Two, background technology
Ammonia is mainly used in makes nitric acid, explosive, synthetic fibers, is used for the antidiuresis element in a large number, and ammonium fertilizer also can be used as cold-producing medium.Ammonia is a kind of common indoor air pollutants as a kind of common concrete antifreezer in addition.Ammonia is a kind of colourless gas, and the excitant foul smell is arranged, and lta is very easily water-soluble, easily liquefaction.Liquid ammonia will corrode some plastic products, rubber and coating.Meet heat, naked light, be difficult to light and danger is lower.
Ammonia has toxicity, suck in a short time can occur shedding tears behind a large amount of ammonias, pharyngalgia, hoarseness, cough, phlegm can be with the trace of blood, uncomfortable in chest, expiratory dyspnea, can be with dizzy, headache, feel sick, vomiting, weak etc., can occur that cyanosis, eye conjunctiva and congestion of throat and oedema, respiratory rate are fast, pulmonary rale etc.Pulmonary edema, adult respiratory distress syndrome (ARDS) can take place in severe patient, and edema of the larynx spasm or tunica mucosa bronchiorum necrosis come off to cause and suffocate, also can concurrent pneumothorax, mediastinal emphesema.Sucking high concentration can be dead rapidly.
Cleaning Technology of Indoor Air mainly contains technology such as photocatalytic degradation, absorption, plasma technology, ozone treatment, anion processing at present.Wherein, photocatalysis needs enough strong ultraviolet light, and catalytic efficiency is low, and ammonia is difficult to oxidation and the oxidation meeting produces the bigger pollutants of toxicity such as nitrogen oxide, and photocatalysis method is inapplicable; It is inapplicable in the room that ozone technology is easy to generate big air pollution, and equally with the ammonia oxidation, can produce toxic pollutant; Anion technology can only make on the room air sense organ and become pure and fresh, does not have the effect of decontamination of chemical pollutant.Can adopt the method for washing to absorb ammonia in addition, but operating equipment is unprecedentedly very big, and causes corrosive secondary pollution easily.Application experience with developed country such as America and Europe decades shows: adsorption and purification technology is a most important and effective method the most in the purification techniques that pollutes of ammonia.
The adsorption and purification technology of ammonia substantially all is to utilize charcoal absorption at present.And ammonia is a small-molecule substance, and boiling point is the non-constant of adsorption capacity of low activity charcoal very.Therefore, it is very necessary to develop the cleanser that the higher indoor ammonia of a kind of efficient pollutes.
Three, summary of the invention
The objective of the invention is to solve the weak point that above-mentioned prior art exists, provide a kind of and have non-toxic and safe, be convenient to operation,, the purificant for adsorbing ammonia gas of the porous support type of characteristics such as absorption purifying effect is lasting for ammonia adsorption cleaning efficient height; And provide the employing acid solution to flood, can significantly strengthen the surface acidity of sorbing material, enhancing is for the adsorption capacity of ammonia, increase the adsorption capacity of unit absorption purifier, improve the absorption adhesion, prevent desorption, obtain the preparation method of this purificant for adsorbing ammonia gas of higher ammonia decontamination efficient.
The present invention is achieved by the following technical solutions:
A kind of purificant for adsorbing ammonia gas is removed ammonia based on absorption principle, is carrier by porous material, utilizes the acidic materials chemical modification to be prepared from.
Carrier is one or several in active carbon, activated alumina, the zeolite molecular sieve, and wherein the specific area of active carbon is 700-1500m
2/ g, the activated alumina specific area is 180-350m
2/ g, zeolite molecular sieve can be the zeolite molecular sieves of A type, X type, Y type and other type.Flood after above-mentioned carrier may be used alone, can also be used in combination, utilize the acidic materials chemical modification to be prepared from, also can flood the back simultaneously and mix.
The preparation method of above-mentioned purificant for adsorbing ammonia gas may further comprise the steps
At first, maceration extract is diluted to the acid solution of 13-17% with deionized water;
Secondly, take by weighing support powder and join in the acid solution, be heated under the temperature 40-60 ℃ condition and stirred 3-5 hour, filter the back and do, use the mortar porphyrize in 100-140 ℃ of roars of laughter.
The preparation method of above-mentioned purificant for adsorbing ammonia gas adopts strongly acidic solution to carry out the chemical modification of carrier, and the method for modification adopts infusion process, and maceration extract can be the aqueous solution of nitric acid, sulfuric acid, hydrochloric acid, phosphoric acid;
Adopting acid solution that the method that porous carrier carries out chemical modification is adopted infusion process, can be equivalent impregnation method or excessive infusion process;
The application of above-mentioned absorption purifier in the ammonia adsorption cleaning.
