JPS55165109A - Antifoaming method of amine solution - Google Patents
Antifoaming method of amine solutionInfo
- Publication number
- JPS55165109A JPS55165109A JP7374979A JP7374979A JPS55165109A JP S55165109 A JPS55165109 A JP S55165109A JP 7374979 A JP7374979 A JP 7374979A JP 7374979 A JP7374979 A JP 7374979A JP S55165109 A JPS55165109 A JP S55165109A
- Authority
- JP
- Japan
- Prior art keywords
- amine solution
- aqueous amine
- antifoaming
- letting
- acidic gas
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
- B01D19/0409—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing Si-atoms
Abstract
PURPOSE:To suppress foaming by letting the specific amino silicone exist at the time of letting the acidic gas accompanying petroleum refining contact an aqueous amine solution and absorbing away H2S. CONSTITUTION:The acidic gas exhausted in various refining processes of pertoleums is sent into a contact absorption tower where it is continuously contacted with the aqueous amine solution containing about 10-30% of diethanolamine or diisopropanolamine, whereby H2S is absorbed away. If at this time the amino silicone obtained by substituting part of the R1-R8 of the silicone shown by formula with the amine groups shown by general formula -NR9R10(R9, R10 are H or residual hydrocarbon groups of C1-10) is added as an antifoaming agent at about 3-200ppm into the aqueous amine solution, foaming is considerably suppressed and cleaning efficiency accelerated. Further, if the aqueous amine solution is treated with active carbon before or after the addition of the antifoaming agent, the antifoaming efficiency becomes much higher.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7374979A JPS55165109A (en) | 1979-06-12 | 1979-06-12 | Antifoaming method of amine solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7374979A JPS55165109A (en) | 1979-06-12 | 1979-06-12 | Antifoaming method of amine solution |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55165109A true JPS55165109A (en) | 1980-12-23 |
JPS6247044B2 JPS6247044B2 (en) | 1987-10-06 |
Family
ID=13527199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7374979A Granted JPS55165109A (en) | 1979-06-12 | 1979-06-12 | Antifoaming method of amine solution |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55165109A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60139315A (en) * | 1983-12-27 | 1985-07-24 | Nippon Mining Co Ltd | Removal of suspended substance in hydrogen sulfide recovery process |
EP0674936A2 (en) * | 1994-03-30 | 1995-10-04 | Dow Corning Corporation | A method for using aminofunctional silicon compounds for selective separation of gases |
WO2013028391A1 (en) * | 2011-08-25 | 2013-02-28 | General Electric Company | Compositions for absorbing carbon dioxide, and related processes and systems |
-
1979
- 1979-06-12 JP JP7374979A patent/JPS55165109A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60139315A (en) * | 1983-12-27 | 1985-07-24 | Nippon Mining Co Ltd | Removal of suspended substance in hydrogen sulfide recovery process |
JPS6141604B2 (en) * | 1983-12-27 | 1986-09-16 | Nippon Mining Co | |
EP0674936A2 (en) * | 1994-03-30 | 1995-10-04 | Dow Corning Corporation | A method for using aminofunctional silicon compounds for selective separation of gases |
EP0674936A3 (en) * | 1994-03-30 | 1996-02-07 | Dow Corning | A method for using aminofunctional silicon compounds for selective separation of gases. |
WO2013028391A1 (en) * | 2011-08-25 | 2013-02-28 | General Electric Company | Compositions for absorbing carbon dioxide, and related processes and systems |
CN103764258A (en) * | 2011-08-25 | 2014-04-30 | 通用电气公司 | Compositions for absorbing carbon dioxide, and related processes and systems |
Also Published As
Publication number | Publication date |
---|---|
JPS6247044B2 (en) | 1987-10-06 |
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