Results 271 to 280 of about 6,133,601 (331)

Optimization of the reflux ratio for methanol–water stage distillation column

Research on Chemical Intermediates, 2013
In this paper, the enthalpy-concentration method was applied in order to model a steady-state continuous methanol–water mixture distillation column. This work includes three steps; first, to develop a code in MATLAB v.7.6 to apply to the mathematical model of the column. The second step is to simulate the column using HYSIS v.3.2.
B. Abolpour, Roozbeh Abolpour, A. Shamseddini, Saideh Kamyabi, Farahnaz Hamzehee   +4 more
semanticscholar   +2 more sources

Effects of reflux ratio on the anaerobic sludge and microbial social behaviors in an expanded granular sludge bed reactor: From the perspective of acyl-homoserine lactones-mediated quorum sensing.

Bioresource Technology, 2021
Han Yan, Jianzheng Li, Jia Meng, Jiuling Li, Avinash Kumar Jha, Yafei Zhang, Yiyang Fan, Xin Wang   +7 more
semanticscholar   +3 more sources

Fractional distillation of multicomponent mixtures at variable reflux ratio

Physica, 1949
Abstract A method is given for making distillation calculations at variable reflux, if the volatilities in top and bottom section have a constant ratio. The ratio's in each section, may be different. The molal heat contents of the components in the liquid and vapor state are approximated by a hyperbola in the temperature range of the distillation ...
W. R. V. Wijk
semanticscholar   +2 more sources

A Systematic Review and Meta-Analysis of the Sex Ratio for Barrett's Esophagus, Erosive Reflux Disease, and Nonerosive Reflux Disease

American Journal of Epidemiology, 2005
Barrett's esophagus is associated with reflux disease and substantially increases the risk of esophageal adenocarcinoma. The authors undertook a systematic review and meta-analysis of the sex ratio for Barrett's esophagus, erosive reflux disease (ERD), and nonerosive reflux disease (non-ERD) to compare these results with the sex ratio for esophageal ...
M B, Cook, C P, Wild, D, Forman
openaire   +4 more sources

Effect of reflux ratio on nitrogen removal in a novel upflow microaerobic sludge reactor treating piggery wastewater with high ammonium and low COD/TN ratio: Efficiency and quantitative molecular mechanism.

Bioresource Technology, 2017
Jia Meng, Jiuling Li, Jianzheng Li, Kaiwen Deng, Jun Nan, Pianpian Xu   +5 more
semanticscholar   +3 more sources

Optimization of distillation column reflux ratio for distillate purity and process energy requirements

International Journal of Basic and Applied Sciences, 2023
Recovering ethanol solutions from filtration, extraction, and stripping operations is done in the distillation column, a separation process unit in the carboxymethyl cellulose production plant. Because the ethanol produced by these techniques is produced
Fitriah Fitriah, Dessy Agustina Sari
semanticscholar   +1 more source

A Constant Reflux Ratio Distilling Head

Industrial & Engineering Chemistry Analytical Edition, 1946
L. Berg, L. K. Smith
semanticscholar   +2 more sources

Simple Electronic Reflux Ratio Timer

Analytical Chemistry, 1948
H. E. Fisher
semanticscholar   +2 more sources

Reflux ratio apparatus for fractionating columns

Journal of the Society of Chemical Industry, 1936
I. C. Smith
semanticscholar   +2 more sources

Minimum Reflux Ratio for Multicomponent Distillation

Industrial & Engineering Chemistry, 1949
J. May
semanticscholar   +2 more sources