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自由基和正碳离子结构方面的异同(英文) 被引量:1

Similarities and Differences Between the Structures of Free Radical and Carbenium Ion
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摘要 自由基机理和正碳离子机理是烃类分子发生裂化时的主要机理。通过量子化学密度泛函(DFT)的计算方法,研究了按这2种裂化机理进行的反应所得中间产物自由基和正碳离子的结构与特性,从而解释它们均易发生β断裂的原因,并对两者的反应条件进行了比较。 Free radical mechanism and the carbenium ion mechanism are the two main mechanisms of hydrocarbon molecules cracking.The structures of the reaction intermediates,free radical and carbenium ion,obtained according to the two cracking mechanisms were studied by density functional theory(DFT).The reasons that the β-scission reaction can easily occur in these two kinds of reaction mechanisms were researched.
出处 《石油学报(石油加工)》 EI CAS CSCD 北大核心 2011年第2期168-174,共7页 Acta Petrolei Sinica(Petroleum Processing Section)
关键词 自由基 正碳离子 β断裂 键离解能(BDE) 密度泛函(DFT) free radical carbenium ion β-scission bond dissociation energy(BDE) density functional theory(DFT)
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  • 1Xu Youhao,Wang Xieqing(Research Institute of Petroleum Processing, Beijing 100083).Study on Reaction Mechanism for Cracking FCC Gasoline on Acid Catalyst[J].China Petroleum Processing & Petrochemical Technology,2004,6(1):23-28. 被引量:7
  • 2吴越.催化化学[M].北京:科学出版社,2000.162-470. 被引量:21
  • 3Thomas C L.Chemistry of cracking catalysts[J].Ind Eng Chem,1949,41(11):2564-2573. 被引量:1
  • 4Greensfelder B S,Voge H H,Good G M.Catalytic and thermal cracking of pure hydrocarbons:Mechanisms of reaction[J].IndEngChem,1949,41(11):2573-2584. 被引量:1
  • 5Haag W O,Dessau R M.Duality of mechanism for acid-catalyzed paraffin cracking[A].Basel V C,Proceedings of the 8th International Congress on Catalysis[C].Frankfurt am Main:Dechema,1984.Ⅱ 305-Ⅱ 316. 被引量:1
  • 6Haag W O,Dessau R M,Lago R M.Kinetics and mechanism of paraffin cracking with zeolite catalysts[J].Stud Surf Sci Catal,1991,60(4):255-265. 被引量:1
  • 7Kotrel S,Knozinger H,Gates B C.The Haag-Dessau mechanism of protolytic cracking of alkanes[J].Microporus and Mesoporous Materials,2000,35-36:11-20. 被引量:1
  • 8Corma A,Orchilles A V.Current views on the mechanism of catalytic cracking[J].Microporus and Mesoporous Materials,2000,35-36:21-30. 被引量:1
  • 9华东石油学院炼油工程教研室.石油炼制工程[M].北京:石油工业出版社,1981. 被引量:1
  • 10MEERWEIN H,EMSTER V K.Carbocation[J].Chem Ber,1922,55:2500-2505. 被引量:1

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  • 1李皓光,赵晓光,周涵,聂红.氢分子在超深度加氢脱硫催化剂上吸附与解离的量子力学研究[J].石油学报(石油加工),2007,23(1):51-57. 被引量:4
  • 2潘月秋,王大喜,高金森.重油特征分子尺寸的精确计算方法[J].石油学报(石油加工),2007,23(4):63-67. 被引量:9
  • 3DUANAJ, XUCM, GAO J S, et al. Molecular simulation for catalytic hydrotreatment of coker heavy gas oil derived from Athabasea bitumen [J]. Journal of Molecular Structure, 2005, 734 (1-3): 89 97. 被引量:1
  • 4MOSES P G, HINNEMANN B, TOPSE H, et al. The hydrogenation and direct desulfurization reaction pathway in thiophene hydrodesulfurization over MoSz catalysts at realistic conditions: A density functional study[J]. Journal of Catalysis, 2007, 248(2) : 188-203. 被引量:1
  • 5MOSES P G, HINNEMANN B, TOPSE H, et al. The effect of Co-promotion on MoSz catalysts for hydrodesulfurization of thiophene: A density functional study[J]. Journal of Catalysis, 2009, 268(2): 201-208. 被引量:1
  • 6COELHORR, HOVELL I, MARISA B, et al. Characterization of aliphatic chains in vacuum residues (VRs) of asphaltenes and resins using molecular modelling and FTIR techniques [J]. Fuel Processing Technology, 2006, 87(4): 325-333. 被引量:1
  • 7高嫒嫒.两种原油卟啉化合物结构特征及其对重油催化裂化影响研究[D].上海:华东理工大学,2011. 被引量:1
  • 8刘琼,龙军,武志强,等.摩擦改进剂烷基链特性的研究[C]//全国第十七届润滑脂技术交流会论文集,广西,2013:40-43. 被引量:1
  • 9PFAENDTNER J, BROADBELT L J. Elucidation of structurreactivity relationships in hindered phenols via quantum chemistry and transition state theory [J]. Chemical Engineering Science, 2007, 62 ( 18-20 ) 5232-5239. 被引量:1
  • 10苏朔,龙军,段庆华,等.含硫屏蔽酚抗氧剂构效关系的密度泛函理论研究[C]//第五届国际分子模拟与信息技术应用学术会议论文集,武汉,2010:736-746. 被引量:1

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