CN102886242A - Preparation method of organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas - Google Patents
Preparation method of organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas Download PDFInfo
- Publication number
- CN102886242A CN102886242A CN2011102033345A CN201110203334A CN102886242A CN 102886242 A CN102886242 A CN 102886242A CN 2011102033345 A CN2011102033345 A CN 2011102033345A CN 201110203334 A CN201110203334 A CN 201110203334A CN 102886242 A CN102886242 A CN 102886242A
- Authority
- CN
- China
- Prior art keywords
- organic amine
- modified molecular
- molecular sieve
- preparation
- adsorption
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a preparation method of an organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas. The preparation method is characterized in that the organic amine-immobilization modified molecular sieve comprises 75 to 98% by mass of one or more molecular sieves and 25 to 2% by mass of one or more organic amine modifiers; and the one or more molecular sieves are dipped into the one or more organic amine modifiers and then are dried to form the organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas. The organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas has good effects of adsorption purification of sulfur dioxide, sulfur trioxide, hydrogen sulfide, hydrogen cyanide, hydrogen chloride, nitrogen oxide and organic acid gas, has high activity and a low cost, can be prepared simply, has a large adsorption capacity and can be recycled.
Description
Technical field
The present invention relates to a kind of preparation method of modified molecular screen, particularly relate to a kind of preparation method of efficient adsorption sour gas modified molecular screen of immobilized organic amine.
Background technology
Carbon dioxide, sulfur dioxide, sulfur trioxide, hydrogen sulfide, hydrogen cyanide, hydrogen chloride, nitrogen oxide and organic acid etc. are the major pollutants of atmospheric environment, the main gas air draft by motor-vehicle tail-gas, power plant, chemical plant and pharmaceutical factory etc. in its source, one of important pollution sources of atmospheric environment, serious harm people, animal, plant and building etc.Therefore, a kind of material with solid and gas phase efficient adsorption acid gas purifying air of preparation has good realistic meaning.Document discloses a kind of liquid catalyst of can remove smoke simultaneously middle sulphur and the nitrogen of being made by constant weight umber proportioning by NaOH, urea, monoethanolamine, diethanol amine.Document discloses a kind of method of utilizing dimethylethanolamine and co-catalyst liquid phase efficiently to deviate from water or carbon dioxide.Document also discloses and above two methods that the similar liquid phase of patent is deviate from sour gas.
The patent of below efficiently deviating from the sour gas pollutant all is confined to the liquid flux purification of acidic gas, and the gas-liquid two-phase reaction namely occurs.Mass-transfer efficiency is high although the method has, sufficient reacting and purification efficiency advantages of higher, the shortcoming such as also have the reaction unit complex structure simultaneously, technological process is long, cost is high and operation is inconvenient.
The present invention is immobilized to business-like each molecular sieve analog with organic amine, prepares and uses simple solid acid gas purification material, makes sour gas generation gas-solid phase reaction.Have the reaction process flow process short, simplified purifier, made things convenient for replacing and the renewable advantage such as recycle of scavenging material.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of efficient adsorption sour gas modified molecular screen of immobilized organic amine.This modified molecular screen has active high, the characteristics such as specific area large, good stability, strong adaptability and adsorption capacity are large, can be widely used in that atmospheric environment is administered, plant tail gas purifies and the field such as chemical industry.After modified molecular screen absorption is saturated, can use by regeneration circulation.
The invention provides a kind of preparation method of efficient adsorption sour gas modified molecular screen of immobilized organic amine, it is characterized in that, modified molecular screen is comprised of molecular sieve and organic amine modifier, and its mass percent component is molecular sieve 75 ~ 98%, organic amine modifier 25 ~ 2%; Through organic amine modifier impregnated zeolite, carry out again the efficient adsorption sour gas modified molecular screen that drying makes immobilized organic amine.
Described molecular sieve is a kind of or its combination among 3A, 4A, 5A, 13X, the ZSM-5.
