Details

Autor(en) / Beteiligte

• Bundhoo, Zumar M.A.

Titel

Potential of bio-hydrogen production from dark fermentation of crop residues: A review

Ist Teil von

• International journal of hydrogen energy, 2019-06, Vol.44 (32), p.17346-17362

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This study provided an estimate of the potential of bio-hydrogen production from dark fermentation of crop residues on a worldwide scale. The different crop residues reviewed included sugarcane tops, leaves and bagasse, corn straw, corn cob and corn stover, wheat straw, rice straw and husk, soybean straw, oil palm trunk and empty fruit bunch, sugar beet pulp, cassava residue, barley straw and sweet sorghum bagasse. Among these crop residues, wheat and rice straws are produced in the highest amount although sugarcane dominates crop production on a worldwide scale. Based on the bio-hydrogen yields reported in literature, estimated worldwide bio-hydrogen potential is highest for untreated rice straw at 58,002 Mm3/year followed by untreated wheat straw at 34,680 Mm3/year. This corresponds to a bio-energy potential of 623 PJ/year and 373 PJ/year for raw rice straw and wheat straw respectively while pre-treatment of the crop residues significantly increases the bio-hydrogen and bio-energy potential. While dark fermentation of crop residues offers a huge bio-energy potential, the process suffers from several constraints that hinder its implementation. As such, coupling of the dark fermentation process with the anaerobic digestion process as a two-stage process seems the most economically viable option for large-scale implementation. •Crop residues represent a huge potential for global bio-hydrogen production.•Wheat and rice straws are generated in the highest amount each year.•Estimated global bio-energy potential is the highest for rice straw at 623 PJ/year.•Pre-treatments play a key role in improved bio-hydrogen production.