Does anyone know of anyone who has successfully turned woody biomass into liquid biofuel? If so, any idea what the GHG emissions associated with it are and what's the overall efficiency?
Hi,
You can check the COHREN, European company website. They have developed the technology and proved it through gasification route. It may help you. Some more industries working in the same area and trying to prove it in Europe.
Hi,
There is no direct method for converting woody biomass to liquid fuel. If you going for direct gasification reaction it would be more expensive. If you going for bioprocess method reaction time would be very very higher to breakdown very complex molecular to smaller. only option is playing with oil extracting from biomass and to biofuel. Default GHG emission for all biofuel and high advance oil is CO2.
Hello ....The idea behind converting woody Biomass is already to convert thousand tons of this masses to energy under natural circumstances of Biosynthesis to reduce pollutant materials then to make use of energy ,so logically it is an economic process ,otherwise any attempts for create Diagensis lead to form Kerogen &Bitumeen as an intermediates to form oil and coal via Catagenesis is without any doubt costly.
There a lot of articles in the journal Biotechnology for Biofuels which have highlighted this issue. You can consult the reviews and research papers in the journal.
Dear Teri,
You could also check the LCA reports of the RENEW project http://www.renew-fuel.com/fs_documents.php
Regards,
Tom
I suggest you contact Prof. Antonio Velez on this issue. His email: [email protected]
In germany there is this process
http://dieselwest.de/index.php?id=16&L=1
from the alphakat process
http://www.alphakat-engineering.de/gallery2/main.php
I do not understand logic behind conversion of High Calorific value wood in to lower Calorific value as pyro-gas or biogas -Vinayak Gade
Hello..
Gasification followed by Fischer Tropsch is the most popular route for liquefaction of solid (Coal/ Biomass). Gasification is susceptible to type of fuel used and syngas composition varies. Secondly the gasification agent used (Steam and oxygen) are quite high CAPEX units and make the economics around building of Biomass to liquid fuel plant more unpleasant from investment perspective. With this in background, Biomas to liquid fuel is not very popular and seldom you will find its commercial application.
It is likely to happen in future that coal blend with Biomass IGCC units. The reason why it can be advantageous to gasify coal biomass in power plant is two fold: For efficiency reasons and for environmental reasons.
The efficiency advantage is attributed to the fact that use can be made of the more advanced combined cycle, where gas is fired in a gas turbine ( Brayton or Joule cycle) and the hot gases leaving the turbine are used to raise steam for a conventional steam ( Rankine) Cycle. The thermal power plant (boiler based) is firing coal in a conventional steam plant using only Rankine Cycle.
The efficiency for the gas firing in a state -of –the- art combined cycle is about 58%, a figure that has to be multiplied with the gasification efficiency of, for example 80%, resulting in an overall efficiency of 46.4%, whereas the efficiency of coal firing in conventional state of the art steam plant is about 45%.
I hope it will throw some light on the question raised in discussion.
Regards,
Shirish
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