CO2 Gasification of Sugar Cane Bagasse: Quantitative Understanding of Kinetics and Catalytic Roles of Inherent Metallic Species

Zayda Faizah Zahara, Shinji Kudo, Daniyanto, U. P.M. Ashik, Koyo Norinaga, Arief Budiman, Hayashi Jun-Ichiro

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A total of 18 chars from the pyrolysis of six trios of sugar cane bagasses (SCBs; original, water-washed, and acid-washed) were gasified with CO2 at 900 °C, aiming at a quantitative description of the rate of gasification catalyzed by inherent metallic species and a correlation of the catalytic activity and its change during the gasification with the metallic species composition. The measured kinetics was described quantitatively over a range of char conversion, 0-0.999, by a model that assumed progress in parallel of the catalytic gasification and non-catalytic gasification, together with the presence of a catalytic precursor and three to four types of catalysts having different activities and deactivation characteristics. A series of regression analyses was scrutinized and reached expression of initial catalytic activity as a linear function of Na, K, Ca, Fe, and Si concentrations in the char with a correlation factor (r2) of >0.98. The catalyst precursor contributed fully by water-soluble Na, K, and Ca. Si was responsible for the catalyst deactivation during the pyrolysis but not during the gasification. The chars produced from original SCBs followed a linear relationship between the initial catalytic deactivation rate and initial activity (r2 > 0.99), while such a linear relationship was not valid for those formed from the water-washed SCBs. This was explained mainly by more rapid deactivation of the Fe catalyst in the chars from water-washed SCBs than that in the chars formed from the original SCBs. Na and K in char from the original SCBs, originating from the water-soluble SCBs, chemically interacted with the Fe catalyst, slowing its deactivation.

Original languageEnglish
Pages (from-to)4255-4268
Number of pages14
JournalEnergy and Fuels
Volume32
Issue number4
DOIs
Publication statusPublished - Apr 19 2018

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Sugar cane
Bagasse
Gasification
Kinetics
Water
Catalysts
Catalyst activity
Pyrolysis
Catalyst deactivation
bagasse
Acids
Chemical analysis

All Science Journal Classification (ASJC) codes

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

Cite this

CO2 Gasification of Sugar Cane Bagasse : Quantitative Understanding of Kinetics and Catalytic Roles of Inherent Metallic Species. / Zahara, Zayda Faizah; Kudo, Shinji; Daniyanto; Ashik, U. P.M.; Norinaga, Koyo; Budiman, Arief; Jun-Ichiro, Hayashi.

In: Energy and Fuels, Vol. 32, No. 4, 19.04.2018, p. 4255-4268.

Research output: Contribution to journalArticle

Zahara, Zayda Faizah ; Kudo, Shinji ; Daniyanto ; Ashik, U. P.M. ; Norinaga, Koyo ; Budiman, Arief ; Jun-Ichiro, Hayashi. / CO2 Gasification of Sugar Cane Bagasse : Quantitative Understanding of Kinetics and Catalytic Roles of Inherent Metallic Species. In: Energy and Fuels. 2018 ; Vol. 32, No. 4. pp. 4255-4268.
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