biofuels and bioenergy from organic solid waste · eco-technologies. production. resource ....
TRANSCRIPT
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Biofuels
and bioenergy
from organic solid waste
Prof.Dr.ir. Piet Lens UNESCO-IHE
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POLLUTION CONTROLPOLLUTION PREVENTION
CLEANER PRODUCTION ECO-TECHNOLOGIES
RESOURCE RECOVERYwater – solid waste – gas
Key topics:• nutrient cycle, removal of micropollutants, disinfection• constructed wetlands, waste stabilization ponds, photobioreactors• source separation, solid waste management• …
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Pollution Prevention and Control
Eco-technologiesCleaner Production
Resource recovery
• Green chemistry• Integrated wastewater and solid
waste management• Biorefinery concepts
• Natural treatment systems (Wetlands, ponds, …)
• Anaerobic digestion• Photobioreactors• Phytobioremediation• Ecological engineering
• Reuse of water• Biorecovery of nutrients, minerals and metals• Bioenergy (H2 , CH4 , electricity)• Nanomaterials and chemicals
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Petroleum
Chemistry
Fuels and energy
Biomass
Chemistry- Basic and fine chemicals- Nutrients and minerals
Fuels and energy- Biogas (methane)- Biohydrogen- Bioelectricity
Refinery Biorefinery
Materials- Biopolymers and
bioplastics- Nanomaterials
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Mining BiominingMetalsMetalloidsRare Earth elements
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Sustainable development/ Need for paradigm shifts
Nanotechnologyinnovation wave
(Process intensification/
Clean production)
Macrotechnology(End of pipe)
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Create options for new technologies
(Cleaner Production)
• Green productionprocesses synthesis nanoparticles
• Process intensification
Resourcerecovery(Concentrated) waste streams
Biogenic synthesis of nanomaterials
EmergingOpportunities
• Sorption pollutants• Sensors
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ContentsBiofuel production
The biogas fuel cell chain
Partial gasification (CO – Biochar)
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Utilisation of biogas
Biogas plant of FAL Braunschweig, Germany
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Bioethanol
Lignocellulosic
biomass material used for bioethanol
production
Primary crop or product Biomass residue
Corn Corn stover, cob, etc.
Sugarcane Bagasse, barbojoa
Grain (wheat, barley etc.) Straw
Rice Rice straw, hulls, etc.
Green Coffee Husks (wet or dry)
Softwood (spruce, pine, etc.) -
Hardwood (willow, aspen, etc.) -
Energy Crops (switch grass etc.) -
LignocellulosicBiomass
Pre-treatment
Hydrolysis
Bioethanol
Wastewater
By-products
Fermentation
General outline of lignocellulose-based bioethanol
production
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Bio-chemicalBio-chemical
Fermentation
Thermochemical
Combustion
Gasification
Pyrolysis
Hydrothermal upgrading (HTU)
Mechanical/physical
Extraction
Fiber separation
Mechanical fractionation
Pressing
Pretreatment
Separation
ChemicalChemical
Catalytic processes
Chemical reactions
Esterification
Hydrogenation
Hydrolysis
Anaerobic digestion
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BiorefineryGasification New process
CO/H2
e.g. Fisher-tropsch
Biodiesel,Biopolymers
Various monomers
Specific processes,often using GMO’s
Bioethanol,C4-chemicals
Various monomers and nutrients/metals
Mixed microbial culture bioconversions
Bioenergy, Biochemicals,Biomaterials
Low water content biomass,high (corn) or low (residues) value
High water content biomass,produced in eco-technologies
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Step III:Downstream processing and upgrading
Step II:Product formation
Step I:Pretreatment
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Contents The biogas fuel cell chain
Partial gasification (CO – Biochar)
Biofuel production
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Existing situation in Bwaise III – Kampala, Uganda (Alex Katikuzi)
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18
��
Storage, transport, treatment and safe disposal of sludge! Storage, transport, treatment and safe Storage, transport, treatment and safe disposal of sludge!disposal of sludge!
Challenge in Feacal sludge management
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Existing Ecosan toilets in peri-urban Kampala
Waste stream separation
Waste stream separation
Collection of excreta for reuse
Collection of excreta for reuse
Katukiza
et al. 2010 Science of The Total Environment 409(1), 52-62.
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Production of syngas
from cokes:
C (s)
+ H2
0 CO + H2
from natural gas:
CH4
+ H2
O CO + 3 H2
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Purification of synthesis gas currently performed in chemical catalytic shift converters
CO + H2 O CO2 + H2 (G0’
= -
20 kJ/mol)
Disadvantages: high T, high P, sensitive for H2
S
and relative high exit CO
concentration
Introduction
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Therefore interest in a biological alternative:
-
Phototrophic organisms convert CO to H2
-
Thermophilic CO converting bacteria (Hydrogenogens)
Key enzymes: CODH and hydrogenaseswidespread in nature
Introduction
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Biological
water-gas shift reaction
•
Photosynthetic
bacteria:–
Rhodobacter sp.
