Method and system for purification of gas/liquid streams for fuel cells or electrolysis cells

Abstract

The present invention provides a method and a system for purification of gas / liquid streams for fuel cells or electrolysis cells. The present invention provides in embodiments a method for purification of inlet gas / liquid streams in a fuel cell or electrolysis cell, the fuel cell or electrolysis cell comprising at least a first electrode, an electrolyte and a second electrode. The method comprises the steps of: providing at least one scrubber in the gas / liquid stream at the inlet side of the first electrode of the fuel cell or electrolysis cell; and / or providing at least one scrubber in the gas / liquid stream at the inlet side of the second electrode of the fuel cell or electrolysis cell; and purifying the gas / liquid streams towards the first and second electrode, wherein the at least one scrubber in the gas / liquid stream at the inlet side of the first electrode and / or the at least one scrubber in the gas / liquid stream at the inlet side of the second electrode comprises a material suitable as an electrolyte material and a material suitable as an electrode material, and wherein the material suitable as an electrolyte material and the material suitable as an electrode material form triple phase boundaries similar to or identical to the triple phase boundaries of the electrode for which the gas / liquid stream is purified with the at least one scrubber, with the proviso that the fuel cell or electrolysis cell is not a solid oxide cell.

Description

technical field [0001] The present invention relates to a method and system for purification of an inlet gas / liquid stream of a fuel cell or electrolysis cell. More specifically, the present invention relates to a method and system for purifying a gas / liquid stream towards electrodes of a fuel cell or electrolysis cell by removing impurities that would damage the particle boundaries and reaction electrodes within the fuel cell or electrolysis cell parts. The present invention relates to the use of a scrubber for cleaning a gas / liquid stream fed to an electrode of a fuel cell or an electrolysis cell. Background technique [0002] In advanced electrocatalytic systems, such as those found in fuel cells or electrolysis cells, surface chemistry plays a very important role in the operation, and the presence of impurities / additives on the various surfaces has a negative impact on the overall performance and durability of the device. big impact. [0003] An example of a fuel cell...

AI Technical Summary

Problems solved by technology

[0023] The main purpose of all the methods and systems in the prior art is only to provide means for removing very specific impurities to purify a gas or liquid stream regardless of other impurities that may be present in the gas or liquid stream, and these methods and systems do not Consider any specific structure or composition of each electrode whose gas or liquid stream is to be purified