Experimental Study on Effects of Addition of Rice Husk on Coal Gasification
In this experimental study, effects of addition of rice husk on coal gasification in a bubbling fluidized bed gasifier, operating at atmospheric pressure with air as gasifying agent, are reported. Rice husks comprising of 6.5% and 13% by mass are added to coal. Results show that, when rice husk is added the methane yield increases from volumetric percentage of 0.56% (with no rice husk) to 2.77% (with 13% rice husk). CO and H2 remain almost unchanged and CO2 decreases with addition of rice husk. The calorific value of the synthetic gas is around 2.73 MJ/Nm3. All performance indices, such as cold gas efficiency and carbon conversion, increase with addition of rice husk.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1316117Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 810
 K. Vijay Kumar, M. Bharath, Vasudevan Raghavan, B. V. S. S. S. Prasad, S. R. Chakravarthy, T. Sundararajan, “Gasification of high-ash Indian coal in bubbling fluidized bed using air and steam - An experimental study,” Applied Thermal Engineering 116 (2017) 372–381.
 Lucio Zaccariello, Maria Laura Mastellone, Fluidized-Bed Gasification of Plastic Waste, Wood, and Their Blends with Coal, Energies. Italy (2015) 8052-8068.
 J. F. Vélez, F. Chejne, C. F. Valdés, E. J. Emery and C. A. Londoño, “Co-gasification of Colombian coal and biomass in fluidized bed: an experimental study,” Fuel 88 (3) (2009) 424–430.
 K. Sjöström, G. Chen, Q. Yu, C. Brage and C. Rosén, “Promoted reactivity of char in co-gasification of biomass and coal: synergies in the thermochemical process,” Fuel 78 (10) (1999) 1189–1194.
 M. H. Lapuerta, J. J. Hern´andez, A. Pazo, and J. L´opez, “Gasification and co-gasification of biomass wastes: effect of the biomass origin and the gasification reactor operating conditions,” Fuel Processing Technology 89 (9) (2008) 828–837.
 Y. G. Pan, E. Velo, X. Roca, J. J. Manya, and L. Puigjaner, “Fluidized-bed co-gasification of residual biomass/poor coal blends for fuel gas production,” Fuel 79 (11) (2000) 1317– 1326.
 J. J. Hernandez, G. Aranda-Almansa, and C. Serrano, “Cogasification of biomass wastes and coal-coke blends in an entrained flow gasification reactor: an experimental study,” Energy and Fuels 24 (4) (2010) 2479–2488.
 D. Kunii, O. Levenspiel, Fluidization Engineering, Butterworth-Heinemann, 1991.
 P. Basu, Combustion and Gasification in Fluidized Beds, Taylor and Francis Group, 2006.
 A. D. Engelbrecht, B. C. North, B. O. Oboirien, R. C. Everson, H. W. P. J. Neomagus, Fluidized bed gasification of high ash South African coals: an experimental and modelling study, Proc. Ind. Fluid. South Africa (2011) 145-160.
 Masnadi Mohammad S, Grace, John, T. Bi. Xiaotao, Lim Jim and Ellis Naoko, “From fossil fuels towards renewables,’’ Applied Energy (2015) 196-209.