Microcomponent chemical process sheet architecture

The present invention relates generally to an apparatus and method for accomplishing heat transfer and/or power conversion, or chemical process including conversions and separations. There is disclosed a microcomponent chemical process comprising: performing at least one chemical process unit operation which is a chemical conversion or chemical separation in a first laminate having at least one first microcomponent (2,4) by receiving a chemical reactant and rejecting a product, and performing an additional unit operation in at least one second microcomponent, the chemical process unit operation and the additional unit operation producing a system operation, and exchanging heat with the at least one first microcomponent (2,4), wherein the at least one first microcomponent comprises a plurality of lands (10) and flow paths (3,5,6,8) arranged as a pair of headers and a plurality of laterals.