Pilot project at Hazira, India, for capture of carbon dioxide and its biofixation using microalgae
2016
Yadav, Anant | Choudhary, Piyush | Atri, Neelam | Teir, Sebastian | Mutnuri, Srikanth
The objective of the present study was to set up a small-scale pilot reactor at ONGC Hazira, Surat, for capturing CO₂ from vent gas. The studies were carried out for CO₂ capture by either using microalgae Chlorella sp. or a consortium of microalgae (Scenedesmus quadricauda, Chlorella vulgaris and Chlorococcum humicola). The biomass harvested was used for anaerobic digestion to produce biogas. The carbonation column was able to decrease the average 34 vol.% of CO₂ in vent gas to 15 vol.% of CO₂ in the outlet gas of the carbonation column. The yield of Chlorella sp. was found to be 18 g/m²/day. The methane yield was 386 l CH₄/kg VSfₑd of Chlorella sp. whereas 228 l CH₄/kg VSfₑd of the consortium of algae.
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