The Experts below are selected from a list of 6846 Experts worldwide ranked by ideXlab platform
Yoshikazu Kano - One of the best experts on this subject based on the ideXlab platform.
-
phase equilibrium study for the separation of ethanol water solution using subcritical and supercritical Hydrocarbon Solvent extraction
Fluid Phase Equilibria, 1993Co-Authors: Hirotoshi Horizoe, Tetsuya Tanimoto, Itsuo Yamamoto, Yoshikazu KanoAbstract:Horizoe, H., Tanimoto, T., Yamamoto, I. and Kano, Y., 1993. Phase equilibrium study for the separation of ethanol-water solution using subcritical and supercritical Hydrocarbon Solvent extraction. Fluid Phase Equilibria, 84: 297-320. In order to dehydrate fermented or synthetic crude ethanol, phase equilibria for subcritical and supercritical Solvents (CO2, C2,H4, C3H6, C3H8, n-C4H10 and CO2 + C3H8) and ethanol aqueous solution (ethanol concentrations of 2–99 wt.%) were measured. For these Solvents the selectivity and solubility of ethanol under different conditions were investigated. We confirmed experimentally that ethanol-water solution can be separated completely by supercritical and subcritical propane or proylene Solvent extraction, as has been predicted previously using the group contribution equation of state model proposed by Brignole et al. (Brignole, E.A., Skjold-Jorgensen, S. and Fredenslund, A., 1984. Ber. Bunsenges. Phys. Chem., 88: 801. Brignole, E.A., Anderson, P.M. and Fredenslund, A., 1987. Ind. Eng. Chem. Res. 26: 254-261).
Mohammad Saviz Baktash - One of the best experts on this subject based on the ideXlab platform.
-
enhancement in triethylene glycol teg purity via Hydrocarbon Solvent injection to a teg water system in a batch distillation column
Energy & Fuels, 2011Co-Authors: K Paymooni, M R Rahimpour, Sona Raeissi, Mohsen Abbasi, Mohammad Saviz BaktashAbstract:Triethylene glycol (TEG) is one of the most important liquid desiccants in the natural gas dehydration industry. In enhanced TEG regeneration processes, liquid Hydrocarbons such as toluene and isooctane are added to the stripping column of natural gas dehydration unit in order to boost water volatility and regenerate TEG to higher purity. In this study, isooctane and toluene were selected as liquid Hydrocarbon Solvents and the effect of these two Solvents on TEG purity and the outlet water concentration from the reboiler of tray column were experimentally investigated and mathematically modeled. The vapor–liquid equilibrium calculations were performed using the NRTL activity coefficient model and ideal gas equation of state to represent the liquid and vapor phases, respectively. Moreover, a comprehensive model was used to determine the liquid molar flow rate on each tray where it changed with time and tray by tray. The impact of various concentrations of Solvents and different operating conditions (total ...
Charles O'hara - One of the best experts on this subject based on the ideXlab platform.
-
Structural and metal–halogen exchange reactivity studies of sodium magnesiate biphenolate complexes
Dalton Transactions, 2020Co-Authors: Callum Yeardley, Alan Kennedy, Philippe Gros, Sabrina Touchet, Michael Fairley, Ross Mclellan, Antonio Martínez-martínez, Charles O'haraAbstract:Bimetallic sodium magnesiates have been employed in metal-halogen exchange for the first time. Utilising the racemic phenoxide ligand 5,5´,6,6´-tetramethyl-3,3´-di-tert-butyl-1,1´-biphenyl-2,2´-diol [(rac)-BIPHEN-H 2 ], the dialkyl sodium magnesiates [(rac)-BIPHEN]Na 2 MgBu 2 (TMEDA) 2 3 and [(rac)-BIPHEN]Na 2 MgBu 2 (PMDETA) 2 4 have been synthesised. Both 3 and 4 can be easily prepared through co-complexation of din -butylmagnesium with the sodiated (rac)-BIPHEN precursor which can be prepared in situ in Hydrocarbon Solvent. Prior to the main investigation, synthesis of the sodiated precursor [BIPHEN] 2 Na 4 (THF) 4 1 was explored in order to better understand the formation of sodium magnesiates utilising the dianionic (rac)-BIPHEN ligand as the parent ligand. In addition, a BIPHEN-rich sodium magnesiate [BIPHEN] 2 Na 2 Mg(THF) 4 2 was prepared and characterised, and its formation was rationalised. Complex 1 and 4 have also been fully characterised in both solid and solution state. In terms of onward reactivity, 3 and 4 have been tested as potential exchange reagents with aryl and heteroaryl iodides to produce aryl and heteroaryl magnesium phenoxides utilising toluene as a non-polar Hydrocarbon Solvent. Complex 3 reacted smoothly to give a range of aryl and heteroaryl magnesium phenoxides, whilst 4's reactivity is more sluggish.
Hirotoshi Horizoe - One of the best experts on this subject based on the ideXlab platform.
-
phase equilibrium study for the separation of ethanol water solution using subcritical and supercritical Hydrocarbon Solvent extraction
Fluid Phase Equilibria, 1993Co-Authors: Hirotoshi Horizoe, Tetsuya Tanimoto, Itsuo Yamamoto, Yoshikazu KanoAbstract:Horizoe, H., Tanimoto, T., Yamamoto, I. and Kano, Y., 1993. Phase equilibrium study for the separation of ethanol-water solution using subcritical and supercritical Hydrocarbon Solvent extraction. Fluid Phase Equilibria, 84: 297-320. In order to dehydrate fermented or synthetic crude ethanol, phase equilibria for subcritical and supercritical Solvents (CO2, C2,H4, C3H6, C3H8, n-C4H10 and CO2 + C3H8) and ethanol aqueous solution (ethanol concentrations of 2–99 wt.%) were measured. For these Solvents the selectivity and solubility of ethanol under different conditions were investigated. We confirmed experimentally that ethanol-water solution can be separated completely by supercritical and subcritical propane or proylene Solvent extraction, as has been predicted previously using the group contribution equation of state model proposed by Brignole et al. (Brignole, E.A., Skjold-Jorgensen, S. and Fredenslund, A., 1984. Ber. Bunsenges. Phys. Chem., 88: 801. Brignole, E.A., Anderson, P.M. and Fredenslund, A., 1987. Ind. Eng. Chem. Res. 26: 254-261).
K Paymooni - One of the best experts on this subject based on the ideXlab platform.
-
enhancement in triethylene glycol teg purity via Hydrocarbon Solvent injection to a teg water system in a batch distillation column
Energy & Fuels, 2011Co-Authors: K Paymooni, M R Rahimpour, Sona Raeissi, Mohsen Abbasi, Mohammad Saviz BaktashAbstract:Triethylene glycol (TEG) is one of the most important liquid desiccants in the natural gas dehydration industry. In enhanced TEG regeneration processes, liquid Hydrocarbons such as toluene and isooctane are added to the stripping column of natural gas dehydration unit in order to boost water volatility and regenerate TEG to higher purity. In this study, isooctane and toluene were selected as liquid Hydrocarbon Solvents and the effect of these two Solvents on TEG purity and the outlet water concentration from the reboiler of tray column were experimentally investigated and mathematically modeled. The vapor–liquid equilibrium calculations were performed using the NRTL activity coefficient model and ideal gas equation of state to represent the liquid and vapor phases, respectively. Moreover, a comprehensive model was used to determine the liquid molar flow rate on each tray where it changed with time and tray by tray. The impact of various concentrations of Solvents and different operating conditions (total ...