浸渍法制备的固态胺CO2吸附剂吸附性能

控制和减缓化石燃料电厂的CO₂排放对于缓解大气中CO₂浓度的持续上升具有重要意义。作为一种燃烧后CO₂ 捕集技术,固体CO₂吸附剂具有低能耗、弱腐蚀性、易再生等优点,在CO₂减排领域有着广泛的应用前景。介绍浸渍法制备的固态有机胺吸附剂对CO₂的吸附性能,着重介绍载体性质、有机胺负载量、温度和烟气含水量等因素对固态胺吸附剂吸附性能的影响,并对其机理进行了分析。此外,对比了不同固态胺吸附剂在75 ℃下对CO₂的吸附能力。分析认为,相对于其他类型的CO₂固体吸附剂,固态胺吸附剂较适用于从高温湿烟气中捕集CO₂。

Performance of Solid Adsorbents Impregnated with Amines for Carbon Dioxide Capture

Capturing CO₂ from fossil fuel power plants is of great importance in the alleviation of carbon dioxide concentration ever-increasing in the atmosphere. As a kind of post-combustion CO₂ capture technology, solid adsorbentsare characterized as low energy consumption, low corrosion and favorable regeneration, which make it is promising to be widely used for CO₂ capture in the future. In this paper, the adsorption performance of solid amine adsorbents on CO₂ capture prepared by impregnation is introduced with the impacts of some factors emphasized, such as the substrate nature, the amine loading amount, the adsorption temperature and the moisture in the flue gas. The principle of the adsorbents is also analyzed and the adsorption capability of different adsorbents at the temperature of 75 ℃ is compared. The analysis concludes that compared to other solid CO₂ adsorbents, solid amine adsorbents are more suitable for carbon dioxide capture in the flue gas at high temperatures.