Results 21 to 30 of about 2,240 (223)
Molecular Mechanism for Azeotrope Formation in Ethanol/Benzene Binary Mixtures through Gibbs Ensemble Monte Carlo Simulation [PDF]
, 2020 Azeotropes have been studied for decades due to the challenges they impose on separation processes but fundamental understanding at the molecular level remains limited.
Gao, Xin +13 more
core +1 more source
Azeotrope Prediction by Monte Carlo Molecular Simulation [PDF]
, 2012 This article presents a methodology for checking the existence of the azeotrope and computing its composition, density, and pressure at a given temperature by integrating chemical engineering insights with molecular simulation principles.
Hadj-Kali, Mohamed +2 more
core +1 more source
SHARP DISTILLATION FOR QUATERNARY SYSTEMS
Тонкие химические технологии, 2018 Conditions of sharp distillation were considered for zeotropic quaternary system (two pairs of components are characterized by relative volatility close to 1) and systems with one (with minimum or maximum boiling point) and two (with minimum and maximum ...
A. V. Frolkova +2 more
doaj +1 more source
ChemEngineering, 2022 Standard gases are often prepared using high-pressure gas cylinders. However, it is difficult to accurately prepare a known concentration of hydrogen chloride (HCl) gas using this method because HCl is highly corrosive and adsorptive.
Reiji Aoyagi +3 more
doaj +1 more source
Тонкие химические технологии, 2016 In this work the structures of phase equilibrium diagrams of multiphase four-component systems n-hexane (n-heptane, n-octane) - cyclohexane - furfural - water were investigated.
A. Yu. Sebyakin, A. K. Frolkova
doaj +1 more source
Breaking Azeotropes by Azeotropic and Extractive Distillation in a Dividing-Wall Column
Chemical Engineering Transactions, 2013 This study gives a brief overview about using dividing-wall column (DWC) technology in azeotropic and extractive distillation processes aimed to break azeotropes. The relevant case study considered here is the bioethanol dehydration process that requires significant energy to overcome the azeotropic behaviour of ethanol-water mixture.
Kiss A.A. +2 more
openaire +2 more sources
REPLACING SODA ASH (NaOH) WITH KALIUM HYDROXYDE (KOH) IN DESTILATION OF BINARY ETHANOL-WATER MIXTURE
Alchemy, 2017 Soda ash (NaOH) has been used in bioethanol production in the second step destillation to increase the purity up to 90%. The destillation process will produce waste water with a high sodium content.
Ana Ulfa Istiqomah +2 more
doaj +1 more source
Green Processing and Synthesis, 2021 Vinyl acetate, as an essential organic chemical raw material, can be used to produce polyvinyl acetate, polyester vinyl alcohol, and other products.
Zhang Qiuli +5 more
doaj +1 more source
Azeotropes as Powerful Tool for Waste Minimization in Industry and Chemical Processes
Molecules, 2020 Aiming for more sustainable chemical production requires an urgent shift towards synthetic approaches designed for waste minimization. In this context the use of azeotropes can be an effective tool for “recycling” and minimizing the large volumes of ...
Federica Valentini, Luigi Vaccaro
doaj +1 more source
ChemEngineering, 2018 As a result of their high tuneability and low volatility, room temperature ionic liquids have been proposed as replacement solvents in a wide range of industrial applications.
Andrew S. Paluch, Pratik Dhakal
doaj +1 more source