Results 11 to 20 of about 6,133,601 (331)

Manufacturing of nanopillar (ultra-dispersed) catalytically active materials through chemical engineering

open access: yesТонкие химические технологии, 2021
Objectives. Catalytically active materials are required in different chemical engineering processes. This makes the development of new materials with high efficiency and original ways in which to obtain them of significant interest.
A. P. Antropov   +4 more
doaj   +1 more source

Catalytic Reactive Distillation for the Esterification Process: Experimental and Simulation [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2017
In the present study, methyl acetate has been synthesized using esterification of acetic acid with methanol in a continuous packed bed catalytic reactive distillation col- umn in the presence of novel Indion 180 ion ...
M. Mallaiah, K. A. Kishore, G. V. Reddy
doaj   +1 more source

SELECTING THE OPTIMUM SCHEME OF THE SEPARATION OF HYDROCARBON GASES BY DISTILLATION

open access: yesТонкие химические технологии, 2018
The heat costs in distillation columns were determined for the purpose of separating a four-component gas mixture in gas fractionators with various component selection sequences. A method for selecting the optimal scheme was developed. It is based on the
M. K. Zakharov, A. A. Boychuk
doaj   +1 more source

Prevalence of Helicobacter pylori in patients with gastro-oesophageal reflux disease : systematic review. [PDF]

open access: yes, 2003
Objectives: To ascertain the prevalence of Helicobacter pylori in patients with gastro-oesophageal reflux disease and its association with the disease.
Childs, S.   +3 more
core   +2 more sources

Optimisasi Tekanan dan Nisbah Refluks pada Pemurnian ∆-Guaiena Minyak Nilam (Pogostemon cablin) secara Distilasi Fraksional

open access: yesJurnal Ilmu Pertanian Indonesia, 2022
Patchouli oil is one of Indonesia's important essential oils as an export commodity. Δ-Guaiene is one of the terpenes in the oil, which is shown to have antimicrobial activity against some fungi and bacteria.
Rahmi Rahmawati   +2 more
doaj   +1 more source

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

Adiposity, diabetes, lifestyle factors and risk of gastroesophageal reflux disease: a Mendelian randomization study

open access: yesEuropean Journal of Epidemiology, 2022
Adiposity, diabetes, and lifestyle factors are linked to gastroesophageal reflux disease (GERD) in observational studies. We conducted a two-sample Mendelian randomization analysis to determine whether those associations are causal.
S. Yuan, S. Larsson
semanticscholar   +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

Parametric investigation of fixed-tray, semi-continuous distillation column for ethanol separation from water [PDF]

open access: yes, 2016
This work was aimed to evaluate the parameters affecting the separation of model fermentation broth (7 mole% ethanol) using 10-tray, semi-continuous distillation column.
Ahmad Zaini, M. A., Ibrahim, N. A.
core   +1 more source

Optimal phase‐shift control of three‐level dual‐active bridge DC–DC converter with minimum reflux power for wide voltage conversion ratio range application

open access: yesIET Power Electronics, 2020
Three-level dual-active bridge (3L-DAB) DC–DC converter under conventional phase-shift (CPS) control would produce large reflux power and current stress, especially when the voltage conversion ratio is varied in a wider range, which will lead to high ...
Li Jin, Chen Chen
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy