Invention Grant
- Patent Title: Method of deacidizing a gas with a fractional regeneration absorbent solution with control of the water content of the solution
- Patent Title (中): 使用分级再生吸收剂溶液使气体脱酸的方法，控制溶液的含水量
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Application No.: US12158346Application Date: 2006-12-19
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Publication No.: US08206489B2Publication Date: 2012-06-26
- Inventor: Renaud Cadours , Pierre-Louis Carrette , Pierre Boucot
- Applicant: Renaud Cadours , Pierre-Louis Carrette , Pierre Boucot
- Applicant Address: FR Cedex
- Assignee: Institut Francais du Petrole
- Current Assignee: Institut Francais du Petrole
- Current Assignee Address: FR Cedex
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: FR0513178 20051222
- International Application: PCT/FR2006/002798 WO 20061219
- International Announcement: WO2007/077323 WO 20070712
- Main IPC: B01D53/14
- IPC: B01D53/14
Abstract:
The present invention relates to a method of deacidizing a gaseous effluent, wherein the following stages are carried out: a) contacting the gaseous effluent with an absorbent solution so as to obtain a gaseous effluent depleted in acid compounds and an absorbent solution laden with acid compounds, the absorbent solution being selected for its property to form two separable phases when it absorbs an amount of acid compounds, b) separating the absorbent solution laden with acid compounds into two fractions: a first absorbent solution fraction depleted in acid compounds and a second absorbent solution fraction enriched in acid compounds, c) regenerating the second fraction so as to release part of the acid compounds, d) mixing a predetermined amount of water with the first absorbent solution fraction obtained in stage b) or with the regenerated absorbent solution fraction obtained in stage c), then e) recycling the first absorbent solution fraction and the regenerated absorbent solution as the absorbent solution.
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