蔡剑
CAI Jian(China Textile Academy

• 1:中国纺织科学研究院

摘要(Abstract)：

研究了影响N-甲基吗啉-N-氧化物(NMMO)水溶液稳定性的因素,通过调节pH值和添加稳定剂来增加NMMO水溶液的稳定性,解决了NMMO蒸发过程中物料的分解问题。确定了采用低温三效蒸发组合蒸汽喷射式热压缩系统流程,用于千吨级Lyocell生产线上,蒸发效率可以达到0.32 t蒸汽/t水,取得了显著的节能效果。
The factors affecting the stability of NMMO aqueous solution are studied.The stability of NMMO aqueous solution is improved by adjusting the pH value and adding a stabilizer.The material decomposition problem during NMMO evaporation process is also solved.The NMMO low temperature three-effect combination of thermal vapor recompression(TVR) process is used in kiloton production line of Lyocell.The evaporation efficiency can reach 0.32 tons of steam/tons of water,energy-saving is obtained.

关键词(KeyWords)： NMMO;副反应;稳定剂;多效蒸发;蒸汽喷射式热压缩
NMMO,side reaction,stabilizer,multi-effect evaporation,thermal vapor recompression

Abstract:

Keywords:

基金项目(Foundation): “十二五”科技支撑计划项目(2011BAE11B02)

作者(Author): 蔡剑
CAI Jian(China Textile Academy

DOI: 10.16090/j.cnki.hcxw.2013.06.008

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