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Combination with biomass pyrolysis and dry/steam reforming for adjustable H/CO syngas production

Journal of Thermal Analysis and Calorimetry, ISSN: 1588-2926, Vol: 149, Issue: 8, Page: 3497-3512
2024
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Article Description

A two-stage process of biomass pyrolysis and dry/steam reforming for adjustable H/CO syngas production is proposed. This process can not only control the ratio of H/CO, but also realize the utilization of coke generated in the gasification process and reduce the energy consumption of biomass gasification, as well as the utilization of CO. The process model was built after the pyrolysis experiment, and the thermodynamics of dry/steam reforming was studied under different reforming temperature, CO/C, and HO/C. With the increase in reforming temperature, the volume of CO increases gradually, and the volume of H increases first and then decreases. With the increase in CO/C, the volume of CO increases gradually and the volume of H decreases gradually, while with the increase in HO/C, the volume of CO decreases and the volume of H increases, so diverse-H/CO-ratio syngas can be obtained by adjusting the HO and CO input as well as the reforming temperature. For the production of syngas with H/CO = 2, by comparing the total volume of gas produced and energy consumption, the optimum reforming conditions are obtained: CO/C = 0.5, HO/C = 2, and the reforming temperature is 770 ℃. Similarly, the optimum reforming conditions for the production of syngas with H/CO = 3 are: CO/C = 0, HO/C = 2, and the reforming temperature is 770 ℃.

Bibliographic Details

Huaqing Xie; Zhengri Shao; Zhenyu Yu; Lulin Wang; Ciying Huang; Shichen Yang

Springer Science and Business Media LLC

Physics and Astronomy; Dentistry; Chemistry; Materials Science

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