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

O. M. Pakarinen; P. L.N. Kaparaju; J. A. Rintala

doi:10.1016/j.ijhydene.2011.08.028

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

O. M. Pakarinen^*
, P. L.N. Kaparaju
, J. A. Rintala

^*Corresponding author for this work

Not published at VTT

University of Jyväskylä

Research output: Contribution to journal › Article › Scientific › peer-review

27 Citations (Scopus)

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 (VS_added) 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/gVS_added (14 d), respectively. On comparison to one-stage CH₄ assays, the average increase in CH₄ yields from two-stage assays with 2 d H ₂ stage were 7, 9 and 27% for untreated, water-extracted and HCl-treated maize, respectively.

Original language	English
Pages (from-to)	14401-14407
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	36
Issue number	22
DOIs	https://doi.org/10.1016/j.ijhydene.2011.08.028
Publication status	Published - Nov 2011
MoE publication type	A1 Journal article-refereed

Funding

This study was financed by the Finnish Graduate School for Energy Science and Technology and Nordic Energy Research (BioHydrogen 2007-2010). Authors wish to thank Mr Erkki Kalmari for providing the substrates and Ms Hanne Tähti for her help in laboratory analysis. Special thanks to David Agar for proofreading this manuscript.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Anaerobic digestion
Hydrogen
Maize
Methane
Pre-treatment
Two-stage

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10.1016/j.ijhydene.2011.08.028

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@article{47ee8bb9f96b4e8e8f71911e6ccd308c,

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

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 one-stage CH4 assays, the average increase in CH4 yields from two-stage assays with 2 d H 2 stage were 7, 9 and 27\% for untreated, water-extracted and HCl-treated maize, respectively.",

keywords = "Anaerobic digestion, Hydrogen, Maize, Methane, Pre-treatment, Two-stage",

author = "Pakarinen, \{O. M.\} and Kaparaju, \{P. L.N.\} and Rintala, \{J. A.\}",

year = "2011",

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doi = "10.1016/j.ijhydene.2011.08.028",

language = "English",

volume = "36",

pages = "14401--14407",

journal = "International Journal of Hydrogen Energy",

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TY - JOUR

T1 - Hydrogen and methane yields of untreated, water-extracted and acid (HCl) treated maize in one- and two-stage batch assays

AU - Pakarinen, O. M.

AU - Kaparaju, P. L.N.

AU - Rintala, J. A.

PY - 2011/11

Y1 - 2011/11

N2 - 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 H 2 stage were 7, 9 and 27% for untreated, water-extracted and HCl-treated maize, respectively.

AB - 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 H 2 stage were 7, 9 and 27% for untreated, water-extracted and HCl-treated maize, respectively.

KW - Anaerobic digestion

KW - Hydrogen

KW - Maize

KW - Methane

KW - Pre-treatment

KW - Two-stage

UR - https://www.scopus.com/pages/publications/80054013006

U2 - 10.1016/j.ijhydene.2011.08.028

DO - 10.1016/j.ijhydene.2011.08.028

M3 - Article

AN - SCOPUS:80054013006

SN - 0360-3199

VL - 36

SP - 14401

EP - 14407

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 22

ER -

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

Abstract

Funding

UN SDGs

Keywords

Access to Document

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