Aviation Biofuels - All Energy

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Aviation Biofuels

All Energy 2012 - Paul Mitchell, University of Aberdeen

Bioenergy Feedstock

Conversion

Co-Products

Chemo-Mechanical

Food/Fibre Crops

Biological

Energy Crops

Thermochemical

Product

Heat

Electricity

Transport fuel

Bio gas

Methane

Bio diesel

Diesel Ethanol

Bio alcohols Butanol

Road & Rail

Transport Biofuels

Methanol F-T Fuels HRJ Fuels ATJ Fuels

Aviation

Bio kerosene

Jet A-1 Commercial Jet 5 & 8 Military

Feedstocks Oil-rich plants for biodiesel

Oil Seed Rape

Oil Palm

Jatropha

Sugar & Starch for alcohols

Sugar beet

Sugar cane

Corn

Feedstocks Lignocellulosic for diesel, alcohols, hydrocarbons

Corn stovers

Miscanthus

Forest residues

Reed canary grass

Willow coppice

Switch grass

Feedstocks Algae – diesel, jet fuel, hydrocarbons

Algal Biofuels Diesel

Jet A Biochemical Green Diesel

Syngas

Oils

Thermochemical

Ethanol Biochemical

Power Hydrogen

Methane

Land to Produce 100% of Jet Fuel Requirement

Jet Fuel Source Algae

Amount of Land Required (km2) 68,000

Camelina

2,000,000

Jatropha

2,700,000

Current World Corn Production 50:50 blend

809,000 6% Global arable land

Supply – Demand Issues Impact on landuse Food-fibre-fuel debate Food production and price Biodiversity issues Ethnic peoples Sustainability Climate change LCA studies

Land Use

Energy

Climate Change

Population Growth

Food Emergent Pests and DIseases

Water

All promoting reassessment of bio-based energy Focus on algae and lignocellulosics (wood & grass) Heat and power – dis-economies of scale, competition for resource – restricts scale Transport – focus now on biofuels for aviation and marine applications

Opportunities for Synthetic Biology

Can control the inputs through selecting crop & production systems

Production of appropriate “drop-in” fuel

Can produce a range of energy sources depending on conversion technology

Can select & modify the microorganism

Aviation Biofuels Year

Target

2012

Aviation industry starts trading CO2 permits under ETS*

2017

IATA – 10% biofuels Reduce Carbon footprint by 80%

2050

IATA – 40% biofuels

*400 litres aviation biofuel offsets 1 tonne CO2 Jet Fuel Use

Year

Global: 200 million tonnes

2010

EU: 53 million tonnes

2010

300-350 million tonnes

2030

Need “Drop-in Fuels” based on SPK – Synthetic Paraffinic Kerosene Two routes: Fischer-Tropsch (FT) Jet Fuel - from lignocellulosics (ASTM D 7566 at 50:50) Hydroprocessed renewable (HRJ) Jet Fuel - from plant oils

Test Flights with Alternative Fuels Carrier

Aircraft

Alt Fuel

Blend

Virgin Atlantic

B747-400

Coconut & Babassu

20% 1 engine

Air New Zealand B747-400

Jatropha

50% 1 engine

Continental

B737-800

Algae & Jatropha

50% 1 engine

JAL

B747-300

Camelina, Jatropha, Algae blend

50% 1 engine

KLM

B747-400

Camelina

50% 1 engine

US Military

A-10C Thunderbolt II Camelina F/A-18 Super Hornet F-22 Raptor Apache AH-64D Helicopter

50%

Aviation Biofuels

Flightpaths for Aviation Biofuels USDA – Farm to Fly programme One million gallons of biofuel per year by 2018 EU programme 2 million tonnes of aviation biofuels by 2020 Mainly based on Neste hydrogenated vegetable oil technology Potential 400,000 t/a F-T SPK by 2020 Potential 100,000 t/a HPO Potential 160,000 t/a from algal oil Gives 1% replacement of global aviation kerosene by 2020 HRJ/HEFA – Hydroprocessed esters & fatty acids FT-SPK – Fischer Tropsch synthetic paraffinic kerosene ATJ – Alcohol to Jet PTJ/HPO – Pyrolysis oil to jet/Hydrogenated pyrolysis oil FRJ – Fermented renewable jet

Routes to SPK F-T process*

Synthesis gas CO + 2H2

LignoCellulose

HRJ* Bioderived oil

Fischer-Tropsch synthesis

Gasification

O2

Olefins, naphtha, long chain paraffins Hydrocracking & separation

Jet fuel

Cleaning & Conditioning

Long chain paraffins

Hydrotreating

*ASTM Approved as 50:50 mix with Jet-A

Hydrocracking & separation

Jet fuel

Aviation Biofuels Alcohol to Jet Utilises Oligomerization – process of “building C chains”

Ethanol Dehydration

Alcohol

Oligomerization

Distillation

Hydrogenation

Jet Fuel

Aviation Biofuels Emerging Processes – Alcohol to Jet (ATJ)

Cobalt Technology with Albemarle Corp & NAWCWD Bio n-Butanol to JP-8 Tested 50:50 in A-10 Thunderbolt II Engine Woody biomass

Oligomerization

Fermentation

Distillation

N-butanol

Hydrogenation

1-butene

Jet Fuel

Aviation Biofuels Emerging Processes – Alcohol to Jet (ATJ) Thermo-biological processes

Wood Ljungdahl Pathway

LanzaTech with Swedish Biofuels Lanza Tech CO from SynGas (CO & H2) or offgas from steel works Fermentation (Clostridia sp) to alcohols (ethanol, butanol, propanol)

Source: Yikrazuul, 2010

Reductive acetyl-CoA pathway

Swedish Biofuels technology Alcohols to Jet Fuel C2-C5 sugars

Source: Swedish Biofuels AB

C4-C20 Hydrocarbons

Methanogens or acetogenic organisms • H2 as electron donor (Energy Source) • CO2 as electron acceptor (Carbon Source) • CO2 reduced to CO • CO converted to acetyl coenzyme A

SPK for other uses Project Lapponia – Saab 99 Petro designed to run on kerosene

Kerosene heating stoves, pumps, lights, etc

Aviation Biofuels

Mosier et al, 2005

All Energy 2012 - Paul Mitchell, University of Aberdeen