Interparticle desorption and re-adsorption of alkali and alkaline earth metallic species within a bed of pyrolyzing char from pulverized woody biomass

Nozomu Sonoyama, Tsutomu Okuno, Ondřej Mašek, Sou Hosokai, Chun Zhu Li, Jun Ichiro Hayashi

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Pulverized pine sawdust was pyrolyzed at 500 °C for a period long enough to complete tar evolution, and the resultant char was subjected to further heating at 700 °C in a fixed-bed reactor. Net release of alkali and alkaline earth metallic (AAEM) species from the char as a fixed bed was negligible unless the He flow was forced to pass through the bed. Even when the forced He flow was applied, the net release of each AAEM species was significantly influenced by the bed height even within a range up to 2.3 mm. These results showed that volatile AAEM species underwent repeated desorption from the char surface and adsorption onto it within the bed.

Original languageEnglish
Pages (from-to)1294-1297
Number of pages4
JournalEnergy and Fuels
Volume20
Issue number3
DOIs
Publication statusPublished - May 1 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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