Tubular ceramic membrane reactor and methanol synthesis method implemented by using same

The invention relates to a tubular ceramic membrane reactor and a methanol synthesis method implemented by using the same. The method is used for synthesizing methanol through the tubular ceramic membrane reactor by taking enormously discharged greenhouse gas CO2 and water vapor as raw material gas, namely, under the action of a high temperature (400-800 DEG C) and an external electric field (1.2-2.5 V), water is subjected to electrolytic reaction at the anode of a proton type microtubular electrolytic cell so as to generate H , the H generated by the anode is transmitted to the cathode of the electrolytic cell through a proton conductor electrolyte membrane, CO2 fed into a cathode chamber is reacted with the high-activity H and e on a gas/solid interface in a Ni-based porous cathode with catalytic activity, so that the methanol is synthesized at normal pressure. The methanol synthesis method has the characteristics of energy conservation, emission reduction, environmental friendliness and capability of mass production, so that the method has the advantage of broad application prospect.