有机胺功能化Al_2O_3吸附CO_2性能研究  

CO_2 Adsorption of Organic Amine-functionalized γ-Al_2O_3

作　　者：刘书群[1] 崔文龙[2] 朱元元 张雪 朱博文 刘理华[1] LIU Shuqun1,CUI Wenlong2,ZHU Yuanyuan1,ZHANG Xue1,ZHU Bowen1,LIU Lihua1(1.School of Chemistry and Materials Science,Huaibei Normal University,235000,Huaibei,Anhui,China;2.Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Advanced Catalysis and Green Manufacturing Collaborative Innovation Center,Changzhou University,213164,Changzhou,Jiangsu,Chin)

机构地区：[1]淮北师范大学化学与材料科学学院,安徽淮北235000 [2]常州大学江苏省绿色催化材料与技术重点实验室江苏省先进催化与绿色制造协同创新中心,江苏常州213164

出　　处：《淮北师范大学学报（自然科学版）》2018年第2期33-40,共8页Journal of Huaibei Normal University：Natural Sciences

基　　金：安徽省自然科学基金项目(1408085QB44);江苏省自然科学基金项目(BK20140260);安徽省高等学校自然科学研究项目(KJ2015A133;KJ2017B007);淮北市科技人才培育计划(20140316);重质油国家重点实验室开放基金(201602003)

摘　　要：采用浸渍法制备有机胺功能化Al_2O_3二氧化碳吸附剂,利用XRD、N_2吸附-脱附、FT-IR和热重分析等方法对样品进行表征,在固定床反应器中评价吸附剂对模拟烟道气的CO2动态吸附性能,结果表明,有机胺活性组分负载到Al_2O_3载体介孔孔道内,四乙烯五胺(负载量20%)Al2O3样品具有最高的穿透吸附活性68.3 mg/g,经20次吸附-脱附循环实验其吸附活性仅下降6.7%,因此该吸附剂在烟道气捕集CO_2具有较高的工业应用价值.A series of organic amine-functionalized γ-Al2O3 as CO2 adsorbent were prepared by wet impregna.tion method.The as-prepared adsorbents were characterized by XRD,nitrogen adsorption-desorption,FT-IRand thermogravimetric（TG）analyses.The dynamic adsorption of CO2 for organic amine-functionalized Al2O3was performed in a fixed-bed reactor using a simulated flue gas（15.1% CO2/84.9% N2）. It was confirmed that the amine was loaded on the surface of channels in the support.The tetraethylenepentamine-functional.ized（20%）Al2O3 sample exhibited the largest CO2 uptake（68.3 mg/g）at atmospheric pressure and showedstable adsorption- desorption behavior during 20 consecutive test cycles.These results suggest that the TE.PA-20 adsorbent is a promising adsorbent for CO2 capture form flue gas.

关 键 词：CO2吸附 穿透曲线 氧化铝 四乙烯五胺 

分 类 号：O647.3[理学—物理化学]