Patent ID: 7473404

Claim:
A device for exchange or reaction between at least two fluids, comprising tightly stacked modular blocks, each modular block comprising a first chamber for the flow of a first fluid and a second chamber for the flow of a second fluid, said first and second chambers being separated one from the other by a first exchange wall suitable for an exchange or a reaction between the fluids, wherein each modular block comprises a first spacer with a recessed center part forming said first chamber, the second chamber being formed between said first exchange wall and a second exchange wall, said first and second exchange walls being stacked one to the other and said second exchange wall being an independent wall or a closed side wall of a second spacer, and wherein each spacer and each exchange wall is provided with two or three holes in one of its ends and two or three holes in its opposite end for supplying the fluids to said first and second chambers and for collecting the fluids from said first and second chambers.