Patent ID: 6331573
Filing Date: 2001-12-18
Classification: C10G,Y02P

Abstract:
An integrated process for preparing liquid fuels, the process comprising:(a) subjecting syngas with a hydrogen/carbon monoxide ratio of between about 0.5 and 1.0 to Fischer-Tropsch reaction conditions where the catalyst used for the Fischer-Tropsch reaction is one which provides low to moderate chain growth probabilities and has an alpha value between 0.6-0.8;(b) optionally removing water and/or C.sub.5 + hydrocarbons from the product stream;(c) subjecting the product from step (a) or (b) to Fischer-Tropsch reaction conditions where the catalyst used for the Fischer-Tropsch reaction is one which provides high chain growth probabilities and has an alpha value above 0.8, where the hydrogen/carbon monoxide ratio is between about 1.0 and 2.0; and(d) isolating the product of the reaction.