the future role of biofuels in achieving american energy independence christine zeivel energy law...
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The Future Role of Biofuels in Achieving American Energy Independence
Christine Zeivel
Energy Law
Spring 2007
Professor Bosselman
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What are Biofuels?
a combustible fuel produced from any sort of vegetation (“biomass”)
3 MAIN TYPES: Bioethanol Biodiesel Purified biogas
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Source: Energy Information Administration
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History
Production triggered by 1970s oil shocks– Ethanol from sugarcane in Brazil– Ethanol from corn in U.S.
Grew rapidly until stagnation in 1990s Oil price increases after 2000 re-stimulated
production
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Current Usage
2005: 2% of global gasoline usage
Ethanol Production– 2000: 4.6 billion gallons– 2005: 12.2 billion gallons
Biodiesel Production– 2000: 251 million gallons– 2005: 790 million gallons
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Ethanol
Mainly produced by fermenting sugar or starch portions of raw agricultural material– Sugar (sugar beets, sugar cane)– Starch (corn) – converted into sugar– Cellulose (trees & grasses) – more difficult to
convert to sugar
Sugar & starch come from fuel or energy crops varying by region
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Ethanol Production Process
Grind up feedstock so more easily & quickly processed
Sugar is dissolved out of the material Sugar fed to microbes that use it for food,
producing ethanol & carbon dioxide in the process
Purify ethanol to desired concentration
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Current U.S. Usage
Blended with gasoline (reduces mileage by 2% - 30 mpg = 29.4 mpg)
– E10 most common blend– E85 requires Flexible Fuel Vehicle (FFV)
E85 is a leading US alternative fuel 3.5 million autos that can run on E85 fuel apprx. 1000 public refueling sites
2004: 3.4 billion gallons from 32 million tons of corn, 11% of harvest
2007: 116 distilleries, 90 slated for construction 2% of transportation needs
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U.S. Ethanol Policy
51¢/gallon subsidy CAA 1990 amendments required sale of
oxygenated fuels in areas with unhealthy CO levels = increase
E85 & blends with higher concentrations of ethanol qualify as alternative fuels under the EPA of 1992
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Illinois Ethanol Policy
Sales & use taxes don’t apply to ethanol-blended fuels (containing between 70% and 90% ethanol) sold between July 1, 2003, and December 31, 2013.
Will apply to 100% of proceeds from sales made after.
35 ILCS 120/2-10; 35 ILCS 105/3-10
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Chicagoland Area E85 Pumps
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Advantages of Ethanol
Less toxic, less risk from spills “Carbon Neutral” – same amount of CO2
emitted is absorbed during growth process Easily integrated into current transportation
system– can blend up to 10% w/ gasoline (E10)– Modified engines (FFVs) can take up to 85%
ethanol (E85)
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Advantages of Ethanol
Energy efficient – yields 25% more energy than used in corn production – growing corn, harvesting, distilling into ethanol
Decreased fossil energy input– Gasoline: 1.23 million BTU/ I million BTU
delivered– Ethanol: .78 million BTU/ 1 million BTU delivered
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Future of Ethanol
Industry set for 160% increase in next 2 years 116 existing U.S. ethanol-fuel distilleries
– use 53 million tons of corn– capacity to produce more than 5.6 billion gallons annually.
80 refineries are under construction & 7 are expanding– Boost demand to 139 million metric tons of corn– add more than 6 billion gallons of capacity when complete
USDA predicts corn acreage will increase more than 15% in 2008 than in 2007
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Is Ethanol the answer?
CATO Institute
"Ethanol will not lead to energy independence. If all the corn produced in America in 2005 were dedicated to ethanol production (and only 14.3% of it was), U.S. gasoline consumption would have dropped by only 12%. For corn ethanol to completely displace gasoline in this country, we would need to appropriate all U.S. cropland, turn it over to ethanol production, and then find 20% more land on top of that."
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And on top of it….
Average fill up of a 25 gallon SUV gas tank with ethanol requires same amount of grain as it takes to feed 1 person for 1 year.
