초록 ▼

Cellulosic materials are converted to hydrocarbons by hydrolyzing cellulosic materials to produce a mixture of fermentable sugars and unfermentable furfural, fermenting the mixture to obtain a fermented mixture containing fermented product and unfermented furfural and contacting the fermented mixtur

Cellulosic materials are converted to hydrocarbons by hydrolyzing cellulosic materials to produce a mixture of fermentable sugars and unfermentable furfural, fermenting the mixture to obtain a fermented mixture containing fermented product and unfermented furfural and contacting the fermented mixture with a highly siliceous crystalline zeolite catalyst under conditions of temperature and pressure to convert the fermented mixture to a hydrocarbon-containing product. Preferably, an oxygenated organic compound such as methanol, ethanol or dimethylether is mixed with the fermented mixture prior to contact with the catalyst.

대표청구항 ▼

A process for converting cellulosic materials to hydrocarbons which comprises (a), (b), (c), and (d) wherein (a) comprises hydrolyzing said cellulosic materials to form a mixture which comprises fermentable sugars and unfermentable furfural; wherein (b) comprises exposing said mixture to fermentatio

A process for converting cellulosic materials to hydrocarbons which comprises (a), (b), (c), and (d) wherein (a) comprises hydrolyzing said cellulosic materials to form a mixture which comprises fermentable sugars and unfermentable furfural; wherein (b) comprises exposing said mixture to fermentation conditions to effect fermentation of said fermentable sugars and to produce a mixture containing a fermentation product admixed with said unfermentable furfural; wherein (c) comprises combining said fermentation product admixed with unfermentable furfural with methanol prior to (d); and wherein (d) comprises thereafter contacting the resulting mixture which contains fermentation product, unfermentable furfural and methanol and a highly siliceous crystalline zeolite catalyst having a silica to alumina mole ratio of at least 70 and a Constraint Index of 1 to 12 under conditions of temperature and pressure sufficient to convert said mixture to a hydrocarbon-containing product.