Results 31 to 40 of about 593,895 (208)

Basic Principles of a Hybrid Distillation and Pervaporation Unit in a Single Column: an Analytic Tool

open access: yesChemical Engineering Transactions, 2018
Distillation-Pervaporation Hybrid Systems (DPHS) are a relatively novel technology for separating multicomponent azeotropic mixtures, due to pervaporation is not limited by the liquid-vapor (LV) equilibria.
Juan Leon, Javier Fontalvo
doaj   +1 more source

Multivariable Control of Distillation Column

open access: yesIFAC Proceedings Volumes, 1995
Abstract Three methods for discrete control of distillation column are compared. The distillation column, separating binary mixture of methanol-water, is regarded as a two inputs - two outputs system. The controller design for all methods is made by the pole placement method, but three different variants are used: The multivariable case, the ...
Jiří Macháĉek, Josef Kotyk
openaire   +1 more source

Infinite/infinite analysis as a tool for an early oriented synthesis of a reactive pressure swing distillation [PDF]

open access: yes, 2007
The study contributes to the characterization of an original reactive pressure swing distillation system. The methyl acetate (MeAc) transesterification with ethanol (EtOH) to produce methanol (MeOH) and ethyl acetate (EtAc) is shown as illustrative ...
Reneaume, Jean-Michel   +6 more
core   +1 more source

Simulation of a new Pressure Swing Batch Distillation System [PDF]

open access: yes, 2008
The operation and performance of a new pressure swing batch distillation configuration is investigated by rigorous simulation calculations. A maximum boiling point azeotrope is separated in a double column batch rectifier. We study the influence of the
Kopasz, A., Modla, Gábor, Lang, P.
core   +1 more source

Comparison of extractive distillation flowsheets for methanol–tetrahydrofuran–water mixtures

open access: yesТонкие химические технологии, 2020
Objectives. Synthesis and comparative analysis of the extractive distillation flowsheets for aqueous mixtures of solvents utilized in pharmaceutical industries using the example of a methanol−tetrahydrofuran−water system with various compositions.
V. M. Raeva, A. M. Dubrovsky
doaj   +1 more source

Simulation Model of Divided Wall Distillation Column (DWDC)

open access: yesMisan Journal of Engineering Sciences
: Separating three high-purity products from a mixture of three components requires a series of columns for distillation and separation. This process results in significant operational and capital costs, as well as a substantial footprint within the ...
Ahmed Hussien
doaj   +1 more source

Production of n-propyl acetate by reactive distillation : experimental and theoretical study [PDF]

open access: yes, 2007
First steps of the development of a catalytic reactive distillation process for the production of n-propyl acetate based on experiments and simulations are proposed.
Forner, Florian   +6 more
core   +1 more source

色谱法提纯鱼油中EPA/DHA生产过程甲醇回收工艺对比Comparison of methanol recovery processes in the production of EPA/DHA purified from fish oil by chromatography

open access: yesZhongguo youzhi
旨在为色谱法从鱼油中进一步分离纯化DHA和EPA生产企业甲醇废液回收工艺方案选择提供参考,介绍了普通单塔精馏、双效精馏、单塔热泵精馏和双塔热泵精馏4种甲醇回收工艺流程和主要参数,并以40 t/h甲醇废液为例,利用Aspen Plus软件对4种甲醇回收工艺路线的运行能耗做了模拟计算,对其成本进行了对比分析。结果表明:普通单塔精馏、双效精馏、双塔热泵精馏和单塔热泵精馏的冷却能耗和加热能耗依次降低;对比压缩机电耗在内的综合能耗(折合标煤),普通单塔精馏最高,双塔热泵精馏 ...
陈利斌,郑高吉,朱志坤,许可 CHEN Libin, ZHENG Gaoji, ZHU Zhikun, XU Ke
doaj   +1 more source

Implementation of Neural Predictive Control To Distillation Column

open access: yesReaktor, 2017
This paper presents a neural predictive controller that is applied to distillation column. Distillation columns represent complex multivariable system, with fast and slow dynamics, significant interactions and directionality.
s. Anwari
doaj   +1 more source

Modeling and Simulating Complete Extractive Distillation Process of Ethanol-Water Mixture Using Equilibrium-Stage Distillation Model and Efficiency Correlations (Barros & Wolf) on EMSO Platform

open access: yesChemical Engineering Transactions, 2016
This paper envelops the steady-state simulation of the complete process of extractive distillation for the production of anhydrous ethanol and pure water from the azeotropic mixture of ethanol-water.
J. Villarroel Rojas   +3 more
doaj   +1 more source

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