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Synthesis, characterization and acid catalysis of solid acid from peanut shell

Paper ID Volume ID Publish Year Pages File Format Full-Text
40178 45845 2014 6 PDF Available
Title
Synthesis, characterization and acid catalysis of solid acid from peanut shell
Abstract

•A strong solid acid was prepared from peanut shell.•The structure of the solid acid was characterized in detail.•The functional groups on the solid acid were clearly revealed.•It exhibits excellent catalytic activity and recyclability in biodiesel production.

A strong Brønsted solid acid was synthesized by sulfonation of the partially carbonized agricultural biowaste peanut shell. The acidity of the Brønsted solid acid was characterized by X-ray diffraction (XRD), Fourier-transform infrared spectra (FT-IR) and solid-state nuclear magnetic resonance (NMR) spectroscopy. The characterization results show that sulfonation on the peanut shell carbon produces a carbon based solid acid containing three functional Brønsted acid sites: weak acidic OH groups, strong acidic COOH and SO3H groups. The acid strength of the solid acid is stronger than that of HZSM-5(Si/Al = 75), but still weaker than that of 100% H2SO4. The catalytic reaction tests indicate that this solid acid catalyst exhibits high activity and excellent recyclability for biodiesel production.

Graphical abstractA strong solid Brønsted acid was synthesized by sulfonation of the partially carbonized peanut shell. The structure and acidity of the solid acid were characterized by XRD, FT-IR and solid state NMR. The solid acid catalyst exhibits high activity in biodiesel production reaction and the spent solid acid can be recovered by easy operation.Figure optionsDownload full-size imageDownload high-quality image (254 K)Download as PowerPoint slide

Keywords
Solid acid; Peanut shell; Acidity; Biodiesel
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Synthesis, characterization and acid catalysis of solid acid from peanut shell
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 469, 17 January 2014, Pages 284–289
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us