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Highly selective ethylbenzene production through alkylation of dilute ethylene with gas phase-liquid phase benzene and transalkylation feed
Liu, Shenglin1; Chen, Fucun1; Xie, Sujuan1; Zeng, Peng2; Due, Xiyan2; Xu, Longya1; Xu LY(徐龙伢)
KeywordDilute Ethylene Gas Phase-liquid Phase Benzene Alkylation Ethylbenzene
Source PublicationJOURNAL OF NATURAL GAS CHEMISTRY
2009-03-01
ISSN1003-9953
DOI10.1016/S1003-9953(08)60071-7
Volume18Issue:1Pages:21-24
Indexed BySCI
SubtypeArticle
Department8
Funding Project804
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
AbstractA novel industrial process was designed for the highly selective production of ethylbenzene. It comprised of a reactor vessel, vapor phase ethylene feed stream, benzene and transalkylation feed stream. Especially the product stream containing ethylbenzene was used to heat the reactor vessel, which consisted of an alkylation section, an upper heat exchange section, and a bottom heat exchange section. In such a novel reactor, vapor phase benzene and liquid phase benzene were coexisted due to the heat produced by isothermal reaction between the upper heat exchange section and the bottom heat exchange section. The process was demonstrated by the thermodynamic analysis and experimental results. In fact, during the 1010 hour-life-test of gas phase ethene with gas phase-liquid phase benzene alkylation reaction, the. ethene conversion was above 95%, and the ethylbenzene selectivity was above 83% (only benzene feed) and even higher than 99% (benzene plus transalkylation feed). At the same time, the xylene content in the ethylbenzene was less than 100 ppm when the reaction was carried out under the reaction conditions of 140-185 degrees C of temperature, 1.6-2.1 MPa of pressure, 3.0-5.5 of benzene/ethylene mole ratio, 4-6 v% of transalkylation feed/(benzene+transalkylation feed), 0.19-0.27 h(-1) of ethene space velocity, and 1000 g of 3998 catalyst loaded. Thus.. compared with the conventional ethylbenzene synthesis route, the transalkylation reactor could be omitted in this novel industrial process.
Language英语
URL查看原文
WOS IDWOS:000265250700004
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/101625
Collection中国科学院大连化学物理研究所
Corresponding AuthorXu LY(徐龙伢)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Fushun Co, China Petr Engn Co Ltd, Fushun 113006, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Liu, Shenglin,Chen, Fucun,Xie, Sujuan,et al. Highly selective ethylbenzene production through alkylation of dilute ethylene with gas phase-liquid phase benzene and transalkylation feed[J]. JOURNAL OF NATURAL GAS CHEMISTRY,2009,18(1):21-24.
APA Liu, Shenglin.,Chen, Fucun.,Xie, Sujuan.,Zeng, Peng.,Due, Xiyan.,...&徐龙伢.(2009).Highly selective ethylbenzene production through alkylation of dilute ethylene with gas phase-liquid phase benzene and transalkylation feed.JOURNAL OF NATURAL GAS CHEMISTRY,18(1),21-24.
MLA Liu, Shenglin,et al."Highly selective ethylbenzene production through alkylation of dilute ethylene with gas phase-liquid phase benzene and transalkylation feed".JOURNAL OF NATURAL GAS CHEMISTRY 18.1(2009):21-24.
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