Device and method for biomass chemical chain gasification hydrogen production based on calcium-based carbon supporting body

Abstract

The invention relates to a device and a method for biomass chemical chain gasification hydrogen production based on a calcium-based carbon supporting body. The device comprises a biomass gasification furnace, a calcium-based carbon supporting body calcining furnace, a cyclone separator, an upper return valve and a lower return valve; during use, when the operating temperature reaches the preset operating temperature, and after the working pressure of each of two furnace bodies is micro-positive pressure, the calcium-based carbon supporting body is added from a calcium-based carbon supporting body spiral feed port of the calcium-based carbon supporting body calcining furnace, and then biomass particles are added into a biomass spiral feed port; the water vapor and biomass ratio and the solid fluidization rate are adjusted according to the site needs; after the solid fluidization rate is kept stable, a water circulation valve of a waste heat recovery chamber is opened; along with the increase of the number of cycles of the calcium-based carbon supporting body, the carbon supporting capacity of the calcium-based carbon supporting body is reduced, and at the moment, the feeding rate of the fresh calcium-based carbon supporting body in the calcining furnace is adjusted through a flue gas outlet of the cyclone separator as well as the concentration value of CO2 measured at a flue gas outlet of the gasification furnace; meanwhile, a large particle passage of the calcining furnace is opened to discharge sintered and agglomerated large particles into a slag opening of a wind chamber in the lower part for discharge.

Description

[0001] Technical field: [0002] The invention relates to a biomass chemical chain gasification hydrogen production device and method, in particular to a biomass chemical chain gasification hydrogen production device and method based on a calcium-based carbon carrier. [0003] Background technique: [0004] According to the fifth assessment report released by IPCC in 2014, CO 2 Still the most important greenhouse gas. CO emissions from human economic activities in 2010 2 Looking at it, electricity and heating accounted for 25%, agriculture, forestry and land use accounted for 24%, industry accounted for 21%, transportation accounted for 14%, construction industry accounted for 6.4%, and others accounted for 9.6%. According to most scenarios, the supply of primary energy in the next few decades will still be dominated by fossil fuels, and the CO emitted by the combustion of fossil fuels 2 It accounts for a larger proportion and is also the most controllable. Carbon capture a...

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Problems solved by technology

However, the current research on the hydrogen production technology of biomass chemical loop gasification based on calcium-based carbon carrier is in the initial stage. To provide a realistic and feasible biomass chemical loop gasification hydrogen production device and method will play an important role in my country's future energy strategy. The development of

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