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全逆流无返混喷射塔板技术在C4萃取中的应用 预览

Application of complete countercurrent tray in C4 extraction
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摘要 由于石油炼制和石化生产过程中产生的副产物C4烃类的产量逐年增加,据推算,国内炼 厂 C4总量每年超过600X 104 t,因此,研究C4组分的分离及深加工利用开发对国内乙烯工业及相关工 业的发展具有重要的战略意义和现实作用.目前,在 C4分离及深加工的萃取精馏中存在塔板阻力降 大、处理能力达不到满负荷、分离指标不合格、能耗高等问题.介绍了浙江宁波昊德化学工业股份有限 公司C4萃取及汽提塔改造前的情况及存在的问题.对此,将原D J浮阀塔板全部更换为全逆流塔板, 改造后装置负荷由约80%提高到130%,蒸汽消耗节省35%,各项指标均良好,未出现拦液等现象,装 置目前运行平稳. As a by-product of oil refining and petrochemical production process , C4 hydrocarbon productions increase year by year. It is estimated that the total anrefineries in China are more than 6 million tons , therefore the research of C4 component separation and utilization of deep processing has important strategic significance and practical effect on the development of China's ethylene industry and related industries. At present , there are some difficulties on the extractive distillation of C4 hydrocarbon separation and deep processing such as traypressure drop larger, processing capacity not up to the full load, separation index of unqualified , high energy consumption. In this paper , the problems of C4 hydrocarbon extraction towers and strippingtowers before the renovation in Ningbo Haode Chemical Corporation are introducedexisting problems , the original DJ valve trays are replaced by the complete countercurrent trays.After the reconstruction , the processing capacity increases from about 80% loading to 130% loading , the steamconsumption is saved by 35%, all indicators of productions are better, the phenomenon ofliquid blocking device don' appear, and all devices are running smoothly.
作者 洪伟 祝秀 刘海彬 HongWei, ZhuXiu, LluHaibin(Tia nj in Chuangju Technology Co. , Ltd. , Tianj in, China)
出处 《石油与天然气化工》 北大核心 2017年第3期51-55,共5页 Chemical Engineering of Oil and Gas
关键词 全逆流塔板 C4萃取 发泡物系 扩产改造 蒸汽消耗 节能 complete countercurrent tray , C4 extraction , foaming system , production expansion and reformation , steam consumption , energy saving
作者简介 洪伟(1977-),男,高级工程师,2004年毕业于河北工业大学化工学院,硕士,主要从事化工分离塔器装置的研发和设计工作.E-mal:40955043@qq.com
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