Results 11 to 20 of about 164,870 (306)

Heterogeneous Extractive Batch Distillation of Chloroform - Methanol – Water : Feasibility and Experiments [PDF]

open access: yes, 2008
A novel heterogeneous extractive distillation process is considered for separating the azeotropic mixture chloroform – methanol in a batch rectifying column, including for the first time an experimental validation of the process.
Berg   +35 more
core   +1 more source

Design simulation and economic optimization of a benzene-toluene-xylene system distillation process upon the energy cost [PDF]

open access: yesE3S Web of Conferences, 2020
Distillation is the most extensively used in separation process of the chemical industry. Relationships between non-linear variables, multivariable interactions, dynamic system properties, and other irregularities render the study of design simulation ...
Silviana S.   +5 more
doaj   +1 more source

Preliminary Design of Reactive Distillation Columns [PDF]

open access: yes, 2005
A procedure that combines feasibility analysis, synthesis and design of reactive distillation columns is introduced. The main interest of this methodology lies on a progressive introduction of the process complexity.
Agreda   +42 more
core   +2 more sources

Generalised model for heteroazeotropic batch distillation with variable decanter hold-up [PDF]

open access: yes, 2013
A general model of batch heteroazeotropic distillation is proposed. Both liquid phases present in the decanter can be refluxed or withdrawn as distillate, their hold-up can be increased, decreased or kept constant, as well. By assuming maximal separation,
Gerbaud, Vincent   +2 more
core   +2 more sources

DEPENDENCE OF EXTERNAL AND INTERNAL ENERGY-SAVING FOR RECTIFICATION OF BINARY MIXTURES

open access: yesТонкие химические технологии, 2016
The comparison of energy consumption for rectification of binary mixtures in one-column and twocolumn apparatuses was carried out with the use of vapor flow energy from the first column for heating the second column.
M. K. Zakharov, A. A. Shvets
doaj   +1 more source

Heterogeneous Batch Distillation Processes: Real System Optimisation [PDF]

open access: yes, 2008
In this paper, optimisation of batch distillation processes is considered. It deals with real systems with rigorous simulation of the processes through the resolution full MESH differential algebraic equations. Specific software architecture is developed,
B. Kotai   +41 more
core   +1 more source

Association of Visceral Fat Area, Smoking, and Alcohol Consumption with Reflux Esophagitis and Barrett's Esophagus in Japan.

open access: yesPLoS ONE, 2015
BackgroundCentral obesity has been suggested as a risk factor for gastroesophageal reflux disease. The aim of this study was to evaluate the association of visceral fat area and other lifestyle factors with reflux esophagitis or Barrett's esophagus in ...
Juntaro Matsuzaki   +8 more
doaj   +1 more source

Diagnostic value of reflux episodes in gastroesophageal reflux-induced chronic cough: a novel predictive indicator

open access: yesTherapeutic Advances in Chronic Disease, 2022
Background: Multichannel intraluminal impedance and pH-monitoring (MII-pH) is an essential testing modality for gastroesophageal reflux-induced chronic cough (GERC), while the existing diagnostic criteria still have some inherent defects.
Shengyuan Wang   +9 more
doaj   +1 more source

Heterogeneous batch distillation processes for waste solvent recovery in pharmaceutical industry [PDF]

open access: yes, 2009
A summary about our experiences in the introduction of heterogeneous entrainers in azeotropic and extractive batch distillation is presented in this work.
Arias-Barreto, Alien   +3 more
core   +1 more source

THEORETICAL RATIONALE FOR THE SELECTION OF THE OPTIMAL SCHEME OF SEPARATION OF THE THREE-COMPONENT MIXTURE

open access: yesТонкие химические технологии, 2017
It is theoretically justified that for the scheme of separation of three-component mixtures with the release of the high-boiling component in the first column there is a region of initial compositions for which the heat costs are the least. An expression
M. K. Zakharov, Yu. A. Pisarenko
doaj   +1 more source

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