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EUBCE 2026 - Haochen SUN - Development of biomass Chemical Looping Partial Oxidation and Hydrogen Generation Process for Flexible Synthesis of Green Chemicals

Development of biomass Chemical Looping Partial Oxidation and Hydrogen Generation Process for Flexible Synthesis of Green Chemicals

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Gasification for synthesis gas production

Integrated gasification, gas cleaning and upgrading demonstration

Development of biomass Chemical Looping Partial Oxidation and Hydrogen Generation Process for Flexible Synthesis of Green Chemicals

Short Introductive summary

This study introduces a novel chemical looping system, known as chemical looping partial oxidation and hydrogen generation (CLPH) process, which can generate inherently separated syngas from biomass, thus presenting a good application prospect for biogas-synthesis. In this work, four MFe2O4 (M=Ni, Co, Ca, Ba) OCs were chosen according to the modified Ellingham diagram, and their performances as well as the reaction pathway of OC with biomass char were comprehensively investigated. The results show that all OCs exhibit a good solid-solid reactivity, but the CO selectivity of CaFe2O4 and BaFe2O4 (around 60%) are higher than that of CoFe2O4 and NiFe2O4 (around 20%). Additionally, the cycle performance of CaFe2O4 is worse than that of BaFe2O4, which is owing to the poor lattice oxygen self-healing property. Thus, BaFe2O4 was chosen as the ideal OC for the CLPH process. A successful biomass gasification process for the generation of inherently separated syngas was developed, achieving a carbon conversion rate of 90%, CO-rich gas yield of 1.575 Nm3/kg (CO 61%, CO2 39%) and high-purity H2 (95%) yield of 1.963 Nm3/kg over 10 cycles.

Presenter

Moderator portrait

Haochen SUN

Tampere University, FINLAND

Presenter's biography

I completed my PhD in 2024 from Institute of Coal Chemistry, university of Chinese Academy of Sciences (China). Now I am doing postdoctoral research in Tampere University, Finland. My work focused on biomass utilization, chemical looping technology, , waste management, etc.

Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited


Co-authors:

H. Sun, Tampere University, FINLAND
C. He, Tampere University, FINLAND

Session reference: 4AO.8.2