Patent ID: 6740683
Filing Date: 2004-05-25
Classification: C07C,C10G

Abstract:
A process for selectively producing linear alcohols, olefins and paraffins in a Fischer-Tropsch reactor, the process including:producing synthesis gas containing hydrogen and carbon monoxide from a carbonaceous fuel; modifying the ratio of hydrogen to carbon monoxide in the synthesis gas to a ratio that is at or above the overall hydrogen/carbon monoxide usage ratio in the reactor, but less than 2; combining the modified synthesis gas with a recycled vapor product from the reactor to provide combined synthesis gas having a hydrogen/carbon monoxide ratio of greater than 2 and less than 3; introducing the combined synthesis gas into a reactor; reacting the hydrogen and carbon monoxide in the combined synthesis gas with an iron-based catalyst under Fischer-Tropsch conditions within the reactor; and recovering linear alcohols, olefins and paraffins produced in the reactor.