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  • Hydrogen and methane yields of untreated, water-extracted and acid (HCl) treated maize in one- and two-stage batch assays

    Author(s)
    Pakarinen, OM
    Kaparaju, PLN
    Rintala, JA
    Griffith University Author(s)
    Kaparaju, Prasad
    Year published
    2011
    Metadata
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    Abstract
    In the present study, two-stage H2 and CH4 production was compared with one-stage CH4 production from maize subjected to water extraction and acid (HCl) treatment. In addition, the effect of duration (2 and 14 days) of the first-stage H2 process on the H2 yields and subsequent CH4 yields from the second-stage was also investigated. Results showed that the average H2 yields from untreated maize were 5.6 and 9.9 ml/g volatile solids added (VSadded) after 2 and 14 days, respectively. On the other hand, H2 yields from water-extracted and HCl-treated maize were 18.0 and 20.5 ml/gVSadded (14 d), respectively. On comparison to ...
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    In the present study, two-stage H2 and CH4 production was compared with one-stage CH4 production from maize subjected to water extraction and acid (HCl) treatment. In addition, the effect of duration (2 and 14 days) of the first-stage H2 process on the H2 yields and subsequent CH4 yields from the second-stage was also investigated. Results showed that the average H2 yields from untreated maize were 5.6 and 9.9 ml/g volatile solids added (VSadded) after 2 and 14 days, respectively. On the other hand, H2 yields from water-extracted and HCl-treated maize were 18.0 and 20.5 ml/gVSadded (14 d), respectively. On comparison to one-stage CH4 assays, the average increase in CH4 yields from two-stage assays with 2 d H2 stage were 7, 9 and 27% for untreated, water-extracted and HCl-treated maize, respectively.
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    Journal Title
    International Journal of Hydrogen Energy
    Volume
    36
    Issue
    22
    DOI
    https://doi.org/10.1016/j.ijhydene.2011.08.028
    Subject
    Chemical sciences
    Engineering
    Environmental engineering not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/173663
    Collection
    • Journal articles

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