1) double-effect distillation
双效精馏
1.
Energy conservation of methanol production process with double-effect distillation;
甲醇合成中双效精馏节能研究
2.
Simulation of double-effect distillation for purification of tetrahydrofuran;
四氢呋喃双效精馏提纯工艺及其模拟
3.
In the new process with double-effect distillation to realize heat-integration, the feed to the lower-pressure column was a side-stream with moderate methanol concentration drawn from a stage of the higher-pressure column above its feed stage.
在采用差压双效精馏实现系统内的热集成方案中, 新工艺从加压精馏塔进料板上部的侧线采出中等甲醇浓度的物料作为常压精馏塔的进料, 有效地平衡了两塔的分离负荷, 进一步降低了双效精馏的总能耗, 同时, 将预精馏塔产生的盐碱类物质浓缩分离到加压塔底采出, 使常压塔底出料为高纯度软水, 将其循环复用为预塔萃取水, 实现了系统内的工艺软水集成, 不但降低了新鲜工艺软水的消耗, 而且还减少了系统的废水排放量。
3) triple-column double-effect rectification
三塔双效精馏
1.
The problems in design for methanol process of triple-column double-effect rectification are discussed.
对甲醇三塔双效精馏设计中的问题进行了讨论,特别对常规双塔精馏和三塔双效精馏两种流程进行了模拟计算和比较。
4) double effect pressure swing distillation
双效变压精馏
1.
Optimization simulation of double effect pressure swing distillation was performed by Aspen Plus software aiming at minimal energy consumption and bounded purities of toluene and butanol.
采用双效变压精馏工艺流程分离甲苯-正丁醇物系。
5) double effect rectification energy saving technique
双效精馏节能技术
6) multi-effect distillation
多效精馏
1.
Development of the multi-effect distillation's optimal design;
多效精馏优化设计的研究进展
2.
The technological researches for recovery of DMF by multi-effect distillation;
多效精馏回收DMF工艺的研究
3.
Energy-saving distillation proces- ses were researched systematically,and the characters of heat pump distillation,multi-effect distillation and thermally coupled distil- lation were analyzed emphatically.
本文系统研究各种节能型精馏流程,重点分析3种热泵精馏、4种多效精馏和4种热偶精馏的流程特点,建立节能型精馏流程优化模拟及分析系统,将模拟优化计算的结果与普通精馏流程对比。
补充资料：双效磷
60%双效磷乳剂：
又称敌马混剂。
具广谱、高效的特点。有强烈的触杀，胃毒作用，也有一定的内吸作用。对人畜中等毒性。
防治对象：野蚕、桑蟥、桑毛虫、桑尺蠖、绿盲蝽、灯蛾、桑螟、桑蓟马、金龟子、叶虫等。
常用浓度与安全间隔期：1500倍6～7天。
注意：可与其他药剂混合使用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条