Poster presentation

Comparative study of modern bio-char production methods

Rodriguez Arciniegas Nelson Ariel

Far Eastern Federal University, Vladivostok, Russia

Biochar is a kind of charcoal that can be produced by carbonizing agricultural and forestry waste, or any other organic matter in the absence of oxygen. In this process three sub-products are created: first biochar, second liquid fuel, and third gas. The application of biochar to the soil has two major advantages: First, it improves agricultural soil by increasing the availability of nutrients, avoiding leaching from fertilizers, retaining water, absorbing pollution (specially heavy metals), and others. Second, it keeps the carbon from going back to the atmosphere for hundreds or more years which is a great mitigating measure against climate change (the less carbon in the atmosphere the less the temperature increases). Modern methods strive to maximize the amount of biochar produced and minimize the possible negatives effects of its production so that the benefits are much higher. The aim is to reduce or eliminate the need of external sources of energy by utilizing the subproducts to power the process. There are a few modern ways in which the anaerobic carbonization of biomass can be done in alignment with those parameters, namely: pyrolysis,microwave carbonization,and hydrothermal carbonization. This study compares the three methods in terms of the amounts of biochar - subproducts obtained; the extent to which additional sources of power are required; their possible negative effect; and the costs of the machines employed.






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