The present invention comprises a device which utilizes catalytic micro-combustion for the production of heat or power and which exhibits a low pressure drop and has a high catalytic surface area. The catalytic micro-combustor includes catalyst inserts in the reaction chamber separated by a sub-millimeter distance. Thermal spreaders ensure temperature uniformity and maximum thermal efficiency. A mixing zone is prior to the combustion zone. Thermally conductive and/or insulating inserts are in the vicinity of the reaction zone.The present invention relates to techniques for producing electricity from hydrocarbons by coupling a thermoelectric element with a catalytic micro-combustor. These systems currently exhibit efficiencies comparable to conventional batteries, but with virtually instant recharging (by simply adding more fuel) and negligible environmental impact. Due to the high energy density of hydrocarbons, these systems are also expected to eventually exhibit efficiencies significantly higher than traditional batteries. The micro reactors described herein could also be useful for synthesis of chemicals with 35 improved yield and catalyst lifetime, inherent safety, and increased effective rates (process intensification).

• No moving parts needed.
• Maximum reported thermal efficiency in converting the energy of fuels into electricity.
• High transport rates and complete conversion of the fuel.
• Compact power electric generation from hydrocarbons with low thermal signature.

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