中国电机工程学报Issue(11)：1741-1747,7.DOI:10.13334/j.0258-8013.pcsee.2014.11.004
硼酸盐活化效应对碳酸钾溶液吸收CO2的影响
Effect of Borate Catalysis on CO2 Absorption by Potassium Carbonate Solutions
郭东方 1郜时旺 1蔡铭 1陈健 2费维扬2
作者信息
- 1. 中国华能集团清洁能源技术研究院有限公司，北京市 昌平区 102209
- 2. 清华大学化学工程系，北京市 海淀区 100084
- 折叠
摘要
Abstract
Promoted potassium carbonate solutions have the potential for large-scale CO2 capture from coal-based power stations. In this paper, the borate-catalyzed CO2 hydration and its effect on potassium carbonate solutions using stopped-flow pH indicator technique and wetted-wall column method was presented. The results show that borate can catalyze the conversion of CO2 into HCO3- via the same fundamental mechanism as the enzyme carbonic anhydrase, and the addition of borate into potassium carbonate solution increases CO2 absorption rate and enhancement factor. Under the condition of liquid-film controlled processes and ion strength effect Considered, the proposed borate catalysis can be used to predict CO2 absorption of borate promoted potassium carbonate solutions well, and will be very useful for separation processes design and operation parameters optimization.关键词
CO2捕集/碳酸钾/硼酸盐/湿壁柱/停流光谱-pH指示剂技术Key words
CO2 capture/potassium carbonate/borate/wetted-wall column/stopped-flow pH indicator technique分类
化学化工引用本文复制引用
郭东方,郜时旺,蔡铭,陈健,费维扬..硼酸盐活化效应对碳酸钾溶液吸收CO2的影响[J].中国电机工程学报,2014,(11):1741-1747,7.
