Production of aromatic hydrocarbons by catalytic pyrolysis of microalgae with zeolites: Catalyst screening in a pyroprobe

Zhenyi Du, Xiaochen Ma, Yun Li, Paul Chen, Yuhuan Liu, Xiangyang Lin, Hanwu Lei, Roger Ruan

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

Catalytic pyrolysis of microalgae and egg whites was investigated to evaluate the performance of different zeolites for the production of aromatic hydrocarbons. Three zeolites with different structures (H-Y, H-Beta and H-ZSM5) were used to study the effect of catalyst type on the aromatic yield. All three catalysts significantly increased the aromatic yields from pyrolysis of microalgae and egg whites compared with non-catalytic runs, and H-ZSM5 was most effective with a yield of 18.13%. Three H-ZSM5 with silica-to-alumina ratios of 30, 80 and 280 were used to study the effect of Si/Al ratio on the aromatic yield. The maximum yield was achieved at the Si/Al ratio of 80, which provides moderate acidity to achieve high aromatic production and reduce coke formation simultaneously. Aromatic production increased with the incorporation of copper or gallium to HZSM-5. However, other studied metals either had no significant influence or led to a lower aromatic yield.

Original languageEnglish (US)
Pages (from-to)397-401
Number of pages5
JournalBioresource Technology
Volume139
DOIs
StatePublished - Jul 2013

Keywords

  • Bio-oil
  • Microalgae
  • Model compounds
  • Pyrolysis

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