Application of Modified Attapulgite Clay as the Adsorbent in Gasoline Desulfurization  

作　　者：Xi Xinguo Zhang Jiling Jiang Ruiyu Xu Qi 

机构地区：[1]School of Materials Engineering,Yancheng Institute of Technology [2]East-China Design Branch,China Petroleum Engineering Construction Company [3]Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province,Yancheng Institute of Technology [4]School of Chemical and Biological Engineering,Yancheng Institute of Technology

出　　处：《China Petroleum Processing & Petrochemical Technology》2014年第3期63-68,共6页中国炼油与石油化工（英文版）

基　　金：supported financially by the National Natural Science Foundation of China (21306162);the National 973 Project of China (2010CB226903);the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (14KJB430023);the Union Innovation Funds-Prospective Joint Research Project of Jiangsu Province (BY2012152)

摘　　要：Attapulgite clay is a kind of special silicate mineral with high adsorption capacity thanks to its loose structure and porous surface. In this paper, the attapulgite clay was treated effectively with acid under microwave thermal activation and ultrasonic vibration, respectively, and characterized by XRD, N2 adsorption, FT-IR and SEM. The desulfurization performance of the modified attapulgite clay was then evaluated by using simulated gasoline as the feed. The test results showed that the thiophene removal rate increased with an increasing dosage of hydrochloric acid during microwave modification of attapulgite clay. When the concentration of hydrochloric acid reached 15%, the increase of desulfurization rate became slower, and the desulfurization rate was about 69%.Attapulgite clay is a kind of special silicate mineral with high adsorption capacity thanks to its loose structure andporous surface. In this paper, the attapulgite clay was treated effectively with acid under microwave thermal activation andultrasonic vibration, respectively, and characterized by XRD, N2 adsorption, FT-IR and SEM. The desulfurization performanceof the modified attapulgite clay was then evaluated by using simulated gasoline as the feed. The test results showedthat the thiophene removal rate increased with an increasing dosage of hydrochloric acid during microwave modificationof attapulgite clay. When the concentration of hydrochloric acid reached 15%, the increase of desulfurization rate becameslower, and the desulfurization rate was about 69%.

关 键 词：attapulgite clay MODIFICATION ADSORPTION DESULFURIZATION 

分 类 号：TE624.55[石油与天然气工程—油气加工工程] TQ424[化学工程]