烷基化工艺及硫酸烷基化反应器研究进展.pdf

化
工.
进展
2017年第36卷第5期
CIIEMIICALIINDUSIRY AND ENGINEERING PROGRIESS
1573
CバCバTC
综述与专论
烷基化工艺及硫酸烷基化反应器研究进展
李明伟,李涛,任保增
(郑州大学化工与能源学院,河南郑州450001
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、気寂酸、离子液体、固体酸作为催化剂
的反应工艺。回顺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驟,进而提出烷基化技术改进
的关键是强化异丁姹向酸相的传质,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碗酸法烷基化反应器,并对各种反应器的优缺点进行了总结,便于炼油企业结合
自身优勢选择合理的烷基化反应器及工艺路线
关键词:烷基化;异丁烷;反应器;混合;聚结
中图分类号:T1:624.4+8
文献标志码:A
文章编号:1000-6613(2017)05-1573-08
D)O:10.16085/j-iSsn.10006613.2017.05.003
Advance of alkylation process and concentrated sulfuric acid alkylation
reactor
II Mingwei, 1/ Ta0, RF Baozeng
School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, China
Abstract: At prcscnt, thc rcscarch of alkylation Is mainly focuscd on the dcvclopmcnt of ncw catalysts
and the strengthening of acid-hydrocarbon mixing process. The development of novel liquid acid
alkylation reactors is one of the brcak through points. In this papcr, the status of alkylation tcchnology at
home and abroad were reviewed. The reaction process of solid acid, sulfuric acid, hydrofluoric acid and
ionic liquid as catalyst were introduced. The mechanism of Ca alkylation was also reviewed. Based on the
fact that thc H transfcr of isobutane is the control stcp of the rcaction, it was rcportcd in this papcr that thc
key of the development of alkylation is to strengthen the mass transter OT isobutane to acid phase, which
is of great significance to the design of novel reactors. The reactors for concentrated sulfuric acid
alkylation, which are divided into stirred mixing type, static mixing type, injection mixing type and shear
mixing type according to the diffcrent ways of miing, were emphatically introduccd. This papcr
discusscs scvcral typical sul furic acid alkylation reactors, Including reactants mixing, products scparation
and heal transfer. The advantages and disadvantages of various reactors are summaried, which is
convenient for refiners to choose the reasonable alkylation reactor and process roule
Kcy words: alkylation:; isobutane; reactors; mixing; coalescence
2017年1月起,全国范围提前一年供应国V标
收稿日期:2016-10-08:修改稿日期:2017-01-11
准汽、柴油,预计2017年困内汽油需求量为1.29基金项目:国家自然科学基金项目(21506197,21646011)
亿吨。国V标准的提前实施,意味着亟需开发清
第一作者:李明伟(1991ー),男,硕士研究生,F- mail: mirai
联系人:李涛,博士,副教授,士生导师,主要从事化工热力学利
沾的高品质汽油调和组分,既要求其具有较高的辛生物制氢技术方面的研究工作。T-mai:Hiao_0912a126.com
万方数括