Scientists at Tomsk Polytechnic University (TPU) have figured out how to recycle one of the forest industry’s waste products – “ballast water” from pyrolysis oil – in an environmentally friendly way.
According to the authors of the study, the forest industry constantly accumulates waste wood – sawdust, wood shavings, and chips. This waste is not economically viable for the production of building materials, furniture, or fuel pellets.
The researchers claim that pyrolysis (high-temperature decomposition in an oxygen-free environment) is a promising way to recycle wood waste. The products of pyrolysis include semi-coke, combustible gas, and pyrolysis oil.
The TPU scientists suggested using pyrolysis water as a liquid-phase component of coal-water fuel (CWF). This is a liquid composite fuel that can include various combustible components – for example, low-grade coals, coal enrichment waste, liquid combustible components, and municipal solid waste.
The authors of the study also note that by increasing the heat of coal-water fuel combustion, it is possible to reduce the consumption of fossil fuels by 15-20%, depending on their type and the pyrolysis process. This could potentially increase the resource efficiency of the technology.
The study was carried out by Tomsk Polytechnic University in cooperation with industrial partner “Siberian BioUgol” LLC.
The results of the study were published in the International Journal of Energy Research.
Sourse: sputniknews.com
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