Reforming hydrogen production and catalytic combustion integrated device with variable catalyst particle arrangement

Abstract

The invention discloses a reforming hydrogen production and catalytic combustion integrated device with variable catalyst particle arrangement. The appearance of the device is in a sleeve form, catalytic combustion and catalytic reforming reaction are carried out at the same time, the device is divided into a catalytic combustion cavity, a preheating cavity and a reforming cavity, catalytic combustion tail gas enters the catalytic combustion cavity from an inlet, a large number of micropores are formed in the tail end of the sleeve, reacted tail gas enters the preheating cavity through the micropores to preheat a reformer and then is discharged out of the device through an outlet pipe. On the other end , reforming fuel enters from the inlet, flows in the spiral pipe, is preheated by catalytic combustion tail gas and then enters the reforming cavity. The device integrates tail gas catalytic combustion, preheating and reforming hydrogen production, the tail gas is subjected to catalytic combustion, heat is provided for reforming reaction, meanwhile, fuel preheating is integrated, the whole system is compact in structure, and the conversion rate is further improved.

Description

technical field [0001] The invention relates to a reforming hydrogen production and catalytic combustion integrated device with variable catalyst particle arrangement, belonging to the technical field of fuel reforming and catalytic combustion. Background technique [0002] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy, also known as an electrochemical generator. It has great advantages such as high energy conversion efficiency and low noise. Common types of fuel cells include alkaline fuel cells, proton exchange membrane fuel cells, molten carbonate fuel cells, solid oxide fuel cells, and the like. Among them, the proton exchange membrane fuel cell not only has a low operating temperature, can be quickly started, but also has a large specific power and specific energy density, which is a very advantageous fuel cell. [0003] Fuel cells require a reliable hydrogen supply system. The traditional hydrogen supply m...

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Problems solved by technology

[0004] Typical hydrocarbon reforming reaction hydrogen production can be divided into three types: steam reforming, partial oxidation reforming and autothermal reforming, among which steam reforming hydrogen production can obtain higher purity hydrogen, and can be Inhibiting the occurrence of coking phenomenon to a certain extent is a research hotspot at present, but this reaction is an endothermic reaction and requires an external heat source

[0005] In addition to the problem of hydrogen supply, although fuel cells are clean and environmentally friendly, the utilization rate of fuel cannot reach 100% at present, so some hydrogen with high calorific value will be wasted

[0006] Although there is a lot of research work on the reformer, most of the reactor modules are separated, and the filling form of the catalyst is also single, which results in a low integration of the reformer, a large system volume, and a low conversion rate. , serious heat loss and a series of problems

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