“碳捕手”帮二氧化碳悄悄搬家（唠“科”）

Core Viewpoint - The recent progress in China's first offshore carbon dioxide (CO2) storage demonstration project indicates the maturity of the country's offshore CO2 storage technology, equipment, and engineering capabilities [1] Group 1: CCUS Technology Overview - Carbon Capture, Utilization, and Storage (CCUS) is a technological approach that allows fossil fuels to be considered "zero-carbon" energy sources by capturing CO2 emissions from sources like power plants and vehicles [1] - The CCUS process consists of three main steps: capturing CO2 from emissions, utilizing it in various applications, and finally storing it safely underground [2] Group 2: Steps of CCUS - Capture: Various technologies are employed to extract CO2 from high-temperature waste gases in industries such as power generation and cement production, using methods like chemical absorption, membrane separation, and cryogenic condensation [2] - Utilization: CO2 can be transformed from waste into valuable resources, such as enhancing oil recovery, producing fertilizers, methanol, synthetic fuels, and even carbonated beverages [2] - Storage: CO2 is compressed into a high-density fluid and injected into stable geological formations, such as saline aquifers or depleted oil and gas reservoirs, where it can be securely stored for hundreds to thousands of years [2] Group 3: Current Status and Future Prospects - Globally, CCUS is transitioning from experimental technology to commercial application, with over 20 CCUS demonstration projects operational in China across various industries, enhancing overall storage capacity [3] - China's first offshore CCUS project is expected to inject over 1 million tons of CO2 in the next decade while increasing oil production by 200,000 tons [3] - Despite challenges such as high costs and inadequate infrastructure, the future of CCUS remains promising, particularly in hard-to-decarbonize sectors like steel, cement, and chemicals, contributing to global climate goals [3]