Biomass gasification using steam and oxygen is an already mature technology for extracting hydrogen, which requires heat at above 700°C. To generate the heat for gasification, traditionally, some of the biomass itself is burnt. But this combustion emits several...
![Hot Solar Biomass Gasifier Makes Clean Hydrogen-Rich Syngas](https://www.solarpaces.org/wp-content/uploads/Forestry-waste.jpg)