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Titre du document / Document title

Theoretical Evaluation of Feedstock Gasification Using H2/C Ratio and ROC as Main Input Variables

Auteur(s) / Author(s)

STEMMLER Michael (1) ; MÜLLER Michael (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Institute of Energy Research, IEF-2: Microstructure and Properties of Materials, Jülich Forschungszentrum, Leo-Brandt-Strasse 1, 52425 Jülich, ALLEMAGNE

Résumé / Abstract

Chemical equilibrium models for simulation of thermochemical processes such as feedstock gasification developed so far either focus on the determination of several producer gas compositions or include a parametric study of feedstock depending parameters such as relative fuel/air ratio (Frg) and moisture content of biomass (h). This article presents a thermochemical process model based on the H2/C ratio and relative oxygen content (ROC). Therefore, all oxygen-, hydrogen-, and carbon-containing components inside a gasifier are considered, and the model enables the prediction of feedstock behavior as well as an optimization of the feedstock gasification. Furthermore, producer gas compositions are determinable in a unique way as well as the achievable producer gas compositions deriving from several feedstocks combined with several gasifying agents (O2 and H2O). The calculated results show that the area of achievable producer gas compositions (AAPGC) derived from hard coal clearly exceeds the AAPGC derived from biomass. Whereas the AAPGC derived from lignite only exceeds the AAPGC derived from biomass for low H2/C ratios. The LHV of the producer gases decreases with increasing the H2/C ratio and ROC values. However, the resulting gas flow for the steam gasification is clearly higher compared to that of the oxygen gasification.

Revue / Journal Title

Industrial & engineering chemistry research    ISSN  0888-5885   CODEN IECRED 

Source / Source

2010, vol. 49, no19, pp. 9230-9237 [8 page(s) (article)] (40 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Chemical Society, Washington, DC, ETATS-UNIS  (1987) (Revue)

Mots-clés anglais / English Keywords

Gasification

;

Mots-clés français / French Keywords

Gazéification

;

Mots-clés espagnols / Spanish Keywords

Gasificación

;

Localisation / Location

INIST-CNRS, Cote INIST : 120 F, 35400019243816.0420

Nº notice refdoc (ud4) : 23289657



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