Project Narrative
IDENTIFICATION AND SIGNIFICANCE OF THE OPPORTUNITY
Locally produced Ethanol is an
efficient, renewable alternative energy.
As an alternative to imported oil, it is superior for many reasons:
Locally produced Ethanol
relies uses
on
agriculturally-related manufacturing technology.
The flow through the production pipeline is simple: grow the feed-stock,
prepare it for processing, ferment it into a low alcohol content “beer”
worst and then distill the beer into Ethanol.
The best candidate
crop
that we can
be grow locally
is the sugar beet, a high sugar content feed-stock,
which grows well in our climate and soil.
We will develop equipment to plant, harvest, and prepare the sugar beets
for processing in small quantities,
as well as
and the
fermentation and distillation equipment for small-scale Ethanol distillation,
storage, and distribution.
The opportunities presented by Local production of Ethanol far outweigh the
technical problems. This project is
an opportunity to help solve the employment problem, the imported oil problem,
the high cost of fuel, the sending of money out of the town for fuel, and the
carbon dioxide problem, which is a major contributor to climate change.
We will show that a small community can become energy independent, wean
themselves off of
imported oil, convert from a high carbon footprint fuel to a carbon neutral
fuel, and save money at the gas pump, while producing jobs for local residents
and keeping dollars in the local economy.
We will develop the process and equipment to bring these opportunities to
other small communities, too.
The technical problems that we will solve are problems of scale in the farming
phase and in the distillation phase.
Existing sugar beet harvesting equipment, as used by sugar companies, is
too large to work in small fields, so to develop equipment for a small farm we
need to research and develop smaller equipment and modify it to meet our needs.
To prepare sugar beets for fermentation, we must research and develop
grinding and pressing equipment to extract sugar solution from beets on a small
scale. And we must research and
develop properly sized fermentation and distillation equipment to produce
Ethanol from the beet sugar solution.
BACKGROUND AND RATIONALE
The United States has a mandate to increase the amount of ethanol used as fuels
in automobiles to 36 billion gallons by 2022.
There has been an effort to meet that goal by distilling ethanol from
corn, but the goal cannot be reached by using only corn.[1]
As of 2006, it took 20% of the corn
grown in all of the USA to provide just 2% of our transportation fuel.[2]
Producing ethanol from corn yields a net energy gain of just 34%,
because it takes 100 BTU of energy to produce ethanol that returns 134 BTU of
energy. That is better than
gasoline, which has negative energy efficiency; that is, gasoline has only an
80.5 BTU return on every 100 BTU used to produce it.[3]
We will address two of the shortcomings of corn based ethanol by using
sugar beets instead of corn, and by producing, storing, and using the ethanol
locally, without the energy loss and increased price that comes from trucking
the fuel from its point of production to its point of consumption
and the cost of trucking the feed-stock to the
distiller.
RELATIONSHIP WITH RESEARCH AND DEVELOPMENT
In Phase I, we will research and design the equipment and the processes to
produce ethanol from sugar beets, including equipment for planting, harvesting,
grinding, pressing, distilling and storing beets, sugar solution, and ethanol.
Our process will be
both carbon
neutral and positively energy efficient, as these two requirements are critical
to any sustainable method of producing energy.[4]
In Phase II, we will build and test equipment and processes.
We will use small tracts of land that are not currently producing food,
so as not to disrupt local ranching.
We will develop these small, unused plots into productive farms.
Because there are no small beet harvesters built in the USA today, we will
modify an older, smaller harvester like the Stoll V202.
It is a dual process harvester that defoliates and harvests, so it can
separate beet tops from the sugar beets.
It is small and portable enough to be practical for our use in smaller
plots of land. The modifications to
this harvester will include: 1) adding a lift system to discharge beet tops into
a mobile cart; and 2) replacing the built in beet compartment with a delivery
system that will load the beets into another mobile cart.
These mobile carts will be small enough to be pulled in tandem behind the
harvester, or by another small tractor or truck.
The dual carts will be designed to dump their contents at the grinding
and pressing machinery.
These small pieces of equipment can be used in small communities both in the USA
and abroad. The commercial sector
may replicate and improve on the small-scale equipment design.
The Federal Government can use the results of our Phase I research to
guide future funding in other small, rural towns.
Other researchers can use our data to improve on the processes and
equipment. The USA will benefit
when small communities learn to use this alternative fuel in their cars.
