CHARACTERISTICS OF MICROMIXING IN BATCH STIRRED TANK REACTOR

顾培韵; 孙建中; 潘勤敏; 钱微

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CHARACTERISTICS OF MICROMIXING IN BATCH STIRRED TANK REACTOR

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- CHARACTERISTICS OF MICROMIXING IN BATCH STIRRED TANK REACTOR
- CIESC Journal Issue 1, (1994)
- 作者机构：
  
  浙江大学高分子科学与工程系,浙江大学高分子科学与工程系,浙江大学高分子科学与工程系,浙江大学高分子科学与工程系杭州 310027,杭州 310027,杭州 310027,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q02
- Online First：25 February 1994，
  
  Published：25 February 1994
- 稿件说明：
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顾培韵, 孙建中, 潘勤敏, et al. CHARACTERISTICS OF MICROMIXING IN BATCH STIRRED TANK REACTOR[J]. CIESC Journal, 1994, (1).
DOI：

顾培韵, 孙建中, 潘勤敏, et al. CHARACTERISTICS OF MICROMIXING IN BATCH STIRRED TANK REACTOR[J]. CIESC Journal, 1994, (1). DOI：

摘要

1 引言微观混合是指流体分子尺度上的混合

而化学反应过程又是反应物分子间相互有碰撞作用的过程

微观混合对搅拌槽内进行化学反应有直接影响

因此开展对间歇搅拌反应器微观混合状况的研究十分必要。但微观混合的机理和模型较复杂

测定方法较困难

过去20年来集中于机理与模型研究

实际应用报道较少。本文对乙酸乙酯不可逆二级皂化间歇反应器中搅拌转速、介质粘度对微观混合状况的影响进行研究。 2 微观混合状态的描述 2.1 微观混合模型概述从Danckwerts提出一整套混合统计概念和微观混合的2种极限理想状态后

许多研究者力求把这2种状态结合起来描述实际的微观混合状态

并通过大量实验

从工程和机理角度提出了不少微观混合模型。但这些工程模型都是单参数模型

经湍流类比分析

其微观混合参数都与理想混合时间有关

具有共同的结构特征。

Abstract

With the second-order irreversible reaction of sodium hydroxide and ethyl acetate as working reaction

the average micromixing level of water and pseudo-plastic CMC fluids of different viscosities under various agitating conditions in the whole batch reactor was investigated. By comparing the theoretical analytic curves of micromixing model with the measured curves

the evaluation of micromixing states in the batch stirred tank reactor was carried out.

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