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Bioethanol Production from Unpretreated Cellulose under Neutral Selfsustainable Hydrolysis/Hydrogenolysis Conditions Promoted by the Heterogeneous Pd/Fe₃O₄ Catalyst.

ABSTRACT: The direct conversion of untreated microcrystalline cellulose into C₂-C₃ alcohols, through a one-pot process promoted by the heterogeneous bimetallic Pd/Fe₃O₄ catalyst, is presented. The process is selfsustainable without the addition of external molecular hydrogen or acid/basic promoters and is mainly selective toward ethanol. At 240 °C, a complete cellulose conversion was reached after 12 h with an ethanol molar selectivity of 51% among liquid products. The synergistic effect played by water (which aids in the chemical pretreatment means of cellulose through the hydrolysis process) and the Pd/Fe₃O₄ catalyst (which catalyzes the hydrogenolysis reaction driving the pattern of obtained products) is elucidated.

SUBMITTER: Gumina B

PROVIDER: S-EPMC6648557 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Bioethanol Production from Unpretreated Cellulose under Neutral Selfsustainable Hydrolysis/Hydrogenolysis Conditions Promoted by the Heterogeneous Pd/Fe3O4 Catalyst.

Gumina Bianca B Espro Claudia C Galvagno Signorino S Pietropaolo Rosario R Mauriello Francesco F

ACS omega 20190107 1

The direct conversion of untreated microcrystalline cellulose into C2-C3 alcohols, through a one-pot process promoted by the heterogeneous bimetallic Pd/Fe3O4 catalyst, is presented. The process is selfsustainable without the addition of external molecular hydrogen or acid/basic promoters and is mainly selective toward ethanol. At 240 °C, a complete cellulose conversion was reached after 12 h with an ethanol molar selectivity of 51% among liquid produc ...[more]

PMID: 31459334

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