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- W3097402414 abstract "Identifying and tackling indispensable developments in microalgae-based bio-economy should be a priority to unravel the contentious water-food-energy-environment nexus that algae inhabit. This research investigated the catalytic and non-catalytic steam gasification of two types of lipid-extracted microalgae biomasses, Chlorella vulgaris and Spirulina platensis in a thermogravimetric analyzer coupled with online mass spectrometry . A hybrid-functional mixture consisting of CaO naturally derived from waste eggshell as catalyst and sorbent, Ni as catalyst and Y 2 O 3 as support was employed during the gasification that mainly generated H 2 , CO and CO 2 . The varied CaO loading (10 to 50 wt%) showed an evident effect on the overall gasification of lipid-extracted microalgae biomass, indicating an optimal CaO loading of 40 wt% for Ni-CaO-Y 2 O 3 mixed materials which enabled 400.81 and 324.93 mL g −1 of H 2 yield, with maximum purity of up to 53.25 and 41.82 vol% in gaseous product for Chlorella vulgaris and Spirulina microalgae residues, respectively. The addition of Ni, Y 2 O 3 in mixed form (Ni-CaO, Ni-CaO-Y 2 O 3 , CaO-Y 2 O 3 and Ni-Y 2 O 3 ) drastically enhanced H 2 yield and its purity. Ni-CaO produced the maximum H 2 yield and purity of 497.29 and 435 mL g −1 , and 63.15 and 45.78 vol% for Chlorella vulgaris and Spirulina platensis , respectively. • Main gasification of algal residual biomass occurred from 350 to 500 °C. • Steam increased H 2 products via reforming, water gas and WGS reactions. • A hybrid-functional mixture of Ni-CaO-Y 2 O 3 drastically enhanced H 2 yield and its purity. • Ni-CaO achieved the maximum H 2 yield and purity for CV and SP gasification." @default.
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- W3097402414 date "2020-12-01" @default.
- W3097402414 modified "2023-09-26" @default.
- W3097402414 title "Hydrogen-rich energy recovery from microalgae (lipid-extracted) via steam catalytic gasification" @default.
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- W3097402414 doi "https://doi.org/10.1016/j.algal.2020.102102" @default.
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