Results 1 to 10 of about 6,879 (187)

Diffusion of hydrocarbons diluted in supercritical carbon dioxide. [PDF]

Sci Rep, 2023
AbstractMutual diffusion of six hydrocarbons (methane, ethane, isobutane, benzene, toluene or naphthalene) diluted in supercritical carbon dioxide ($${\hbox {CO}}_{2}$$ CO 2 ) is studied by molecular dynamics simulation near the Widom line, i.e., in the ...
Saric D, Guevara-Carrion G, Gaponenko Y, Shevtsova V, Vrabec J.   +4 more
europepmc   +4 more sources

Synthesis of dimethyl carbonate in supercritical carbon dioxide [PDF]

Brazilian Journal of Chemical Engineering, 2006
The reactivity of carbon dioxide with methanol to form dimethyl carbonate was studied in the presence of the n-butylmethoxytin compounds n-Bu3SnOCH3, n-Bu2Sn(OCH3)2 , and [n-Bu2(CH3O)Sn]2 O. The reaction occurred under solventless conditions at 423 K and was produced by an increase in CO2 pressure.
Danielle Ballivet-Tkatchenko, Rosane Angélica Ligabue, Rosane Angélica Ligabue, Laurent Plasseraud   +3 more
openaire   +6 more sources

Organosilicone Compounds in Supercritical Carbon Dioxide

Polymers, 2022
This review considers the key advantages of using supercritical carbon dioxide as a solvent for systems with organosilicon compounds. Organosilicon polymeric materials synthesis as well as the creation and modification of composites based on them are discussed.
Victor E. Sizov, Vadim V. Zefirov, Marat O. Gallyamov, Aziz M. Muzafarov   +3 more
openaire   +2 more sources

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, Masayuki Taniguchi, Takeshi Kobayashi   +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, Horn, Elias N., Naghdi, Shaghayegh, Eder, Dominik, Schnürch, Michael, Bica-Schröder, Katharina   +5 more
openaire   +2 more sources

Solubility of Tridodecylamine in Supercritical Carbon Dioxide [PDF]

Journal of Chemical & Engineering Data, 2008
Using a continuous flow apparatus, the solubility of tridodecylamine (TDA) in supercritical CO2 (scCO2) has been measured at temperatures of (308.1, 318.1, and 328.1) K in the pressure range of (8.0 to 40.0) MPa and a flow rate of (150 ± 10) mL·min−1.
Mohammad Kaboudvand, Hassan S. Ghaziaskar   +1 more
openaire   +2 more sources

Solubility of Acetophenone in Supercritical Carbon Dioxide [PDF]

The Open Chemical Engineering Journal, 2016
The solubility data of acetophenone in supercritical carbon dioxide (scCO2) were measured using a static method at several temperatures (313.15, 323.15, 333.15, and 343.15K) and pressures ranging from10 MPa to 28 MPa. The density based models (Chrastil and Del valle– Aguilera models) and the Peng-Robinson equation of state (PR-EOS) with quadratic and ...
Dwi, M.Y, Julian, Julian J, Putro, J.N, Nugraha, A.T, Ju, Y.-H, Indraswati, N, Ismadji, S.   +6 more
openaire   +3 more sources

Solubility of lumiracoxib in supercritical carbon dioxide

Scientific Reports
AbstractThis study aims to use a static-based solubility method for measuring the solubility of lumiracoxib at a temperature of 308–338 K and pressure of 120–400 bar for the first time. The obtained solubility data for lumiracoxib is between 4.74 × 10−5 and 3.46 × 10−4 (mole fraction) for the studied ranges of pressure and temperature.
Firas H. Albadran, Nabeel K. Abbood, Mohammad A. Al-Mayyahi, Seyednooroldin Hosseini, Mohammed S. Abed   +4 more
openaire   +3 more sources

Enzymatic Interesterification in Supercritical Carbon Dioxide

Agricultural and Biological Chemistry, 1988
An enzymatic reaction with supercritical carbon dioxide (SCCO2) as the reaction medium was investigated. Lipase could catalyze the batch type reaction of hydrolysis and interesterification (acidolysis) in SCCO2 at 50°C and 29.4 MPa. The time course of interesterification was influenced by the water content as well as by the kind of reaction medium. The
Kozo Nakamura, Toshimasa Yano, Young Min Chi   +2 more
openaire   +3 more sources

Chemical reactions in supercritical carbon dioxide [PDF]

Arkivoc, 2003
This review presents recent advances of chemical reactions in supercritical carbon dioxide in our group. The reactions include carbonylation, oxidation, radical reaction, polymerization, etc.
Chen Ming-Cai, Zou Gang, Jiang Huan-Feng
openaire   +3 more sources