Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 10, Issue 2, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2022.107188
Keywords
Skeletal Co; Catalytic transfer hydrogenation; Ethyl levulinate; gamma-valerolactone; Biomass conversion
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Funding
- China's Key Project of Intergovernmental International Scientific and Technological Innovation Cooperation [2017YFE0127100]
- Shanghai Pujiang Program [20PJ1404800]
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This study developed a fast and easy handled batch air diffusion method to prepare an air-stable skeletal Co catalyst, which was successfully applied in the hydrogenation of ethyl levulinate.
A fast and easy handled batch air diffusion method (BA) was developed to obtain a non-pyrophoric, air-stable skeletal Co catalyst (A-SCo) for catalytic transfer hydrogenation (CTH) of ethyl levulinate (EL) into gamma-valerolactone (GVL). A batch air diffusion method (BA) consumed the active adsorbed H-2 on the surface of skeletal Co (SCo) but maintained structure catalyst and avoided excessive oxidation of metallic Co, Ni and Al. The 96% yield of GVL was obtained over the A-SCo and HZSM-5 at 140 degrees C. Further study of CTH process shows that metallic state of A-SCo provides important active sites for dehydrogenation of i-PrOH, which is critical step for hydrogenation of EL. This study provides a simple, efficient method to prepare an air-stable skeletal metal catalyst for CTH and hydrogenation process.
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