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Hydrodeoxygenation of bio-crude in supercritical hexane with sulfided CoMo and CoMoP catalysts supported on MgO: A model compound study using phenol

Paper ID Volume ID Publish Year Pages File Format Full-Text
42976 45949 2009 8 PDF Available
Title
Hydrodeoxygenation of bio-crude in supercritical hexane with sulfided CoMo and CoMoP catalysts supported on MgO: A model compound study using phenol
Abstract

Hydrodeoxygenation (HDO) of bio-crude was investigated using phenol as a model compound in supercritical hexane at temperatures of 300–450 °C and cold pressure of hydrogen 5.0 MPa with MgO-supported sulfided CoMo with and without phosphorus as a catalyst promoter. The oily products after hydro-treatment were characterized by GC/MS and FTIR. Both MgO-supported catalysts proved to be effective for hydrodeoxygenation of phenol leading to significantly increased yields of reduced hydrocarbon products, such as benzene and cyclohexyl-aromatics, at temperatures higher than 350 °C, while CoMoP/MgO showed superior activity in HDO of phenol. With the presence of CoMoP/MgO for 60 min and at 450 °C, the treatment of phenol yielded a product containing approximately 65 wt.% benzene and >10 wt.% cyclohexyl-compounds. The fresh and spent catalysts were thoroughly characterized by ICP-AES, N2 isothermal adsorption, XRD, XPS and TGA, and the effects of the phosphorus as the catalyst promoter and MgO as a basic support were discussed.

Graphical abstractHydrodeoxygenation of bio-crude was investigated using phenol as the model compound in supercritical hexane at 300–450 °C and 5.0 MPa hydrogen (cold pressure) with MgO-supported sulfided CoMo with and without phosphorous as the catalyst promoter. With CoMoP/MgO for 60 min and at 450 °C, the treatment of phenol yielded a product containing approximately 65 wt.% benzene.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Bio-crude; Phenol; Hydrodeoxygenation; CoMo/MgO; CoMoP/MgO; Sulfided catalysts
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Hydrodeoxygenation of bio-crude in supercritical hexane with sulfided CoMo and CoMoP catalysts supported on MgO: A model compound study using phenol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 360, Issue 2, 1 June 2009, Pages 242–249
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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