Portable Methanol Recombination Fuel Cell System

Abstract

The invention discloses a movable reformed methanol fuel cell system. The movable reformed methanol fuel cell system comprises an automatic fuel blending unit, a fuel recombination unit, a hydrogen purifying unit, a heat exchange unit, a methanation unit, a fuel cell unit and an effluent recovery unit, wherein all the units are integrated in a same cabinet. The movable reformed methanol fuel cellsystem only needs methanol as a fuel, can be started in a catalytic combustion manner, and is rapid to start, compact in structure, high in system efficiency, stable in performance, long in service life, low in pollution and capable of reasonably recycling water and energy produced the system and realizing movable power generation under the action of a single fuel.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a portable methanol recombination fuel cell system. Background technique [0002] A fuel cell is a high-efficiency power generation device that directly converts the chemical energy of fuel and oxidant into electrical energy by electrochemical reaction without going through the combustion process. It has the advantages of high stability, low maintenance, long-term operation, and low emissions. In addition, it can Integration with multiple renewable energy sources as a reliable source of electricity for local residents is currently considered a power generation technology with great potential for development. However, hydrogen is a flammable and explosive substance, which is extremely difficult to liquefy and compress, and difficult to store and transport. [0003] At the current technical stage, compared with pure hydrogen fuel, methanol reforming on-site hydrogen production and purifi...

AI Technical Summary

Problems solved by technology

Usually, the methanol water used in the methanol reforming fuel cell system is pre-configured according to the demand, and cannot be instantly mixed. At the same time, in order to achieve a certain amount of power generation, a larger volume of methanol water fuel tank is usually built in, which will increase the number of fuel tanks. As a mobile fuel cell power generation system, it is usually not easy to obtain piped tap water, and the use of bottled water requires additional manpower and material resources for handling, which is less flexible and inconvenient. The water vapor in the recombination reaction is also excessive, and if not utilized, the water will be wasted in vain

The recombined gas generated after fuel recombination will be purified by the purification device, and some waste hydrogen and carbon monoxide will be discharged. At the same time, the temperature of the recombined gas is relatively high. The anode tail gas contains a small amount of hydrogen and the cathode tail gas contains a small amount of oxygen. If these energies are not used rationally, It will not only reduce system efficiency, but also cause environmental pollution and affect safety

[0004] Compared with existing products, methanol reforming fuel cell systems usually need to use commercial power to supply heat to maintain the temperature of the reactor, so as to achieve the purpose of producing hydrogen and generating electricity immediately after the commercial power failure. Because of the need to use commercial power, therefore It can only be used in fixed-point backup power with mains supply

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