Sub- and supercritical water gasification of rice husk: parametric optimization using the I-optimality criterion

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dc.contributor.author Bakari, Ramadhani
dc.contributor.author Kivevele, Thomas
dc.contributor.author Huang, Xiao
dc.contributor.author Jande, Yusufu A. C.
dc.date.accessioned 2021-05-28T09:51:09Z
dc.date.available 2021-05-28T09:51:09Z
dc.date.issued 2021
dc.identifier.citation Bakari, R., Kivevele, T., Huang, X., & Jande, Y. A. (2021). Sub- and supercritical water gasification of rice husk: parametric optimization using the I-optimality criterion. ACS Omega, 2021(6), 12480−12499. en_US
dc.identifier.other DOI: https://doi.org/10.1021/acsomega.0c06318
dc.identifier.uri http://hdl.handle.net/20.500.12661/3266
dc.description Full text article. Also available at https://doi.org/10.1021/acsomega.0c06318 en_US
dc.description.abstract In this study, rice husk biomass was gasified under sub- and supercritical water conditions in an autoclave reactor. The effect of temperature (350–500 °C), residence time (30–120 min), and feed concentration (3–10 wt %) was experimentally studied using the response surface methodology in relation to the yield of gasification products. The quadratic models have been suggested for both responses. Based on the models, the quantitative relationship between various operational conditions and the responses will reliably forecast the experimental outcomes. The findings revealed that higher temperatures, longer residence times, and lower feed concentrations favored high gas yields. The lowest tar yield obtained was 2.98 wt %, while the highest gasification efficiency and gas volume attained were 64.27% and 423 mL/g, respectively. The ANOVA test showed that the order of the effects of the factors on all responses except gravimetric tar yield follows temperature > feed concentration > residence time. The gravimetric tar yield followed a different trend: temperature > residence time > feed concentration. The results revealed that SCW gasification could provide an effective mechanism for transforming the energy content of RH into a substantial fuel product. en_US
dc.language.iso en en_US
dc.publisher American Chemical Society en_US
dc.subject Rice en_US
dc.subject Rice husk en_US
dc.subject rice husk biomass en_US
dc.subject Sub- and supercritical water conditions en_US
dc.subject Autoclave reactor en_US
dc.subject Temperature en_US
dc.subject Biomass en_US
dc.subject Water gasification en_US
dc.subject Rice husk en_US
dc.subject Supercritical water en_US
dc.title Sub- and supercritical water gasification of rice husk: parametric optimization using the I-optimality criterion en_US
dc.type Article en_US


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