NOx Behaviors Upon Conventional and Advanced Combustion Treatments of Woody Biomass


Based on the easy approachability and affordability, bio-energy has always been termed as basic source of energy since the evolution of humankind. Based on the fact, the present study deals with a direct combustion approach towards thermo-chemical characteristics of woody biomass under various combustion media and furnace temperatures through using conventional & advanced combustion technologies. During combustion experiments of woody biomass in the fixed bed tube type furnace, behavioral studies of nitrogen oxides (NOx) as being the hazardous effluent has been extensively carried out. For the experiments, a series of different combustion media has been considered with a constant flow rate for each group of binary gases. The combustion media consists of various binary gas mixtures such as ordinary air (21% O2 & 79% N2), enhanced air (30% O2 & 70% N2) and oxy air (O2 / CO2) with 21%, 30%, 50%, 70%, 90% of O2 collaborating with rest of CO2. Whereas temperature zones in fixed bed furnace were kept at 600 oC, 700 oC, 800 oC, 900 oC, 1000 oC, 1100 oC, 1200 oC for all pre-considered combustion media. Noticeable results have been attained after comparing the NOx investigated from advanced combustion treatments of woody biomass with those of conventional combustion. The NOx reduction efficacy of 72.56% under 21% Oxygen and 68.80 % under 30% oxy combustion over conventional combustion have been achieved, whereas 51.43% NOx reduction efficacy has been gained through enhancing temperature from 600 oC to 700 oC under 21% oxy combustion atmospheric medium.

Author Information
Imran Ali Shah, Hebei University of Technology, China
Xiang Gou, Hebei University of Technology, China
Jinxiang Wu, Hebei University of Technology, China

Paper Information
Conference: ACSEE2017
Stream: Energy: Renewable Energy and Environmental Solutions

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Posted by James Alexander Gordon