The present invention is based on absorption principle and remove the absorption purifier of ammonia, by porous materials such as active carbon, activated alumina, zeolite molecular sieves is carrier, adopt the highly acid material to carry out chemical modification, be prepared by infusion process, but in a large amount of ammonia treatment of waste gas of applicable industry or the air than the adsorption cleaning of dilute concentration ammonia.
The preparation method of purificant for adsorbing ammonia gas of the present invention, adopt acid solution to carry out the dipping modification of carrier, improve in the hole of carrier and characteristics such as the structure on surface and polarity, can significantly strengthen the surface acidity of sorbing material, by strengthening adsorption capacity for ammonia with the neutralization reaction of alkaline gas, increase the adsorption capacity of unit absorption purifier, improve the absorption adhesion, prevent desorption, and then obtain higher ammonia decontamination efficient.
Four, the specific embodiment
Below provide the specific embodiment of the present invention, be used for formation of the present invention is further specified but the present invention is not limited to following examples.
Preparation and the performance evaluation of embodiment 1 absorption purifier A
A kind of purificant for adsorbing ammonia gas of present embodiment and preparation method thereof is diluted to concentrated hydrochloric acid 15% hydrochloric acid solution with deionized water.Take by weighing zeolite molecular sieve A type powder 120g and join in the dilute hydrochloric acid solution, be heated under 50 ℃ of left and right sides conditions of temperature and stirred 4 hours, filter the back and do in 120 ℃ of roars of laughter, with standby behind the mortar porphyrize, meter is made absorption purifier A.
With the absorption purifier A air cleaner of packing into, and at 30m
3Feed a certain amount of ammonia, airtight sealed compartment in the sealed compartment.Adopt " ammonia assay method indophenol blue AAS in the public place air " (GB/T 18204.25-2000) sampling to carry out the analysis of ammonia concentration.Open air cleaner then, restart after 3 hours to sample and carry out the analysis of ammonia concentration, calculate adsorption cleaning efficient, the results are shown in table 1.
Embodiment 2: the preparation of absorption purifier B and activity
Sulfuric acid is diluted to 13% sulfuric acid solution with deionized water.Taking by weighing specific area is 700-1500m
2/ g active carbon powder 100g, zeolite molecular sieve X type powder 100g join in the sulfuric acid solution, are heated under 40 ℃ of left and right sides conditions of temperature to stir 3 hours, filter the back and do in 140 ℃ of roars of laughter, and with standby behind the mortar porphyrize, meter is made absorption purifier B.
Adopt the method among the embodiment 1 to carry out the mensuration of absorption purifier, the results are shown in table 1 for ammonia adsorption cleaning efficient.
Embodiment 3: the preparation of absorption purifier C
Nitric acid is diluted to 17% salpeter solution with deionized water.Take by weighing Y zeolite molecular sieve type powder 150g and join in the salpeter solution, be heated under 60 ℃ of left and right sides conditions of temperature and stirred 5 hours, filter the back and do in 100 ℃ of roars of laughter, with standby behind the mortar porphyrize, meter is made absorption purifier C.
Adopt the method among the embodiment 1 to carry out the mensuration of absorption purifier, the results are shown in table 1 for ammonia adsorption cleaning efficient.
Embodiment 4: the preparation of absorption purifier D
Phosphoric acid is diluted to 14% phosphoric acid solution with deionized water.Taking by weighing specific area is 700-1500m
2/ g active carbon powder 110g joins in the phosphoric acid solution, is heated under 45 ℃ of left and right sides conditions of temperature to stir 4.5 hours, filters the back and does in 130 ℃ of roars of laughter, and with standby behind the mortar porphyrize, meter is made absorption purifier D.
Adopt the method among the embodiment 1 to carry out the mensuration of absorption purifier, the results are shown in table 1 for ammonia adsorption cleaning efficient.
Embodiment 5: the preparation of absorption purifier E
Phosphoric acid is diluted to 16% phosphoric acid solution with deionized water.Taking by weighing specific area is 180-350m
2/ g active oxidation aluminium powder 110g joins in the phosphoric acid solution, is heated under 55 ℃ of left and right sides conditions of temperature to stir 3.5 hours, filters the back and does in 130 ℃ of roars of laughter, and with standby behind the mortar porphyrize, meter is made absorption purifier E.
Adopt the method among the embodiment 1 to carry out the mensuration of absorption purifier, the results are shown in table 1 for ammonia adsorption cleaning efficient.
