烷基化工艺及硫酸烷基化反应器研究进展

发布时间：2018-04-23 16:16

本文选题：烷基化 + 异丁烷　；参考：《化工进展》2017年05期

【摘要】：目前烷基化研究主要集中在新型催化剂的开发和酸烃混合过程的强化,研究开发新型烷基化反应器是突破点之一。本文综述了国内外碳四烷基化工艺技术现状,简述了硫酸、氢氟酸、离子液体、固体酸作为催化剂的反应工艺。回顾了碳四烷基化反应机理,指出异丁烷的氢转移是反应的控速步骤,进而提出烷基化技术改进的关键是强化异丁烷向酸相的传质,并以此指导新型反应器的设计。文章着重介绍了硫酸法烷基化反应器,将其按照混合方式分为搅拌混合式、静态混合式、喷射混合式以及剪切混合式等。从原料混合、产物分离和传热等方面详细介绍了几种典型的硫酸法烷基化反应器,并对各种反应器的优缺点进行了总结,便于炼油企业结合自身优势选择合理的烷基化反应器及工艺路线。
[Abstract]:At present, the research of alkylation mainly focuses on the development of new catalysts and the enhancement of the mixed process of acid hydrocarbons, and the research and development of new alkylation reactors is one of the breakthrough points. The present situation of carbon tetraalkylation technology at home and abroad is reviewed. The reaction process of sulfuric acid, hydrofluoric acid, ionic liquid and solid acid as catalyst is briefly described. This paper reviews the reaction mechanism of carbon tetraalkylation, points out that hydrogen transfer of isobutane is the step of controlling reaction speed, and then points out that the key to the improvement of alkylation technology is to enhance the mass transfer from isobutane to acid phase and to guide the design of new reactor. The alkylation reactor with sulfuric acid method is introduced in this paper. The reactor is divided into mixing type, static type, jet type and shear type according to mixing mode. Several typical sulfuric acid alkylation reactors are introduced in detail from the aspects of raw material mixing, product separation and heat transfer, and the advantages and disadvantages of each reactor are summarized. It is convenient for refineries to select reasonable alkylation reactor and process route in combination with their own advantages.
【作者单位】：郑州大学化工与能源学院;
【基金】：国家自然科学基金项目(21506197,21646011)
【分类号】：TE96

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