Every person in the US uses 500 gallons of gasoline per year. That means that every American would use enough gas to feed 20
people over the course of the year. There are 300 million people in the US, and 300 million people,
each using enough food to feed 20 people to run their cars, would require enough grain to feed 6 billion people.
“So realistically, we are not discussing replacing 75% or 50% of our imported oil with biodiesel or ethanol – period. It isn’t possible. And if we are talking about a more realistic number, like 10-15%, that can only happen with policy programs designed to create, encourage, and perhaps require conservation.”
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But impact on other industries?
USDA has said that meat supply will fall this year because of high cost of feed
Beef, pork & chicken is expected to decline by 1 billion pounds
Typically, meat production in the United States rises by about 2% a year, but pressure from American ethanol producers has sent the price soaring to $4 a bushel
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Biodiesel
2 methods utilized
Fuel – “Neat” biodiesel is 100% Fuel additive – “Biodiesel blend” is neat
biodiesel blended with petrodiesel (Bxx)
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Biodiesel Production
Made from: – straight vegetable oil– waste cooking oil– animal oil & fat
Transesterification – process used to produce biodiesel by separating the glycerin from the fat or vegetable oil– methyl esters (chemical name for biodiesel)– glycerin (valuable byproduct usually sold to be used
in soaps and other products)
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Biodiesel Basics
Largest possible source of oils = oil crops– such as rapeseed, palm or soybean – Soy driving force b/c capacity, surpluses, & declining
prices– BUT expensive
Currently, waste oils (grease) & fats largest source because they are FREE
Not just raw vegetable oil!– Has to meet strict industry standards– Have to register with EPA
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Algae – “Green Gold?”
Currently being developed 30 times more oil per acre
than current crops used no sulfur non-toxic highly biodegradable not subject to a commodity
risk as is crude oil, corn & soybeans.
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Biodiesel is approved for use in U.S.
Registered as a fuel & fuel additive with the Environmental Protection Agency (EPA)
Meets clean diesel standards established by the California Air Resources Board (CARB).
Neat biodiesel designated as an alternative fuel by DOE & DOT.
Only alternative fuel to fully complete health effects testing requirements of 1990 Clean Air Act Amendments.
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U.S. Biodiesel Policy – EPA of 2005
Small Agri-Biodiesel Producer Tax Credit– volumetric based income tax credit for the
production of agri-biodiesel – $.10/gallon (biodiesel made from first-use vegetable oils and first-use animal fats)
Alternative Fuel Refueling Infrastructure Tax Credit – tax credit for installation of certain qualifying fueling
infrastructure that dispense alternative fuel, including biodiesel blends B20 and higher.
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U.S. Biodiesel Policy
Biodiesel Excise Tax – Extends the tax credit for biodiesel producers established in
2004 through 2008. – $.50/gallon of waste-grease biodiesel– $1.00 for agribiodiesel. – If used in a mixture,
$.01/ percentage point of agribiodiesel used or $.005/percentage point of waste-grease biodiesel.
Consumer Credits– Income Tax credit– Credit for fed tax paid
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Illinois Biodiesel Policy
Sales & use taxes apply to 80% of proceeds from the sale of biodiesel-blended fuels made between July 1, 2003, and December 31, 2013.
Sales & use taxes don’t apply to the proceeds from sale of biodiesel blends containing more than 10% biodiesel made.
Taxes apply to 100% of the proceeds from sales made thereafter.
