Modulated hydrocarbon distribution of gasoline deriving from butene conversion in the presence of syngas  

作　　者：Yi Ding Feng Jiao Xiulian Pan Xinhe Bao 

机构地区：[1]Department of Chemical Physics,University of Science and Technology of China,Hefei 230026,Anhui,China [2]State Key Laboratory of Catalysis,Dalian National Laboratory for Clean Energy,2011-Collaborative Innovation Center of Chemistry for Energy Materials,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,Liaoning,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Energy Chemistry》2022年第10期416-421,I0010,共7页能源化学（英文版）

基　　金：supported by the Ministry of Science and Technology of China (2018YFA0704503);the National Natural Science Foundation of China (Grant Nos. 22002153, 91945302);the Youth Innovation Promotion Association of Chinese Academy of Sciences (2019184);the Natural Science Foundation of Liaoning (2020-BS019);Dalian Science and Technology Innovation Fund (2020JJ26GX028)。

摘　　要：With the expansion of butene production capacity,clean and efficient conversion of mixed butene attracts increasing attention.Herein we report direct co-conversion of butene and syngas to highquality gasoline enabled by a bifunctional OXZEO catalyst comprising ZnCrO_(x) oxide and ZSM-5 zeolite.A gasoline selectivity of 71.6% at 98.1% butene conversion and 26.2% CO conversion have been obtained under the reaction conditions of 360℃,3 MPa and 3000 mL g^(-1) h^(-1).The space time yield of gasoline of0.25 g·g^(-1) h^(-1) is achieved.Interestingly,the presence of syngas can effectively facilitate iso-paraffin production while hindering the formation of aromatics.This is attributed to the prohibited hydrogen transfer aromatization process of butene on ZSM-5 in the presence of H2.Fu rthermore,the formation of isomers of gasoline range hydrocarbons is favored because the active intermediates generated from CO/H_(2) activation over ZnCrO_(x) oxide could react with butene over ZSM-5 zeolite.Thus,the product distribution among gasoline range hydrocarbons is modulated with reduced heavy aromatics and improved iso-paraffins,which is desirable for application as fuels.This provides an alternative environmentally friendly technology to utilize still increasing mixed butene.

关 键 词：Butene utilization Bifunctional catalysts OXZEO Syngas conversion GASOLINE 

分 类 号：TE626.21[石油与天然气工程—油气加工工程]