The document discusses three main categories of biomass energy conversion technologies: combustion, gasification, and pyrolysis. Combustion is the most common and simplest process, directly burning biomass to produce heat and electricity. Gasification converts biomass into gas at high temperatures for gas production. Pyrolysis uses thermal decomposition in the absence of oxygen to produce liquid bio-oil or pyrolysis oil from biomass.

6. we used to produce energy from biomass are
three main categories:
energy conversion technologies-
o Combustion
o Gasification
o Pyrolysis

7. Primary energy conversion technologies
 Combustion - direct combustion of biomass is the most common way of
converting biomass to energy - both heat and electricity. Compared to the gasification
and pyrolysis it is the simplest and most developed.
 Gasification - gasification is a high-temperature (1200-1400 Degree Celsius)thermo
chemical conversion process but the process is used for production of gas, instead of
heat.
 Pyrolysis - thermal decomposition occurring in the absence of oxygen. We use
pyrolysis to produce a liquid fuel, bio-oil or pyrolysis oil.

14. Biofuel Fossil fuel
Bio-fuel is produced directly from Fossil fuels are produced by either
plant matter typically corn, sugar the decomposition of plant or
cane, sugar beets, or cellulose animal matter over long periods of
transforming it into alcohol. time under certain conditions such
as high temperature and pressure.
Fossil fuels are coal, oil, and
natural gas.