Korean Journal of Chemical Engineering
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Predicting the vapor-liquid equilibrium of carbon dioxide+alkanol systems by using an artificial neural network
Korean Journal of Chemical Engineering - - 2011
Chemical reaction engineering in the chemical processing of metals and inorganic materials
Korean Journal of Chemical Engineering - Tập 20 - Trang 415-428 - 2003
In traditional chemical reaction engineering, it is possible to incorporate only the simplified aspects of fluid flow, mixing, and mass/heat transfer into the analysis of chemical reaction rates and reactor design. As a consequence of the advent of high-speed, high-capacity computing capacity, complex processes involving chemical reactions have become amenable to analysis and modeling. This has al......
Hydrophobic films for optical detection of dry carbon dioxide based on ion pairing and an amine polymer
Korean Journal of Chemical Engineering - - 2022
High temperature desulfurization over nano-scale high surface area ceria for application in SOFC
Korean Journal of Chemical Engineering - Tập 25 - Trang 223-230 - 2008
In the present work, suitable absorbent material for high temperature desulfurization was investigated in order to apply internally in solid oxide fuel cells (SOFC). It was found that nano-scale high surface area CeO2 has useful desulfurization activity and enables efficient removal of H2S from feed gas between 500 to 850°C. In this range of temperature, compared to the conventional low surface ar......
Modeling of permeate flux and mass transfer resistances in the reclamation of molasses wastewater by a novel gas-sparged nanofiltration
Korean Journal of Chemical Engineering - Tập 31 - Trang 1865-1876 - 2014
A semi-empirical model has been applied to predict the permeate flux and mass transfer resistances during the cross flow nanofiltration of molasses wastewater in flat-sheet module. The model includes laminar flow regime as well as flow in presence of gas sparging at two different gas velocities. Membrane hydraulic resistance (R
m
), osmotic pressure resistance (R
......
Effects of cellulose, hemicellulose and lignin on biomass pyrolysis kinetics
Korean Journal of Chemical Engineering - - 2020
Kinetic model for sorption of divalent heavy metal ions on low cost minerals
Korean Journal of Chemical Engineering - Tập 33 - Trang 649-656 - 2015
A mathematical model is proposed that could predict the kinetic parameters for adsorption of divalent heavy metal ions (lead, copper and zinc) onto low-cost adsorbents such as pyrophyllite and rock phosphate using experimental data. The experiments were conducted with the initial concentrations of metal ions ranging from 10mg/L to 100mg/L. The mathematical model is based on the application of the ......
Using an artificial neural network to predict carbon dioxide compressibility factor at high pressure and temperature
Korean Journal of Chemical Engineering - Tập 32 - Trang 2087-2096 - 2015
Carbon dioxide injection, which is widely used as an enhanced oil recovery (EOR) method, has the potential of being coupled with CO2 sequestration and reducing the emission of greenhouse gas. Hence, knowing the compressibility factor of carbon dioxide is of a vital significance. Compressibility factor (Z-factor) is traditionally measured through time consuming, expensive and cumbersome experiments......
Spectral dependency of Eu2+-activated silicate phosphors on the composition for LED application
Korean Journal of Chemical Engineering - Tập 23 - Trang 669-671 - 2006
An Sr2SiO4-Ba2SiO4 material system doped by Eu2+ was studied for light emitting diodes (LEDs) application. The main concern was the precise control of excitation and emission spectra for maximum light yield and color coordinate, which was carried out by changing the composition of the alkaline earth ions in host lattice. The Sr2SiO4 : Eu-Ba2SiO4 : Eu system was found to be excellent for white LED ......
The catalytic performance of methylation of naphthalene with methanol over SAPO-11 zeolites synthesized with different Si content
Korean Journal of Chemical Engineering - Tập 33 - Trang 2034-2041 - 2016
A series of SAPO-11 zeolites with different Si contents were prepared by hydrothermally synthesized method. They were characterized by ICP, XRD, SEM, FT-IR, N2 adsorption-desorption, NH3-TPD and 29Si MAS NMR, and evaluated by the methylation of naphthalene with methanol to 2,6-dimethylnaphthalene (2,6-DMN). According to XRD and SEM results, the crystallinity of SAPO-11 sample increased with increa......
Tổng số: 4,870
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