Sarma, Saurabh Jyoti; Brar, Satinder Kaur; Reigner, Jérémy; Le Bihan, Yann; Buelna, Gerardo
(2014).
Enriched hydrogen production by bioconversion of biodiesel waste supplemented with ferric citrate and its nano-spray dried particles.
RSC Advances
, vol. 4
, nº 91.
p. 49588-49594.
DOI: 10.1039/c4ra09057h.
Résumé
Increasing consumption of fossil fuels as well as the concern over pollution and global climate
change has accelerated the development of sustainable biofuel industry. Biodiesel, bioethanol
and biomethane are already commercially available as alternatives of fossil fuels and the search
for a more environmentally friendly biofuel, preferentially produced from non-food raw
materials and capable of fulfilling the transportation energy requirement of the globe for longer
duration, is going on. In this context, biohydrogen produced from waste biomass is an ideal
option. It has higher energy content compared to fossil and biofuels of equivalent mass and
produces water as the only major emission during combustion. In the present investigation, crude
glycerol (CG) generated as by-product of biodiesel production process has been used as
feedstock for biohydrogen production and different supplements have been evaluated for
increasing the product yield. Nano-spray dried ferric citrate particles have been found to enhance
the hydrogen production by 50.45 %. Hydrogen production using extremely low CG
concentration of 100 mg/L⁻¹ has been found to produce 22.7 mol-H₂ per kg CG; which is 2.75 folds
higher than 8.25 mol-H₂ per kg CG, known for dark fermentation.
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