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《Petroleum Processing and Petrochemicals》 2009-06
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STUDY ON THE ATMOSPHERIC AROMATIZATION OF BACK WASHING LIQUID FROM AROMATICS EXTRACTION

Yao Lei1,Wu Weizhong1,Zhou Mingqiu2,Qiu Zhaorong1(1.Department of Chemical Engineering Jiangsu Polytechnic University,Fine Chemical Technology Key Laboratory of Jiangsu,Changzhou 213016;2.Aromatics Plant of Yangzi Petrochemical Company)  
Using the back washing liquid from the aromatics extraction unit of Yangzi Petrochemical Company as feedstock and modified ZSM-5 zeolite as catalyst,the atmospheric aromatization experiments were carried out in a 200mL gas-solid catalytic reaction device.The effects of reaction temperature and VHSV on the aromatization reaction,catalyst stability and the regeneration of catalyst were studied.Results showed that the best aromatization results were obtained under the optimal reaction conditions of atmospheric pressure,a reaction temperature of 450℃ and a VHSV of 4.0h-1,and the catalyst life of once-through was about 12h.In addition,multiple times regeneration had minor effect on the catalytic performance of modified ZSM-5 zeolite catalyst.By atmospheric aromatization the contents of cyclanes and alkenes in the back washing liquid decreased and the content of target product(aromatics)increased significantly.
【CateGory Index】: TE624.4
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【Citations】
Chinese Journal Full-text Database 2 Hits
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【Co-citations】
Chinese Journal Full-text Database 9 Hits
1 Li Zhunhong;Su Jian;Lin Xianyu;Sichuan Petrochemical Company, Production Department 3;;The Analysis of the Impact Factors That Affecting Benzene Content in the Raffinate Oil of Aromatics Extractive Distillation Unit[J];广东化工;2016-05
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