Carbon Fuels Corporation

Gerald F Cavaliere

Lee G Meyer

Edmond G Meyer

Bruce C Sudduth

This invention generally relates to refining coal by fluidized hydrocracking employing short residence time volatilization and decomposition of the coal feedstock, with subsequent selective condensation and hydrostabilization without utilization of external hydrogen, that is, hydrogen other than that contained in the coal feedstock, to maximize oil yield and minimize char and gas production. The invention more particularly relates to an improved method of economically producing uniform, fluidic, oil-type transportable fuel systems and fuel compositions and a slate of 'value-added' co-products by a coal refining process employing short residence time hydrodisproportionation (SRT-HDP).

Method for refining coal utilizing short residence time hydrocracking

This invention generally relates a method for increasing the quantity and quality of hydrocarbon liquids derived from the short residence time decomposition and volatilization of coal. The invention more particularly relates to an improved method of economically producing uniform, fluidic, oil-type transportable fuel systems and fuel compositions and a slate of 'value-added' co-products by a coal refining process employing a partial quench step as part of a short residence time hydrodisproportionation (SRT-HDP) reaction.

Method for increasing liquid yields from short residence time

A method for preparing coal-derived fuel compositions while simultaneously producing electricity by utilizing a novel co-generation configuration employing the hydrodisproportionation of coal. Hydrodisproportionation is the short residence time decomposition and volatilization of coal to produce liquid coproducts, minimizing char and gas production without utilization of external hydrogen, that is, hydrogen other than that contained in the coal feedstock. The char produced is gasified to simultaneously produce steam for electrical power generation and syngas to produce methanol in a once-through process. The methanol purge gas is used as a fuel gas for a gas-driven power generating turbine. The waste heat from the power generation is used as the process heat for hydrodisproportionation.

Co-generation system for co-producing clean, coal-based fuels and

This invention generally relates to a catalyzed short residence time decomposition and volatilization of coal to produce liquid co-products while minimizing production of char and gas without utilization of external hydrogen, that is, hydrogen other than that contained in the coal feedstock. The invention more particularly relates to an improved method of economically producing uniform, fluidic, oil-type transportable fuel systems and fuel compositions and a slate of 'value-added' co-products by a catalyzed coal refining process employing short residence time hydrodisproportionation (SRT-HDP). The preferred catalysts are oxides and salts of iron.

Method of refining coal by catalyzed short residence time

This invention generally relates to short residence time decomposition and volatilization of coal to produce liquid co-products, including petroleum substitutes and chemical feedstocks, while minimizing production of char and gas without utilization of external hydrogen, that is, hydrogen other than that contained in the coal feedstock. The invention more particularly relates to an improved partial coal liquefaction process for economically producing petroleum substitutes and chemical feedstocks from coal by a refining process employing short residence time vaporization and hydrogen conservation.

Method of refining coal by short residence time partial liquefaction to

This invention generally relates to co-production of petroleum substitutes, chemical feedstocks and methanol, while minimizing production of char and gas without utilization of external hydrogen, that is, hydrogen other than that contained in the coal feedstock. The invention more particularly relates to an improved partial coal refining process for economically producing petroleum substitutes and chemical feedstocks and hot char from coal by a refining process employing short residence time vaporization and hydrogen conservation and subsequently gasifying the hot char to syngas for production of methanol.

Method of refining coal by short residence time hydrodisproportionation

This invention generally relates to short residence time decomposition and volatilization of coal to produce liquid co-products while minimizing production of char and gas without utilization of external hydrogen, that is, hydrogen other than that contained in the coal feedstock. The invention more particularly relates to an improved method of economically producing uniform, fluidic, oil-type transportable fuel systems and fuel compositions and a slate of 'value-added' co-products by a coal refining process employing short residence time hydrodisproportionation (SRT-HDP).

Low rank coals, waste coals and peat are refined by hydrodisproportionation to produce a slate of co-products by heating these materials in the presence of hydrogen donor rich reducing atmosphere and quenching the reaction vapor produced. The slate of co-products includes a fluidic, combustible non-polluting liquid/solid transportable fuel system derived in substantial part from said hydrodisproportionation.

Utilization of low rank and waste coals in transportable fluidic fuel

Volatile, carbonaceous material is refined by hydrodisproportionation to produce a slate of co-products by heating the carbonaceous material in the presence of hydrogen donor rich reducing atmosphere and quenching the reaction vapor produced. The slate of co-products includes a fluidic, combustible non-polluting liquid/solid transportable fuel system derived in substantial part from said hydrodisproportionation.

Method of refining coal by hydrodisproportionation

The rheology of a fluidic, substantially combustible non-polluting liquid/solid slurried fuel system derived in substantial part from hydrodisproportionation of coal is varied by addition of fluidic aqueous mixtures and lower chain alcohols to alter the rheology of the mixture and reduce the thermal NO.sub.x upon combustion.

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Englewood, CO, United States of America

Gerald F Cavaliere