Optimized combustion of biomass volatiles by varying O 2 and CO 2 levels: A numerical simulation using a highly detailed soot formation reaction mechanism

Agung Tri Wijayanta, Md Saiful Alam, Koichi Nakaso, Jun Fukai, Masakata Shimizu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

To increase syngas production and minimize soot, polycyclic aromatic hydrocarbon (PAH), and CO 2 emissions resulting from biomass combustion, the evolution of biomass volatiles during O 2/CO 2 gasification was simulated. A highly detailed soot formation reaction mechanism flowing through the reactor, involving 276 species, 2158 conventional gas phase reactions and 1635 surface phase reactions, was modeled as a plug flow reactor (PFR). The reaction temperature and pressure were varied in the range 1073-1873K and 0.1-2MPa. The effect of temperature on product concentration was more emphasized than that of pressure. The effect of O 2/CO 2 input on product concentration was investigated. O 2 concentration was important in reducing PAHs at low temperature. Below 1473K, an increase in the O 2 concentration decreased PAH and soot production. However, if the target of CO 2 concentration was higher than 0.22 in mass fraction terms, temperatures above 1473K reduced PAHs and increased CO.

Original languageEnglish
Pages (from-to)645-651
Number of pages7
JournalBioresource Technology
Volume110
DOIs
Publication statusPublished - Apr 2012
Externally publishedYes

Fingerprint

Soot
soot
Carbon Monoxide
Polycyclic aromatic hydrocarbons
PAH
Biomass
combustion
Computer simulation
biomass
Polycyclic Aromatic Hydrocarbons
simulation
Temperature
gas phase reaction
temperature
Gasification
Gases
product
effect
reactor

Keywords

  • Biomass volatiles
  • O /CO gasification
  • Polycyclic aromatic hydrocarbon
  • Reaction mechanism
  • Soot formation

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Optimized combustion of biomass volatiles by varying O 2 and CO 2 levels : A numerical simulation using a highly detailed soot formation reaction mechanism. / Wijayanta, Agung Tri; Saiful Alam, Md; Nakaso, Koichi; Fukai, Jun; Shimizu, Masakata.

In: Bioresource Technology, Vol. 110, 04.2012, p. 645-651.

Research output: Contribution to journalArticle

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