Zhong Guo Hua Gong Bao·2025-09-26 02:58Core Viewpoint - The collaboration between Dongfang Electric (Fujian) Innovation Research Institute and PetroChina Changqing Oilfield Research Institute marks a significant advancement in the field of hydrogen production from produced water in gas fields [1] Group 1: Project Overview - The project focuses on the research and demonstration of hydrogen production technology from produced water, addressing the complex composition and high treatment costs associated with over 3 million tons of produced water generated annually by Changqing Oilfield [1] - The collaboration aims to validate the stability and economic viability of the hydrogen production technology under scaled conditions, which is crucial for the integration of hydrogen energy with green and low-carbon development in oil and gas fields [1] Group 2: Technological Achievements - In May 2024, the research institute successfully expanded the seawater direct electrolysis hydrogen production technology to industrial wastewater, completing a field test in the Sulige gas field that operated stably for 330 hours [1] - The test achieved direct electrolysis of various types of produced water without purification, overcoming technical challenges and receiving certification from a third-party organization, establishing a leading position in the domestic market [1] Group 3: Future Implications - Successful implementation of the project will provide a key technological foundation for the integration of renewable energy consumption, wastewater utilization, and low-carbon transformation in China's oil and gas production areas [1]