Honeycomb body having channels of different flow resistance thro

Details Honeycomb body having channels of different flow resistance thro Honeycomb body having channels of different flow resistance thro

1997-08-20

1999-02-02

Smith, Duane S.

Gas separation

Two or more separators

55486, 55521, 55525, 55DIG30, B01D 4652

Patent

active

058658645

ABSTRACT:
A honeycomb body, in particular a catalyst carrier body, includes a multiplicity of channels through which a fluid can flow. A first group of channels has a higher flow resistance than a second group of channels and the honeycomb body has at least one cross-sectionally asymmetrical accumulation or collection of channels of higher flow resistance covering only part of the cross-sectional area of the honeycomb body in the circumferential direction. The channels of higher flow resistance in particular have smaller hydraulic diameters than the other channels or are provided at inlet and/or the outlet ends and/or in their interiors with additional structures for hindering flow. Honeycomb bodies can thus be produced in which distributions of flow resistances over the cross-sectional area can be defined and matched to flow conditions, which can be particularly advantageous when such a honeycomb is disposed downstream of electrically heatable honeycomb bodies with slits.

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