烟气CO2捕集工艺过程关键问题分析

CO2的减排越来越受到国际社会的关注，应用于火电厂的烟气CO2捕集技术是实现大规模降低火电厂CO2排放的主要手段之一，而捕集工艺是CO2捕集技术的基础。从工艺设计角度出发，简述了胺基吸收法的烟气预处理与捕集吸收工艺，分析了精脱硫、烟气冷却、吸收速率、电厂适应性、运行控制及节能工艺等因素对CO2捕集系统性能的影响，为火电厂烟气CO2大规模捕集的了工艺设计提供参考。

Study on Some Key Issues in the Process of Carbon Dioxide Capture Technology for Flue Gas

The earbon dioxide emission reduction is drawing increasing concerns globally. Particularly, the CO2 capture technology applied in coal-fired power plants is one of the main methnds to reduce CO2 emissions from power plants on a large scale and the capture process is the basis of the technology. From the aspect of prncess design, the flue gas pretreatment and absorption proeesses of amine-based absorption are introduced, anti the impaets of fnrther desulfurization, flue gas cooling, absorption rate, plant adaptability, operational control and energy-saving technologies on CO2, capture are analyzed, which can provide reference for large-scale CO2 capture system design.