–
Rhodopseudomonas gelatinosa–
Rhodospirillum rubrum
•
Methanogens:–
Methanosarcina barkeri
•
Chemoheterotroph:–
Citrobacter sp.
•
Carboxydotrophic
(chemoautotroph) –
Carboxydothermus hydrogenoformans
–
Carboxydobrachium pacificum
Biological CO conversion
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CO conversion pathways
CO + H2 O H2 + CO2
CO + 3 H2
CH4
+ H2
O
4 CO + 2 H2
O CH4
+ 3 CO2
4 CO + 2 H2
O CH3
COOH + 2 CO2
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CO conversion by anaerobic granular sludge
30° C
55° CAt 55°C
H2 production
Sipma
et al., 2003, FEMS Microbiol. Ecol. 44, 271-277
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Specific CO converting microorganism
CO2 & H2
CO & H2 O
Desulfotomaculum carboxydivorans
55°C
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Contents Biofuel production
Partial gasification
(CO –
Biochar)
The biogas fuel cell chain
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The biogas-fuel cell chainA holistic appraoch
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Fuel cell overview
F.....Fuel, IG…. Inert gas, React. ....... Takes part in electrode reaction
FCGas comp. Temp.°CFCGas comp. Temp.°C
-Typ PEFC80 100 200 650 800 1000
CO poison poison poison(<50ppm) (<500ppm)
CnHm IG poison
IG poison IG React. IG IG
nd poison poison poison poison(<50ppm) (<0.5ppm) (<1.0ppm)
F F
poison poison F F F
Analysis on siloxanes, halides, tar, dust, and other contaminants are missing!!!
Low Temperature FC High temperature FC
-Typ PEFC80 100 200 650 800 1000
CO poison poison poison(<50ppm) (<500ppm)
CnHm IG poison IG IG/F F F
IG poison IG IG IG
nd poison poison poison poison poison(<50ppm) (<0.5ppm) (<1.0ppm)
F F
poison poison
Analysis on siloxanes
Low Temperature FC High temperature FC
F F F
F F F
F
H2
CH4,
CO2
H2S, COS
NH3
AFC PAFC MCFC ITSOFC SOFC
F.....Fuel, IG…. Inert gas, React. ....... Takes part in electrode reaction
FCGas comp. Temp.°CFCGas comp. Temp.°C
-Typ PEFC80 100 200 650 800 1000
CO poison poison poison(<50ppm) (<500ppm)
CnHm IG poison
IG poison IG React. IG IG
nd poison poison poison poison(<50ppm) (<0.5ppm) (<1.0ppm)
F F
poison poison F F F
Analysis on siloxanes, halides, tar, dust, and other contaminants are missing!!!
Low Temperature FC High temperature FC
-Typ PEFC80 100 200 650 800 1000
CO poison poison poison(<50ppm) (<500ppm)
CnHm IG poison IG IG/F F F
IG poison IG IG IG
nd poison poison poison poison poison(<50ppm) (<0.5ppm) (<1.0ppm)
F F
poison poison
Analysis on siloxanes
Low Temperature FC High temperature FC
F F F
F F F
F
-Typ PEFC80 100 200 650 800 1000
CO poison poison poison(<50ppm) (<500ppm)
CnHm IG poison
IG poison IG React. IG IG
nd poison poison poison poison(<50ppm) (<0.5ppm) (<1.0ppm)
F F
poison poison F F F
Analysis on siloxanes, halides, tar, dust, and other contaminants are missing!!!
Low Temperature FC High temperature FC
-Typ PEFC80 100 200 650 800 1000
CO poison poison poison(<50ppm) (<500ppm)
CnHm IG poison IG IG/F F F
IG poison IG IG IG
nd poison poison poison poison poison(<50ppm) (<0.5ppm) (<1.0ppm)
F F
poison poison
Analysis on siloxanes
Low Temperature FC High temperature FC
F F F
F F F
F
H2
CH4,
CO2
H2S, COS
NH3
AFC PAFC MCFC ITSOFC SOFC
Why high temperature fuel cells ?
