Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Padmakar Vishnubhatt"'
Publikováno v:
Fuel Science and Technology International. 12:1019-1034
A novel reaction-extraction model for removal of organosulfur compounds from coal by the Perchloroethylene Organodesulfunzation Process has been proposed. The model treats the coal as a reactant to observe the effect of slurry composition on the rate
Publikováno v:
Fuel Science and Technology International. 12:211-228
Publikováno v:
Fuel Science and Technology International. 12:351-370
The kinetic modeling of the perchloroethylene reaction-extraction process has been carried out on the basis of batch extraction data. In this paper, modeling results of both second order as well as the pseudo-first order model has been presented. Mul
Publikováno v:
Fuel Science and Technology International. 11:1345-1365
The perchloroethylene coal cleaning process selectively removes the organic sulfur from coal via a hybrid mechanism of chemical reaction and physical solvation It was found that the chemical reaction was catalyzed by the inorganic species present in
Autor:
Sunggyu Lee, Padmakar Vishnubhatt
Publikováno v:
Fuel Science and Technology International. 11:529-539
The perchloroethylene coal refining process utilizes perchloroethylene (PCE) as its solvent in all phases of the precombustion desulfurization process, including wet grinding, organic sulfur removal, gravitational separation of pyrites and mineral ma
Autor:
Sunggyu Lee, Padmakar Vishnubhatt
Publikováno v:
Petroleum Science and Technology. 11:1771-1790
Most of the coal treatment processes involve changes in hydrocarbon content and calorific values of the treated coals. Depending upon the end-use of desulfurized coal, its hydrocarbon content as well as its calorific value and combustion efficiency a
Publikováno v:
Petroleum Science and Technology. 11:1819-1841
Desulfurization of coal by perchloroethylene extraction is based on a complex and hybrid system of chemical reaction and solvent extraction. Batcb kinetic studies have shown that the reaction follows a pseudo-first order rate kinetics. The batch kine
Publikováno v:
Fuel Science and Technology International. 11:507-527
The perchloroethylene extraction process has proven to be an effective pre- combustion coal desulfurization process which offers a complete process package including wet grinding, organic sulfur removal, pyrite and mineral matter separation, solvent
Autor:
Padmakar Vishnubhatt, Sunggyu Lee
Publikováno v:
Fuel Science and Technology International. 11:1517-1536
The Perchloroethylene coal cleaning process effectively removes both organic and inorganic forms of sulfur in coal. Complete recyclability of the solvent is the key to both economic and environmental issues concerning the use of perchloroethylene in
Autor:
Padmakar Vishnubhatt, Sunggyu Lee
Publikováno v:
Fuel Science and Technology International. 11:897-907
Pyritic sulfur is removed from raw, high sulfur coal by gravitational separation using a suitable solvent, or heavy medium. This is possible due to the inherent difference in the specific gravity of clean coal and the mineral matter in it. The effect