Staged pyrolysis-catalytic gasification process systems for hydrogen production from biomass waste

A staged pyrolysis-catalytic gasification process system for hydrogen production from biomass waste, comprising:

• (1) drying the biomass waste, and crushing the biomass waste to obtain crushed biomass waste with a particle size of not greater than 3 mm;
• (2) continuously adding the crushed biomass waste obtained in step (1) as feed material into a cascading pyrolysis device, processing the feed material through a roasting section, a thermal premixing section, a pyrolysis gasification section, and a catalytic reforming section sequentially under an action of gravity to obtain semi-coke and volatile matter, periodically discharging the semi-coke from a bottom of the cascading pyrolysis device, and filtering the volatile matter through the semi-coke accumulated in a catalytic conversion section to remove fly ash to obtain high temperature pyrolysis gas;
• (3) continuously introducing the high temperature pyrolysis gas into a first atmospheric catalytic converter, to cause that tar in the high temperature pyrolysis gas undergoes catalytic cracking to obtain hydrogen-rich fuel gas;
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• (4) continuously introducing the hydrogen-rich fuel gas obtained in the first atmospheric catalytic converter into a second atmospheric catalytic converter, to cause that alkane gas in the hydrogen-rich fuel gas undergoes catalytic cracking to produce hydrogen, and hydrogen-enriched fuel gas is produced at a bottom of the second atmospheric catalytic converter.