Method and system for producing hydrogen oil through waste pyrolysis

Abstract

The invention discloses a method and a system for producing hydrogen oil through waste pyrolysis, the system for producing hydrogen oil through waste pyrolysis is used for carrying out anaerobic pyrolysis on garbage to generate mixed gas, and the mixed gas is subjected to a reforming reaction and a water-gas shift reaction under the action of a high-selectivity reaction catalyst to produce hydrogen and carbon dioxide. Hydrogen is subjected to a gas purification process to prepare purified hydrogen, and the purified hydrogen and the liquid organic hydrogen storage carrier are subjected to hydrogenation reaction to obtain hydrogen oil which can be stored at normal temperature and normal pressure. The comprehensive utilization system for the waste not only can fundamentally eliminate various pollution sources generated in the waste treatment process and meet the requirements of all environmental protection standards in the world at present, but also can convert the waste into hydrogen energy and various useful substances, and has good environmental protection and economic values.

Description

technical field [0001] The invention belongs to the technical field of hydrogen energy, and in particular relates to a method and system for producing hydrogen oil by pyrolysis of waste. Background technique [0002] Waste treatment and disposal has increasingly become a worldwide concern, and it is a very arduous comprehensive and systematic project. Waste includes household waste, industrial solid waste and biomass. Biomass includes all plants, microorganisms, animals that feed on plants and microorganisms, and their wastes. [0003] At present, the treatment methods of domestic waste mainly include landfill, composting, and heat treatment. The landfill method not only occupies a large amount of land resources, but also heavy metals and other substances in the garbage will cause secondary pollution of the soil and groundwater. The heat treatment method has obvious advantages, which can further improve the "harmless, reduced, and resource-efficient" urban garbage. The le...

AI Technical Summary

Problems solved by technology

Taking Germany as an example, the liquid organic hydrogen storage technology developed can realize the hydrogen absorption and desorption cycle under relatively mild conditions, but the released hydrogen contains by-product gases that are poisonous to fuel cells, and there are also important problems such as low capacity and inconvenient use. Defects: Japan is currently developing hydrogen storage technology based on traditional organic materials such as toluene, but the dehydrogenation temperature is too high (greater than 300°C), and there is also the problem of poisoning fuel cells by by-products

Therefore, the large-scale application of these two normal temperature and pressure liquid organic hydrogen storage technologies is restricted.

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