This subtracts from the 140 billion gallons of gasoline and 60 billion
gallons of diesel that we use annually in the USA, and adds to the push toward
the goal of 36 billion gallons of alternative fuel by year 2022.
The sister industries that this project facilitates include a dairy, with
the beets, and a greenhouse, heated with the hot water from the distiller tower.
The estimated total cost of this approach, relative to benefits, is small.
Because no ethanol is produced from sugar beets in the USA, we have no
real data to estimate the cost/benefit ratio accurately.
At least one benefit has no clear money value: Improving the
social-well-being of the community.
We expect to make ethanol for less than $2.00 per gallon when we are
operational, which should be far less than the price of gasoline
at that time
then.
We can sell the ethanol at a modest profit to
pay expenses and for the equipment.
Other communities
to purchase can
buy the equipment, based on our design, and pay for the equipment with
the profit from their ethanol sale
This way the benefits will spread to
other communities.
Demonstrating a successful system for producing ethanol locally will lead to
changes in policy. As communities
learn that they can produce renewable fuel, their people will overcome their
misconceptions about ethanol, and provide educated input to their legislators,
influencing their decision-making on ethanol and
other renewable fuels. Our sun is
the only energy source that can meet the world’s energy demands (14 TW) while
reducing carbon dioxide in the atmosphere (385 ppm.)
PHASE I TECHNICAL OBJECTIVES
The first technical objective is to design an ethanol production process that is
both carbon neutral and positively energy efficient.
To this end, we will research and develop equipment for planting and
harvesting sugar beets in small fields, grinding and pressing the beets to
extract sugar solution, fermenting and distilling the sugar solution into
ethanol, and storing and distributing the finished fuel product.
At every step, we will weigh and analyze
the energy efficiency, and weigh the impact on the atmosphere.
The second technical objective is to prepare for cellulosic ethanol, a
technology that will dramatically increase the ethanol yield per acre.
Although cellulosic ethanol is not practical
at this time
now, we expect it to be a viable technology,
soon. We will design our process
with cellulosic ethanol in mind, so that when the technology is available, it
will be easy to switch from sugar-based ethanol to cellulosic ethanol.
The third technical objective is to prove that a
small bio-fuel facility for a community of 3,000 to 5,000 people is practical,
will promote the local economy, and
can be
will easily be
reproduced in other small communities.
PHASE I WORK PLAN
Task 1 – Planting and Growing Sugar Beets
We will study the history of sugar beet farming in Salmon and areas with similar
climates, enlisting the aid of
local farmers who
have
are raising sugar beets
locally
nearby.
We will investigate no-till (strip tillage)
planting, a method that is friendlier to the atmosphere,
less expensive than tilling, and which could be
applied to sugar beet
seeds planting.
We will compare the advantages of standard beet seeds to “Round-Up Ready”
beet seeds, which require less chemicals to be
applied to the soil. We will
determine the requirements for crop rotation, and which crops are best to grow
in rotation with sugar beets. We
will analyze the growing season, determine the number of days from planting to
harvest for sugar beets grown locally, and estimate the yield, in tons per acre,
of the beets and their sugar content, to calculate the yield, in gallons per
acre, of ethanol.
Task 2 – Harvesting Sugar Beets
Modern beet harvesting equipment manufactured in the USA is designed for use on
huge farms, so it is not practical for our small-plot model.
We will determine how to modify existing small beet harvesting equipment
to be suitable for use in smaller plots of land, and engineer a system of mobile
carts to haul off both the beets that come out of the ground and the foliage
above the ground, so that none of the bio-mass is wasted.
We will investigate
usages
uses for the beet tops
and for the spent beets, and determine their value as animal feed.
Task 3 – Storing Beets
Because sugar beets cannot be grown year round in this climate, and because
there is a narrow window of opportunity to harvest them, the beets all arrive at
the same time. So the production
curve for beets is flat, except for a spike at harvest time.
But fuel usage is fairly constant, year round, so the demand curve for
the finished product, ethanol, is flat.
We will develop methods of flattening out the supply curve to more
closely match the demand curve; most of these methods involve storing raw
materials, intermediate products, or the finished product.
Sugar beets can be stored for
some time months
after harvest, if there is proper air flow around the beets.
We will design and test methods for storage that ensure proper air flow
to the stored beets. This storage
will be during periods of cooler weather at the end of the growing season; this
cool storage will increase the sugar contents
of the beets. We will measure the
increase in sugar content during storage.
