Results 21 to 30 of about 465,191 (305)

Gasification of coal-derived chars in synthesis gas mixtures under intraparticle mass-transfer-controlled conditions [PDF]

open access: yes, 1986
A model has been formulated to describe the quasi-steady-state gasification of coal-derived chars in gas mixtures where both the reactants carbon dioxide and steam, and the gasification products carbon monoxide and hydrogen are present.
Bliek, A.   +2 more
core   +2 more sources

Saponification reaction system: a detailed mass transfer coefficient determination

open access: yesActa Chimica Slovenica, 2015
The saponification of an aromatic ester with an aqueous sodium hydroxide was studied within a heterogeneous reaction medium in order to determine the overall kinetics of the selected system. The extended thermo-kinetic model was developed compared to the
Darja Pečar, Andreja Goršek
doaj   +1 more source

Numerical calculation of simultaneous mass transfer of two gases accompanied by complex reversible reactions [PDF]

open access: yes, 1980
A discretization technique is described, which makes it possible to calculate numerically mass transfer behaviour between two media in which complex chemical reactions occur.
Beckum, F.P.H. van   +3 more
core   +4 more sources

Analysis and three-dimensional modeling of vanadium flow batteries [PDF]

open access: yes, 2014
This study presents 1.) a multi-dimensional model of vanadium Redox Flow Batteries (RFB); 2.) rigorous explanation of porelevel transport resistance, dilute solution assumption, and pumping power; and 3.) analysis of time constants of heat and mass ...
Cho, SC, Wang, Y
core   +1 more source

Ultrasound to Enhance a Liquid–Liquid Reaction [PDF]

open access: yes, 2010
Liquid–liquid mass transfer with ultrasound was investigated experimentally during the hydrolysis of n-amyl acetate. Power ultrasound is supposed to improve the yield and kinetics of such multiphase chemical reactions thanks to the mechanical effects of ...
Abismaï   +7 more
core   +2 more sources

Carbon Dioxide Absorption in Packed Column in Non-Newtonian Fluid

open access: yesTikrit Journal of Engineering Sciences, 2010
Absorption of carbon dioxide into carbonate solution (Na2CO3) with PAM (non-Newtonian fluid) has been performed in a countercurrent packed column (0.075m i.d. ×1.25 m height) packed with glass Raschig rings (1×1cm) to a depth of 1m.
Farah T. Jasim   +2 more
doaj   +1 more source

Mass transfer enhancement of tuna brining with different NaCl concentrations assisted by ultrasound

open access: yesUltrasonics Sonochemistry, 2022
The influence of different NaCl concentrations (2.5, 5, 7.5 and 10% (w/w)) on the mass transfer kinetics of tuna during brining process with and without ultrasound assistance was evaluated.
Yao Yao   +4 more
doaj   +1 more source

On the kinetics between CO2 and alkanolamines both in aqueous and non-aqueous solutions—II. Tertiary amines [PDF]

open access: yes, 1988
The reaction between CO2 and tertiary alkanolamines (MDEA, DMMEA, TREA) has been studied in aqueous solutions at various temperatures. Also the absorption of CO2 in a solution of MDEA in ethanol has been studied.
Swaaij, W.P.M. van, Versteeg, G.F.
core   +3 more sources

The kinetics of the reaction between CO2 and diethanolamine in aqueous ethyleneglycol at 298 K: a viscous gas—liquid reaction system for the determination of interfacial areas in gas—liquid contactors [PDF]

open access: yes, 1990
The reaction between CO2 and diethanolamine (DEA) in aqueous ethyleneglycol (ETG) at 298 K has been studied over the complete composition range. The application of this reaction as a viscous gas—liquid system for the determination of interfacial areas in
Morssinkhof, R.W.J.   +2 more
core   +2 more sources

Kinetics of Propane Hydrate Formation in Agitated Reactor: A Mass Transfer Approach [PDF]

open access: yesIranian Journal of Chemical Engineering, 2017
Understanding the kinetics of gas hydrate formation is essential to model and predict the hydrate formation (or dissociation) process. In the present paper, we investigated the formation of pure propane gas hydrate as a former gas.
P. Goodarzi, V. Mohebbi
doaj  

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