Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Vivek R. Pradhan"'
Publikováno v:
Energy & Fuels. 8:886-889
X-ray photoelectron spectroscopy (XPS) has been used to investigate the surface and bulk characteristics of residue from liquefaction of Blind Canyon coal mixed with an iron-based catalyst. The liquefaction of Blind Canyon coal was investigated at th
Publikováno v:
Fuel Processing Technology. 34:207-215
X-ray photoelectron spectroscopy (XPS) has been used to study the surface characteristics of six coal liquefaction catalysts and a catalyst impregnated Illinois #6 coal sample. The surface composition was determined and compared with the composition
Publikováno v:
Energy & Fuels. 7:446-454
In previous papers, we reported on the catalytic activity of finely divided sulfated iron oxides for the direct liquefaction of coals containing between 0.2 and 2.5 wt% of pyrite (Energy Fuels, 1991, 5, 497-507). The addition of small amounts of sulf
Publikováno v:
Industrial & Engineering Chemistry Research. 31:2051-2056
This paper describes the kinetics of the direct liquefaction of Wyodak coal using tetralin and 1000 psig (cold) H[sub 2] were experimentally measured and mathematically modeled. Experiments were carried out in a 27-cm[sup 3] horizontally shaken autoc
Publikováno v:
Fuel Processing Technology. 29:199-208
The catalytic activity of various iron compounds was studied using a model compound, 4-(1-naphthylmethyl)bibenzyl, which exhibits distinct decomposition patterns for radical, ion-radical or acidic environments. It was found that selective carbon clea
Publikováno v:
Energy & Fuels. 5:497-507
The physicochemical properties and catalytic activities of an intriguing clans of compounds based on iron and tin oxides treated with varying amounts of sulfate anion and employed for the direct liquefaction of three Argonne coals of varying ranks ar
Publikováno v:
Fuel. 70:64-73
The concept of using an acid coal depolymerization catalyst with a balancing hydrogenation/ hydrogenolysis function to prevent retrogressive reactions forms the basis of this work. A catalytic system based on combining the superacid CF3SO3H (triflic