化工学报2012，Vol.63Issue(8)：2592-2598,7.DOI:10.3969/j.issn.0438-1157.2012.08.035
TEPA/Q-1O固态胺的脱碳性能
Performance of solid amine TEPA/Q-10 for CO2 removal
摘要
Abstract
Low-cost solid amine TEPA/Q-10 was prepared by impregnating a cheap and disordered porous silica gel Q-10 in tetraethylenepentamine (TEPA) to investigate sorption and regeneration performance during multi-cycles for CO2 removal. Effects of temperature (50-70℃) and CO2 concentration on sorption performance as well as its thermal stabilization at various temperature were studied during 15 cycles. The experiment results indicate that sorption capacity of this sorbent can reach up to 2. 5 mmol ·(g sorbent)-1 and it is insensitive for change of temperature and CO2 concentration. TEPA/Q-10 shows perfect thermal stabilization at <100℃ , but its sorption capacity will decrease with increase of cycle times when regeneration temperature is above 100℃ , mainly due to the volatilization of TEPA in the sorbent instead of its structure change. Compared with traditional MEA method, energy consumption of solid amine decreases exponentially with increase of delta sorption capacity, and can be reduced by approximately 50% when delta sorption capacity is up to 2. 5 mmol · (g sorbent)-1. However, if it is above 3. 0 mmol · (g sorbent)-1 the energy consumption decreases only slightly with its increase.关键词
固态胺/四乙烯五胺/挥发/能耗Key words
solid amine/ TEPA/ volatilization/ energy consumption分类
化学化工引用本文复制引用
赵文瑛,王丽香,李振山,蔡宁生..TEPA/Q-1O固态胺的脱碳性能[J].化工学报,2012,63(8):2592-2598,7.基金项目
国家高技术研究发展计划项目(2011AA050601). （2011AA050601）