Described organic amine modifier, its boiling point are not less than 100 ℃, are one or more compositions in monoethanolamine, diethanol amine, triethanolamine, the ethylenediamine.
Organic amine modifier is mixed with maceration extract, and impregnated zeolite made the modified molecular screen of efficient adsorption sour gas by 80 ~ 120 ℃ of lower oven dry 2 ~ 10 hours in 2 ~ 24 hours.
Sorbing material performance evaluation is carried out in U-shaped glass tube reactor, consumption 3ml, and granularity 20～40 orders, unstripped gas consists of SO
2Be example, its content is 5～200ppm, and all the other are air.30 ℃ of adsorption temps, pressure 0.1MPa, relative humidity 40～90%, air speed (GHSV) is 20000h
-1
The specific embodiment:
The present invention is further described below in conjunction with the concrete preparation process of modified molecular screen:
Take by weighing a certain amount of ethylenediamine (or other organic amines) and be dissolved in and be mixed with maceration extract in the deionized water, again with this maceration extract with excess volume impregnation method dipping 20 ~ 40 purpose 5A molecular sieves (or other molecular sieves).Flood 2 hours by 90 ℃ of lower oven dry 3 hours, make the 5A molecular sieve adsorption material of modification;
Embodiment 1
Taking by weighing a certain amount of triethanolamine is dissolved in the 8ml deionized water, be mixed with maceration extract, take the excess volume impregnation method to be impregnated into 3ml this maceration extract, on 20 ~ 40 purpose 3A molecular sieves, dipping made the 3A molecular sieve adsorption material that contains 5% triethanolamine modification by 90 ℃ of oven dry 3 hours in 2 hours under the room temperature.
Made sorbing material is carried out the absorption property evaluation according to the afore-mentioned test condition, and it is to SO
2Adsorption efficiency be 86.3%.
Embodiment 2
Taking by weighing a certain amount of diethanol amine is dissolved in the 8ml deionized water, be mixed with maceration extract, take the excess volume impregnation method to be impregnated into 3ml this maceration extract, on 20 ~ 40 purpose 3A molecular sieves, dipping made the 3A molecular sieve adsorption material that contains 5% diethanol amine modification by 90 ℃ of oven dry 3 hours in 2 hours under the room temperature.
Made sorbing material is carried out the absorption property evaluation according to the afore-mentioned test condition, and it is to SO
2Adsorption efficiency be 90.5%.
Embodiment 3
Taking by weighing a certain amount of monoethanolamine is dissolved in the 8ml deionized water, be mixed with maceration extract, take the excess volume impregnation method to be impregnated into 3ml this maceration extract, on 20 ~ 40 purpose 3A molecular sieves, dipping made the 3A molecular sieve adsorption material that contains 5% monoethanolamine modification by 90 ℃ of oven dry 3 hours in 2 hours under the room temperature.
Made sorbing material is carried out the absorption property evaluation according to the afore-mentioned test condition, and it is to SO
2Adsorption efficiency be 93.1%.
Embodiment 4
Taking by weighing a certain amount of ethylenediamine is dissolved in the 8ml deionized water, be mixed with maceration extract, take the excess volume impregnation method to be impregnated into 3ml this maceration extract, on 20 ~ 40 purpose 3A molecular sieves, dipping made the 3A molecular sieve adsorption material that contains 5% ethylenediamine modification by 90 ℃ of oven dry 3 hours in 2 hours under the room temperature.
Made sorbing material is carried out the absorption property evaluation according to the afore-mentioned test condition, and it is to SO
2Adsorption efficiency be 96.1%.
Embodiment 5
Taking by weighing a certain amount of ethylenediamine is dissolved in the 8ml deionized water, be mixed with maceration extract, take the excess volume impregnation method to be impregnated into 3ml this maceration extract, on 20 ~ 40 order 5A molecular sieves, dipping made the 5A molecular sieve adsorption material that contains 5% ethylenediamine modification by 90 ℃ of oven dry 3 hours in 2 hours under the room temperature.
Made sorbing material is carried out the absorption property evaluation according to the afore-mentioned test condition, and it is to SO
2Adsorption efficiency be 98.2%.
