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Nanocrystalline beta zeolite: An efficient solid acid catalyst for the liquid-phase degradation of high-density polyethylene

Paper ID Volume ID Publish Year Pages File Format Full-Text
48034 46488 2008 8 PDF Available
Title
Nanocrystalline beta zeolite: An efficient solid acid catalyst for the liquid-phase degradation of high-density polyethylene
Abstract

Three pairs of the proton form of beta zeolites with similar Si/Al ratios but notably different crystallite sizes (10–1500 nm) were prepared in basic or fluoride media and tested as catalysts for the liquid-phase degradation of high-density polyethylene at 380 °C and atmospheric pressure. Among these, a nanocrystalline beta zeolite with the lowest Si/Al ratio (10.7) and the smallest crystallite size (∼10 nm) was found to show a high degradation activity and a remarkable liquid products yield (∼80%), together with high selectivities for C7–C12 hydrocarbons, which is rationalized on the basis of its very large external surface area and its high acidity compared to the other beta zeolites studied here.

Keywords
Beta zeolite; Nanocrystallinity; HDPE; Liquid-phase degradation
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Nanocrystalline beta zeolite: An efficient solid acid catalyst for the liquid-phase degradation of high-density polyethylene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 83, Issues 1–2, 1 September 2008, Pages 160–167
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
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