FIELD: heating systems, fuel.
SUBSTANCE: invention refers to functional auxiliary maintenance systems of fuel cells, and namely to methods and devices used for removing carbon dioxide from synthesis gas obtained by means of steam conversion of methanol or hydrocarbons and containing hydrogen consumed in fuel cell. The device consists of one or more gas diffusion cathodes through which synthesis gas being cleaned passes, one or more gas diffusion anodes through which blow-down gas passes, and electrolyte located between pairs of electrodes, and electrolyte consists of carbon dioxide saline. Blow-down gas mostly consists of hydrogen. Both new and inactive fuel cell battery with circulating electrolyte can be used as cleaning device.
EFFECT: providing the possibility of continuous cleaning of synthesis gas from carbon dioxide with no solid by-products and with low energy used for cleaning process; providing the possibility of energy use of hydrogen removed from fuel cell in order to improve energy content of initial synthesis gas, and providing the possibility of using the device structurally coinciding with fuel cell as synthesis gas cleaning device.
6 cl, 1 dwg
