NDLI: Hydrothermal conversion of macroalgae-derived alginate to lactic acid catalyzed by metal oxides

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Inside back cover

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Catalysis Science & Technology Vol - 6 Issue - 3

Catalysis Science & Technology Vol -5

Catalysis Science & Technology Vol -4

Catalysis Science & Technology Vol -3

Catalysis Science & Technology Vol -2

Catalysis Science & Technology Vol -1

Hydrothermal conversion of macroalgae-derived alginate to lactic acid catalyzed by metal oxides

Content Provider	Royal Society of Chemistry (RSC)
Author	Park, Geonu Jeon, Wonjin Woo, Hee Chul Ban, Chunghyeon Kim, Do Heui
Copyright Year	2016
Abstract	Alginate derived from macroalgae was evaluated as a biomass feedstock for the production of lactic acid using metal oxides as solid base catalysts under hydrothermal conditions. The CaO catalyst exhibited the highest catalytic performance, yielding about 13% lactic acid at 200 °C for 1 h, while other metal oxide catalysts exhibited little activity. The hydration of CaO to Ca(OH)2 provides Brønsted bases (OH−) in an aqueous medium. The lactic acid yields were proportional to the number of Brønsted bases. The CaO catalyst demonstrated nearly similar activity when it was used for the second time and the spent catalyst was successfully regenerated by calcination. The deactivation of the CaO catalyst during subsequent repeated uses arises from the loss of the available basic sites. Plausible reaction pathways for the catalytic conversion of alginate to lactic acid over CaO are also discussed.
Starting Page	1146
Ending Page	1156
Page Count	11
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	6
Issue Number	4
Journal	Catalysis Science & Technology
DOI	10.1039/c5cy00966a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Seaweed Acid Hydrothermal synthesis Solid Base Alginic acid Calcination Biomass
Content Type	Text
Resource Type	Article
Subject	Catalysis

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