硫酸法烷基化装置原始开工问题研究  

RESEARCH ON INITIAL START-UP OF ALKYLATION PLANT BY SULFURIC ACID CATALYSIS

作　　者：苗鹏杰 陈自娇 李烨 郭勤 田虎楠 Miao Pengjie;Chen Zijiao;Li Ye;Guo Qin;Tian Hunan(College of Energy and Chemical Engineering,Xinjiang Institute of Technology,Aksu,Xinjiang 843100)

机构地区：[1]新疆理工学院能源化工工程学院,新疆阿克苏843100

出　　处：《石油炼制与化工》2024年第4期47-52,共6页Petroleum Processing and Petrochemicals

基　　金：新疆维吾尔自治区自然科学基金面上项目(2022D01 C347);新疆维吾尔自治区天池英才领军人才引进项目。

摘　　要：面对硫酸法烷基化装置原始开工存在异丁烷不足、缺少烷基化油的难题,按照传统的开工标准会发生投料时“飞温”的危险。利用Aspen Plus软件对反应工段进行模拟及灵敏度分析,结果表明开工原料中含质量分数12.7%的碳四烯烃组分时最高反应温度为17℃,由此提出应用正丁烷代替部分异丁烷及全部烷基化油的新开工方法,大幅度降低对开工异丁烷及烷基化油的要求,确立装置原始开工的“五步法”新方案,使装置顺利初次开工并获得成功。实践表明,该新方法具有安全可靠、控制稳定的特点,对非标准状况下烷基化装置原始开工具有指导意义。Faced with the problems of insufficient isobutane and lack of alkylation oil in the initial start-up of alkylation plant by sulphuric acid catalysis,the danger of“runaway temperature”will occur according to the traditional start-up standard.The simulation and sensitivity analysis of the reaction process were carried out by Aspen Plus software.The results showed that the maximum reaction temperature was 17℃when the starting material contained 12.7%C 4 olefin component.Therefore,a new start-up method of using n-butane to replace part of isobutane and all alkylated oil was put forward,which greatly reduced the requirements for start-up isobutane and alkylated oil,and a new“five step method”scheme for the initial start-up of the unit was established,making the initial start-up of the plant successful.The application results indicated that the new method was safe,reliable and stable,and had has a guiding significance for the initial start-up of alkylation units under non-standard conditions.

关 键 词：硫酸法 烷基化 原始开工 化工模拟 

分 类 号：TE96[石油与天然气工程—石油机械设备]