Embodiment 6
Taking by weighing a certain amount of ethylenediamine is dissolved in the 8ml deionized water, be mixed with maceration extract, take the excess volume impregnation method to be impregnated into 3ml this maceration extract, on 20 ~ 40 order 5A molecular sieves, dipping made the 5A molecular sieve adsorption material that contains 10% ethylenediamine modification by 90 ℃ of oven dry 3 hours in 2 hours under the room temperature.
Made sorbing material is carried out the absorption property evaluation according to the afore-mentioned test condition, and it is to SO
2Adsorption efficiency be 99.4%.
Embodiment 7
Taking by weighing a certain amount of ethylenediamine is dissolved in the 8ml deionized water, be mixed with maceration extract, take the excess volume impregnation method to be impregnated into 3ml this maceration extract, on 20 ~ 40 order 13X molecular sieves, dipping made the 13X molecular sieve adsorption material that contains 5% ethylenediamine modification by 90 ℃ of oven dry 3 hours in 2 hours under the room temperature.
Made sorbing material is carried out the absorption property evaluation according to the afore-mentioned test condition, and it is to SO
2Adsorption efficiency be 99.5%.
Embodiment 8
Taking by weighing a certain amount of ethylenediamine is dissolved in the 8ml deionized water, be mixed with maceration extract, take the excess volume impregnation method to be impregnated into 3ml this maceration extract, on 20 ~ 40 order 13X molecular sieves, dipping made the 13X molecular sieve adsorption material that contains 10% ethylenediamine modification by 90 ℃ of oven dry 3 hours in 2 hours under the room temperature.
Made sorbing material is carried out the absorption property evaluation according to the afore-mentioned test condition, and it is to SO
2Adsorption efficiency be 99.8%.
Claims (4)
1. the preparation method of the efficient adsorption sour gas modified molecular screen of an immobilized organic amine is characterized in that, modified molecular screen is comprised of molecular sieve and organic amine modifier, and its mass percent component is molecular sieve 75 ~ 98%, organic amine modifier 25 ~ 2%; Through organic amine modifier impregnated zeolite, carry out again the efficient adsorption sour gas modified molecular screen that drying makes immobilized organic amine.
2. the preparation method of the efficient adsorption sour gas modified molecular screen of immobilized organic amine according to claim 1 is characterized in that described molecular sieve is a kind of or its combination among 3A, 4A, 5A, 13X, the ZSM-5.
3. the preparation method of the efficient adsorption sour gas modified molecular screen of immobilized organic amine according to claim 1, it is characterized in that described organic amine modifier, its boiling point is not less than 100 ℃, is one or more compositions in monoethanolamine, diethanol amine, triethanolamine, the ethylenediamine.
4. the preparation method of the efficient adsorption sour gas modified molecular screen of immobilized organic amine according to claim 1, it is characterized in that, organic amine modifier is mixed with maceration extract, impregnated zeolite made the modified molecular screen of efficient adsorption sour gas by 80 ~ 120 ℃ of lower oven dry 2 ~ 10 hours in 2 ~ 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102033345A CN102886242A (en) | 2011-07-20 | 2011-07-20 | Preparation method of organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102033345A CN102886242A (en) | 2011-07-20 | 2011-07-20 | Preparation method of organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102886242A true CN102886242A (en) | 2013-01-23 |
Family
ID=47530043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102033345A Pending CN102886242A (en) | 2011-07-20 | 2011-07-20 | Preparation method of organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102886242A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017090825A1 (en) * | 2015-11-24 | 2017-06-01 | 한국과학기술원 | Diamine-zeolite composite and method for preparing same |
| CN107174942A (en) * | 2017-06-02 | 2017-09-19 | 恒力有限公司 | Composite material for air cleaning and air purifier and VMC including the material |
