摘要
利用鼓泡吸收和解吸实验装置研究TiO_(2)和SiO_(2)纳米颗粒对质量分数为30%的单乙醇胺(monoethanolamine,MEA)溶液CO_(2)吸收-解吸性能的影响。结果表明,质量分数为0.10%的TiO_(2)-MEA吸收剂的吸收增强因子最佳,可以达到1.095。吸收前后纳米颗粒的粒径分布和Zeta电位基本保持不变,具有较好的稳定性。在解吸过程中,相较质量分数为30%的MEA吸收剂,质量分数为0.10%的TiO_(2)-MEA和质量分数为0.10%的SiO_(2)-MEA吸收剂相对热损耗分别降低7.1%和7.0%,解吸容量分别提升7.69%和7.53%。此外,纳米颗粒对其他有机胺吸收剂也具有一定作用,在解吸过程中,显著提高有机胺吸收剂解吸速率的峰值,缩短达到解吸速率峰值的时间,提高解吸效率。
A bubbling absorption and desorption experimental device was used to study the effect of TiO_(2) and SiO_(2) nanoparticles on the CO_(2) absorption and desorption performance of MEA(monoethanolamine)absorbent with mass quality fraction of 30%.The results show that TiO_(2)-MEA absorbent with mass fraction of 0.10% has the best absorption enhancement factor,which can reach 1.095.The particle size distribution and Zeta potential of the nanoparticles remain basically unchanged before and after absorption,indicating good stability.During the desorption process,compared with MEA absorbent with mass fraction of 30%,the relative heat duty of TiO_(2)-MEA and SiO_(2)-MEA absorbent both with mass fraction of 0.10%was reduced by 7.1% and 7.0%respectively,and the desorption capacity was increased by 7.69% and 7.53% respectively.In addition,nanoparticles also have a certain effect on other amine absorbents.During the desorption process,it significantly increases the peak value of the desorption rate of amine absorbent,shortens the time to reach the peak value of the desorption rate,and improves the desorption efficiency.
作者
李倬毅
孟骏
郭姜敏
杨晓冬
马钢
刘少俊
郑成航
LI Zhuoyi;MENG Jun;GUO Jiangmin;YANG Xiaodong;MA Gang;LIU Shaojun;ZHENG Chenghang(Polytechnic Institute,Zhejiang University,Hangzhou 310015,China;State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China;CNPC Electric Energy Company,Daqing 163453,China)
出处
《柴油机》
2024年第5期8-16,共9页
Diesel Engine
基金
国家重点研发计划项目(2022YFE0208900)。
