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......
Effects of cellulose, hemicellulose and lignin on biomass pyrolysis kinetics
Korean Journal of Chemical Engineering - - 2020
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......
Effect of air gap interval on polyvinylidene fluoride hollow fiber membrane spinning for CO2 and CH4 gas separation
Korean Journal of Chemical Engineering - Tập 39 - Trang 2499-2504 - 2022
Improper control of air gap interval during hollow fiber membranes (HFMs) spinning may lead to structural defects such as inner lumen deformations and macrovoids. In the current work, PVDF HFMs were prepared by manipulating air gap intervals at 5, 10, 15, 20, and 25 cm, using dry-wet spinning mechanism. The changes in its properties, including contact angle, mechanical strength, and most important......
Quantitative characterization of intact sialylated O-glycans with MALDI-MS for protein biotherapeutics
Korean Journal of Chemical Engineering - Tập 35 - Trang 1462-1467 - 2018
For validating O-glycosylation of protein biotherapeutics, we presented a quantitative O-glycomics method which is based on the neutralization of sialic acids, the specific release of O-glycans, and the introduction of permanent positive charge followed by quantitative MALDI-MS analysis. This method shows excellent technical reproducibility, linearity and sensitivity. In addition, it enables the q......
Monomer concentration effect on the phase behavior of poly(propyl acrylate) and poly(propyl methacrylate) with supercritical CO2 and C2H4
Korean Journal of Chemical Engineering - Tập 19 - Trang 126-131 - 2002
Experimental cloud-point data to temperature of 186 °C and pressure of ~2,500 bar are presented for ternary mixtures of poly(propyl acrylate)(PPA)-CO2-propyl acrylate (PA) PPA-C2H4-PA and poly(propyl methacrylate) (PPMA)-CO2-propyl methacrylate (PMA) systems. Cloud-point pressures of PPA-CO2-PA system were measured in the temperature range of 32 °C to 175 dgC and to pressures as high as 2,070 bar ......
Tổng số: 4,870
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