Results 31 to 40 of about 77,758 (332)
Methods for synthesizing diethyl carbonate from ethanol and supercritical carbon dioxide by one-pot or two-step reactions in the presence of potassium carbonate [PDF]
, 2009 Carbon dioxide sequestration was studied by synthesizing diethyl carbonate (DEC) from ethanol and CO2 under supercritical conditions in the presence of potassium carbonate as a base. The co-reagent was ethyl iodide or a concentrated strong acid.
Gasc, Fabien +2 more
core +1 more source
Chemical Engineering Transactions, 2017 Green supercritical carbon dioxide extraction technology has gained enormous interest especially in the application of extraction of natural products. The use of carbon dioxide as solvent in the extraction process is very advantageous as carbon dioxide ...
M.A. Mohamed Zahari, L.M. Salleh
doaj +1 more source
Sterilization of microorganisms with supercritical carbon dioxide. [PDF]
Agricultural and Biological Chemistry, 1987 The sterilizing effect of supercritical carbon dioxide (SC-C02) is described as compared with gaseous C02(G-C02) and liquid C02(L-C02). Baker’s yeast, Escherichia coli, Staphylococcus aureus and conidia of Aspergillus niger were sterilized by treating with SC-C02 at 200 atm and 35°C when the water content of each microorganism was 70 ~ 90%.
Masamichi Kamihira +2 more
openaire +3 more sources
Continuous Formation of Limonene Carbonates in Supercritical Carbon Dioxide
Organic Process Research & Development, 2022 We present a continuous flow method for the conversion of bioderived limonene oxide and limonene dioxide to limonene carbonates using carbon dioxide in its supercritical state as a reagent and sole solvent. Various ammonium- and imidazolium-based ionic liquids were initially investigated in batch mode.
Mikšovsky, Philipp +5 more
openaire +2 more sources
Yuanzineng kexue jishu, 2023 This paper presents a cold-end optimization design study of a nuclear energy power conversion system in the context of low-temperature heat sink applications.
WANG Dianle;HUANG Yanping;YIN Kaikai;LIU Minyun;ZHOU Yuan;LAI Xiangpeng;LI Yong
doaj
Characterization of wheat germ oil extracted by liquid and supercritical carbon dioxide.
Grasas y Aceites, 1997 In this work the quality of wheat germ oil obtained by extraction with liquid and supercritical carbon dioxide was studied. At the optimum operating conditions, the yield of supercritical extraction is similar to the conventional extraction by organic ...
A. Molero Gómez +2 more
doaj +1 more source
Experimental Study on Prototype of Printed Circuit Heat Exchanger
Frontiers in Energy Research, 2022 The printed circuit heat exchanger (PCHE) is the key equipment of the supercritical carbon dioxide Brayton cycle applied to sodium cooled fast reactor.
Dongxu Zhang +3 more
doaj +1 more source
Cleaner Routes for Friedel-Crafts Acylation [PDF]
, 2010 Friedel-Crafts acylation is among the most fundamental and useful reactions to yield aromatic ketones but it is one of the less acceptable in terms of unwanted polluting by-products or atom economy because of the overconsumption of catalyst which is used
Aribert, Nicolas +4 more
core +1 more source
Scientific Reports, 2022 This study introduces a universal correlation based on the modified version of the Arrhenius equation to estimate the solubility of anti-cancer drugs in supercritical carbon dioxide (CO2). A combination of an Arrhenius-shape term and a departure function
Fardad Faress +7 more
doaj +1 more source
Supercritical Carbon DioxideâBased Sterilization of Decellularized Heart Valves
JACC: Basic to Translational Science, 2017 Summary: Sterilization of grafts is essential. Supercritical carbon dioxide, electrolyzed water, gamma radiation, ethanol-peracetic acid, and hydrogen peroxide techniques were compared for impact on sterility and mechanical integrity of porcine ...
Ryan S. Hennessy, MD +7 more
doaj +1 more source