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

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dc.creatorBakari, Ramadhani
dc.creatorKivevele, Thomas
dc.creatorHuang, Xiao
dc.creatorJande, Yusufu A. C.
dc.date2021-05-28T09:51:09Z
dc.date2021-05-28T09:51:09Z
dc.date2021
dc.date.accessioned2022-10-20T13:09:29Z
dc.date.available2022-10-20T13:09:29Z
dc.descriptionFull text article. Also available at https://doi.org/10.1021/acsomega.0c06318
dc.descriptionIn 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.
dc.identifierBakari, 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.
dc.identifierDOI: https://doi.org/10.1021/acsomega.0c06318
dc.identifierhttp://hdl.handle.net/20.500.12661/3266
dc.identifier.urihttp://hdl.handle.net/20.500.12661/3266
dc.languageen
dc.publisherAmerican Chemical Society
dc.subjectRice
dc.subjectRice husk
dc.subjectrice husk biomass
dc.subjectSub- and supercritical water conditions
dc.subjectAutoclave reactor
dc.subjectTemperature
dc.subjectBiomass
dc.subjectWater gasification
dc.subjectRice husk
dc.subjectSupercritical water
dc.titleSub- and supercritical water gasification of rice husk: parametric optimization using the I-optimality criterion
dc.typeArticle

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