Upgraded bio-oil production via catalytic fast co-pyrolysis of waste cooking oil and tea residual

Jia Wang, Zhaoping Zhong, Bo Zhang, Kuan Ding, Zeyu Xue, Aidong Deng, Roger Ruan

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Catalytic fast co-pyrolysis (co-CFP) offers a concise and effective process to achieve an upgraded bio-oil production. In this paper, co-CFP experiments of waste cooking oil (WCO) and tea residual (TR) with HZSM-5 zeolites were carried out. The influences of pyrolysis reaction temperature and H/C ratio on pyrolytic products distribution and selectivities of aromatics were performed. Furthermore, the prevailing synergetic effect of target products during co-CFP process was investigated. Experimental results indicated that H/C ratio played a pivotal role in carbon yields of aromatics and olefins, and with H/C ratio increasing, the synergetic coefficient tended to increase, thus led to a dramatic growth of aromatics and olefins yields. Besides, the pyrolysis temperature made a significant contribution to carbon yields, and the yields of aromatics and olefins increased at first and then decreased at the researched temperature region. Note that 600 °C was an optimum temperature as the maximum yields of aromatics and olefins could be achieved. Concerning the transportation fuel dependence and security on fossil fuels, co-CFP of WCO and TR provides a novel way to improve the quality and quantity of pyrolysis bio-oil, and thus contributes bioenergy accepted as a cost-competitive and promising alternative energy.

Original languageEnglish (US)
Pages (from-to)357-362
Number of pages6
JournalWaste Management
Volume60
DOIs
StatePublished - Feb 1 2017

Keywords

  • Bioenergy
  • Catalytic fast co-pyrolysis
  • Synergistic effect
  • Tea residual
  • Waste cooking oil

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