INTERNATIONAL PATENT: CHINA PETROLEUM ENGINEERING & CONSTRUCTION CORPORATION, 中国石油工程建设有限公司, CHINA NATIONAL PETROLEUM CORPORATION, 中国石油天然气集团有限公司 FILES APPLICATION FOR "PROCESS SYSTEM AND PROCESS METHOD FOR TREATING HYDROGEN SULFIDE-CONTAINING ACID GAS"

GENEVA, May 16 -- CHINA PETROLEUM ENGINEERING & CONSTRUCTION CORPORATION (No.28, Gulouwai AvenueDongcheng District, Beijing 100120), 中国石油工程建设有限公司 (中国北京市东城区鼓楼外大街28号), CHINA NATIONAL PETROLEUM CORPORATION (9 Dongzhimen North StreetDongcheng District, Beijing 100007), 中国石油天然气集团有限公司 (中国北京市东城区东直门北大街9号) filed a patent application (PCT/CN2023/142659) for "PROCESS SYSTEM AND PR...