Production of chemicals by cracking pyrolytic tar from Loy Yang coal over iron oxide catalysts in a steam atmosphere

Nozomu Sonoyama, Kazunari Nobuta, Tokuji Kimura, Sou Hosokai, Hayashi Jun-Ichiro, Teruoki Tago, Takao Masuda

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Iron oxide catalysts containing metal promoters were tested to evaluate whether they could be applied to the coal tar obtained from the pyrolysis of Loy Yang coal. Catalytic cracking of the coal tar in a steam atmosphere was conducted in a fixed-bed reactor at 773 K and ambient atmospheric pressure. For iron oxide catalysts containing cerium, zirconium, and aluminium, the total yield of monocyclic aromatic hydrocarbons, phenols, and ketones exceeded 40 mol-C% on a tar basis, while about 97 wt.% of the initial heavy tar was decomposed. The combination of cerium, zirconium, and aluminium improved the activity of the iron oxide catalyst. Moreover, the addition of steam to the tar vapour increased the yield of ketones and made the catalyst more durable.

Original languageEnglish
Pages (from-to)771-775
Number of pages5
JournalFuel Processing Technology
Volume92
Issue number4
DOIs
Publication statusPublished - Apr 1 2011

Fingerprint

Tars
Coal
Tar
Steam
Iron oxides
Coal Tar
Cerium
Coal tar
Catalysts
Ketones
Aluminum
Zirconium
Aromatic Hydrocarbons
Catalytic cracking
Phenols
Aromatic hydrocarbons
Atmospheric pressure
Pyrolysis
Metals
Vapors

All Science Journal Classification (ASJC) codes

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

Cite this

Production of chemicals by cracking pyrolytic tar from Loy Yang coal over iron oxide catalysts in a steam atmosphere. / Sonoyama, Nozomu; Nobuta, Kazunari; Kimura, Tokuji; Hosokai, Sou; Jun-Ichiro, Hayashi; Tago, Teruoki; Masuda, Takao.

In: Fuel Processing Technology, Vol. 92, No. 4, 01.04.2011, p. 771-775.

Research output: Contribution to journalArticle

Sonoyama, Nozomu ; Nobuta, Kazunari ; Kimura, Tokuji ; Hosokai, Sou ; Jun-Ichiro, Hayashi ; Tago, Teruoki ; Masuda, Takao. / Production of chemicals by cracking pyrolytic tar from Loy Yang coal over iron oxide catalysts in a steam atmosphere. In: Fuel Processing Technology. 2011 ; Vol. 92, No. 4. pp. 771-775.
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