TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: The method of catalytically preparing a fluid product from solid carbonaceous material, comprises: reacting solid carbonaceous material in the presence of one or more first catalysts to produce soluble material under conditions, depolymerizing polymeric material in the presence of one or more depolymerization catalysts, where the polymeric material is contained in or derived from the solid carbonaceous material; dehydrating chemical compounds in the presence of one or more dehydration catalysts, where the chemical compounds is derived from the solid carbonaceous material; and hydrogenating chemical intermediates in the presence of one or more hydrogenation catalysts, where the chemical intermediates are derived from the solid carbonaceous material. The method further comprises: depolymerizing polymeric material in the presence of one or more depolymerization catalysts, where the polymeric material is contained in or derived from the biomass, or dehydrating chemical compounds in the presence of one or more dehydration catalysts, where the chemical compounds are derived from the biomass, and/or hydrogenating chemical intermediates in the presence of one or more hydrogenation catalysts, where the chemical intermediates are derived from the biomass. In the method, a cosolvent replaces the methanol or is added in addition to the methanol. In the method, carbon monoxide and hydrogen replace the methanol or are added in addition to the methanol. The fluid product is prepared with substantially no char formation. Preferred Components: The biomass is woody biomass. The catalysts comprise a copper (Cu)-doped metal oxide, a zeolite-based catalyst, a supported metal catalyst, a metal carbide catalyst and/or a zeolite catalyst. The Cu-doped metal oxide comprises oxides of Cu, M(II) and/or M(III) in any proportion, where M(II) is magnesium and/or zinc, and M(III) is aluminum, chromium, and/or iron; the zeolite or zeolite based catalyst is H-ZSM-5, the supported metal catalyst is platinum/aluminum oxide (Al2O3), rhodium/zirconium oxide (ZnO), palladium/carbon, or Cu/hydrotalcite; and the metal carbide catalyst is tungsten-carbon (W2C) supported on activated carbon. The depolymerization catalysts comprise a Cu -doped metal oxide catalyst and/or a supported metal catalyst, the dehydration catalysts comprise a Cu-doped metal oxide and/or a zeolite catalyst, and the hydrogenation catalysts comprise a Cu-doped metal oxide, a supported metal catalyst and/or a metal carbide catalyst. The catalysts, the depolymerization catalysts, the dehydration catalysts, and the hydrogenation catalysts are the same catalyst. The same catalyst comprises mixed oxides of Cu/Mg/Al or Cu/ZnO/Al2O3. The fluid product comprises a 5C, 6C, 7C, 8C and/or 9C alcohol. The fluid product comprises a syngas mixture. The solid carbonaceous material is biomass. EXAMPLE - No suitable example given.