文献类型：期刊文献

中文题名：环己酮装置废碱液分离技术的工业应用

英文题名：COMMERCIAL APPLICATION OF THE SEPARATION TECHNOLOGY FOR WASTE LYE OF CYCLOHEXANONE PRODUCTION UNIT

作者：周萍[1];白志山[1];汪华林[1];杨强[1]

机构：[1]华东理工大学化工机械研究所,上海200237

年份：2008

卷号：39

期号：6

起止页码：18

中文期刊名：石油炼制与化工

外文期刊名：Petroleum Processing and Petrochemicals

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：环己酮;碱洗;分离;工业规模

外文关键词：cyclohexanone; caustic washing; separation; full scale

摘要：为解决环己烷氧化法制备环己酮过程中产生的氧化液废碱的分离问题，提出将重力沉降技术、旋流分离技术和聚结分离技术依次串联组合的梯度分离技术，同时采用较为先进的两段逆流碱洗工艺，实现水的循环利用。该技术在巴陵石油化工有限责任公司80kt／a环己酮生产装置上的应用结果表明，当一级碱洗分离器进口Na^-质量分数在2．92％～3．20％时，经过碱洗分离系统处理后，聚结器出口有机相中Na^-的质量浓度由改造前的6mg／L以上降低为3mg／L以下，聚结器出口有机相中水含量由改造前的0．1％～0．2％降低为0．05％左右。环己酮生产工艺中烷蒸馏塔工作周期由改造前的平均2个月延长至改造后的9个月以上，实现整套装置长周期稳定运转。同时，降低了生产成本，减少了环境污染。
In order to solve the waste lye separation problem of preparing cyclohexanone fromcyc coa ohexane, a gradient separation technique based on gravity sedimentation, hyd escence techniques in series was proposed. Besides, a two stage countercurrent process was applied for the recycling water. This technology was adopted in the 80 kt/a rocyclone and of alkali wash cyclohexanone production unit of Baling Petrochemical Company successfully. The commercial application results showed that when the Na^＋ content of the 1^st stage alkali wash separator inlet was in the range of 2.92%- 3.20%,after treatment in the organic phase the contents of Na＋ and water dropped form more than 6 mg/L（prior revamping） to less than 3 mg/L, and from 0. 1%-0. 2% （prior revamping） to 0. 05% , respectively. The running length of alkane distillation column was prolonged from average 2 months to more than 9 months. Furthermore, the production cost was reduced, as well as less pollution.