Veba Oel Entwicklungs-gesellschaft Mbh

Peter Wenning

Ulrich Graeser

Klaus Fuhrmann

Lothar Winckler

A method for low temperature carbonization of coal hydrogenation residues, wherein a coal hydrogenation residue is subjected to a reduced pressure distillation in a one-shaft or multishaft screw extruder, liberated gases and vapors are drawn off, and non-volatilized remaining material is subjected to low temperature carbonization in a screw extruder.

Low temperature carbonization process for coal hydrogenation residues

A method of producing synthesis gas from coal hydrogenation residues, wherein a coal hydrogenation residue is subjected to a reduced pressure distillation in a one-shaft or multishaft worm apparatus where the gases and vapors evolved are withdrawn and the unvolatilized remaining material is re-pressurized and is then introduced into a gasification reaction.

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Dorsten, Germany

Peter Wenning