Kinetics of fast pyrolysis of rice husks using an externally plasma-heated laminar entrained flow reactor

Shuangning Xiu, Baoming Li, Weiming Yi, Yuanhui Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

A plasma-heated laminar entrained flow reactor (LEFR) was developed for studying the kinetics of fast pyrolysis of biomass particles at rapid heating rates. In order to achieve a controllable, stable, and uniform high-temperature gas flow in the reactor, a plasma jet was used as the primary heating source for the LEFR, and an electric heater was used as an auxiliary heating source. Reynolds number was used as the principle of similitude to determine the flow distribution in the reactor through a series of cold flow tests. Comprehensive temperature measurements were taken, and corresponding temperature profiles were obtained. Experiments using rice husk were conducted in the LEFR. The results showed that biomass particles below 100 μm could be pyrolyzed sufficiently, and thus the pyrolysis kinetics of biomass could be studied in this reactor. Based on the experimental data, a kinetic model for rice husk was proposed, and the kinetic parameters (i.e., activation energy and frequency factor) were determined.

Original languageEnglish (US)
Pages (from-to)1151-1157
Number of pages7
JournalTransactions of the ASABE
Volume49
Issue number4
StatePublished - Jul 2006

Keywords

  • Biomass
  • Kinetics
  • Laminar entrained flow reactor
  • Plasma
  • Pyrolysis

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Biomedical Engineering
  • Food Science
  • Forestry
  • Soil Science

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