Biomass grading gasification hydrogen production method

Abstract

The invention discloses a biomass grading gasification hydrogen production method. The biomass grading gasification hydrogen production method comprises the steps of subjecting biomass sequentially tohigh-temperature water vapour catalytic gasification, middle-temperature adsorption-enhanced water vapour reforming and low-temperature water-gas shift reaction and CO2 adsorption to produce high-purity H2; the temperature of the high-temperature water vapour catalytic gasification process is higher than or equal to 700 DEG C; the temperature of the middle-temperature adsorption-enhanced water vapour reforming process is 600-700 DEG C; and the temperature of the low-temperature water-gas shift reaction and CO2 adsorption reaction process is 300-500 DEG C. According to the biomass grading gasification hydrogen production method, catalysis and CO2 in-situ adsorption are organically combined, so that a biomass gasification hydrogen production process is significantly enhanced; and meanwhile,by controlling the temperature of the various grades of reaction, hydrogen production key reaction processes of biomass water vapour gasification, WGS reaction, CO2 adsorption and the like are conducted in optimized reaction temperature ranges, so that the biomass grading gasification hydrogen production method benefits a high H2 concentration and yield.

Description

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AI Technical Summary

Benefits of technology

This technology helps create more efficient ways for producing clean energy from various types of organic materials like coal or wood waste through converting them into syngas that can be used directly without relying on fossil fuels. By categorizing these different sources with specific temperatures, this method allows for higher yields of biofuel while also improving efficiency over traditional methods.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency of producing biofuels through biological pyrolysis methods that involve reactants like lignocellulosic material or coal. While traditional techniques have been developed over time, these new techniques aim towards increasing the content of specific compounds called alcohols while reducing emissions associated with fossil fuel combustion. Current approaches require expensive equipment and consume too much energy during operation. Therefore, there is a desire to develop efficient ways to generate fuels without requiring costly steps.

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