CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Importance of Decomposition Reactions for Catalytic Conversion of Tar and Light Hydrocarbons: An Application with an Ilmenite Catalyst

Thi Dieu Huyen Nguyen (Institutionen för energi och miljö, Energiteknik) ; Nicolas Berguerand (Institutionen för energi och miljö, Energiteknik) ; Georg Schwebel (Institutionen för energi och miljö, Energiteknik) ; Henrik Thunman (Institutionen för energi och miljö, Energiteknik)
Industrial & Engineering Chemistry Research (0888-5885). Vol. 55 (2016), 46, p. 11900-11909.
[Artikel, refereegranskad vetenskaplig]

This work elucidates the contributions of different decomposition reactions, namely, steam reforming, hydro-cracking, dry reforming, and (thermal) cracking reactions, to the conversion of tar and light hydrocarbons during the catalytic cleaning of a biomass derived raw gas. A raw gas that contained a high content of steam and that was produced in the Chalmers indirect biomass gasifier was taken as the reference. The representative reactions associated with the upgrading of the given raw gas were identified to investigate the individual effects and thereafter reassembled to investigate the synergistic effects. Ilmenite was used as the catalyst, and the temperature range of 750 degrees-900 degrees C was the focus. For this process, it was discovered that the complete steam reforming, steam dealkylation, and hydro-cracking reactions are important, whereas the dry reforming reaction is not relevant. In addition, the water gas shift reaction occurs significantly and can promote the hydron-cracking reaction. These results provide insights into the most important reactions for inclusion in kinetic models of catalytic gas cleaning.

Nyckelord: chemical-looping combustion, biomass gasification processes, fluidized-bed gasification, hot gas, oxygen-carrier, producer gas, raw, gas, elimination, ammonia, cleanup, Engineering



Den här publikationen ingår i följande styrkeområden:

Läs mer om Chalmers styrkeområden  

Denna post skapades 2017-01-13.
CPL Pubid: 246878

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för energi och miljö, Energiteknik (2005-2017)

Ämnesområden

Energi
Hållbar utveckling
Annan naturresursteknik

Chalmers infrastruktur