Jin Rong Jie·2025-12-01 12:17Group 1 - China Petroleum & Chemical Corporation (Sinopec) has obtained a patent for a system utilizing a mixed gas containing ethylene and propylene, aimed at enhancing the recovery of refinery dry gas [1] - The patent, with authorization announcement number CN223587103U, was applied for on December 2024 and focuses on a system that includes a gas source, membrane separator, mixers, reactors, and separation devices [1] - The system is designed to directly utilize mixed gas to produce high-value-added products such as ethylene glycol and propylene glycol [1] Group 2 - Sinopec was established in 2000 and is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [2] - The company has made investments in 268 enterprises and participated in 5000 bidding projects, holding 5000 patent records and 45 trademark records [2] - Sinopec Shanghai Engineering Company, founded in 1993, has a registered capital of 500 million RMB and has invested in 11 enterprises, also participating in 5000 bidding projects with 848 patent records [2]