NOVELTY - Processing apparatus (10) (enables a reaction or combustion of at least one fluid flowing through the processing apparatus), comprises many metal layers and a catalyst system, at least two of the metal layers stacked and aligned together and connected together by at least one metal laminate, the metal layers including an opening which is spaced from an outer edge of the metal layers and adjacently positioned the metal layers forming the fluid channel, the catalyst system and formed of a different composition from at least one of the metal layers.    USE - The processing apparatus is useful: to combust natural gas and to convert at least one by-product of the combusted natural gas into a liquid alcohol (claimed); in association with chemical reactions in the chemical, biological, food, pharmaceutical industry and other applications (e.g. microfluidics, microbiology, chemical testing, analytical instrumentation, biofiltration, test and measurement); in the production of energy (e.g. fuel cells), solar cells, automotive fuel production from natural gas, methane processing, methanol production, production of alcohols from natural gas, propulsion systems (e.g. rocket engines), environmental waste processing e.g. pollution and/or waste control systems, reduction of bio-waste, water purification systems, emissions control, biomedical applications (e.g. enzyme production), heat exchange application (e.g. furnaces); in the military industry; in the telecommunications industry e.g. optical switches and displays, adaptive optics; in the heat exchange industry, and/or the extrusion industry (e.g. die plates, die insert); and in the avionics industry e.g. active structures and surfaces (e.g. micro-satellite components, micro-thrusters, antennas, phase shifters, displays, optical switches, accelerometers, rate sensors and vibration sensors).    ADVANTAGE - The processing apparatus: is cost-effective; provides modular design that can used to increase the versatility; and can be recycled and reused, thus reducing waste and extending the life; minimizes contamination of the recovered catalyst; utilizing the micro reactor, which has the ability to create intricate passageways, exhibits enhanced heat transfer capabilities, is ease of scale via adding additional micro-reactors on-line instead of past scale-up process, can withstand high temperatures and/or pressures, immobilizes catalysts so as to minimize diffusion mass transfer resistances and/or pressure drop, is easy to manufacture and duplication and can stack various modules or portions.    DETAILED DESCRIPTION - Processing apparatus (10) (enables a reaction or combustion of at least one fluid flowing through the processing apparatus), comprises many metal layers and a catalyst system, at least two of the metal layers stacked and aligned together and connected together by at least one metal laminate, at least two of the metal layers including an opening which is spaced from an outer edge of the metal layers, the openings of adjacently positioned metal layers forming the fluid channel through the metal layers that is designed to enable fluid to flow through the fluid channel when the metal layers are connected together, the catalyst system including a catalyst comprising at least one of the metal layers is catalyst that engages fluid flowing through the opening in the metal layer and a catalyst located in the fluid channel and formed of a different composition from at least one of the metal layers, the metal laminate having a different composition from the metal layers. INDEPENDENT CLAIMS are also included for:    (1) a processing apparatus (I) designed enable a reaction or combustion of at least one fluid flowing through the processing apparatus, comprising (a) many metal layers, at least two of the metal layers including an opening, the opening spaced from an outer edge of the at least two metal layers, the openings of adjacently positioned metal layers forming at least one fluid channel through the metal layers that is designed to enable fluid to flow through the at least one fluid channel when the metal layers are connected together, at least two of the metal layers stacked and aligned together and connected together by at least one metal laminate, (b) many metals of the metal layers forming many fluid channels when the metal layers are connected together, the fluid channels are fluidly connected together during or after the fluid flows through the metal layers;    (2) a processing apparatus (II), comprising (a) and including first and second cavities that are connected together, each of the cavities including many metal layers that are connected together, each of the cavities having a fluid opening to enable fluid to flow into and out of the at least one fluid channel;    (3) a processing apparatus (III), comprising (a), the processing apparatus includes (a1) a furnace portion and (b1) a reactor or micro-reactor portion, the furnace portion designed to at least partially a combust fluid, the reactor or micro-reactor designed to convert at least one by-product of the combusted fluid into different fluid product, the furnace portion and the reactor or micro-reactor portion fluidly connected together; and    (4) manufacturing at least portion of a metal device for use in a fluid reactor, the metal device designed to allow fluid to flow through a fluid passageway in the metal device, comprising providing many piece metal foil layers, providing a catalyst system, forming the one piece metal foil layers into specific shapes, at least two of the one piece foil layers including many fluid openings through the one piece metal foil layer, the fluid openings designed to form a portion of the fluid passageway, stacking and aligning the formed one piece metal foil layers such that the formed one piece metal foil layers contact one another, the fluid openings in the formed one piece metal foil layers forming the fluid passageways, each of the fluid openings in the formed one piece metal foil layers is at least partially aligned with the fluid openings in an adjacently positioned formed one piece metal foil layers, and, connecting together the formed one piece metal layers to form at least a portion of the metal device, the fluid passageway only formed by the fluid openings, the fluid passageways including the catalyst system, the catalyst system including a catalyst comprising at least one of the formed one piece metal foil layers is catalyst that engages fluid flowing through the opening in the formed one piece metal foil layers and a catalyst located in the at least one fluid channel and formed of a different composition from at least one of the formed one piece metal foil layers.    DESCRIPTION OF DRAWING(S) - The figure shows an elevation view of processing apparatus.    Processing apparatus (10)    Connection extension (14)    Pipe (20)    Top portion (40)    Bottom portion (50)