A Modified Gibbs Free Energy Minimisation Model for Fluid Bed Coal Gasification

• Autorzy: Ściążko M. , Stępień L.

Identyfikatory

DOI

10.1515/cpe-2015-0006

• Języki publikacji: EN

Abstrakty

EN

A modified approach to equilibrium modelling of coal gasification is presented, based on global thermodynamic analysis of both homogeneous and heterogeneous reactions occurring during a gasification process conducted in a circulating fluid bed reactor. The model is based on large-scale experiments (ca. 200 kg/h) with air used as a gasification agent and introduces empirical modifications governing the quasi-equilibrium state of two reactions: water-gas shift and Boudouard reaction. The model predicts the formation of the eight key gaseous species: CO, CO2, H2O, H2, H2S, N2, COS and CH4, volatile hydrocarbons represented by propane and benzene, tar represented by naphthalene, and char containing the five elements C, H, O, N, S and inorganic matter.

Słowa kluczowe

EN

equilibrium modelling; coal gasification; gasification modelling; fluid bed gasification

PL

modelowanie równowagi; zgazowanie węgla; modelowanie gazyfikacji; gazyfikacja

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2015
• Tom: Vol. 36, nr 1
• Strony: 73--87
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Ściążko M.

• AGH University of Science and Technology, 30 Mickiewicza Av., 30-0589 Cracow, Poland

autor

Stępień L.

• AGH University of Science and Technology, 30 Mickiewicza Av., 30-0589 Cracow, Poland

Bibliografia

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