查询词典 distillation

Based on the fundamental of distillation, MESH model including equations of mass balance, phase equilibrium, mole fraction summations and heat balance for atmosphere-vacuum distillation column was established. The key parameter such as temperature and pressure of product was obtained through solution of the model on Pro/Ⅱ platform. The comparison of simulation results with requirement of spot technology was analyzed.

基于蒸馏原理，对常减压蒸馏塔建立包含质量平衡、相平衡、摩尔分数归一化和能量平衡等方程构成的MESH模型，在Pro/Ⅱ平台上进行流程模拟，获得各塔侧线产品的温度和压力等关键参数，并与现场工艺要求进行对比。

Based on the fundamental of distillation,MESH model including equations of mass balance,phase equilibrium,mole fraction summations and heat balance for atmosphere-vacuum distillation column was established.

稳态流程与时间无关，是化工流程模拟中应用最为普遍的重要技术之一，需要建立质量平衡、相平衡、摩尔分数归一化和能量平衡等(MESH—Massbalances，Equilibrium relations，mole fractionSummations and Heat balances)方程构成的数学模型来描述其工艺流程中状态参数的分布情况[6，8-9]。

Vacuum transfer line is one of the most important pipelines of atmospheric vacuum distillation plant which starts from the exit of heaters and extends to entrance of distillation tower.

减压转油线是炼油厂常减压蒸馏装置中加热炉出口到蒸馏塔底入口的管道，它是炼油装置中最重要的管道之一。

Results show that the three-effect concurrent distillation can save energy consumption by 57.8%, 57.5% and 58.0% respectively, compared with mono-column distillation when treating 70%, 80% and 85% mass concentration methanol.

研究结果表明，该工艺与单塔工艺相比，处理浓度分别为70%、80%和85%的甲醇物料时，节能分别为57.8%、57.5%和58.0%。

The results show that the three-effect concurrent distillation is the best separation technology in response to the objective function of the ratio of multi-effect distillation expenditures to mono-column expenditures.

并以多效精馏与单塔精馏总费用的相对值最低为目标函数，确定分离甲醇－水体系的最佳方案为三效顺流精馏工艺。

The paper summarized the principle of Molecule distillation technology and the difference from the general vacuum distillation.

阐述了分子蒸馏的基本原理及其区别于普通真空蒸馏的主要特点。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

The corrosion phenomenon and mechanism of atmospheric distillation unit processing thick oil have been analyzed to provide a feasible theory basis for guaranteeing stable,safe and long period running of atmosphere distillation equipments.

对加工稠油的常压装置各部位的腐蚀现象和腐蚀机理作了分析，为保证常压设备平稳安全长周期运行提供切实可行的理论依据。

Especially for complicated multicomponent distillation processes, such as three-phase distillations in this work, the equilibrium model will lead to a significant error in the distillation modelling.

实际精馏过程往往很难真正达到汽液平衡状态，因此Murphree板效率和等板高度概念常用于修正平衡模型计算中的非理想特性。

This paper reviews the definition, principle and character of molecular distillation and the factor influencing molecular distillation velocity, and especially introduces the development and application of this technology in food industry.

本文介绍了分子蒸馏的概念、原理、特点以及影响分子蒸馏速度的因素；其中着重论述了分子蒸馏技术目前在食品工业中的应用发展情况。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48