alexa Experimental And Theoretical Analysis Of CO2 Adsorption Process For Optimization Of Carbon Based (Biochar) Adsorbent
ISSN: 2090-4541

Journal of Fundamentals of Renewable Energy and Applications
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5th World Bioenergy Congress and Expo
June 29-30, 2017 Madrid, Spain

Hanieh Bamdad, Kelly Hawboldt and Stephanie MacQuarrie
Memorial University, Canada
Cape Breton University, Canada
ScientificTracks Abstracts: J Fundam Renewable Energy Appl
DOI: 10.4172/2090-4541-C1-029
Biochar, a product of pyrolysis of biomass, represents an attractive alternative and, depending on the biomass source, sustainable adsorbent material for treating gaseous effluents. In this study, biochar sourced from three different woody biomasses (i.e. softwood shavings, softwood bark, and hardwood sawdust) were produced via fast pyrolysis at different pyrolysis temperature (400-500ºC) in a 2-4 kg/h auger reactor. The produced biochars were characterized for elemental composition, surface area, morphology, proximate analysis, and thermal properties. The CO2 adsorption capacity of produced biochars was determined in a fixed-bed adsorption unit. Response surface methodology (RSM) coupled with a central composite design (CCD) was used to investigate the impact of significant process factors on the adsorption capacity of biochar. Three variables were investigated including temperature (20-80°C), the inlet flow rate (60-200 mL/min.g), and volume fraction of CO2 (20-100% (v/v)). The optimum CO2 capture capacity of biochar was obtained at an adsorption temperature of 20ºC, CO2 volume fraction of 100%, and inlet flow rate of 60 ml/min. The ANOVA analysis illustrated that the quadratic model fitted the experimental data well. In addition, the effect of different biochars obtained from fast pyrolysis of softwood shavings and hardwood sawdust pyrolyzed at different pyrolysis temperatures were investigated at optimum conditions. Softwood shavings pyrolyzed at 500ºC showed the highest CO2 uptake as it has the highest surface area (95.58 m2/g).

Hanieh Bamdad is a PhD candidate with particular interests in Process Engineering, Waste Management, and Simulation. She holds a Master’s and BA degree in Chemical Engineering from her home country, Iran. She is an active volunteer in academic societies.

Email: [email protected]

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