TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The synthesis gas preparation and waste heat recycling subsystem at least comprises a coal/pure oxygen partial gasification furnace, a carbocoal combustion reforming reactor, and a waste heat recycling device. The coal/ pure oxygen and water vapor partial gasification reaction occurs in the coal/pure oxygen partial gasification furnace to implement coal gasification process to generate the synthesis coal gas. The non-reacted part is converted into carbocoal. The carbocoal is burnt on outer side of a reaction tube in the carbocoal combustion reforming reactor to generate heat for the natural gas and the water vapor reforming reaction at the catalyst surface in the reaction tube, where waste heat of both the synthesis gas generated in the coal gasification process and the synthesis gas prepared through deforming reaction is recycled through the waste heat recycling device, and simultaneously overheat vapor is produced. The coal gasification process is appropriate transformation, where the components with higher chemical activity is converted into the synthesis coal gas and carbon conversion rate of the coal in the gasification process is regulated by changing pure oxygen input quantity, vapor input quantity and reaction time and then regulating range to 20-70%. The synthesis coal gas is rich with carbon monoxide, the reformed synthesis gas is rich with hydrogen and the two synthesis gases are mixed in a certain ratio, which is benefit for follow-up chemical products composing. The temperature of the reforming reaction is controlled to greater than or equal to 550 degrees C. The water-carbon ratio of the reforming reaction is 2-5, pressure of the reforming reaction is controlled at 0.2-2 MPa and the conversion rate of methane in the reforming reaction is regulated by changing the reaction temperature. The parameter of the overheat vapor generated through the waste heat recycling device is the same as the parameter of a steam turbine inlet in the generating subsystem. The synthesis coal gas generated through the coal gasification process is mixed with the synthesis gas prepared through the reforming reaction and carbon-hydrogen ratio of the mixed gas is regulated flexibly through carbon rich property of the synthesis coal gas and hydrogen rich property of the synthesis gas. The synthesis gas preparation and waste heat recycling subsystem further comprises a dust removing and flue gas desulfurization device, where waste heat of smoke gas generated by burning the carbocoal on outer side of a reaction tube in the carbocoal combustion reforming reactor is recycled through the waste head recycling device to generate the vapor and pre-heat the air. The low-temperature smoke is desulfurized through the desulfurizing device to discharge into atmosphere and the overheat vapor generated through the waste heat recycling device is conveyed to a steam turbine for generating. The chemical products synthesis and refining subsystem comprises a synthesis apparatus, and a separating and refining unit. The synthesis apparatus converts the mixed gas of the coal gas and the synthesis gas into crude chemical products through chemical products synthesis and the separating and refining unit is for improving purity ad quality of the chemical products. The chemical products synthesis process converts the component with higher synthesis activity into the chemical products according to the chemical activity of the synthesis gas components, and the component with lower activity is the output to the generating subsystem to fuel. The part of non-reacted gas in the chemical products synthesis process is mixed with fresh synthesis gas through pressurizing and circulation multiplying power is controlled below 3. The chemical products synthesis and refining subsystem comprises a methanol synthesis apparatus, a separator and a rectifying unit. The methanol synthesis apparatus converts the synthesis gas into the methanol. The separator separates the crude methanol from the synthesis gas and the rectifying unit refines the crude methanol obtained by the separator into pure methanol. The chemical products synthesis and refining subsystem appropriately transfers the active component in the synthesis gas into the methanol. The separator recycles part of the non-converted synthesis gas to the methanol synthesis apparatus and the rest non-converted synthesis gas is conveyed to the generating subsystem to generate as fuel. The generating subsystem at least comprises a generating device. The generating device is a fuel gas-vapor combined circulation generating device which comprises a fuel gas turbine, a waste heat boiler and a vapor turbine to convert the chemical energy of the fuel and heat energy of the vapor into the electric power.