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Synthesis of dimethyl carbonate over waste eggshell catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
55240 47044 2012 5 PDF Available
Title
Synthesis of dimethyl carbonate over waste eggshell catalyst
Abstract

Dimethyl carbonate is an important methylating and carbonylating agent. Eggshell catalysts, prepared from eggshell waste, were tested in the synthesis of dimethyl carbonate from propylene carbonate and methanol. The eggshell-derived catalyst was characterized by using techniques of nitrogen physisorption, X-ray diffraction (XRD), thermogravimetric analysis (TGA) and energy dispersive X-ray spectroscopy (EDS). The effects of calcination temperature on structure and activity of eggshell catalysts were investigated. The reusability of eggshell catalysts was also examined. It was found that highly active, reusable solid catalyst was obtained by just calcining eggshell. Dimethyl carbonate yield of 75% can be achieved at 25 °C and 1 atm pressure. Utilization of eggshell as a catalyst for dimethyl carbonate production not only provides a cost-effective and environmental friendly way of recycling this solid eggshell waste, but also makes the process of dimethyl carbonate production economic and fully ecologically friendly.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (66 K)Download as PowerPoint slideHighlights► Eggshell waste as catalyst precursors. ► Catalyst for transesterification of propylene carbonate and methanol. ► Calcination temperature affected the structure and activity of eggshell catalysts. ► Highly active and reusable solid catalyst derived from eggshell waste.

Keywords
Transesterification; Dimethyl carbonate; Environmental chemistry; Heterogeneous catalysis; Eggshell waste
First Page Preview
Synthesis of dimethyl carbonate over waste eggshell catalyst
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 190, Issue 1, 1 August 2012, Pages 107–111
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis