Invention Grant
US07655205B2 Process for the removal of SO2, HCN and H2S and Optionally COS, CS2 and NH3 from a gas stream
失效
从气流中除去SO 2，HCN和H 2 S以及任选的COS，CS 2和NH 3的方法
- Patent Title: Process for the removal of SO2, HCN and H2S and Optionally COS, CS2 and NH3 from a gas stream
- Patent Title (中): 从气流中除去SO 2，HCN和H 2 S以及任选的COS，CS 2和NH 3的方法
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Application No.: US10558448Application Date: 2004-05-28
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Publication No.: US07655205B2Publication Date: 2010-02-02
- Inventor: Petrus Franciscus Antonius Van Grinsven , Wiebe Sjoerd Kijlstra , Inge Roos , Cornelis Jacobus Smit
- Applicant: Petrus Franciscus Antonius Van Grinsven , Wiebe Sjoerd Kijlstra , Inge Roos , Cornelis Jacobus Smit
- Applicant Address: US TX Houston
- Assignee: Shell Oil Company
- Current Assignee: Shell Oil Company
- Current Assignee Address: US TX Houston
- Agent Charles W. Stewart
- Priority: EP03253365 20030529
- International Application: PCT/EP2004/050955 WO 20040528
- International Announcement: WO2004/105922 WO 20041209
- Main IPC: B01D53/48
- IPC: B01D53/48 ; B01D53/58
Abstract:
Disclosed is a process for the removal of sulfur from a gas stream containing sulfur dioxide, hydrogen cyanide and hydrogen sulfide. The process includes a hydrogenation step, a hydrolysis step, an ammonia removal step and a hydrogen sulfide removal step. An aqueous alkaline washing liquid is used in the hydrogen sulfide removal step and with the spent sulfide containing washing liquid being regenerated using an oxidation bioreactor that utilizes sulfide oxidizing bacteria such as autotropic aerobic cultures of Thiobacillus and Thiomicrospira.
Public/Granted literature
- US20060272502A1 Process for the removal of s02, hcn and h2s and optionally cos, cs2 and nh3 from a gas stream Public/Granted day:2006-12-07
Information query
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