The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 2019
Filed:
Nov. 04, 2015
Nan Yang, Zibo, Shandong, CN;
Nan Yang, Shandong, CN;
Yanwei Yang, Shandong, CN;
Xianxian Zhang, Shandong, CN;
Rui An, Shandong, CN;
Chunhui Hao, Shandong, CN;
Yingkui Zhang, Shandong, CN;
Shu Sun, Shandong, CN;
Hui Liu, Shandong, CN;
Jialin Liu, Shandong, CN;
Xiuqing Xie, Shandong, CN;
Aimei Wang, Shandong, CN;
Yin Zhu, Shandong, CN;
Other;
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.