Process for reprocessing waste materials and the like by...

Details Process for reprocessing waste materials and the like by... Process for reprocessing waste materials and the like by...

C - Chemistry, Metallurgy

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C10G 1/00 (2006.01) B09B 3/00 (2006.01) B09C 1/08 (2006.01) C10G 1/02 (2006.01) C10G 1/08 (2006.01) C10G 47/00 (2006.01)

Patent

CA 1323319

ABSTRACT A process for reprocessing liquid products such as low-temperature tar and low-temperature coke obtained by the low-temperature carbonization of waste substances such as plastic waste, residues containing hydrocarbons, contaminated earth, biomass, residues, and the like, by liquid phase hydrogenation in the presence of a catalyst or additive, wherein internally or externally occurring low-temperature coke or soft coal coke, which can be impregnated with catalytically active metals or their salts, is used in quantities of 0.5%-wt to 5%-wt as a disposable catalyst and/or disposable catalytic carrier or additive and the pressure hydrogenation is effected under typical conditions of liquid phase hydrogenation or of a combined liquid/gas phase hydrogenation at hydrogen pressures of 20 bar to 325 bar, at temperatures of 250°C. to 500°C., and at gas/oil ratios of 100 Nm3/t to 3000 Nm3/t.

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