Berruti, Franco

Briens, Cedric

Colomba, Alberto

Colomba, Anastasia

Dalai, Ajay

Fiore, Silvia

Genon, Giuseppe

Nedunury, Rambabu

English

Engineering Conferences International

Engineering Conferences InternationalECI Digital ArchivesBiorefinery I: Chemicals and Materials FromThermo-Chemical Biomass Conversion and RelatedProcessesProceedings2015Production of Activated Carbons from PyrolyticBiocharAnastasia ColombaICFAR - Western UniversityFranco BerrutiICFAR - Western UniversityCedric BriensICFAR - Western UniversityAjay DalaiUniversity of SaskatchewanRambabu NedunuryUniversity of SaskatchewanSee next page for additional authorsFollow this and additional works at: http://dc.engconfintl.org/biorefinery_IPart of the Chemical Engineering CommonsThis Conference Proceeding is brought to you for free and open access by the Proceedings at ECI Digital Archives. It has been accepted for inclusion inBiorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes by an authorized administrator of ECIDigital Archives. For more information, please contact franco@bepress.com.Recommended CitationAnastasia Colomba, Franco Berruti, Cedric Briens, Ajay Dalai, Rambabu Nedunury, Alberto Colomba, Silvia Fiore, and GiuseppeGenon, "Production of Activated Carbons from Pyrolytic Biochar" in "Biorefinery I: Chemicals and Materials From Thermo-ChemicalBiomass Conversion and Related Processes", Nicolas Abatzoglou, Université de Sherbrooke, Canada Sascha Kersten, University ofTwente, The Netherlands Dietrich Meier, Thünen Institute of Wood Research, Germany Eds, ECI Symposium Series, (2015).http://dc.engconfintl.org/biorefinery_I/4AuthorsAnastasia Colomba, Franco Berruti, Cedric Briens, Ajay Dalai, Rambabu Nedunury, Alberto Colomba, SilviaFiore, and Giuseppe GenonThis conference proceeding is available at ECI Digital Archives: http://dc.engconfintl.org/biorefinery_I/4Production of Activated Carbons from Pyrolytic BiocharAnastasia Colomba1, Franco Berruti1, Cedric Briens1, Ajay Dalai2, Rambabu Nedunury2, Alberto Colomba3, Silvia Fiore3, Giuseppe Genon311ICFAR, Western University, London, Ontario CANADA2University of Saskatchewan, Saskatoon, Saskatchewan, CANADA3Politecnico di Torino, Torino, ITALY2GASBIOMASS PYROLYSIS CONDENSABLE VAPORS(BIO-OIL)BIOCHAR10-20%50-70%20-30%3… in the Old Days….. Bio-Char production from a variety of biomassresidues and wastes using differenttechnologies and under different operatingconditions followed by activation Characterization Studies on the potential usefor adsorption of selectedpollutants45Energy crops Crop residues Seeds Milling residuesWillow Wheat  Straw Sorghum Olive ResidueMiscanthusSwitchgrassCorn StoverCanola StrawSunflower Husks BagasseBirch BarkLigninMaple wood Micro-reactor developed for catalyst screening Fluidization achieved through jiggling • No fluidization gas• Ideal to study gas-solid reactions Heat provided through induction• Excellent temperature control• Fast response to changes during exothermic reactions• Heating rate can be varied over a wide range6Induction heatingpower supply*…also designated as the “James Bond Reactor”020040060080010000 10 20 30 40 50 60 70 80Reactor temperature, ˚CTime, minutesPyrolysis Cooling0501001502002500 20 40 60 80Gas flowrate, ml/minTime, minutesActivation (CO2) Cooling(N2)Pyrolysis (N2)ActivationN2N2 CO28Yield, %10 15 20 25Surface area, m2 /g020040060080010001200140020 ml/min 800 °C100 ml/min 800 °C200 ml/min 800 °CYield, 10 15 20 25Surface area, m2 /g l/ i   °100 l/ in 800 °200 l/ in 800 °C100 ml/min 850 °C200 ml/min 850 °CSurface area, m2 /g100 ml/min 850 °C200 ml/min 850 °C100 ml/min 900 °C200 ml/min 900 °C400 ml/min 900 °C995 ˚C/min10MiscanthusYield, %5 10 15 20 25 30 35Surface area, m2 /g0200400600800100012001400WillowOlive residueLignin11Yield, %10 15 20 25 30 35 40Surface area, m2 /g0200400600800100012001400LigninR2=0.85Olive residueR2=0.92fastslow12Yield, %10 15 20 25Surface area, m2 /g0200400600800100012001400Different activation conditionsDifferent pyrolysis conditionsFor every feedstock, a unique relationship exists between total surface area and yield! 13Total surface area, m2/g400 500 600 700 800 900 1000 1100 1200Micropore surface area, m2 /g400500600700800900Fast pyrolysis158 oC/min95 oC/min47.5 oC/minfastslowThe distribution of microporesand mesoporesdepends on the pyrolysis conditions 14Olive residue(more micropores) Lignin(more mesopores)15Mesopore surface area, m2/g0 100 200 300 400Adsorption capacity, mg/g0246810Surface area, m2/g0 200 400 600 800 1000 1200 1400 1600Adsorption capacity, mg/g0246810 Lignin - fastLignin - slowLignin - slowLignin - fastActivated lignin bio-charBest commercialBest commercial16 Bio-Char is a valuable co-product of pyrolysisof residual biomasses and wastes In order to increase its value, it can besuccessfully be activated Activation can reduce significantly the mass andincrease significantly the porosity: for everyfeedstock a unique relationship exists betweenyield and surface area Activated Bio-char is an effective adsorbent17Acknowledgments

Production of Activated Carbons from Pyrolytic Biochar

https://dc.engconfintl.org/cgi/viewcontent.cgi?article=1002&amp;context=biorefinery_I

Production of Activated Carbons from Pyrolytic Biochar

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