Co-combustion of biomass and bituminous coal in a fluidized two-bed reactor

ABSTRACT The combustion of hazelnut shells and bituminous coal was studied in a novel reactor with two disks, supporting two fluidized beds located one above the other. The reactor allows for the study of the impact of the fuels’ vertical arrangement in the combustion zone on SO2 emission. The biomass and coal were combusted in separate beds or as a mixture. The gas species concentrations were measured. A major drop in the SO2 coal emission was observed when the coal was combusted underneath the biomass bed, and a minor one, when above.

[1]  W. Moroń,et al.  NOx and SO2 emissions of coals, biomass and their blends under different oxy-fuel atmospheres. , 2015 .

[2]  N. A. Akhtar,et al.  Emissions of NOx, SO2, and CO from Co-Combustion of Wheat Straw and Coal Under Fast Fluidized Bed Condition , 2015 .

[3]  P. Sarkar,et al.  Coal–biomass co-combustion: An overview , 2014 .

[4]  N. Mantananont,et al.  The Effect of the Combustion of Rice Husk with Thai Lignite in a Fixed Bed Reactor on Combustion Characteristics and Pollutant Emissions , 2014 .

[5]  Aysel T. Atimtay,et al.  Emission characteristics of co-combustion of a low calorie and high sulfur-lignite coal and woodchips in a circulating fluidized bed combustor: Part 1. Effect of excess air ratio , 2014 .

[6]  Gongliang Wang,et al.  Investigation on ash deposit formation during the co-firing of coal with agricultural residues in a large-scale laboratory furnace , 2014 .

[7]  X. Kai,et al.  The Behavior of Alkali Metals During the Co-combustion of Straw and Coal , 2014 .

[8]  Rundong Li,et al.  The effect of coal sulfur on the behavior of alkali metals during co-firing biomass and coal , 2011 .

[9]  Aysel T. Atimtay,et al.  Combustion of agro-waste with coal in a fluidized bed , 2010 .

[10]  Aysel T. Atimtay,et al.  Investigation of co-combustion of coal and olive cake in a bubbling fluidized bed with secondary air injection , 2009 .

[11]  Anes Kazagic,et al.  Synergy effects of co-firing wooden biomass with Bosnian coal , 2009 .

[12]  C. Chao,et al.  Co-combustion performance of coal with rice husks and bamboo , 2007 .

[13]  Murat Varol,et al.  Combustion of olive cake and coal in a bubbling fluidized bed with secondary air injection , 2007 .

[14]  A. Tatarek,et al.  THE EFFECT OF BIOMASS ON POLLUTANT EMISSION AND BURNOUT IN CO-COMBUSTION WITH COAL , 2006 .

[15]  A. Demirbas,et al.  Combustion characteristics of different biomass fuels , 2004 .

[16]  Margaret S. Wooldridge,et al.  Co-firing of coal and biomass fuel blends , 2001 .

[17]  A. Nordin.  Optimization of sulfur retention in ash when cocombusting high sulfur fuels and biomass fuels in a small pilot scale fluidized bed , 1995 .