Upload
others
View
0
Download
0
Embed Size (px)
Citation preview
NRELisanationallaboratoryoftheU.S.DepartmentofEnergy,OfficeofEnergyEfficiencyandRenewableEnergy,operatedby theAllianceforSustainableEnergy,LLC.
FullCircle:HowtoBringAlgaeBackintoBiofuels
AlgaeBiomassSummit
Phoenix,AZ
October25,2016
PhilipT.Pienkos
2
CostofAlgalBiomassProductionLargestHurdletoBiofuelCommercialization
Davisetal.2014.ProcessDesignandEconomicsfortheConversionofAlgalBiomasstoBiofuels:AlgalBiomassFractionationtoLipid- andCarbohydrate-DerivedFuelProducts.http://www.nrel.gov/docs/fy14osti/62368.pdf
3
CornBiorefinery
Farmdocdaily (UniversityofIllinios)2014ReallyWasanAmazingYearforEthanolProductionProfits.http://farmdocdaily.illinois.edu/2015/03/2014-really-was-an-amazing-year-for-ethanol.html.
4
There’sMoretoAlgaeThanLipids
5
CellDisruptionwithDiluteAcidPretreatment
6
NewDesignCaseforAlgalLipidUpgrading
7
CombinedAlgalProcessing
Extraction FAMEPurity FAMERecovery1st 92.5%± 1.0% 81.6%± 1.2%2nd 92.4%± 1.1% 8.9%± 1.6%total 90.6%± 1.2%
8
SignificantCostSavingsbyValorizingAlgalSugars
PretreatmentSolidsloading(wt%) 20%Acidloading(wt%vsfeedliquor) 2%Fermentablesugarrelease 74%Carbstodegradationproducts 1.50%
FermentationFermentationbatchtime(hr) 18Sugardiversiontoorganismseedgrowth 6%Fermentablesugartoethanol 98.5 %
LipidExtraction+UpgradingSolventloading(solvent/drybiomassratio,wt) 5.9Totalconvertiblelipidextractionyield 87%Polarlipidimpuritypartitiontoextract <11.5%
HydrotreatingRDByield(wt%ofoilfeed) 80%
HydrotreatingH2 Consumption(wt%ofoilfeed) 1.70%FuelYields
Renewabledieselblendstock(RDB,%ofbiomassDW) 29.2Renewabledieselblendstockfuelyield(GGE/ton) 95.5Ethanol(%ofbiomassDW) 14.9Ethanolfuelyield(GGE/ton) 30.9Totalgasolineequivalentfuelyield(GGE/ton) 126.3
$0
$5
$10
$15
$20
HarmonizationProcess
CAPProcess
MinimumFuelSellingPrice
9
SuccinicAcid:ValueAddedCoproduct
10
ScalableOptionsforProtein-BasedCoproducts
• AnaerobicDigestion• AnimalFeed• MixedAlcohols• NutrientsforMixotrophicCultivation• Bioplastics• HydrothermalLiquefaction
11
IfEverybodyHadaSurfboard…
12
SterolSurfactants
13
BiofuelProductionCostReductionswithCoproducts
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
RBD+AD RDB+EtOH+AD RDB+SA+AD RDB+SA+ES+AD RDB+SA+ES+GS
Relativ
eCo
stto
BaseCa
se
BiorefineryOptions
14
TheWholeBarrel
15
TheWholeAlgalCell
16
Conclusions
• Primaryhurdleforcommercializationofalgalbiofuelprocessesliesincostofbiomassproduction
• Conceptualmultiproductbiorefineryofferspathforwardforacommercializablebiofuel-centeredproductionprocesso Lipidstofuelsandlargevolumemoderatevaluechemicalso Carbohydratestofuelsandchemicalso Proteinstofuelsandchemicalso Additionalopportunitiesforminorbutsignificantcomponents
• Therearesignificantchallengestosimultaneousdevelopmentofmultipleproductpathwaysbutcompaniesareformingthatseekspecificalgalfeedstockstreamsfortheirownproductionprocesses.
17
Acknowledgements
• Bob McCormick• Jake Kruger• Earl Christensen• Lisa Fouts• Ali Mohagheghi• Chris Kinchin• Nick Sweeney• Eric Karp
• Lieve Laurens• Ryan Davis• Nick Nagle• Eric Knoshaug• Stefanie Van Wychen• Deb Hyman• Holly Smith
18
AnyQuestions?