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Liquid phase hydrogenation of crotonaldehyde over copper incorporated in MCM-48

Paper ID Volume ID Publish Year Pages File Format Full-Text
40848 45868 2012 7 PDF Available
Title
Liquid phase hydrogenation of crotonaldehyde over copper incorporated in MCM-48
Abstract

A series of Cu/MCM-48 catalysts is studied for the liquid phase hydrogenation of crotonaldehyde. Copper is incorporated in MCM-48 following a classical hydrothermal synthesis or by wet impregnation of the MCM-48 precursor (before eliminating the directing agent) with Cu(AcAc)2. The copper loading is in the 2–20 wt% range. Characterization results from TPR and XRD indicate that copper crystals supported on MCM-48 surface coexist with copper incorporated in the MCM-48 walls. The presence of Cu+ in MCM-48 is concluded from characterization with FTIR of adsorbed CO. This species would be the responsible for the relatively high selectivity of Cu/MCM-48. These catalysts show approximately 50% of selectivity against 7% of Cu/SiO2 (both values measured at 10% of conversion).

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (141 K)Download as PowerPoint slideHighlights► Cu/MCM-48 catalysts are prepared and characterized. ► Copper crystals coexists with highly dispersed copper species. ► The Cu/MCM-48 catalysts are selective toward crotyl alcohol.► The catalytic patterns can be explained on the basis of characterization results.

Keywords
Copper catalysts; MCM-48; Crotonaldehyde; CO adsorption; Selective hydrogenation
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Liquid phase hydrogenation of crotonaldehyde over copper incorporated in MCM-48
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 437–438, 26 September 2012, Pages 72–78
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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