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[1]魏思雨,韩 瑞,苏彦麟,等.介孔骨架包裹纳米碳酸钙循环吸收CO2性能研究[J].燃烧科学与技术,2018,(02):132-138.[doi:10.11715/rskxjs.R201705030]
 Wei Siyu,Han Rui,Su Yanlin,et al.CO2 Sorption Enhancement of Nano Calcium Carbonate Wrapped with the Mesoporous Skeleton[J].Journal of Combustion Science and Technology,2018,(02):132-138.[doi:10.11715/rskxjs.R201705030]
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介孔骨架包裹纳米碳酸钙循环吸收CO2性能研究()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2018年02
页码:
132-138
栏目:
出版日期:
2018-04-15

文章信息/Info

Title:
CO2 Sorption Enhancement of Nano Calcium Carbonate Wrapped with the Mesoporous Skeleton
文章编号:
1006-8740(2018)02-0132-07
作者:
魏思雨韩 瑞苏彦麟高继慧
哈尔滨工业大学能源科学与工程学院,哈尔滨 150001
Author(s):
Wei SiyuHan RuiSu YanlinGao Jihui
School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China
关键词:
溶胶凝胶介孔骨架钙基吸收剂CO2吸收
Keywords:
sol-gelmesoporous skeletoncalcium-based sorbentCO2 capture
分类号:
X511
DOI:
10.11715/rskxjs.R201705030
文献标志码:
A
摘要:
采用溶胶凝胶法制备了介孔二氧化硅骨架包裹纳米碳酸钙吸收剂,利用TGA 研究其循环煅烧/碳酸化的反应性能.结果表明复合吸收剂的首次及第15 次循环吸收量分别为13.4,mol/kg 和6.1,mol/kg,相比于未处理的纳米碳酸钙吸收量分别提高了32%,和41%,.硅源TEOS(正硅酸乙酯)添加量对吸收剂的活性影响较小,添加TMB(三甲基苯)导致多孔骨架的孔径变小,复合吸收剂活性随之下降.多个纳米核心包覆于介孔骨架中,介孔减小气体传质阻力,惰性骨架抑制核心聚集烧结,可从微米尺度保障吸收剂的活性.
Abstract:
The nano calcium carbonate sorbent wrapped with the mesoporous SiO2 skeleton for CO2 capture performance was prepared by sol-gel method and the sorbent performance in cyclic calcination/carbonation was studied by TGA.The uptake of CO2 in the first and the 15th cycle of composite sorbent was 13.4,mol/kg and 6.1,mol/kg,increased by 32%, and 41%,respectively,compared with untreated nano calcium carbonate.The average pore size of porous skeleton decreased with the addition of TMB and the capacity of the sorbent then decreased. A number of nano CaCO3 are coated in the SiO2 framework,where mesopores allow the transfer of reactant gas into fresh sorbent particles.The skeleton also inhibits the agglomeration of the nano CaCO3 because of sintering and improves the activity of the sorbent.

备注/Memo

备注/Memo:
收稿日期:2017-05-19. 基金项目:国家自然科学基金资助项目(51276052). 作者简介:魏思雨(1993— ),女,博士研究生,2437965696@qq.com. 通讯作者:高继慧,男,博士,教授,gaojh@hit.edu.cn.
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