{"title":"The Reaction Mechanism of Catalytic Cracking: Quantifying Activity, Selectivity, and Catalyst Decay","authors":"B. Wojciechowski","doi":"10.1080/01614949808007110","DOIUrl":null,"url":null,"abstract":"Abstract Catalytic cracking has reached technological maturity without the benefit of a fundamental understanding and quantification of its elementary processes. Without this understanding, advances in this field have become increasingly rare and will be even more difficult to achieve in the future. This article offers a basis for the development of a fundamental understanding of catalytic cracking. It ties together all of the principal phenomena in catalytic cracking and lays a foundation for their quantification on the basis of the following postulates. 1. All important processes involved in the suite of reactions which fall under the generic name of “catalytic cracking” proceed via the mediation of surface-resident ions. 2. These ions undergo only two types of reactions and produce all the major gas-phase products: (a) Bimolecular disproportionations with neutral gas-phase molecules, or with neutral portions of neighboring carbenium ions, via the formation of pentacoordinated carbonium ion intermediate...","PeriodicalId":50986,"journal":{"name":"Catalysis Reviews-Science and Engineering","volume":null,"pages":null},"PeriodicalIF":9.3000,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"60","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Reviews-Science and Engineering","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1080/01614949808007110","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 60
Abstract
Abstract Catalytic cracking has reached technological maturity without the benefit of a fundamental understanding and quantification of its elementary processes. Without this understanding, advances in this field have become increasingly rare and will be even more difficult to achieve in the future. This article offers a basis for the development of a fundamental understanding of catalytic cracking. It ties together all of the principal phenomena in catalytic cracking and lays a foundation for their quantification on the basis of the following postulates. 1. All important processes involved in the suite of reactions which fall under the generic name of “catalytic cracking” proceed via the mediation of surface-resident ions. 2. These ions undergo only two types of reactions and produce all the major gas-phase products: (a) Bimolecular disproportionations with neutral gas-phase molecules, or with neutral portions of neighboring carbenium ions, via the formation of pentacoordinated carbonium ion intermediate...
期刊介绍:
Catalysis Reviews is dedicated to fostering interdisciplinary perspectives in catalytic science and engineering, catering to a global audience of industrial and academic researchers. This journal serves as a bridge between the realms of heterogeneous, homogeneous, and bio-catalysis, providing a crucial and critical evaluation of the current state of catalytic science and engineering. Published topics encompass advances in technology and theory, engineering and chemical aspects of catalytic reactions, reactor design, computer models, analytical tools, and statistical evaluations.