Patent ID: 9145614
Filing Date: 2015-09-29
Classification: C25B,H01M,Y02E

Abstract:
1. A membrane reactor configured to electrochemically convert carbon dioxide gas into an expected product, the membrane reactor comprising: a cavity; a solid electrolyte membrane separator disposed in the cavity and dividing the cavity into a cathode chamber and an anode chamber, wherein the solid electrolyte membrane separator is a composite of an enhanced perfluorooctane sulfonate membrane and perfluorocarboxylic acid membrane with a thickness of about 200 micrometers; a cathode disposed in the cathode chamber, the cathode being a trickle bed structure comprising a porous conductive layer and a plurality of cathode catalyst particles disposed on the porous conductive layer, wherein the porous conductive layer comprises a plurality of through holes, and the plurality of through holes extend from one side to another side along a thickness direction of the porous conductive layer in a curvy manner; the plurality of cathode catalyst particles comprise a mixture of bismuth particles and zinc particles deposited on a support skeleton of the porous conductive layer; and a porosity of the porous conductive layer is about 90% with a thickness of about 20 millimeters; an anode disposed in the anode chamber, wherein the anode, the solid electrolyte membrane separator, and the porous conductive layer are stacked together to form a membrane shaped structure, the thickness direction extends from the anode to the porous conductive layer; the anode comprises a porous diffusion layer and an anode catalyst layer disposed on a surface of the porous diffusion layer; and the anode catalyst layer comprises LaNi a fuel cell disposed outside the cavity to provide an electrolytic voltage, the fuel cell comprising a fuel inlet, an oxidant inlet, and a reaction product outlet, the expected product comprising a hydrogen gas and an oxygen gas, wherein the hydrogen gas is used as a fuel and fed through the fuel inlet, and the oxygen gas is used as an oxidant and fed through the oxidant inlet for the fuel cell to produce electrical power.