Hydrogen power generation system capable of producing and storing hydrogen

Abstract

The invention discloses a hydrogen power generation system capable of producing and storing hydrogen. Biomass resources are adopted as the raw materials, biomass thermochemical hydrogen production is utilized to decompose all agricultural straws into hydrogen-rich gas, and hydrogen in the hydrogen-rich gas is stored in an organic hydrogen storage material through an organic hydrogen storage device. The organic hydrogen storage material involved in the invention is composed of 2-methyl-[1, 8]-naphthyridine, diazafluorene and N-methylindole, has the characteristics of high hydrogen storage density and appropriate dehydrogenation temperature, the hydrogen released from the organic hydrogen storage device can be directly used for fuel cells, and hydrogen energy can be converted into electric energy or directly used for heat supply through hydrogen fuel cells, thus enhancing the economical efficiency of energy utilization. The power generation system provided by the invention is convenient and flexible, is suitable for establishment of a distributed energy system, and is applicable to energy development in areas away from the power grid and rich in biomass resources. The system combines biomass power generation technology with hydrogen technology, utilizes hydrogen energy as the biomass power generation intermediary, combines the high efficiency and flexibility of fuel cells, and realizes clean and efficient conversion of biomass to electricity.

Description

technical field [0001] The invention belongs to the field of energy, and more specifically relates to a hydrogen power generation system capable of producing hydrogen and storing hydrogen. Background technique [0002] In the near future, the whole world may face a serious energy shortage problem. The future energy goal is to develop a new type of green, efficient and sustainable renewable energy. The energy density of hydrogen is as high as 120MJkg-1, and the calorific value of hydrogen is even higher than that of fossils. Fuel is 142351kJ / kg, which is three times the heating value of gasoline. We can produce hydrogen from renewable raw materials such as water, biomass or biogas. Hydrogen can be used in internal combustion engines like gasoline to provide energy for power equipment through direct combustion to generate heat, and can also be used as an energy material in fuel cells. At present, hydrogen production technologies mainly include biological hydrogen production ...

AI Technical Summary

Problems solved by technology

[0003] Hydrogen is in a gaseous state at normal temperature and pressure, has the lowest density, and is flammable, explosive, and easy to diffuse. It is difficult to achieve safe storage and transportation of hydrogen under mild conditions. Therefore, the storage and transportation of hydrogen have always restricted the development of hydrogen energy. Bottleneck, each of these existing hydrogen storage technologies has certain deficiencies, and cannot fully meet the needs of the future hydrogen energy economy; the efficiency of high-pressure gaseous hydrogen storage is very low, and even when pressurized to 30MPa, the mass hydrogen storage density is still less than 3% , and there are unsafe factors such as container explosion and hydrogen leakage during transportation and use; low-temperature liquid hydrogen storage technology must be equipped with corresponding cooling devices, its mass hydrogen storage density is limited, and gaseous hydrogen is cooled to liquid Hydrogen consumes a lot of energy. In order to maintain a low temperature environment, the energy equivalent to 30% of the mass energy of liquid hydrogen will be consumed, resulting in a high cost of this hydrogen storage method; for metal hydride hydrogen storage, most metal hydrides are either Very stable, or very unstable, its lattice structure is easily destroyed after several hydrogenation cycles

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