Invention Grant
- Patent Title: Method for processing Fischer-Tropsch off-gas
- Patent Title (中): 费 - 托废气处理方法
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Application No.: US14758452Application Date: 2013-12-31
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Publication No.: US09539534B2Publication Date: 2017-01-10
- Inventor: Sivakumar Sadasivan Vijayakumari
- Applicant: SHELL OIL COMPANY
- Applicant Address: US TX Houston
- Assignee: SHELL OIL COMPANY
- Current Assignee: SHELL OIL COMPANY
- Current Assignee Address: US TX Houston
- Priority: EP12199830 20121231
- International Application: PCT/EP2013/078171 WO 20131231
- International Announcement: WO2014/102393 WO 20140703
- Main IPC: B01D53/047
- IPC: B01D53/047 ; C01B3/56 ; C01B31/20 ; C01B31/18 ; C10K1/32 ; C10G2/00 ; B01J20/08 ; B01J20/18 ; B01J20/20 ; B01J20/10

Abstract:
This invention concerns a method for recovering carbon monoxide and carbon dioxide from Fischer-Tropsch off-gas by feeding Fischer-Tropsch off-gas through a column comprising an adsorbent bed, and discharging effluent, optionally rinsing the column and the adsorbent bed by feeding NG and discharging effluent until at least 60% of the carbon monoxide that was present in the bed is discharged, pressurizing the column and adsorbent bed with NG, rinsing the column and the adsorbent bed by feeding NG until at least 50% of the carbon dioxide present at the commencement of this rinsing step is discharged, rinsing the column and adsorbent bed by feeding a mixture of hydrogen and nitrogen, pressurizing the column and adsorbent bed by feeding a mixture of hydrogen and nitrogen. With this method a feed comprising at least 50 vol % carbon monoxide can be produced. Furthermore, methane and carbon dioxide at a high pressure can be recovered from the Fischer-Tropsch gas. This can be fed to a gasifier or a reformer. In a preferred embodiment a gas comprising at least 80 vol % hydrogen is produced as well.
Public/Granted literature
- US20150336043A1 METHOD FOR PROCESSING FISCHER-TROPSCH OFF-GAS Public/Granted day:2015-11-26
Information query
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