Maschinenfabrik Buckau R. Wolf Aktiengesellschaft

Fried Krupp

Huftung Fried Krupp Gesellschaft MIT Beschrankter

Heinz Houben

Hans U Petzoldt

Joachim Stegemann

Method and apparatus are provided for simultaneously producing various forms of alcohol, including ethanol, which can likewise be withdrawn from the apparatus simultaneously. To this end, successive columns in the individual processing stages, each of which includes distillation, rectification, purification and dehydration, are connected in parallel for product flow but in series for energy flow and conservation.

Process for producing ethanol

Apparatus is provided for simultaneously producing various forms of alcohol, including ethanol, which can likewise be withdrawn from the apparatus simultaneously. To this end, successive columns in the individual processing stages, each of which includes distillation, rectification, purification and dehydration are connected in parallel for product flow but in series for energy flow and conservation.

Apparatus for producing ethanol

A centrifuge for separating massecuite into solid and liquid fractions has a rotatable drum which includes a circumferential wall having a small and uniform thickness, and top and bottom walls. Sieves for separating massecuite into its constituent liquid and solid fractions are located in an inner chamber which is bounded by the walls of the drum. At least two rows of holes are formed in the circumferential walls through which the liquid fraction is discharged whereas the solid fraction retains in the inner chamber. The drum is reinforced in the regions of the top and bottom walls, for instance by means of two ring members which are fitted on the circumferential wall adjacent to the top and bottom walls. On the other hand, it can be reinforced by means of inclination of the top wall and/or the bottom wall to a horizontal plane. It is also possible to provide the reinforcing ring member adjacent to the bottom wall and to incline the top wall of the drum, and vice versa.

Centrifuge for separating massecuite

A method for dewatering froth fines obtained during the separation of coal, in which a discontinuously operating sieve scraping centrifuge is filled with the froth fines, the mixture is centrifuged at a low rotational speed to remove a major portion of the liquid and to deposit a layer of solid material which acts as a filter aid, and the remaining mixture is then centrifuged at a high rotational speed. The first run-off is reintroduced into the centrifuge to reduce its high solids content.

Growing community of inventors

Monchen-Gladbach, Germany

Heinz Houben