how wood gasifier wirks?

Answer 1

wood stacked in closed double walled container ,high temperature steam is pass thro it with dffrent tubes is purely diffenrent path both will not mix, the wood will produce gas like fumes & bleeched various level pure gas is taken to various purpose even running a gas turbine or boiler.This method is adopted in combine cycle power generating plant mostly coal is used instead of wood (Same method sandal wood oil is distilled from sandal wood) I hope this will help you.

Answer 2

Wood gasification is the process of heating (T>400 C) wood in an oxygen-starved environment until volatile pyrolysis gases (carbon monoxide and hydrogen) are released from the wood. It additionally yields about 25% charcoal and lots of condensibles (tars).

Depending on the final use of the typically low-energy wood (producer) gas (~150 Btu/ft³ (5.6 MJ/m³)), the gases can be mixed with air or pure oxygen for complete combustion and the heat produced transferred to a boiler for energy distribution.

Otherwise, the gases can be cooled, filtered, and purified to remove tars (a major concern for any wood gasification process) and particulates and used as fuel for internal combustion engines, microturbines, and gas turbines.

Alternatively to the pyrolytic process outlined above, wood can be gasified with air to make "producer gas" (typically CO 22%; H2 18%; CH4 3%, CO2 6% and N2 51%).

Finally, wood can also be gasified with oxygen to make synthesis gas (typically 40% CO, 40% H2, 3% CH4 and 17% CO2) which can be used to make methanoI, ammonia and diesel fuel with known commercial catalytic processes.