A multi-stage reforming power generation system using liquid fuel as hydrogen source for fuel cells

Abstract

The invention discloses a multi-stage reforming power generation system using liquid fuel as a fuel cell hydrogen source, and belongs to the technical fields of energy, reforming hydrogen production and high-efficiency power generation. The system includes a liquid fuel hydrogen production unit, a fuel cell unit and a waste heat recovery unit, the liquid fuel hydrogen production unit is connected to the intake pipe of the fuel cell unit through an outlet pipe, and the outlet pipe of the fuel cell unit is connected to the intake pipe of the waste heat recovery unit , the outlet pipe of the waste heat recovery unit is connected to the inlet pipe of the liquid fuel hydrogen production unit, and the closed loop structure constitutes energy recycling. The invention proposes the technology of multi-stage reforming liquid fuel oil as a hydrogen source, and develops an anode material resistant to carbon deposition, which solves the technical difficulty of easy carbon deposition in the anode of the fuel cell, and makes the traditional fuel cell with hydrogen as the working medium additional structural weight Problems such as high energy consumption and high safety hazards have been solved, laying the foundation for the substantial application of fuel cells in the field of power generation.

Description

technical field [0001] The invention relates to a multi-stage reforming power generation system using liquid fuel as a fuel cell hydrogen source, and belongs to the technical fields of energy, reforming hydrogen production and high-efficiency power generation. Background technique [0002] SOFC (Solid Oxide Fuel Cell) is a fuel cell that uses oxygen ion / proton conductor as the electrolyte and works at a relatively high temperature (450-1000°C). The by-product is high-quality water vapor, and the waste heat has high value. Its conversion efficiency can be increased to 80%, and almost no nitrogen oxides and sulfur oxides are emitted. SOFC has the characteristics of large technical power level and modular power generation. SOFC modules can be configured according to the actual load capacity to meet the needs of different power levels. Compared with the traditional electricity method based on combustion, SOFC technology greatly reduces the energy loss of fossil fuels and the da...

AI Technical Summary

Problems solved by technology

And the controllability of gasoline combustion is poor)

The carbon number distribution of diesel is wider than that of kerosene, and the composition is more complex, and the catalyst is more likely to be poisoned and attenuated during the hydrogen production process of steam reforming

Moreover, the combustibility of diesel oil is also lower than that of kerosene, and it is easy to generate a large amount of black smoke particles during combustion, which will block the reaction pipeline.

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