35 ILCS 120/2-10
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National Biodiesel v. Diesel Prices
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Current U.S. Usage
2005: EPA Act 75 million gallons (vs. 62 billion diesel fuel) Tripled in 1 year (25 million gallons in 2004)
End of 2006 105 producing plants 77 more slated for construction in next 1 ½ years available at over 1,000 pumps
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Current U.S. Usage
National Biodiesel Board predicts 150 million gallons in 2007
More than 300 major fleets – U.S. Postal Service– U.S. Depts of Defense, Energy & Agriculture– Transit authorities, schools, parks
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Chicagoland Biodiesel Pumps
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Advantages of Biodiesel
Safe to handle, store & transport Less toxic, less risk from spills Higher flash rate = safer in a crash
“Carbon Neutral” - same amount of CO2 emitted is absorbed during growth process
– But other emissions during process
= 78% reduction in CO2 through life cycle (neat)
= 15% reduction in CO2 through life cycle (B20)
= 35% reduction in CO through life cycle
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Advantages of Biodiesel
Reduces other pollutants 35% reduction in unburned hydrocarbons through life
cycle – smog & ozone precursor 8% reduction in sulfur oxides – acid rain 3% reduction in methane 32% reduction in particulate matter (PM10 68%) 83.6% reduction in PM soot 79% reduction in wastewater 96% reduction in hazardous waste, but double non-
hazardous waste
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Future of Biodiesel
Most major car manufacturers offer FFVs running on E85 where it is popular
– Japan– South Korea
DaimenChrysler & Volkswagon working on “SunDiesel” made from crops grown specifically for energy use (willow), waste wood & other plant material
– GHG & other pollutants reduced up to 90%– Manufacture cars as soon as tech developed to produce
enough fuel
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Is Biodiesel the Answer?Case Study: North Carolina Zoo
Fuel for trams, buses, trucks, tractors & equipment Restaurants provide about 1500 gallons of used oil Current capacity can produce 1500 gallons of pure
B100 or 7,500 gallons of B20 blend annually Enough B20 to meet 40% of Zoo fuel demand. Plans to increase the batch size & add 2nd reactor tank
will increase output to 17,000 gallons of B20 to meet 100% of Zoo diesel fuel needs
As production capacity increases, the Zoo will need to obtain additional waste oil from local restaurants
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Is Biodiesel the Answer?
It would be very ambitious to produce the amount of diesel used on the farm
– That would require all of the vegetable oil currently produced in the U. S. & about 15% of our total production land area.
It would in fact be very ambitious to have even a 0.5 billion gallon per year biodiesel industry
– This would be only 1.5% of our on-highway diesel fuel or less than 1% of our total fuel oil and kerosene use
– would require all of the surplus vegetable oil (0.13 bil. gal.), 1/2 of the used oil (0.17 bil. gal.), and all of the oil which could be produced on the 37 million acres of
idle crop land (approx. 0.3 billion gal.) or the equivalent by displacing current crops
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Biogas
Composed of 60% methane Purified or refined biogas has
85-96% methane
Sources – “wet biomass”– Landfills – methane collection – Water sewage treatment plants– Gas from biomass (fermentation
of organic wastes) Animal manure Industrial organic wastes Biogas Pump in Sweden
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Biogas Production
Bacteria in bio-degradation of organic material under anaerobic (without air) conditions.
– Digester: heats & agitates to produce anaerobic conditions – Small Scale v. Large Scale
Methanogens (methane producing bacteria) help degrade organic material & generates biogas
Purified: Biogas is passed through a gas purification system which removes excess moisture & hydrogen sulphide
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Small Energy Uses
fuel to run power generators, boilers, burners, dryers or any equipment using propane, gas or diesel.
– requires minor adjustments to run on biogas
electricity can be used to power small appliances & lights
dual-fuel generator that permits the use of conventional diesel fuel with or without biogas (good if biogas shortage)
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Animal Manure & Plant Residue
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Industrial Organic Waste
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Integrated biogas plant for treatment of 500 people’s dung waste built in China 2005. The
biogas is provided as fuel for a restaurant.
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Natural Gas Substitute
Substitute or combined with natural gas – Can be used in natural gas vehicles if upgraded to
85% methane– When used alone, faster breakdown of parts &
engine overheating
Injected into natural gas grid– if injected close to the production site (low pressure
network) it can only be used locally – for high pressure injection the installation need
special infrastructures
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U.S. Biogas Policy
AgSTAR Program– voluntary effort jointly sponsored by the U.S. EPA, U.S. Dept
of Agriculture, & U.S. Dept of Energy. – encourages the use of methane recovery (biogas)
technologies at the confined animal feeding operations that manage manure
Biogas Production Incentives Act of 2007– Proposed by Senator Ben Nelson of Nebraska & of Larry
Craig of Idaho– Providing biogas producers with a tax credit of $4.27 for every
million British thermal units (Btu) of biogas produced
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U.S. Biogas Usage
Most of the methane from wastes is allowed to escape into the atmosphere– about 100 dairy farms– few pig farms– some landfills– few municipal sewage treatment plants
125 operational digester systems – methane emission reductions of approximately
80,000 metric tons– energy generation of about 275 million kWh.
