Experimental device for hydrogen production by multi-atmosphere up-and-down gas inlet gasification

Abstract

The invention discloses an experimental device for hydrogen production by multi-atmosphere up-and-down gas inlet gasification, and belongs to the technical field of biomass gasification hydrogen production. The experimental device is provided with a steam generator, a steam superheater, a gasification tube, a high-temperature atmosphere furnace and a condenser which are connected to realize the purpose of producing hydrogen by gasification of biomass in various atmospheres including water vapor. According to the experimental device, multi-atmosphere superheated steam is obtained by arranging the steam superheater and a gas-distributing pipe, the multi-atmosphere superheated steam is simultaneously fed into the gasification pipe through a steam connection II and a lower gas inlet pipe, conditions for the biomass gasification reaction are provided, water vapor in products is converted into liquid water through a condenser, and hydrogen is collected. The device for hydrogen production byusing biomass gasification in a water vapor atmosphere is provided, each reaction link in the device is reasonably designed, the reaction links are compactly connected, unnecessary energy loss is reduced, and the experimental device has high application value in the technical field of biomass gasification hydrogen production.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production by gasification of composite fuels such as biomass, and in particular relates to an experimental device for hydrogen production by gasification of multi-atmosphere up and down air inlets. Background technique [0002] As a clean secondary energy source, hydrogen is increasingly used and applied. Since pure hydrogen does not exist in nature, pure hydrogen can only be obtained through conversion, decomposition and separation of other chemical substances, but this process requires a lot of energy. There are many kinds of hydrogen production technologies, which can be divided into three types according to the raw materials used: fossil fuel hydrogen production, renewable energy hydrogen production and water electrolysis hydrogen production. However, hydrogen production from fossil fuels has the disadvantages of high energy consumption and large amount of pollutant generation. Hydrogen pr...

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Problems solved by technology

[0004] However, the existing gasification hydrogen production mostly uses atmospheres such as oxygen and air, and the air intake of the gasifier is mostly from the side or the bottom. Although a single oxygen or air atmosphere can provide better heat for spontaneous combustion of materials , but the hydrogen production is not high, and the bottom air or side air intake is too much, and there are many fixed beds of fillers, and the internal center material cannot be well exposed to the atmosphere gas.

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