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Journal of Nanomaterials
Volume 2014, Article ID 596584, 5 pages
Research Article

Effects of Acid Characteristics of Nanoporous MCM-48 on the Pyrolysis Product Distribution of Waste Pepper Stem

1Graduate School of Energy and Environmental System Engineering, University of Seoul, Seoul 130-743, Republic of Korea
2School of Environmental Engineering, University of Seoul, Seoul 130-743, Republic of Korea
3Department of Environmental Engineering, Sunchon National University, Suncheon, Jeonnam 540-950, Republic of Korea

Received 25 July 2014; Accepted 7 August 2014; Published 19 August 2014

Academic Editor: Ki-Joon Jeon

Copyright © 2014 Young-Kwon Park et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Nanoporous catalysts Si-MCM-48 and Al-MCM-48 were applied for the first time to the catalytic pyrolysis of waste pepper stem. Pyrolysis experiments were conducted at 550°C using Py-GC/MS to examine the product distribution rapidly. Phenolics were shown to be the most abundant product species of noncatalytic pyrolysis, whereas aliphatic and aromatic hydrocarbons were produced marginally. On the other hand, much larger quantities of furans and aliphatic and aromatic hydrocarbons were produced from the catalytic pyrolysis over MCM-48, while the production of phenolics was suppressed significantly. Al-MCM-48 showed a much higher catalytic activity than Si-MCM-48, which was attributed to its much higher acidity. The results of this study indicate that valuable chemicals can be produced from waste pepper stem using catalytic pyrolysis over an acidic nanoporous catalyst.