IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0720783
(2000-12-29)
|
| 우선권정보 |
DE-0028977 (1998-06-29) |
| 국제출원번호 |
PCT/EP99/04366
(1999-06-23)
|
| §371/§102 date |
20001229
(20001229)
|
| 국제공개번호 |
WO00/00271
(2000-01-06)
|
|
발명자
/ 주소 |
- Christoph Grossmann DE
- Karl-Heinz Hanzel DE
- Dieter Kolassa DE
- Norbert Asprion DE
|
| 출원인 / 주소 |
- BASF Aktiengesellschaft DE
|
| 대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
|
| 인용정보 |
피인용 횟수 :
33 인용 특허 :
20 |
초록
▼
A process for removing acidic gas constituents, of the group consisting of CO2, H2S, COS, CS2 and mercaptans, from gases, in which, in an absorption step, a dirty gas rich in acidic gas constituents is brought into contact with an absorption medium, as a result of which a clean gas low in acidic gas
A process for removing acidic gas constituents, of the group consisting of CO2, H2S, COS, CS2 and mercaptans, from gases, in which, in an absorption step, a dirty gas rich in acidic gas constituents is brought into contact with an absorption medium, as a result of which a clean gas low in acidic gas constituents and an absorption medium laden with acidic gas constituents are obtained, the absorption medium used being a mixture comprisinga) from 0.1 to 50% by weight of one or more mono-cyclic or bicyclic nitrogen heterocycles which are unsubstituted and/or monosubstituted or poly-substituted on the carbon by OH, C1-C3 alkyl and/or C1-C3 hydroxyalkyl and which have from 5 to 14 ring atoms and 1 or 2 heterocyclically bound nitrogen atoms per ring as component A,b) from 1 to 60% by weight of a monohydric and/or polyhydric alcohol as component B,c) from 0 to 60% by weight of an aliphatic aminoalcohol as component C,d) from 0 to 98.9% by weight of water as component D,e) from 0 to 35% by weight of K2CO3 as component E,where the sum of components A, B, C, D and E is 100% by weight.
대표청구항
▼
1. A process for removing acidic gas constituents, of the group consisting of CO2, H2S, COS, CS2 and mercaptans, from gases, in which, in an absorption step, an untreated gas rich in acidic gas constituents is brought into contact with an absorption medium, as a result of which a clean gas low in ac
1. A process for removing acidic gas constituents, of the group consisting of CO2, H2S, COS, CS2 and mercaptans, from gases, in which, in an absorption step, an untreated gas rich in acidic gas constituents is brought into contact with an absorption medium, as a result of which a clean gas low in acidic gas constituents and an absorption medium laden with acidic gas constituents are obtained, which process comprises using as absorption medium a mixture comprisinga) from 0.1 to 50% by weight of one or more mono-cyclic or bicyclic nitrogen heterocycles which are unsubstituted and/or monosubstituted or polysubstituted on the carbon by OH, C1-C3 alkyl and/or C1-C3 hydroxyalkyl and which have from 5 to 14 ring atoms and 1 or 2 heterocyclically bound nitrogen atoms per ring as component A, b) from 1 to 60% by weight of a monohydric and/or polyhydric alcohol as component B, c) from 0 to 60% by weight of an aliphatic aminoalcohol as component C, d) from 0 to 98.9% by weight of water as component D, e) from 0 to 35% by weight of K2CO3 as component E, where the sum of components A, B, C, D and E is 100% by weight.
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