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98/03594 Fischer—Tropsch, hydrotreating and Superclaus catalysts


Publisher
Elsevier Science
Year
1998
Weight
207 KB
Volume
39
Category
Article
ISSN
0140-6701

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✦ Synopsis


The ultimate goal of this work is to gain knowledge of the conditions necessary for sufficient removal of tars from gasification gas. A tar-rich gas is produced through pyrolysis at 700°C and alter steam addition, the produced gas is cracked thermally and catalytically between 700 and 900°C using short contact times to allow tar decomposition to be studied. Chromatography is used to analyse the remaining tar. Tars obtained from Miscanthus and straw have been cracked using dolomite and nickel as catalysts. Analyses of tars from Miscanthus and straw are also compared with those of tars from hardwood.

The origin of the tars and their composition are found to be reflected in their origin.

98103591

Coprocessing of oil shales and petroleum residues Bibartseva, E. R. et al. Khim. Tekhnol. To@. Masel, 1997, (6). 16-17. (In Russian) Under autoclave conditions of 425°C for 1 h in the presence of 5-15 wt% oil shale, a petroleum vacuum residue is thermally cracked. The presence of the oil shale increases the gasoline and diesel fuel cuts yields to reach a maximum of 8-11 wt%.


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