Method for preparing solid amine gas adsorption material
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-020/26
B01J-020/10
C01B-033/154
B01J-020/291
B01J-020/30
B01J-020/22
B01D-053/02
B01J-020/28
출원번호
US-0647743
(2012-11-27)
등록번호
US-9649618
(2017-05-16)
국제출원번호
PCT/CN2012/085356
(2012-11-27)
국제공개번호
WO2014/082206
(2014-06-05)
발명자
/ 주소
Wang, Baodong
Zhang, Zhonghua
Sun, Qi
출원인 / 주소
National Institute of Clean-and-Low-Carbon Energy
대리인 / 주소
Senniger Powers LLP
인용정보
피인용 횟수 :
1인용 특허 :
2
초록▼
The present invention relates to a method for preparing a solid amine gas adsorption material. The method synthesizes a porous solid amine gas adsorption material that loads organic amine evenly. In the method, a certain amount of acidic gas is introduced while organic amine molecules are introduced
The present invention relates to a method for preparing a solid amine gas adsorption material. The method synthesizes a porous solid amine gas adsorption material that loads organic amine evenly. In the method, a certain amount of acidic gas is introduced while organic amine molecules are introduced into a silicate solution as template agents, which not only makes sizes of SiO2 pore channels homogeneous, but also makes organic amine molecules highly evenly distributed on a surface of SiO2. In addition, the acidic gas protects —NH2 groups of organic amine, and avoids —NH2 adhesion inactivation due to hydrogen bonding during the synthesis process of the material. The present invention also relates to a method for preparing a solid amine gas adsorption material after obtaining a silicate solution from fly ash. The solid amine gas adsorption material prepared has more stable and effective gas adsorption performance.
대표청구항▼
1. A method for preparing a solid amine gas adsorption material, comprising the steps of: 1) adding an organic amine to a silicate solution, introducing an acidic gas to the solution while stirring, until the pH value of the solution is 9 to 11, to obtain a SiO2 sol or gel precipitate; and2) filteri
1. A method for preparing a solid amine gas adsorption material, comprising the steps of: 1) adding an organic amine to a silicate solution, introducing an acidic gas to the solution while stirring, until the pH value of the solution is 9 to 11, to obtain a SiO2 sol or gel precipitate; and2) filtering off the SiO2 sol or gel precipitate from the above solution, and aging, drying, and dehydrating, to obtain a solid amine gas adsorption material. 2. The method according to claim 1, wherein the silicate solution is a sodium silicate solution and/or a potassium silicate solution. 3. The method according to claim 1, wherein the concentration of the silicate solution is 5 to 50 wt %. 4. The method according to claim 1, wherein the silicate solution is prepared by filtering the reaction mixture obtained by subjecting fly ash and an alkali solution to alkali fusion. 5. The method according to claim 4, wherein the source of the alkali in the alkali solution is selected from one or more of a group consisting of amino compounds, alkali hydrides, and alkali hydroxides. 6. The method according to claim 4, wherein fly ash and a 10 to 30 wt % alkali solution are subjected to alkali fusion according to a solid-liquid weight ratio of 1:1 to 1:5. 7. The method according to claim 4, wherein the alkali fusion reaction lasts for 30 to 120 min. 8. The method according to claim 4, wherein the alkali fusion reaction is carried out at a temperature between 30 and 120° C. 9. The method according to claim 1, wherein said acidic gas is selected from one or more of a group consisting of carbon oxides, sulphur oxides, nitrogen oxides, and sulphur hydrides. 10. The method according to claim 1, wherein said organic amine is selected from the group consisting of polyethyleneimine (PEI), tetraethylenepentamine (TEPA), ethylenediamine, butanediamine, hexanediamine, tris(2-aminoethyl)amine, acrylonitrile, cyanuric chloride, diisopropylethylamine, methyl acrylate, and mixtures thereof. 11. The method according to claim 1, wherein the ratio between the mass of the organic amine and the mass of the obtained solid amine gas adsorption material is from 1:10 to 6:10. 12. The method according to claim 1, wherein the flow rate of said acidic gas is 5 to 15 L/min. 13. The method according to claim 1, wherein aging, drying, and dehydrating are performed at a temperature between 100 and 120° C.
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이 특허에 인용된 특허 (2)
Chuang, Steven, Amine absorber for carbon dioxide capture and processes for making and using the same.
Wagle, Vikrant; Al-Yami, Abdullah; Alsaihati, Zainab; Alhelal, Abdulaziz, Well treatment fluid having an acidic nanoparticle based dispersion and a polyamine.
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