It is well known that carbonization methods, such as pyrolysis and hydrothermal carbonization, lead to the production of three fractions, namely chars/hydrochars, bio-oil, and biogas. The use of these by-products was exhaustively cited in the energetic, environmental and agricultural fields. However, for bio-oil, these solutions were not properly exploited in the agricultural field, although presenting interesting contents in N, P, K nutrients especially when the feedstock is lignocellulosic biomass, due to their high acidity and to their significant content in organic materials.
According to you, is it interesting to follow this research path, where bio-oil could lead to the production of soil fertilizers? and if so, what are the best techniques that could be used for a proper nutrients recovery, all by taking into account the physio-chemical properties of the bio-oil?
Take a look at this project which I worked on years ago. There is a very good opportunity to react N compounds with primary pyrolysis products to make a liquid fertiliser, or even a solid and the char can also be used as a biochar blended in with it.
Plant trials showed very good results in terms of plant growth and quality.
https://cordis.europa.eu/project/rcn/48187/factsheet/en
https://publications.aston.ac.uk/id/eprint/18728/1/Studentthesis-2013.pdf
Contact me on: [email protected] for further information. I also made some liquids myself which worked very well as a fertiliser.
There is little or way to recover other nutrients from pyrolysis liquids, unless you make a wood vinegar.
- Badges
- Science topic
- Similar topics
- Mathematics
- Statistics
- Statistical Modeling