Absorption purifier purification efficiency (%)
A 88
B 83
C 98
D 90
E 92
Table 1: ammonia decontamination efficient
The absorption purifier of above embodiment, by porous materials such as active carbon, activated alumina, zeolite molecular sieves is carrier, adopt the highly acid material to carry out chemical modification, be prepared by infusion process, but in a large amount of ammonia treatment of waste gas of extensive use industry or the air than the adsorption cleaning of dilute concentration ammonia; The preparation method adopts acid solution to carry out the dipping modification of carrier, can significantly strengthen the surface acidity of sorbing material, strengthens the adsorption capacity to ammonia, increase the adsorption capacity of unit absorption purifier, improve the absorption adhesion, prevent desorption, the ammonia decontamination efficient that obtains all is higher than 80%.
Claims (8)
1, a kind of purificant for adsorbing ammonia gas is characterized in that, is carrier by porous material, utilizes the acidic materials chemical modification to be prepared from.
According to the described a kind of purificant for adsorbing ammonia gas of claim 1, it is characterized in that 2, carrier is one or several in active carbon, activated alumina, the zeolite molecular sieve.
According to the described a kind of purificant for adsorbing ammonia gas of claim 2, it is characterized in that 3, wherein the specific area of active carbon is 700-1500m
2/ g, the activated alumina specific area is 180-350m
2/ g, zeolite molecular sieve are the zeolite molecular sieves of A type or X type or Y type or other type.
4, the preparation method of claim 1 or 2 or 3 described a kind of purificant for adsorbing ammonia gas is characterized in that, may further comprise the steps
At first, maceration extract is diluted to the acid solution of 13-17% with deionized water;
Secondly, take by weighing support powder and join in the acid solution, be heated under the temperature 40-60 ℃ condition and stirred 3-5 hour, filter the back and do, use the mortar porphyrize in 100-140 ℃ of roars of laughter.
According to the preparation method of the described a kind of purificant for adsorbing ammonia gas of claim 4, it is characterized in that 5, maceration extract is any one the aqueous solution in nitric acid, sulfuric acid, hydrochloric acid, the phosphoric acid.
According to the preparation method of the described a kind of purificant for adsorbing ammonia gas of claim 4, it is characterized in that 6, the infusion process of employing is equivalent impregnation method or excessive infusion process.
7, according to the preparation method of the described a kind of purificant for adsorbing ammonia gas of claim 4, it is characterized in that, mix the formation absorption purifier after described carrier floods again.
8, claim 1 or 2 or 3 application of described absorption purifier in the ammonia adsorption cleaning.
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| CN 200810016263 CN101279236A (en) | 2008-05-23 | 2008-05-23 | Purificant for adsorbing ammonia gas and method of preparing the same |
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| CN 200810016263 CN101279236A (en) | 2008-05-23 | 2008-05-23 | Purificant for adsorbing ammonia gas and method of preparing the same |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266702A (en) * | 2011-06-03 | 2011-12-07 | 清华大学 | Method for capturing ammonia in industrial waste gas and equipment and application thereof |
| CN102627277A (en) * | 2012-04-11 | 2012-08-08 | 太原理工大学 | Modified active carbon and method for removing ammonia gas in intensive livestock farm |
| CN104368307A (en) * | 2014-11-04 | 2015-02-25 | 东北林业大学 | Preparation method of special active carbon for ammonia adsorption |
| CN105268399A (en) * | 2014-07-09 | 2016-01-27 | 江苏瑞丰科技实业有限公司 | Normal-temperature high-efficiency treating material for ammonia gas |
| CN105381785A (en) * | 2015-12-16 | 2016-03-09 | 无锡吉进环保科技有限公司 | Method for preparing ammonia cleaning agent |
| CN107282024A (en) * | 2017-08-31 | 2017-10-24 | 安庆徽云博冠化妆品科技有限公司 | A kind of preparation method of organic adsorption type material for air purification |
| CN107952413A (en) * | 2017-11-24 | 2018-04-24 | 宁夏浦士达环保科技有限公司 | The anti-ammonia activated carbon of modified high-efficient and preparation method |