Task 4 – Extracting Sugar from Beets
We will compare different machines for shredding and pressing sugar beets to
separate sugar solution from pulp, measure the sugar content of the solution,
and investigate uses for the left over pulp, either as animal feed or as a
secondary source of sugar to feed the fermentation process.
We will modify existing shredding and pressing equipment to optimize the
sugar extraction.
Task 5 – Storing Sugar Solution
The second phase of storage, in order to flatten the supply curve, is storage of
the sugar solution, the fermentation solutions, and the
dilute ethanol-water solution.
We will determine the proper storage containers and methods to assure the
sugar solution can be stored for months without damage (or
fermented and stored), and consider different locations for storage, and
the costs for storage facilities and storage tanks.
Task 6 – Fermenting Sugar Solution
People have been converting a dilute sugar solution to a dilute ethanol solution
worldwide for thousands of years.
These fermentation processes are not published for the sugar beet fermentation.
This project devises a cost effective fermentation to convert sugar to
fuel ethanol, using the robust yeast available today.
We must vary the temperature of the fermentation to research the most
efficient and complete fermentation.
Task 7 – Distillation into Ethanol
Ethanol can be separated from water by distillation.
Small and scalable distillers for this project are not available.
The process of the big distillers of the
corn-ethanol plants is proprietary and not available.
This project will research and develop a small and scalable distiller
that is heated by an external furnace, to allow for various fuels for the
distillation.
Task 8 – Storing Ethanol
The final phase of storage, to flatten the supply curve, is storage of the
ethanol solution. We will determine
the proper storage containers and methods to assure the ethanol solution can be
stored for months without damage, and consider different locations for storage,
and the costs for storage facilities and storage tanks.
Task 9 – Delivering Ethanol
We will determine the equipment and facilities required to deliver the ethanol
fuel to the consumer.
POTENTIAL POST APPLICATION
SATISFYING THE PUBLIC INTEREST
Strategic Goal 1: Enhance International Competitiveness of American Agriculture:
The small-scale fuel production equipment and techniques can work in developing
countries. The feed-stock preparation
equipment can be adapted to a variety of feed-stock.
America can export the technology for small-scale bio-fuel production to
developing and developed countries around the globe.
Strategic Goal 2: Enhance the Competitiveness and Sustainability of Rural Farm
Economics:
When small farm communities produce the transportation fuel that they use, their
economy improves. Farmers who are
producing low-income crops like hay can switch to high-income sugar beets
or other feed-stock.
The sister industries created by this process (distiller hot water for
greenhouse heating and feedstock for animal feed, for
example) improve the economies even more.
A sustainable fuel source that is grown, distilled, and consumed locally
will protect rural areas from the whims of those from other areas who
control their wealth
now.
Strategic Goal 3: Support Increased Economic Opportunities and Improved Quality
of Life in Rural America:
This project improves economic opportunities by
creating local jobs in farming, in fuel
production, and by distribution and spawning
other industries with its byproducts.
Energy independent communities will attract entrepreneurs, leading to
more jobs. Quality of life improves
when
because basic
energy needs are less expensive and immune to outside forces.
Strategic Goal 4: Enhance Protection and Safety of the Nation's Agriculture and
Food Supply:
A spinoff industry, greenhouse farming, produces safe, high-quality food that
insures availability and reduces the need to import potentially dangerous foods.
Strategic Goal 5: Improve the Nation's Health and Nutrition:
Greenhouse fruits and vegetables will be locally available year round.
When healthy, nutritious foods like this are available more months of the
year, they will be consumed more months of the year.
Money saved on energy and foods is freed up for health care.
Strategic Goal 6: Protect and Enhance the Nation's Natural Resource Base and
Environment:
This project requires the efficient use of farm land, makes fuel from renewable
resources, eliminates the need to transport fuel to this area, and is
carbon-neutral.
[1]
http://www.eia.doe.gov/oiaf/analysispaper/biomass.html
[2]
http://nsl.caltech.edu/files/ptp-mrs-bulletin-oct-2007.pdf
[3]
http://www.mda.state.mn.us/renewable/renewablefuels/balance.htm
[4] Nathan Lewis (2008); Chris Somerville (2009)
Ideas to add:
As the project matures, we intend to capture the
CO2 from the distillation and from the distiller.
No-till (strip tillage) minimizes carbon dioxide and methane release from the land. Less fuel is needed compared to a plowed field, which reduces the carbon emitted from the equipment.