Task 33 is a working group of international experts with the aim to promote the commercialization of efficient, economical, and environmentally preferable thermal biomass gasification processes.

Thermal biomass gasification is a process converting cellulosic biomass into:
- heat/power and steam
and/or
- synthesis gas, which can be used for production of:
- liquid fuels (biodiesel)
- hydrogen
- methane
- mixed alcohols
- other chemicals