Chapter 12
Biomass As A Sustainable Energy Source For The Future · 9 exercises
Problem 1
What are the main constituents of woody biomass?
6 step solution
Problem 1
Dry woody biomass can be represented with the molecular formula \(\mathrm{CH}_{1.4} \mathrm{O}_{0.6}\). A sample of this biomass is torrefied to give a product gas with the following composition (on a mass basis): \(\mathrm{H}_{2} \mathrm{O}, 51 \%\); acetic acid \(\left(\mathrm{CH}_{3} \mathrm{COOH}\right), 20 \%\); \(\mathrm{CO}_{2}, 26 \%\); and \(\mathrm{CO}, 3 \%\).
4 step solution
Problem 3
Name the (potential) heat sources and sinks in a typical torrefaction process.
2 step solution
Problem 5
Name the main constituents of torrefaction gas.
6 step solution
Problem 7
Name five potential uses of torrefied biomass.
6 step solution
Problem 8
Which properties of biomass are improved by torrefaction?
3 step solution
Problem 11
What are the safety issues and risks involved in torrefaction processes?
4 step solution
Problem 12
What is the impact of the torrefaction temperature on the properties of the product biomass?
4 step solution
Problem 14
Name a few binder additives used in pelletizing of torrefied biomass. When is it necessary to use them?
4 step solution