| CN112337294A (en) * | 2019-08-07 | 2021-02-09 | 江苏赛隆节能技术工程股份有限公司 | SCR reaction system and method |
| CN115739057A (en) * | 2022-12-21 | 2023-03-07 | 国网河北能源技术服务有限公司 | Regenerated molecular sieve and regeneration method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1895771A (en) * | 2006-06-12 | 2007-01-17 | 南京大学 | Organic-amine-porous composite material for adsorbing carbon dioxide efficiently |
| CN101909743A (en) * | 2007-11-08 | 2010-12-08 | 阿克伦大学 | Amine absorber for carbon dioxide capture and processes for making and using the same |
-
2011
- 2011-07-20 CN CN2011102033345A patent/CN102886242A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1895771A (en) * | 2006-06-12 | 2007-01-17 | 南京大学 | Organic-amine-porous composite material for adsorbing carbon dioxide efficiently |
| CN101909743A (en) * | 2007-11-08 | 2010-12-08 | 阿克伦大学 | Amine absorber for carbon dioxide capture and processes for making and using the same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017090825A1 (en) * | 2015-11-24 | 2017-06-01 | 한국과학기술원 | Diamine-zeolite composite and method for preparing same |
| CN107174942A (en) * | 2017-06-02 | 2017-09-19 | 恒力有限公司 | Composite material for air cleaning and air purifier and VMC including the material |
| CN112337294A (en) * | 2019-08-07 | 2021-02-09 | 江苏赛隆节能技术工程股份有限公司 | SCR reaction system and method |
| CN115739057A (en) * | 2022-12-21 | 2023-03-07 | 国网河北能源技术服务有限公司 | Regenerated molecular sieve and regeneration method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kulkarni et al. | Analysis of equilibrium-based TSA processes for direct capture of CO2 from air | |
| Chao et al. | Post-combustion carbon capture | |
| CN107715845B (en) | Flue gas desulfurization and denitrification adsorbent and preparation and use methods thereof | |
| Liu et al. | Carbon dioxide capture by functionalized solid amine sorbents with simulated flue gas conditions | |
| Adeosun et al. | Evaluation of amine-blend solvent systems for CO2 post-combustion capture applications | |
| Deng et al. | Interactive effect for simultaneous removal of SO2, NO, and CO2 in flue gas on ion exchanged zeolites | |
| CN105289209A (en) | Mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation | |
| Bairq et al. | Modified heterogeneous catalyst-aided regeneration of CO2 capture amines: a promising perspective for a drastic reduction in energy consumption | |
| Liu et al. | NOx removal with efficient recycling of NO2 from iron-ore sintering flue gas: A novel cyclic adsorption process | |
| CN205019964U (en) | SOx/NOx control device system is united to flue gas low temperature | |
| CN101053750A (en) | Flue gas combined desulfurization and denitration method | |
| CN105214445A (en) | A kind of amine absorbent for removing sulfur dioxide in gaseous mixture | |
| Lin et al. | Characteristics, application and modeling of solid amine adsorbents for CO2 capture: A review | |
| Kasikamphaiboon et al. | Simultaneous removal of CO 2 and H 2 S using MEA solution in a packed column absorber for biogas upgrading. | |
| CN104190358B (en) | NOx adsorber | |
| CN102886242A (en) | Preparation method of organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas | |
| CN109593583B (en) | Hydrogen sulfide removal system and desulfurization method | |
| CN103357260A (en) | Flue gas desulfurization-denitration integrated process for strengthening urea by applying ferrous complexing agent | |
| CN104226248A (en) | Preparation method of semicoke-loaded manganin adsorbing agent and application of adsorbing agent | |
| Wilfong et al. | Big data analysis and technical review of regeneration for carbon capture processes | |
| CN108993133A (en) | COS, CS in a kind of promotion natural gas2The method of removing | |
| Oliveira et al. | Updates on biogas enrichment and purification methods: A review | |
| CN102974359A (en) | Simultaneous desulfurization and denitration catalyst and preparation method thereof | |
| CN103432883B (en) | A kind of flue gas laminated desulfurizer | |
| CN103432865B (en) | Composite absorber for flue gas desulfurization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130123 |