Abstract: A process for the removal of dust from gas that has been produced by low temperature carbonization is provided. The process separates solid particles by means of washing oil in a spray washer that also cools the gases that have been produced by low temperature carbonization. The process includes intensively wetting the gases that have been produced with oils that have been condensed out of the stream of the gas. At least a first and second washing stage is provided in the spray washer. The mass flow comprising the washing oil and condensate is collected in the second washing stage and subdivided. Thereafter, the mass flow is fed to both the first and second washing stage as recirculated and recycled washing oil.

Abstract: A process for the production of reformer feed and heating or diesel oil from coal which comprises introducing a pulverized coal-oil slurry together with a hydrogenation gas into a liquid-phase hydrogenation stage; remoping solids-containing residue from the discharge from the liquid phase hydrogenation stage, cooling the resulting residue-free volatile coal-oil fraction from the discharge and, if necessary, removing a slurry oil fraction therefrom before feeding the volatile coal-oil fraction to a gas-phase hydrogenation stage; introducing fresh hydrogen which is substantially free of contaminants into the gas-phase hydrogenation stage together with the volatile coal-oil fraction, the fresh hydrogen introduced into the gas-phase hydrogenation stage constituting the entire amount of hydrogen required for the process; and utilizing the waste-gas from the gas-phase hydrogenation as the hydrogenation gas for the liquid-phase hydrogenation.