Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl


Preferences help
enabled [disable] Abstract
Number of results
2015 | 36 | 1 | 73-87

Article title

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


Title variants

Languages of publication



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.









Physical description


1 - 3 - 2015
10 - 4 - 2015
19 - 2 - 2015
23 - 12 - 2014
25 - 2 - 2015


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


  • Chen C.J., Hung C.I., Chen W.H., 2012. Numerical investigation on performance of coal gasification under various injection patterns in an entrained flow gasifier. Appl. Energy, 100, 218-228. DOI: 10.1016/j.apenergy.2012.05.013.[Crossref]
  • Esmaili E., Mahinpey N., Lim Jim C., 2013. Modified equilibrium modelling of coal gasification with in situ CO2 capture using sorbent CaO: Assessment of approach temperature. Chem. Eng. Res. Des., 1361-1369. DOI: 10.1016/j.cherd.2013.02.015.[Crossref][WoS]
  • Florin N.H., Harris A.T., 2007. Hydrogen production from biomass coupled with carbon dioxide capture: The implications of thermodynamic equilibrium. Int. J. of Hydrog. Energy, 32, 4119-4134. DOI: 10.1016/j.ijhydene.2007.06.016.[WoS][Crossref]
  • Higman Ch., van der Burgt M., 2003. Gasification, Elsevier.
  • Irfan M.F., 2011. Coal gasification in CO2 atmosphere and its kinetics since 1948: A brief review. Energy, 36, 12-40. DOI: 10.1016/j.energy.2010.10.034.[WoS][Crossref]
  • Jarungthammachote S., Dutta A., 2008. Equilibrium modelling of gasification: Gibbs free energy minimisation approach and its application to spouted bed and spout-fluid bed gasifiers. Energy Convers. Manag., 49, 1345-1356. DOI: 10.1016/j.enconman.2008.01.006.[WoS][Crossref]
  • Kaiho M., Yamada O., 2012. Stoichiometric approach to the analysis of coal gasification process, In: Innocenti A. (Ed.), Stoichiometry and materials science - When numbers matter. InTech. DOI: 10.5772/37809.[Crossref]
  • Kangas P., Hannula I., Koukkari P., Hupa M., 2014. Modelling super-equilibrium in biomass gasification with the constrained Gibbs energy method. Fuel, 129, 86-94, DOI: 10.1016/j.fuel.2014.03.034.[WoS][Crossref]
  • Li X., Grace J.R., Watkinson A.P., Lim C.J., Ergüdenler A., 2001. Equilibrium modelling of gasification: A free energy minimisation approach and its application to a circulating fluidized bed coal gasifier. Fuel, 80, 195-207. DOI: 10.1016/S0016-2361(00)00074-0.[Crossref]
  • Mann M.D., Knutson R.Z., Erjavec J., Jacobsen J.P., 2004. Modelling reaction kinetics of steam gasification for a transport gasifier. Fuel, 83, 1643-1650. DOI: 10.1016/S0016-2361(00)00074-0.[Crossref]
  • Mathcad user’s guide with reference manual, 2001. MathSoft Engineering & Education, Inc. USA.
  • Miao Qi, Zhu Jesse, Barghi S., Wu Chuangzhi, Yin Xiuli, Zhou Zhaoqiu, 2014. Modelling biomass gasification in circulating fluid beds, Renewable Energy, 50, 655-661. DOI: 10.1016/j.renene.2012.08.020.[WoS][Crossref]
  • Neron A., Lantagne G., Marcos B., 2012. Computation of complex and constrained equilibria by minimisation of the Gibbs free energy. Chem. Eng. Sci., 82, 260-271. DOI: 10.1016/j.ces.2012.07.041.[WoS][Crossref]
  • Pengmei Lv., Yuan Zhenhong, Ma Longlong, Wu Chuangzhi, Chen Yong, Zhu Jingxu, 2007. Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier. Renewable Energy, 32, 2173-2185. DOI: 10.1016/j.renene.2006.11.010.[WoS][Crossref]
  • M.S. Rao Singh S.P., Sodha S.P., Dubey A.K., Shyam M., 2004. Stoichiometric, mass, energy and exergy balance analysis of countercurrent fixed-bed gasification of post-consumer residues. Biomass Bioenergy, 27, 155-171. DOI: 10.1016/j.biombioe.2003.11.003.[Crossref]
  • Reed T., 2006. The Boudouard equation: Chart and spreadsheet. BioEnergy lists: Gasifiers & gasification. Retrived 25 March 2015, from: http://gasifiers.bioenergylists.org/reedboudouard.
  • Ściążko M., Stępień L., 2014. Termodynamiczno-empiryczny model powietrznego zgazowania węgla. Przem. Chem., 93, 368. DOI: 10.12916/przemchem.2014.368.
  • Silaen A., Wang T., 2010. Investigation of the coal gasification process under various operating conditions inside a two stage entrained flow gasifier. Proceedings of the 27th Pittsburgh Coal Conference. Istanbul, Turkey, 11-14 October 2010.
  • Shabbar S., Janajreh I., 2013. Thermodynamic equilibrium analysis of coal gasification using Gibbs energy minimisation method. Energy Convers. Manage., 65, 755-763. DOI: 10.1016/j.enconman.2012.02.032.[WoS][Crossref]
  • Szarawara J., 2007. Termodynamika chemiczna stosowana, WNT.
  • Ściążko M., 2013. Rank-dependent formation enthalpy of coal. Fuel, 114, 2-9. DOI: 10.1016/j.fuel.2012.06.099.[WoS][Crossref]
  • Thanh D.B. Nguyen Lim, Young-Il, Song Byung-Ho, Kim Si-Moon, Joo Yong-Jim, Ahn Dal-Hong, 2010. Twostage equilibrium model applicable to the wide range of operating conditions in entrained-flow coal gasifiers. Fuel, 89, 3901-3910. DOI: 10.1016/j.fuel.2010.06.044.[Crossref]
  • Tremel A., Spliethoff H., 2013. Gasification kinetics during entrained flow gasification - Part III: Modelling and optimisation of entrained flow gasifiers. Fuel, 107, 170-182. DOI: 10.1016/j.fuel.2013.01.062.[Crossref]
  • Yoshida H., Kiyono F., Tajima H., Yamasaki A., Ogasawara K., Masuyama T., 2008. Two-stage equilibrium model for a coal gasifier to predict the accurate carbon conversion in hydrogen production. Fuel, 87, 2186-2193. DOI: 10.1016/j.fuel.2008.01.009. [WoS][Crossref]

Document Type

Publication order reference


YADDA identifier

JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.