Biofuel production from distillers dried grains with solubles (DDGS) co-fed with waste agricultural plastic mulching films via microwave-assisted catalytic fast pyrolysis using microwave absorbent and hierarchical ZSM-5/MCM-41 catalyst

Bo Zhang, Zhaoping Zhong, Tong Li, Zeyu Xue, Xiaojia Wang, Roger Ruan

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Microwave-assisted catalytic fast co-pyrolysis (co-MACFP) of distillers dried grains with solubles (DDGS) and waste agricultural plastic mulching films (WAPMFs) with SiC as microwave absorbent and hierarchical ZSM-5/MCM-41 as catalyst are implemented in a microwave-induced reactor. MCM-41 mesoporous structure is formed in hierarchical ZSM-5/MCM-41 catalyst as the outer shell layer coupled with ZSM-5 as the inside core. Experimental results show that the use of both microwave absorbent and hierarchical ZSM-5/MCM-41 catalyst significantly increase the carbon yield of hydrocarbons in bio-oil. The influence of co-MACFP temperature and the mass ratio of WAPMFs to DDGS (W/D ratio) on product distribution and hydrocarbon composition is investigated. The total liquid yield and total hydrocarbon carbon yield in bio-oil first increase with the augment of temperature from 500 to 650 °C, and then decrease when temperature continues to rise. Besides, a higher W/D ratio can favor bio-oil production and retard coke formation, and a significant synergy between DDGS and WAPMFs is observed during co-MACFP. Additionally, from the perspective of hydrocarbon carbon yield in bio-oil, W/D ratio of 1.0 is the best option.

Original languageEnglish (US)
Pages (from-to)249-255
Number of pages7
JournalJournal of Analytical and Applied Pyrolysis
Volume130
DOIs
StatePublished - Mar 2018

Keywords

  • Agricultural plastic mulching films
  • Catalytic fast co-pyrolysis
  • Composite zeolite
  • Distillers dried grains with solubles
  • Microwave absorbent
  • Microwave-assisted heating

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