Zobrazeno 1 - 10
of 24
pro vyhledávání: '"SUJIT K. CHAKRABARTTY"'
Publikováno v:
Fuel Processing Technology. 6:177-182
The sorption of hexachloroplatinic acid on variously prepared specimens of alumina has been investigated under equilibrium and kinetic conditions. Relationships between metal dispersibility and sorption are interpreted in terms of interactions with s
Publikováno v:
Fuel Processing Technology. 4:31-41
The sorptive behavior of hydrogen and of carbon monoxide and of their mixtures on a low grade iron ore, magnetite, hematite and a commercial synthetic NH3—iron catalyst was studied in an attempt to describe their catalytic properties for Fischer-Tr
Publikováno v:
Fuel Processing Technology. 3:63-70
Adsorption isotherms have been measured for carbon dioxide on iron synthetic-NH 3 catalyst and on low-grade iron ore at six temperatures in the range 100–350°C and at pressures up to one atmosphere. The results indicate that at least two dissimila
Publikováno v:
Fuel. 53:132-135
A specific oxidation method for estimating the valence states of carbon in coal is described. The method, which is also an important tool for more generally exploring the structure of coal, is based on the fact that sodium hypochlorite is a very sele
Autor:
Sujit K. Chakrabartty, Yoshiki Sato
Publikováno v:
Journal of the Fuel Society of Japan. 61:740-745
Liquefaction behavior and chemical structure of Alberta coal, Canada have been evaluated by semicritical gas extraction and conventional autoclave experiment. The effects of catalyst (ZnCl2, SnCl2·2H2O) and solvent (toluene, CH3OH, C2H5OH, C3H7OH) o
Publikováno v:
Canadian Journal of Chemistry. 64:861-864
The analytical methods for estimating forms of sulfur in coals are reviewed on the basis of sulfur analyses of Western Canadian low sulfur subbituminous coals. The reasons for the variance in analyses are examined, and a novel method of analysis is r
Publikováno v:
Fuel. 53:240-245
Contrary to the classic (and current) view that coal is a predominantly aromatic solid, its skeletal carbon arrangements appear to be largely made up of non-aromatic structures. Recent evidence from oxidation of coal with sodium hypohalite — a spec
Autor:
Yoshiki Sato, Sujit K. Chakrabartty
Publikováno v:
Liquid Fuels Technology. 1:89-99
Experimental results of catalytic hydropyrolysis combined with solvent extraction near critical conditions of an Alberta subbituminus coal indicated a conversion of 40 wt% of coal to hydrocarbon products. The effects of catalyst and solvent on the st
Publikováno v:
Fuel Processing Technology. 5:79-89
The function of catalysts in hydrocarbon synthesis from carbon monoxide and steam has been examined by studying changes in the oxidation states, surface areas and crystallographic properties of iron catalysts during such synthesis. Evidence is presen
Autor:
Sujit K. Chakrabartty
Publikováno v:
Liquid Fuels Technology. 3:1-13
Numerous process-configurations are presently being investigated to produce hydrocarbon liquid from coal. The common step in all the variants is thermal decomposition-dissolution of the coal in a liquid hydrocarbon vehicle; this common step is genera