Subject
biomass
biomass energy production
26
biofuel
14
biogas
9
renewable energy source
9
biodiesel
8
alga
7
energy
7
gasification
7
methane
7
pyrolysis
7
renewable energy
7
biomass production
6
ethanol
6
fuel
6
bioconversion to fuel
5
biomass gasification
5
conversion to fuel
5
energy conversion
5
renewable resource
5
carbon capture
4
coal
4
green energy
4
solar energy
4
sustainability
4
wind energy
4
battery
3
bioreactor
3
chemicals
3
crop
3
diesel
3
energy supply
3
hydrogen
3
lignin
3
thermochemical process
3
Fischer Tropsch synthesis
2
alcohol
2
anode
2
biodegradation
2
bioeconomy
2
biological energy conversion
2
carbon capture and storage (ccs)
2
carbon dioxide
2
carbon sequestration
2
catalyst
2
catalytic conversion
2
catalytic oxidation
2
cellulose
2
charcoal
2
chemical engineering
2
more ...