Syntroleum Corporation

James Francis Leahy

Gary L Beer

Michael D Briscoe

Juan Inga

Kernan J McHugh

Robert L Freerks

Greg A Lisewsky

A method and a system for drying a biomass, wet pulverized coal or combinations thereof, using heat from a Fischer-Tropsch synthesis in a heat exchanger to heat a nitrogen gas, using a flue gas in a heater to heat the heated nitrogen gas to a higher temperature, passing the twice heated nitrogen gas through apparatus to pulverize the fuel source of coal, biomass or both, forming a gas/particulate stream, filtering the gas/particulate stream in a filter to remove dried fuel feed stocks and using a blower to form a first steam and nitrogen mixture for discharge, and a second steam and nitrogen mixture for mixing with additional dry nitrogen gas for introduction to the first step of the method, at the heat exchanger.

Use of waste heat from Fischer-Tropsch synthesis to form dry pulverized fuel feedstock

A process to optimize a slurry Fischer-Tropsch catalyst life and to further optimize removal of debris from a slurry Fischer-Tropsch process is provided. The process passes a part of a Fischer-Tropsch Reactor slurry inventory to another upstream Fischer-Tropsch Reactor where the Fischer-Tropsch reactors are connected in series. The process utilizes either multiple or a single transfer vessel and optionally, a motive gas.

Process to enhance catalyst life and removal of debris

A process for extending the life of a Fisher-Tropsch catalyst in a process for converting synthesis gas produced in an autothermal reactor by the substoichiometric oxidation of a light hydrocarbon gas by removing ammonia from the synthesis gas prior to passing the synthesis gas to a Fischer-Tropsch reactor.

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Tulsa, OK, United States of America

James Francis Leahy