Manufacturing method for co-production of hydrogen gas and biochar

Abstract

A manufacturing method for co-production of hydrogen gas and biochar includes utilizing a hydrogen production system to sequentially perform a hydrogen production step and a heating step on a biomass, wherein the hydrogen production step generates the hydrogen gas and waste heat. The hydrogen production system includes a reactor configured to accommodate a catalyst and the biomass, a gas supply module communicated with the reactor and configured to supply oxygen gas, and a liquid supply module communicated with the reactor and configured to provide methanol liquid and water, wherein the oxygen gas to the methanol liquid (O2/C) has a specific molar ratio and the water to the methanol liquid (S/C) has a specific molar ratio. The disclosed biochar is produced by recovering the waste heat, which can effectively recover waste heat, improve energy efficiency, and be beneficial to the development of renewable energy technologies and promote a circular bioeconomy.

Dependencies are inferred from the claim text.