Catalytic reforming plant for solid-oxide fuel battery

Abstract

The invention provides a catalytic reforming unit used for a solid oxide fuel cell. The catalytic reforming unit is characterized in that a starting combustion chamber is connected with a reformer through a pipeline or the starting combustion chamber is assembled and connected with the reformer together firmly and tightly; a reforming reactor consists of a reforming reacting unit, an upper sealing set and a lower sealing set of an air flue; the reformer is formed by stacking one or a plurality of reforming reactors with same structure; the adjacent reforming reactors are separated by using an air flue separating plate and then are fixedly tightened by using an upper covering plate and a lower covering plate through nuts, thus allowing cold and hot fluids to flow at an upper side and a lower side of the reacting unit and not to be mixed up. The fluid flows from down to up or from up to down among the reforming reactors. The catalytic reforming unit has the advantages of high energy utilization, small and compact structure and easy detachment and use.

Description

technical field [0001] The invention relates to a catalytic reforming device, especially an intensive catalytic reforming device for a solid oxide fuel cell system. Background technique [0002] At present, it is urgent to build an energy-saving and environment-friendly society. Hydrogen energy will be the energy source of human beings in the future, and fuel cells are the best way to utilize hydrogen energy. The industrial steam reforming hydrogen production technology is quite mature. The large-scale reforming system consists of many tubular reactors filled with spherical catalysts. The operating temperature is above 850°C and the pressure exceeds 25bar. The reactor is 12m long. It needs to be made of expensive alloy steel to withstand the high temperature and reducing gas environment. This large-scale hydrogen production technology cannot meet the compact and miniaturized requirements of the fuel cell system. It is not feasible to simply reduce the design parameters of t...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a simple structure, miniaturized and easy-to-realize reformer for solid oxides in order to overcome the problems of existing reformers such as complex structure, insufficient miniaturization, non-disassembly, and large equipment investment. The catalytic reforming device of the fuel cell, in the solid oxide fuel cell system, when the reformer is started normally after the combustor is started, the residual heat of the exhaust gas of the solid oxide fuel cell can be fully utilized to stop the startup of the combustor and realize the self-supply of the reaction system heat, and can solve the problems of high energy consumption and low efficiency. The present invention can better reflect the characteristics of its strong production capacity in small-scale hydrogen production, and can significantly reduce the investment in small-scale hydrogen production equipment and hydrogen production costs.

Images