Patent ID: 7871729
Filing Date: 2011-01-18
Classification: B01D,H01M,Y02E

Abstract:
1. A fuel cell exhaust system which reduces concentrations of hydrogen in an oxidant exhaust, comprising: an oxidant exhaust pipe that transports a gas flow comprising a mixture of oxidant gas and hydrogen gas exhausted from a fuel cell from an inlet of the exhaust pipe to an outlet of the exhaust pipe; and a wire mesh disposed within the exhaust pipe around a periphery of the exhaust pipe, leaving a centrally situated flow-through area of said pipe unobstructed, said wire mesh having a weave pattern running along a length and circumference of the exhaust pipe, and said wire mesh causing a turbulent flow in portions of the exhaust pipe surrounding said flow-through area, in proximity to the wire mesh, such that the hydrogen gas transported through the exhaust pipe mixes with the oxidant gas trapped in the wire mesh.