化工学报2016，Vol.67Issue(6)：2440-2448,9.DOI:10.11949/j.issn.0438-1157.20151729
强化结晶氨法脱碳实验研究
Carbon capture by ammonia with reinforced crystallization
摘要
Abstract
In response of problems such as ammonia escape, high regenerated energy and low absorbed rate in the late stage, which exist in the research of carbon capture by ammonia now, this paper presents a novel process of carbon capture by ammonia with reinforced crystallization, using a new type of aqueous ammonia-ethanol mixing absorbent. The effect of absorption and crystalline regularity under different absorbent ingredients, different absorption temperatures, different flue gas flow, and different CO2 volume fraction is studied using a semi-continuous bubbling reaction system. The experimental results show that mixing absorbent with relatively high ratio of ethanol, relatively low absorption temperature, and higher gas flow and larger volume fraction of CO2 will be favorable for strengthening of process, including that the appearing time of crystals in the absorbent could bring forward and the ratio of ammonia account in the crystals to the initial total ammonia could be up to 38.75% as well as the CO2 absorption capacity was improved significantly compared to pure aqueous ammonia. Novel ideas presented in this paper could be that a carbon capture process by ammonia with reinforced crystallization is suggested, and better conditions were given for improving absorption and reducing consumption of desorption energy. All basic data and results provided by this paper could be useful for further study of this new process.关键词
混合吸收液/吸收能力/再生/结晶/鼓泡反应器Key words
mixing absorbent/absorption capacity/regeneration/crystallization/bubbling reactor分类
能源科技引用本文复制引用
冷浩,高建民,张宇,刘奇,冯冬冬,杜谦,吴少华..强化结晶氨法脱碳实验研究[J].化工学报,2016,67(6):2440-2448,9.基金项目
面向中美先进煤炭技术合作的新一代煤转化与发电技术（国际科技合作项目）（2010DFA24580-502）。 （）
