NUMERICAL STUDIES OF A TWO-STAGE THERMOCHEMICAL BIOMASS PROCESSING IN A FIXED BED PLANT WITH A CAPACITY OF 1250 kg/h

• Date: 2023
• Author Affiliations: B. Rokhman — Institute of Thermal Energy Technologies of NAS of Ukraine, Kyiv, Ukraine. Institute of Renewable energy of NAS of Ukraine, Kyiv, Ukraine.; S. Kobzar — Institute of Thermal Energy Technologies of NAS of Ukraine, Kyiv, Ukraine. Institute of Engineering Thermophysics of NAS of Ukraine, Kyiv, Ukraine.
• Keywords: keywords
• Main Authors: Rokhman, B., Kobzar, S.
• Format: Article
• Language: Ukrainian
• Published: Institute of Renewable Energy National Academy of Sciences of Ukraine 2023
• Subjects: fixed bed; biomass; Bagasse; thermal conductivity; steam-air gasification; conductive; radiation; heat transfer; gas; temperature.
• Online Access: https://ve.org.ua/index.php/journal/article/view/424
• Journal Title: Vidnovluvana energetika

Using the developed models describing the processes of biomass pyrolysis (Bagasse) and gasification of its coke-ash residue, detailed information was obtained on the design characteristics of the reactor, the yield and composition of pyrolysis gases, aerodynamics, heat and mass transfer and the chemical reaction of the gas-dispersed medium. These results were used in the development of two original designs of plants for thermochemical processing of biomass with a Bagasse capacity of 1250 kg/h and 232.3 kg/h (dry weight). In the plant with a high capacity of 1250 kg/h, one pyrolyzer has two gasifiers for the conversion of Bagasse coke-ash particles: an internal gasifier with a capacity of 68 kg/h and an external one with a capacity of 271 kg/h. With a low productivity of 232.3 kg/h, only an external gasifier is installed per pyrolyzer.