- Patent Title: Catalyst for selectively catalytically oxidizing hydrogen sulfide, catalyst for burning tail-gas, and process for deeply catalytically oxidizing hydrogen sulfide to element sulfur
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Application No.: US15525052Application Date: 2015-11-04
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Publication No.: US10166531B2Publication Date: 2019-01-01
- Inventor: Nan Yang , Yanwei Yang , Xianxian Zhang , Rui An , Chunhui Hao , Yingkui Zhang , Shu Sun , Hui Liu , Jialin Liu , Xiuqing Xie , Aimei Wang , Yin Zhu
- Applicant: Nan Yang
- Applicant Address: CN Zibo, Shandong
- Assignee: Nan Yang
- Current Assignee: Nan Yang
- Current Assignee Address: CN Zibo, Shandong
- Priority: CN2014106178633 20141105
- International Application: PCT/CN2015/093756 WO 20151104
- International Announcement: WO2016/070805 WO 20160512
- Main IPC: C01B17/04
- IPC: C01B17/04 ; B01D53/86 ; B01J21/06 ; B01J23/745 ; B01J23/847 ; B01J35/00 ; B01J8/04 ; C10K1/00 ; C10K1/34
Abstract:
A catalyst for selectively oxidizing hydrogen sulfide to element sulfur, catalyst for burning tail-gas, and process for deeply catalytically oxidizing hydrogen sulfide to sulfur are disclosed. The catalyst for selectively oxidizing hydrogen sulfide to element sulfur is prepared by: 10-34% of iron trioxide and 60-84% of anatase titanium dioxide, and the balance being are auxiliary agents. Also a catalyst for burning tail-gas is prepared by: 48-78% of iron trioxide and 18-48% of anatase titanium dioxide, and the balance being auxiliary agents. The catalyst of the present invention has high selectivity and high sulfur recovery rate. An isothermal reactor and an adiabatic reactor of the present invention are connected in series and are filled with the above two catalysts for reactions, thus reducing total sulfur in the vented gas while having a high sulfur yield and conversion rate.
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