Method and equipment for feeding two gases into and out of a multi-channel monolithic structure

Method for feeding two gases with different chemical and/or physical properties into and out of the channels in a multi-channel monolithic structure where the channel openings are equally distributed over the monolith's entire cross-sectional area and where the channels have joint walls,

• wherein the gases are fed into an opening in one or more plenum gaps for one of the gases and one or more plenum gaps for the other gas respectively, where said plenum gaps are located in a manifold head which is sealed to one side of the said monolithic structure,
• the two gases are distributed from said gaps and into the monolith's channels in such a way that at least one of the channel walls is shared by the two gases,
• the two gases are thereafter collected in one or more plenum gaps for one of the gases and one or more plenum gaps for the other gas respectively, where said plenum gaps are located in a manifold head which is sealed to the opposite side of the monolith structure, where the former manifold head is sealed, and that
• the gases are thereafter fed out of the respective openings in the latter plenum gaps.

Method for feeding two gases with different chemical and/or physical properties into and out of the channels in a multi-channel monolithic structure where the channel openings are equally spread over the monolith's entire cross-sectional area and where the channels have joint walls,

• wherein one of the gases is fed into an opening in one or more plenum gaps where said plenum gaps are located in a first manifold head which is sealed to one side of the said monolithic structure,
• the other gas is fed into an opening in one or more plenum gaps where said plenum gaps are situated in a second manifold head which is sealed to the opposite side of the said monolithic structure, where the former manifold head is sealed,
• the two gases are distributed from said gaps and into the monolith's channels in such a way that at least one of the channel walls is shared by the two gases,
• the first gas is thereafter collected in one or more plenum gaps, where said plenum gaps are located in the second manifold head,
• the second gas is thereafter collected in one or more plenum gaps, where said plenum gaps are located in the first manifold head, and that
• the two gases are fed out of the openings of the plenum gaps in the first and second manifold head respectively.