Patent ID: 7541007

Claim:
A microreactor comprising: a substrate of silicon or other micromachinable material; at least two interconnected and parallel paths formed in the substrate, said paths being parallel generally serpentine paths extending from a common inlet to a common outlet, wherein each path defines a resistance to the flow of fluid flowing thereacross and the resistance of all paths is substantially equal to promote equal residence time of fluids flowing across each of said parallel paths; a filter for trapping catalyst particles positioned proximate to said outlet of said reactor; a wafer positioned on the substrate to conceal the parallel paths, said wafer including a first aperture extending through a thickness dimension of the wafer and corresponding in location to the common inlet of the substrate and a second aperture extending through the thickness dimension of the wafer and corresponding in location to the common outlet of the substrate; and a capillary tube mounted to each aperture of the wafer, each capillary tube including a first portion having a relatively larger diameter than a second portion, said first portion of each capillary tube being positioned in sealing contact with a wall surface of a respective aperture.