1
Gunther Velling, Norbert Brungel: Process for the oxidation of hydrogen sulphide dissolved in the waste water from a coal gasification process. Rheinische Braunkohlenwerke, Howson and Howson, October 23, 1984: US04478725 (40 worldwide citation)

Hydrogen sulphide in the waste water from a coal gasification installation is subjected to an oxidizing treatment in the presence of the very fine-grain residual coke which, being washed out of the product gas, is suspended in the waste water, the residual coke particles thus serving as a catalyst. ...


2
Gunther Velling, Lothar Schrader, Hermann Schumacher: Reactor for the gasification of solid carbonaceous materials. Rheinische Braunkohlenwerke, Panitch Schwarze Jacobs & Nadel, May 21, 1985: US04518567 (2 worldwide citation)

In a reactor for gasification of solid carbonaceous materials in a fluidized bed under elevated pressure and at high temperatures using a hot gasification agent, a feed device for the gasification agent is installed in the lower part of the reactor chamber and traverses this chamber in the form of a ...


3
Gunther Velling, Wolfhard Ruddeck: Apparatus for igniting a gas mixture. Seidel Gonda Goldhammer & Panitch, December 15, 1981: US04305705 (2 worldwide citation)

Apparatus for igniting a main gas mixture to be burnt in a combustion chamber includes conduit systems for separately feeding an oxygen-bearing gas and a combustible gas into an ignition region. At least a part of at least one of the conduit systems is formed as an electrical heating resistance ther ...