Ruhrol GmbH

H.Lowry, Chemistry of Coal Utilization , Vols 1 2, Wiley, NY (1945) 3)H.H.Lowry H.J.Rose, USBurMinesInfoCirc 7420 (1947) (Description of Pott-Broche process and the plant of Ruhrol GmbH, Bottrop-Welheim, Ger-... 

At 700 atm. pressure, a fuller s earth-supported catalyst developed by the Ruhrol GmbH was used. At the Welheim Plant middle oil obtained from liquid-phase hydrogenation of coke-oven tar pitch was converted into gasoline with an aromatics content of 45%. The catalyst contained, in addition to fuller s earth, hydrofluoric acid, Cr203, ZnO, sulfur and 0.5% molybdenum. 

Welhcim west Germany near Gelsenkirchen Ruhrol GmbH established in 1935 by Mathias Stinnes July 1936 1937 coke oven tar pitch... 

---