Effects of salt on the temperature and pressure responsive properties of poly( N -vinylisobutyramide) aqueous solutions

1998 ◽  
Vol 276 (6) ◽  
pp. 529-533 ◽  
Author(s):  
K. Suwa ◽  
K. Yamamoto ◽  
M. Akashi ◽  
K. Takano ◽  
N. Tanaka ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Temperature And Pressure

CO2 Fixation Using MEA and CaCl2 Aqueous Solutions

2014 ◽  
Vol 541-542 ◽  
pp. 130-133
Author(s):  
Feng Liu ◽  
Zhi Xin Li ◽  
Dong Fu
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Calcium Chloride ◽  
Ionic Form ◽  
Temperature And Pressure

The saturated CO2 loadings in monoethanolamine (MEA) aqueous solutions at normal temperature and pressure were measured. The calcium chloride (CaCl2) aqueous solution was added into the CO2 loaded MEA aqueous solution to converse the ionic form of CO2 (CO32-) to CaCO3 precipitation. The influence of the addition of CaCl2 on the CO2 fixation was illustrated.

scholarly journals Effect of Support on the Performance of CoMoRe Catalyst in Thiophene and Benzothiophene Hydrodesulfurization

2019 ◽  
Vol 70 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Rami Doukeh ◽  
Mihaela Bombos ◽  
Daniela Popovici ◽  
Minodora Pasare ◽  
Ion Bolocan
Keyword(s):  
Aqueous Solutions ◽  
Pore Size Distribution ◽  
Pore Volume ◽  
Impregnation Method ◽  
Acidic Properties ◽  
Dimethyl Disulphide ◽  
Temperature And Pressure ◽  
Benzothiophene Hydrodesulfurization ◽  
Effect Of Support ◽  
Selection Of

This work is aimed at selection of a suitable support for CoMoRe catalyst in hydrodesulfurization (HDS) of thiophenes. g-Al2O3 and g-Al2O3-HMS were used as a support for CoMoRe catalyst with 4%Co, 8%Mo and 0.5%Re loading. The metal loading was incorporated by using the pore volume impregnation method, employing aqueous solutions of cobalt (II) nitrate, ammonium molibdate and rhenium (VII) oxide. The catalysts were sulfided with dimethyl disulphide at 250 �C for 10 h and finally tested in the HDS reaction of thiophene and benzothiophene in different temperature and pressure conditions. The catalysts were characterized by determining the adsorption isotherms, the pore size distribution and the acid strengt, FTIR, XRD and S EM. T he catalyst supported on g - Al2O3 displayed higher activity than catalyst supported on g-Al2O3-HMS. The results suggest that activity is favoured by the suitable textural and acidic properties of the support.

Salt solubility and deposition in high temperature and pressure aqueous solutions

AIChE Journal ◽  
2004 ◽  
Vol 50 (9) ◽  
pp. 2038-2049 ◽  
Author(s):  
Marc Hodes ◽  
Peter Griffith ◽  
Kenneth A. Smith ◽  
Wilbur S. Hurst ◽  
Walter J. Bowers ◽  
...  
Keyword(s):  
High Temperature ◽  
Aqueous Solutions ◽  
High Temperature And Pressure ◽  
Temperature And Pressure
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