THERMODYNAMIC ANALYSIS OF BIOCHAR GASIFICATION

UDC 662.765:536.7

  • Michael Yacob Ioelovich Designer Energy Ltd. Email: ioelovichm@gmail.com
Ключевые слова: biomass, pyrolysis, biochar, gasification, thermodynamic functions, thermodynamic analysis

Аннотация

In this research, a thermodynamic analysis of the gasification process of biochar obtained by pyrolysis of wood biomass was carried out. Thermodynamic functions, such as enthalpies and entropies of the formation of biochar, water vapor, carbon oxide, and hydrogen at various temperatures and pressures were determined. The thermodynamic (TD) studies showed that the gasification process is endothermic, while the entropy of this process is positive. From TD calculations, it follows that the gasification process of biochar cannot be carried out at normal pressure if the temperature of this process is below boundary Tb=895 K because the thermodynamic Gibbs potential under these conditions has a positive value. Thus, the gasification process of the biochar can be implemented only at quite high temperatures. It has been established that increasing the gasification temperature above Tb increases the equilibrium constant, which should enhance the yield of biogas. On the other hand, pressure is a negatory factor for the gasification process, since its increase leads to a decrease in the equilibrium constant. However, the negative impact of pressure can be compensated by the rise in gasification temperature.

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Биография автора

Michael Yacob Ioelovich, Designer Energy Ltd.

Chief Chemist of Designer Energy Co., Head of Chemical Dep.

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Опубликован
2026-03-10
Как цитировать
1. Ioelovich M. Y. THERMODYNAMIC ANALYSIS OF BIOCHAR GASIFICATION // Химия растительного сырья, 2026. № 1. С. Online First. URL: https://journal.asu.ru/cw/article/view/16566.
Раздел
Технологии