NOVELTY - Producing liquid fuels from e.g. coal, comprises: gasifying starting material e.g. coal, to produce syngas; subjecting syngas to Fischer-Tropsch synthesis to produce hydrocarbon product stream; separating stream into hydrocarbons; subjecting hydrocarbons to catalytic dehydrogenation (CDH) to produce hydrogen and multi-walled carbon nanotubes (MWCNT); utilizing energy released in gasification for CDH reaction to provide enthalpy for catalytic dehydrogenation; mixing hydrogen with syngas; cleaning MWCNT and dissolving CDH catalyst in cleaning solution; and recovering MWCNT and catalyst.    USE - The method is useful for producing liquid fuels from coal, coal and biomass, or other solid hydrocarbons.    ADVANTAGE - The method: incorporates catalytic dehydrogenation into a Fischer-Tropsch synthesis-catalytic dehydrogenation plant thus eliminates most of the carbon dioxide emissions from the water-gas shift (WGS) reaction that is used to elevate the hydrogen level of coal derived syngas for Fischer-Tropsch synthesis; and saves large amounts of water used by the WGS reaction and produces valuable by-product (i.e. MWCNT).    DETAILED DESCRIPTION - Producing liquid fuels from coal, coal and biomass, or other solid hydrocarbons, comprises: gasifying a starting material including coal, biomass and/or waste hydrocarbons, to produce a syngas; subjecting the syngas to Fischer-Tropsch synthesis (FTS) to produce a hydrocarbon product stream; separating the hydrocarbon product stream into 1-4C hydrocarbons and more than 5C hydrocarbons that are used as liquid fuels; subjecting the 1-4C hydrocarbons to catalytic dehydrogenation (CDH) in the presence of a catalyst to produce hydrogen and multi-walled carbon nanotubes (MWCNT); utilizing energy released in cooling the syngas from a gasification temperature of 1500-1600 degrees K to a useful operating temperature for the CDH reaction of 1000 degrees K to provide the activation enthalpy required for catalytic dehydrogenation; mixing the hydrogen with the syngas from the gasifier to increase the hydrogen/carbon monoxide ratio of the syngas for FTS to greater than or equal to 2, thus enabling production of liquid fuels by combined FTS and CDH with significantly reduced carbon dioxide emissions relative to conventional FTS processing; cleaning the MWCNT and dissolving the CDH catalyst in a cleaning solution; recovering the MWCNT from the cleaning solution by centrifugation, filtration or other techniques; and recovering the catalyst from the resulting cleaning solution by standard precipitation methods and recycling it to the CDH reactor. An INDEPENDENT CLAIM is also included for a liquid fuel production facility, comprising: a gasification unit (1) to produce a syngas from a starting material including coal, biomass, waste hydrocarbons and/or waste carbon; a Fischer-Tropsch unit (2) downstream from the gasification unit to produce a hydrocarbon product stream from the syngas, where the hydrocarbon product stream includes 1-4C hydrocarbons and more than 5C hydrocarbons used as liquid fuels; a separation unit (3) between the Fischer-Tropsch unit and the catalytic dehydrogenation unit to separate the hydrocarbon product stream into 1-4C hydrocarbons and more than 5C hydrocarbons; a CDH unit (4) downstream from the separator unit to produce hydrogen gas and carbon nanotubes from the 1-4C hydrocarbons; a mixing unit downstream from the gasifier and the CDH unit which uniformly mixes hydrogen from the CDH unit and syngas from the gasification unit to produce modified syngas with significantly enhanced hydrogen/carbon monoxide ratios; and a MWCNT cleaning and catalyst recovery unit (6).    DESCRIPTION OF DRAWING(S) - The figure shows schematic block diagram illustrating the liquid fuel production facility.    Gasification unit (1)    Fischer-Tropsch synthesis unit (2)    Separation unit (3)    Catalytic dehydrogenation unit (4)    Catalyst recovery unit (6)