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Naturalgas
BiogasBioethanol
Biomassgasification
Landfilllgas
Biomethanol
Sewagegas
waste waterFuel cell
Fuel Flexibility
Biodiesel
Alternative Bio-Fuels
Alternative
Industrial Fuels
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Variety of different Fuels within the EU
Biodiesel and Bioglycerin
Gasification of Wood and Cardboard
Gasficatioin of Solid SewageResidues
Landfill Gas
Biogas fromSolidfermatationProcess
Regional distributionof Biogas FacilitiesProfiles
Oils
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Closing Energy
Cycle – role of fuel cells
HotModule
Electricity
400°C Heat
50°C Heat
Clean CO2 Fertilising
New Value Food
Substrate Substrate CleansingCleansing
SuperHygienic Green House
High Value FoodHygienic Mineral
Fertiliser
Deposit Cleansing
Biogas
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Operational Experience•
Construction of different Gas Cleaning Units for H2
S Removal from Biogas
•
Construction of three Testfacilities
for Stack Operation
•
Operation of combined systems at different locations operated with different types of Fuel
Pinto, Spain, 2.000 hours operation (Waste treatment plant, Urbaser)
Owschlag, Germany, 2.200 h operation (Industrial research center, Seaborne GmbH)
Locations of Biogas – MCFC Testruns
• Slovakia: Agricultural Biogas
• Germany: Biogas from Cattle Sewage and Co- Fermentation of industrial waste (Food)
• Austria: Sewage Gas from Waste Water Treatment
• Spain: Landfillgas
Linz, Austria, 1.500 hours operation (Waste water treatment plant in Asten, Linz AG)
Nitra, Slowak Republic, 2.400 hours in operation in first cycle, over 3.300 hours in the 2nd (Agricultural Biogas plant at Uni Nitra) and 3.600h in the third cycle
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Biogas upgrading
BiogasProduction
Biogas upgrading
Fuel cell for electricity and heat
BiogasProduction
Biogas upgrading
Fuel cell for electricity and heat
Biomass Utilization
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Principles of biogas upgradingRemoval of hydrogen sulphide
Gas type H2 CH4 CnHm CO2 N2 CO H2S NH3 OthersVol% Vol% Vol% Vol% Vol% Vol% ppm ppm
Biogas from fermentation1Biogas fromagriculturalbiogas plants
0 55-70 - 30-45 0-2 - 500 100 Siloxane,Oxigen
Waste water gas - 65 - 35 - - 1000 100 Siloxane,Oxigen
2Landfill gas - 50-60 - 40-50 - - 0-50 - Aromates,Chlor comp.,Siloxanes
Biogene gas from thermal gasification3Biomass-gasification
4,5 14,8 - 10,6 39,6 19,1 100 2000 Dust, Teer(3000ppm)
FossilNatural gas - 93 4,9 1 1,1 - 1 - Inert gas
1 Jensen, J.K., Jensen, A.B.: Biogas and natural gas – fuel mixture for the future, 1st World Conference and Exhibition on Biomass for Energy and Industry,Sevilla, 2000
2 Christenson, T.H., Cossu, R., Stegmann, R.: Landfilling of Waste, Biogas, E&FN Spon, London 19963 Kivisaari, T., Björmbom, P., Sylwan, C.: Studies of Biomass MCFC Systems, Journal of Power Sources, 104 (2002) p. 114-124
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Principles of biogas upgradingRemoval of hydrogen sulphide
Physical – Chemical Methods
Biotechnological Methods
High efficiency
Lower investment costs
Lead to savings on energy
Avoid catalysts
Avoid formation of secondary contaminants
BiofilterBioscrubberBiotrickling filter
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Biotrickling filter conceptRemoval of hydrogen sulphide
Microorganisms to degrade H2 S:
bacteria genus Thiobacillus
Common bacteria.
They do not oxidise CH4.
Their carbon source is CO2.
They obtain energy for growth from oxidising inorganic sulphur substrates.
H2 S + 0.5 O2 S + H2 O
H2 S + 2 O2 + 2 OH - SO42- + 2 H2 O
clean gas
water, acids/ bases,nutrients
raw biogas
inert packingwith biomass
liquid recirculation
drain
air
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Pilot plants
Biotrickling filter concept
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Principles of biogas upgradingSiloxanes – problems in sewage and landfill gas
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Silicon containing compoundsLinear and cyclic siloxanes
CH3 Si
CH3
CH3
O Si
CH3
CH3
CH3
hexamethyldisiloxane (L2)
CH3 Si
CH3
CH3
O Si
CH3
CH3
O Si
CH3
CH3
CH3
octamethyltrisiloxane (L3)
octamethylcyclotetrasiloxane (D4)
Si
O
SiO
Si
OSi
O
CH3
CH3 CH3
CH3
CH3
CH3CH3
CH3O
SiO
Si
SiO
CH3CH3
CH3
CH3
CH3
CH3
hexamethylcyclotrisiloxane (D3)
Si
O
SiO
Si
Si
O
CH3
CH3 CH3
CH3
CH3
CH3CH3
CH3
OSi
O
CH3 CH3
decamethylcyclopentasiloxane (D5)
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Book about the Results of the EU-granted EFFECTIVE Project
ISBN 3-85487-626-2
With contributions from:
Loreto Daza (Ciemat)Jan Gadus (Univ. of Nitra)Joachim Hoffmann (MTU CFC Solutions)Mogens Hedegaard (Seaborne)Jesus Gil Diez (Urbaser)Peter Berger (MTU CFC Solutions)Piet Lens (Univ. of Wageningen)Knut Stahl (RWE)and many more……
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Hard cover book
The integration of Biomass Fermentation and Fuel Cells (FC) technology creates a new and interdisciplinary research area. This book cross-links scientists of all fields concerned with Biomass Fermentation, Fuel Upgrading and Fuel Cells at European and World level.