环己酮装置精馏工序节能降耗浅析A Brief Analysis about Energy Saving and Consumption Reducing in Cyclohexanone Distillation Process
谭红彩
TAN Hong-cai
摘要(Abstract)：
浅析了影响环己酮装置精馏工序能耗、物耗的主要因素,针对性地提出一系列的优化控制方案,包括控制回流比、改变进料状态、优化多塔分离序列、提高工艺管理水平等,实现节约蒸汽1.94 t/h,每吨酮降低循环水量35.7 t;通过增开轻二塔回收轻质油中的环己酮,装置每吨酮的物耗(苯耗)能降低12 kg,年创效可达670万元。通过对新技术以及新设备的应用现状和趋势的分析,结合车间生产实际,提出将轻塔气相给酮一塔再沸器进行加热,即采用双效精馏以及对轻塔更换高效规整填料等改造方案,有望更大程度节约蒸汽和循环水,降低消耗。
The main factors which affecting the process of cyclohexanone distillation unit energy and material consumption were analyzed,and a series of targeted solutions to optimize control was proposed,including control reflux ratio,change in feeding state,multi-tower separation sequence optimization,improve process management level to achieve savings of steam 1.94 t/h,reducing the circulating water35.7 t/t cyclohexanone;through to operation old distillation tower and recycle cyclohexanone in light oil,the material consumption(benzene consumption) of device could reduce 12 kg/t cyclohexanone,gain 6.7million yuan.Through new technology and new equipment application status and trends,combined with actual production workshop,a method of vapor light tower reboiler heating was given which used doubleeffect distillation and efficient replacement for the light tower and other rehabilitation programs structured packing,it was expected to save a greater degree steam and water circulation,reduce consumption.
关键词(KeyWords)：
环己酮;精馏;节能降耗
cyclohexanone,distillation,energy saving and consumption reducing
基金项目(Foundation):
作者(Author):
谭红彩
TAN Hong-cai
DOI: 10.16090/j.cnki.hcxw.2013.12.015
参考文献(References)：
- [1]王梦华.精馏过程节能技术探讨[J].齐鲁石油化工,2003,31(4):324-326.
- [2]姚玉英.化工原理[M].第二版.天津:天津科学技术出版社,2005:16-44.
- [3]黄颖芬,王维德,晋正茂,赵鹏.进料热状况对精馏能耗影响[J].化工进展,2006,25:10-12.
- [4]边习棉,朱银惠,李辉.精馏过程的节能途径[J].广东化工,2007,34(11):88-91.
- [5]许世兵,余晖.精馏分离与节能[J].精细化工中间体,2001,36(6):38-40.
- [6]王建忠,马文婵,王鹏辉.精馏过程的节能现状与对策[J].河北化工,2006,29(4):27-30.
- [7]李英劼.化工生产中降低精馏技术能耗的思路[J].石油与化工设备,2001,14:58-60.
- [8]杨富翔,盖恒军.节能技术在精馏系统中的应用[J].广东化工,2012,39(15):7-8.
- [9]高维平,杨莹,张吉波,等.化工精馏高效节能技术开发及应用[J].吉林化工学院学报,2008,25(3):1-5.
- [10]Humphrey J L,Seibert A F.Separation teehnologies:an opportunity for energy savings[J].Chem Eng Prog,1992,88(3):32-41.
- [11]李群生.现代精馏技术的能耗及节能进展[J].维纶通讯,2007,27(1):21-28.
- [12]薛美盛,祁飞,吴刚,等.精馏塔控制与节能优化研究综述[J].化工自动化及仪表,2006,33(6):1-6.