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Reduces Waste?
the amount of waste going in the digester is almost = to amount coming out
BUT quality of the waste is altered for the better – less flies & smell (90%)– better fertilizer– organic load reduced– less polluting
Waste coming out of digester can be separated– compost solid part – use liquid part as fertilizing irrigation or to be treated further for
rejection in nature
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Other Advantages of Biogas
savings for farmers transforms the manure/slurry into a high quality
natural fertilizer while reducing energy expenses Reduces GHGs - CO2 neutral Very low particulates emissions NOX Reductions (50% compared to diesel) possibilities of pathogen reduction through
sanitation
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Is Biogas the Answer?
1998 U.S. DOE study concluded that in the U.S., it is feasible to capture & use over 1/3 of the biogas potential from landfills, animal waste & sewage equivalent to 6% of all the natural gas used in the U.S.
If all of this were used in transportation, it would displace 10 billion gallons of gasoline per year
If all this biomethane were used in vehicles, this would reduce GHGs by 500 million metric tons of CO2 per year (removing emissions equivalent to 90 million light-duty gasoline vehicles off the road)
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The Problem of Energy Dependence
U.S. oil imports increased 1100% since 1960
Production simultaneously declining
Consumes 25%, produces 3% 20 million barrels/day
– Imports 13 million barrels/day (over 60% used)
By 2025, DOE predicts 26 million barrels/day
– importing 70%
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Why is Energy Dependence Bad?
Oil-market rollercoaster ride Greatly impacts foreign policy decisions More than 30% of U.S. energy needs & 50% of
petroleum needs depend on:– unstable countries– undemocratic countries– overtly hostile countries
Funds development of weapons of mass destruction? Undermining fight against terrorism?
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It’s the Economy, stupid
$232 billion/year ( = $450,000/minute) $49.1 billion/year to protect oil flows in Persian Gulf countries
(doesn’t include second Iraq war) $159.1 billion/year lost in GNP 3 oil shocks = between $2 & $2.5 trillion 828,400 U.S. jobs 9/11: $200 billion
– Bin Laden has publicly indicated that World Trade Center attacks were a response to the U.S. “occupation” of Saudi Arabia. American military presence in Saudi Arabia existed to defend the house of Saud, an undemocratic regime that guarantees the United States access to Saudi Arabian oil.
Actual cost of refined oil from Persian Gulf = $10/gallon
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So Can Biofuels Lead the U.S. to Energy Independence?
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Not so much….
At 6,000 barrels of fuel per square mile per year, you will not get a substitute for petroleum
“In fact, to replace worldwide petroleum use with biofuel you would have to consume 10.8 million square miles of farmland with the highest yielding biofuel crops & there are only 5.8 million square miles of farmland on earth.”
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Another View: NRDC Study
Aggressive action to develop biofuels between now and 2015 would position America to produce, by 2050, the equivalent of more than 3 times as much oil as we currently import from the Persian Gulf (includes cellulosic)
If combined with better vehicle efficiency & smart-growth urban planning, biofuels could virtually eliminate our demand for gasoline by 2050
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But should we? Parting thoughts…
Market volatility (weather, pests, etc) Food for fuel? Already struggling to feed 6.5 billion ppl Increase in crop prices
– poorest people in the world already spend 50% or more of their income on food, already experiencing 25% rise in grain prices
Environmental disadvantages– Economic pressures to clear land pose major new threat to
plant & animal diversity– Current biofuel production practices increases soil & water
depletion & desertification – Possibly lead to animal cruelty?