Catalytic pyrolysis of waste tire to produce valuable aromatic hydrocarbons: An analytical Py-GC/MS study

Kuan Ding, Zhaoping Zhong, Bo Zhang, Jia Wang, Addy Min, Roger Ruan

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Pyrolysis of waste tire with HY, HZSM-5 (HZ) and purified attapulgite (PA) catalysts to produce valuable aromatic hydrocarbons has been carried out in a Pyrolyzer- Gas Chromatograph/Mass Spectrum (Py-GC/MS) reactor. Likewise, D-limonene and polybutadiene rubber (BR), which played important roles in the pyrolysis process of waste tire, has also been pyrolyzed in the Py-GC/MS reactor with these catalysts. Based on the product distribution, the catalytic pyrolysis mechanisms of D-limonene were proposed, while those of BR were extended. With these mechanisms, the catalytic pyrolysis characteristics of waste tire could be explained reasonably. Results showed that HY promoted a dramatic increase of aromatics from pyrolysis of D-limonene and BR, leading to the considerable growth of aromatics in the degraded products of waste tire. The shape selectivity of HZ to mono-cyclic aromatics performed effectively in the pyrolysis of BR, yet it exhibited a weak performance in the pyrolysis of D-limonene. As a result, upon the catalytic pyrolysis of waste tire, HZ was inferior to HY in the aromatization ability. However, the selectivity of HZ to BTXE (benzene, toluene, xylene and ethylbenzene) was superior to that of HY. PA performed a weaker catalytic ability in promoting the production of aromatics during the pyrolysis of D-limonene, BR and waste tire.

Original languageEnglish (US)
Pages (from-to)55-63
Number of pages9
JournalJournal of Analytical and Applied Pyrolysis
Volume122
DOIs
StatePublished - Nov 1 2016

Keywords

  • Catalytic pyrolysis
  • D-Limonene
  • Polybutadiene rubber
  • Py-GC/MS
  • Waste tire

Fingerprint Dive into the research topics of 'Catalytic pyrolysis of waste tire to produce valuable aromatic hydrocarbons: An analytical Py-GC/MS study'. Together they form a unique fingerprint.

  • Cite this