Reformer combining autothermal reforming and water vapor reforming

Abstract

The invention discloses a reformer combining autothermal reforming with water vapor reforming. According to the technical scheme, the reformer comprises a combustor module and a water vapor reformer module; the combustor module comprises a combustor water vaporizing chamber, a combustor fuel vaporizing chamber, an autothermal reforming reaction chamber and a combustion chamber; the water vapor reformer module comprises a water vapor reforming water vaporizing chamber, a water vapor reforming fuel vaporizing chamber and a water vapor reforming reaction chamber, and the high-temperature tail gas is subjected to heat exchange through the water vapor reformer module to form low-temperature combustion tail gas. According to the scheme provided by the invention, the hydrogen is obtained through an autothermal reforming method and is used for catalyst combustion, heat is provided for the water vapor reforming reaction, the reformer can be quickly started by using the same fuel, the hydrogen concentration in the reformed gas is kept at a relatively high level, and no nitrogen-containing compound impurity exists.

Description

technical field [0001] The invention relates to the technical field of reformers, in particular to a reformer combining autothermal reforming and steam reforming. Background technique [0002] With the development of fuel cell and hydrogen internal combustion engine technology, hydrogen energy, as an alternative energy source, has become the consensus of researchers and product developers. Due to the problems of high pressure and explosiveness in the storage and transportation of hydrogen, directly storing hydrogen as an energy source will be a solution with high cost and great safety hazards. Therefore, the use of hydrogen-rich liquid fuels for catalytic reforming reactions to produce hydrogen is favored by researchers. [0003] There are many fuel reforming technologies, among which the steam reforming method and the autothermal reforming method have been practically applied due to their respective characteristics. The steam reforming method reacts gaseous fuel and water...

AI Technical Summary

Problems solved by technology

However, since oxygen is obtained by introducing air in practical applications, and there is a large amount of nitrogen in the air, the components of the reformed gas contain a large amount of nitrogen, which reduces the concentration of hydrogen, and nitrogen is easy to react with hydrogen through the catalyst at high temperature. Produce ammonia and other by-products, which leads to the complexity of the purification process and the increase of cost, which is limited in practical application

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