低碳化学与化工2024，Vol.49Issue(7)：69-75,7.DOI:10.12434/j.issn.2097-2547.20240141
不同烟气CO2含量下近等温相变捕集工艺调节策略模拟分析
Simulation and analysis of regulation strategies for near isothermal phase change capture process under different CO2 content of flue gas
摘要
Abstract
The CO2 phase change capture process has low regeneration energy consumption,but in actual production,the CO2 content(mole fraction,the same below)in flue gas generated by the upstream process is unstable,which can lead to changes in the overall energy consumption of the process.Therefore,it is necessary to study the adjustment strategies of the process parameters under different CO2 content of flue gas.Using Python to invoke Aspen Plus to simulate the near isothermal CO2 capture technology,and the effects of adsorption tower temperature(ta),desorption tower temperature(td),liquid/gas ratio(v),amine concentration(c)and desorption liquid circulation ratio(s)on the regeneration energy consumption and CO2 capture rate and the corresponding regulation strategies were analyzed.The results show that td has the most significant effect on CO2 capture rate,and the correlation coefficient is the highest(74.78%)when the CO2 content is 5.00%.ta has the most significant impact on regeneration energy consumption,and when CO2 content is 20.00%,its correlation coefficient is the highest(-55.26%).With the CO2 content increases from 5.00%to 20.00%,the regeneration energy consumption decreases from 2.35 GJ/t to 2.13 GJ/t under the condition that the CO2 capture rate is greater than 90.00%.In addition,ta,td,c and v should be adjusted accordingly according to CO2 content to ensure that CO2 capture rate is greater than 90.00%and the regeneration energy consumption is lowest.关键词
CO2捕集工艺/过程模拟/CO2含量/热泵系统/参数调节Key words
CO2 capture process/process simulation/CO2 content/heat pump system/parameters adjustment分类
化学化工引用本文复制引用
常栋渊,唐思扬,钟山,鲁厚芳,梁斌..不同烟气CO2含量下近等温相变捕集工艺调节策略模拟分析[J].低碳化学与化工,2024,49(7):69-75,7.基金项目
四川省先进建筑材料产教融合创新示范平台(川材教[2022]106号). （川材教[2022]106号）
