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:
Mar. 12, 2024
Filed:
Oct. 16, 2023
China Petroleum & Chemical Corporation, Beijing, CN;
China Petroleum & Chemical Co., Ltd. of North Branch, Zhengzhou, CN;
Xiaoqing Qiu, Zhengzhou, CN;
Xiang Wang, Zhengzhou, CN;
Guisheng Wang, Zhengzhou, CN;
Guofeng Li, Zhengzhou, CN;
Jiawei Zhang, Zhengzhou, CN;
Lei Song, Zhengzhou, CN;
Xia Wang, Zhengzhou, CN;
Qianli Xu, Zhengzhou, CN;
Puyan Hou, Zhengzhou, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CO., LTD. OF NORTH BRANCH, Zhengzhou, CN;
Abstract
The invention discloses a biological desulfurizer for removing organic sulfur in fracturing flowback fluid and application thereof. The biological desulfurizer includes a compound with a triazine structure formed by modifying chitosan with aldehydes and inorganic salts. The triazine structure has a good removal effect on hydrogen sulfide and organic sulfur such as mercaptan and sulfide. The biological desulfurizer of the invention has a sulfur capacity of up to 250 g/kg and a desulfurization efficiency of over 95% in 15 min. It can effectively remove the stink of sulfur-containing working water, improve the working environment of the well site, and reduce the impact of sulfur compounds on the atmospheric environment during the development of oil and gas fields.