Microchannel laminated mass exchanger and method of making

A microchannel mass exchanger, comprising a laminate bonded from sheets comprising:

• (a) an inner sheet having a solid margin around a circumference, said solid margin defining a slot through the entire thickness of said inner sheet;
• (b) a first outer sheet having at least two header holes positioned within said solid margin and positioned at opposite ends of a slot length,
• (c) an end block or second outer sheet:
• wherein said inner sheet is disposed between said first outer thin sheet and said end block or second outer sheet such that said solid margin sealably spaces said first outer sheet and said end block or second outer sheet, wherein said first outer sheet and said end block or second outer sheet define longitudinal walls of a flow channel having a length parallel to a sheet length, wherein a fluid enters through one of said header holes into said slot to flow in a direction parallel or longitudinal to the length of said flow channel;
• (d) a mass transfer medium within the solid margin and on or integral with at least one of said outer sheets or said end block.

A microchannel mass exchanger, comprising a laminate bonded from sheets comprising:

• (a) an inner sheet having a solid margin around a circumference, said solid margin defining a slot through the entire thickness of said inner sheet;
• (b) a first outer sheet having at least two header holes positioned within said solid margin and positioned at opposite ends of a slot length;
• (c) an end block or second outer sheet;
• wherein said inner sheet is disposed between said first outer sheet and said end block or second outer sheet such that said solid margin sealably spaces said first outer sheet and said end block or second outer sheet, wherein said first outer sheet and said end block or second outer sheet define longitudinal walls of a flow channel having a length parallel to a sheet length, wherein a fluid enters through one of said header holes into said slot to flow in a direction parallel or longitudinal to the length of said flow channel;
• (d) a mass transfer medium within the solid margin and on or integral with at least one of said outer sheets or said end block;
• wherein said microchannel mass exchanger has an outer surface defined by a plurality of edge thicknesses of inner and outer sheets, said outer surface proximate a thermal load so that said thermal load is transmitted via conduction through said plurality of stacked sheets and also transmitted via convection between said stacked plurality of sheets and said fluid.