| CN108067186A (en) * | 2016-11-17 | 2018-05-25 | 天津普瑞特净化技术有限公司 | A kind of acticarbon and its preparation process for loading phosphoric acid |
| CN108136367A (en) * | 2015-08-28 | 2018-06-08 | 塞里奥尼克斯股份有限公司 | For the pneumatic filter of alkaline pollutant |
| CN109045933A (en) * | 2018-10-24 | 2018-12-21 | 江苏凯科环境科技有限公司 | A kind of deodorant and the preparation method and application thereof |
| CN109336133A (en) * | 2018-11-15 | 2019-02-15 | 山东联盛环保科技有限公司 | A kind of device and technique of negative pressure low temperature recycling high concentration ammonium hydroxide |
| CN109550373A (en) * | 2019-01-29 | 2019-04-02 | 艾易西(中国)环保科技有限公司 | One kind is except base material and preparation method thereof |
| CN111821944A (en) * | 2020-07-07 | 2020-10-27 | 美埃(中国)环境科技股份有限公司 | Active carbon modification method for removing ammonia gas in air |
| CN111995351A (en) * | 2020-08-10 | 2020-11-27 | 遵义汉丰装饰材料有限责任公司 | Novel composite gypsum block and application thereof |
| CN113600136A (en) * | 2021-08-04 | 2021-11-05 | 北京市劳动保护科学研究所 | Preparation method of solid adsorbent for collecting ammonia in air and sampling pipe |
| CN113713759A (en) * | 2021-09-15 | 2021-11-30 | 北京工大创客科技有限公司 | Powder for reducing blockage of ammonium bisulfate in air preheater of coal-fired power station and preparation method of powder |
| CN115301070A (en) * | 2022-09-09 | 2022-11-08 | 广东富瑞希空气净化过滤制品有限公司 | Acidic electrolyte air purification filter material and preparation method thereof |
-
2008
- 2008-05-23 CN CN 200810016263 patent/CN101279236A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266702A (en) * | 2011-06-03 | 2011-12-07 | 清华大学 | Method for capturing ammonia in industrial waste gas and equipment and application thereof |
| CN102627277A (en) * | 2012-04-11 | 2012-08-08 | 太原理工大学 | Modified active carbon and method for removing ammonia gas in intensive livestock farm |
| CN102627277B (en) * | 2012-04-11 | 2013-08-14 | 太原理工大学 | Modified active carbon and method for removing ammonia gas in intensive livestock farm |
| CN105268399B (en) * | 2014-07-09 | 2018-05-15 | 江苏瑞丰科技实业有限公司 | Room temperature ammonia efficient process material |
| CN105268399A (en) * | 2014-07-09 | 2016-01-27 | 江苏瑞丰科技实业有限公司 | Normal-temperature high-efficiency treating material for ammonia gas |
| CN104368307A (en) * | 2014-11-04 | 2015-02-25 | 东北林业大学 | Preparation method of special active carbon for ammonia adsorption |
| CN108136367A (en) * | 2015-08-28 | 2018-06-08 | 塞里奥尼克斯股份有限公司 | For the pneumatic filter of alkaline pollutant |
| CN105381785A (en) * | 2015-12-16 | 2016-03-09 | 无锡吉进环保科技有限公司 | Method for preparing ammonia cleaning agent |
| CN108067186A (en) * | 2016-11-17 | 2018-05-25 | 天津普瑞特净化技术有限公司 | A kind of acticarbon and its preparation process for loading phosphoric acid |
| CN107282024A (en) * | 2017-08-31 | 2017-10-24 | 安庆徽云博冠化妆品科技有限公司 | A kind of preparation method of organic adsorption type material for air purification |
| CN107952413A (en) * | 2017-11-24 | 2018-04-24 | 宁夏浦士达环保科技有限公司 | The anti-ammonia activated carbon of modified high-efficient and preparation method |
| CN109045933A (en) * | 2018-10-24 | 2018-12-21 | 江苏凯科环境科技有限公司 | A kind of deodorant and the preparation method and application thereof |
| CN109045933B (en) * | 2018-10-24 | 2021-07-09 | 江苏凯科环境科技有限公司 | Deodorant and preparation method and application thereof |
| CN109336133A (en) * | 2018-11-15 | 2019-02-15 | 山东联盛环保科技有限公司 | A kind of device and technique of negative pressure low temperature recycling high concentration ammonium hydroxide |
| CN109550373A (en) * | 2019-01-29 | 2019-04-02 | 艾易西(中国)环保科技有限公司 | One kind is except base material and preparation method thereof |
| CN111821944A (en) * | 2020-07-07 | 2020-10-27 | 美埃(中国)环境科技股份有限公司 | Active carbon modification method for removing ammonia gas in air |
| CN111995351A (en) * | 2020-08-10 | 2020-11-27 | 遵义汉丰装饰材料有限责任公司 | Novel composite gypsum block and application thereof |
| CN113600136A (en) * | 2021-08-04 | 2021-11-05 | 北京市劳动保护科学研究所 | Preparation method of solid adsorbent for collecting ammonia in air and sampling pipe |
| CN113713759A (en) * | 2021-09-15 | 2021-11-30 | 北京工大创客科技有限公司 | Powder for reducing blockage of ammonium bisulfate in air preheater of coal-fired power station and preparation method of powder |
| CN115301070A (en) * | 2022-09-09 | 2022-11-08 | 广东富瑞希空气净化过滤制品有限公司 | Acidic electrolyte air purification filter material and preparation method thereof |
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Open date: 20081008 |