Results 31 to 40 of about 10,246,522 (289)
Gas Hold‐Up in Stirred Tank Reactors in the Presence of Inorganic Electrolytes [PDF]
The Canadian Journal of Chemical Engineering, 2002 AbstractGas hold‐up (ϵG) in air‐aqueous electrolyte solutions in stirred tank reactors (STR) is correlated using a relative gas dispersion parameter, N/Ncd and a surface tension factor (STF), (c/z)(dδ/dc)2. For electrolyte concentration below transition concentration (ct) a single correlation in the form of ϵG = f(N/Ncd, vvm, STF) shows good agreement ...
Yawalkar, Archis A. +3 more
openaire +2 more sources
Gas Hold-Up and Volumetric Liquid-Phase Mass Transfer Coefficient In Solid-Suspended Bubble Columns With Draught Tube [PDF]
Engineering and Technology Journal, 2010 The solid suspended-bubble columns with draught tube are widely used as a threephaseslurry reactor in industrial chemical process such as absorption, biochemicalreactions, coal liquefaction. etc.
Ali Abdul-Rahman N. Jasim Alazzi
doaj +1 more source
Mass transfer in bubble column for industrial conditions—effects of organic medium, gas and liquid flowrates and column design [PDF]
, 2005 Most of available gas–liquid mass transfer data in bubble column have been obtained in aqueous media and in liquid batch conditions, contrary to industrial chemical reactor conditions.
Billet, Anne-Marie +4 more
core +1 more source
Physical and mathematical modeling of phenomena proceeding with gas – powder two phase flow through moving packed bed in metallurgical shaft furnaces [PDF]
Metalurgija, 2011 Physical and chemical processes in shaft furnaces proceeds in counter – current system. Reacting gas carrying powders flows up in packed bed of descending metallurgical materials. In this system the problem of bed particles hanging up appears.
B. Panic
doaj
Computation, 2017 A novel computational fluid dynamics-population balance model (CFD-PBM) for the simulation of gas mixing in activated sludge (i.e., an opaque non-Newtonian liquid) in a bubble column is developed and described to solve the problem of measuring the ...
Le Wang +3 more
doaj +1 more source
Studies on gas hold-up in gas-liquid spouted vessel.
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1976 In a gas-liquid spouted vessel, where power is supplied from a pump to water and gas is introduced at a nozzle attached at the bottom of the vessel, gas bubbles are finely broken at the nozzle and dispersed to the vessel. Gas hold-up in the gas-liquid spouted vessel rapidly increases with increasing liquid flow rate and easily exceeds twice the gas ...
NISHIKAWA, MASABUMI +4 more
openaire +2 more sources
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
Al-Khawarizmi Engineering Journal, 2009 The bubble columns are widely used as a two or three phase reactor in industrial chemical process such as absorption, biochemical reactions, coal liquefaction, etc.
Ali Abdul-Rahman N. Jasim
doaj +2 more sources
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source
Fluids, 2023 Experimental studies have revealed that the introduction of a small amount (0.5% by volume) of permanent and chemically inert gas bubbles leads to the intensification of droplets disintegration in a liquid–liquid system (emulsification) in a pulsating ...
Maksim P. Vasilev, Rufat Sh. Abiev
doaj +1 more source