据了解，2024年全国海水冷却与海水淡化为沿海钢铁、石化、电力（核电）等高耗水行业提供了稳定的 水源。以舟山绿色石化基地为例，2024年该基地海水淡化工程产水1.4亿吨，支撑其石化产业实现工业 总产值2726.4亿元，为区域经济发展作出了重要贡献。（记者王立彬） 2024年，我国冷却用了1883亿吨海水，为沿海钢铁石化等行业提供了稳定水源。 根据国家海洋信息中心、中国海洋发展研究会9月编制的《2025中国海洋发展指数报告》，2024年我国 海水冷却用水量达1883亿吨，比上年增长1.6%，有效保障了沿海电力、石化、钢铁等行业的冷却用水 需求。 ...

Core Insights - The 2024 National Sea Water Utilization Report indicates a significant increase in seawater desalination projects and capacity across China, with a total of 158 projects and a capacity of 2.856 million tons per day, an increase of 333,000 tons per day from 2023 [1] Group 1: Desalination Projects - In 2024, there are 61 large-scale seawater desalination projects with a capacity of 2.63 million tons per day, 48 medium-scale projects with a capacity of 200,000 tons per day, and 49 small-scale projects with a capacity of 14,000 tons per day [1] - Major coastal provinces such as Tianjin, Hebei, Shandong, and Zhejiang have significant desalination capacities, with Tianjin at 450,000 tons per day and Shandong at 860,000 tons per day [1] Group 2: Industrial Water Use - Seawater desalination primarily serves industrial water needs, especially in high-water-consumption industries like power generation, petrochemicals, and steel, with some use for domestic water in coastal cities and islands [2] - Large-scale projects like the Tianjin South Port Industrial Zone and the Yantai Longkou Yulong Island desalination project are set to provide crucial water resources for industrial development [2] Group 3: Cooling Water and Chemical Resource Utilization - In 2024, seawater cooling water usage is projected to reach 188.336 billion tons, an increase of 2.957 billion tons from 2023, with significant usage in coastal thermal and nuclear power plants [3] - The report highlights ongoing research and development in seawater resource utilization, including bromine and potassium extraction technologies, particularly in provinces like Tianjin and Shandong [3]