Biofuel and Hemp Info


The following article can be found in its entirety at this link.

Energy Farming in America

by Lynn Osburn

A practical answer to America’s farming, energy and environmental crises.

On June 12,1989, President Bush addressed his campaign promises to deal with the pollution problems long facing the United States.

He unveiled an ambitious plan to remove smog from California and the nation’s most populous cities, as well as efforts to reduce acid rain pollution. Bush recommended auto makers be required to make methanol-powered cars for use in nine urban areas plagued by air pollution. Methanol is the simplest form of primary alcohol and is commonly called wood alcohol.

About 6% of contiguous United States land area put into cultivation for biomass could supply all current demandsfor oil and gas without adding any net carbon dioxide to the atmosphere.

Bush called methanol “home-grown energy for America.” He further proposed a 10 million ton reduction in sulfur dioxide emissions from coal-burning power plants; that’s a 50% reduction over present standards. Sulfur dioxide is a major cause of acid rain, which kills 50,000 Americans and 5,000-10,000 Canadians yearly. (Brookhaven National Laboratory 1986)

William Reilly, chief of the Environmental Protection Agency, at a briefing before Bush’s speech, estimated the cost of the plan would be between S14 billion and $19 billion a year after its full implementation at the turn of the century. Bush said, “Too many Americans continue to breathe dirty air, and political paralysis has plagued further progress against air pollution. We’ve seen enough of this stalemate. It’s time to clear the air.” Political paralysis seems to be a dominant trait in Washington in any given decade, but what did he mean by “stalemate?”

The root of this “stalemate” can be found in the concept of world energy resources. The industrial world currently runs on fossil fuel: natural gas, oil, and coal. Fossil fuel resources are non-renewable, being the end product of eons of natural decomposition of Earth’s ancient biomass. Fossil fuels contain sulfur, which is the source of many of the aggravating environmental pollution problems threatening America.

Removing sulfur compounds from fossil fuels is a major expense to the energy producers. Also, burning fossil fuels releases “ancient” carbon dioxide, produced by primeval plant life eons ago, into the atmosphere causing the air we breathe to be over-burdened with CO2 increasing the danger of global warming and the greenhouse effect.

In the late 1800s, the fledgling petroleum industry aggressively competed with the established biomass-based energy industry in a effort to gain control of world energy production and distribution. Fossil fuel producers succeeded in their campaign to dominate energy production by making fuels and chemical feedstocks at lower prices than could be produced from biomass conversion. Now the pendulum is swinging against them.

It is likely that peak oil and gas production in the coterminous United States has been reached. The bulk total production of roughly 80% will be reached by the year 2000. Peak world production will occur about the same year.

The situation for recoverable coal, world wide, is more favorable. Peak production is estimated to happen shortly after the 2100. However, increasing numbers of Americans are unwilling to accept the escalating costs of environmental pollution and destruction associated with coal-fired power plant smokestack emissions and the land destruction resulting from coal mining.

As the energy crop grows it takes in CO2 from the air; when it is burned the CO2 is returned to the air, creating a balanced system.

If the pollution problems inherent with fossil fuel use are solved, the dollars and cents cost of this form of energy will continue to rise due to the dwindling availability of this non-renewable world resource. On the other hand, the dollar cost of energy production from biomass conversion will remain relatively constant because the world biomass resource is renewable on a yearly basis.

The point where the cost of producing energy from fossil fuels exceeds the cost of biomass fuels has been reached. With a few exceptions, energy from fossil fuels will cost the American taxpayer more money than the same amount of energy supplied through biomass conversion.

Biomass as the term used to describe all biologically produced matter. World production of biomass is estimated at 146 billion metric tons a year, mostly wild plant growth. Some farm crops and trees can produce up to 20 metric tons per acre of biomass a year. Types of algae and grasses may produce 50 metric tons per year.

Dried biomass has a heating value of 5000-8000 Btu/lb, with virtually no ash or sulfur produced during combustion. About 6% of contiguous United States land area put into cultivation for biomass could supply all current demands for oil and gas. And this production would not add any net carbon dioxide to the atmosphere. (Environmental Chemistry, Stanley E. Manahan, Willard Grant Press, 1984)

For its Mission Analysis study conducted for the U.S. Department of Energy in 1979, Stanford Research Institute (SRI) chose five types of biomass materials to investigate for energy conversion: woody plants, herbaceous plants (those that do not produce persistent woody material), aquatic plants, and manure. Herbaceous plants were divided into two categories: those with low moisture content and those with high moisture content.

Biomass conversion may be conducted on two broad pathways: chemical decomposition and biological digestion.

Thermochemical decomposition can be utilized for energy conversion of all five categories of biomass materials, but low moisture herbaceous (small grain field residues) and woody (wood industry wastes, and standing vegetation not suitable for lumber) are the most suitable.

Biological processes are essentially microbic digestion and fermentation. High moisture herbaceous plants (vegetables, sugar cane, sugar beet, corn, sorghum, cotton), marine crops and manure are most suitable for biological digestion.

Anaerobic digestion produces high and intermediate Btu gasses. High Btu gas is methane. Intermediate-Btu is methane mixed with carbon monoxide and carbon dioxide. Methane can be efficiently converted into methanol.

Fermentation produces ethyl and other alcohols, but this process is too costly in terms of cultivated land use and too inefficient in terms of alcohol production to feasibly supply enough fuel alcohol to power industrial society.

Pyrolysis is the thermochemical process that converts organic materials into usable fuels with high fuel-to-feed ratios, making it the most efficient process for biomass conversion, and the method most capable of competing and eventually replacing non-renewable fossil fuel resources.

The foundation on which this will be achieved is the emerging concept of “energy farming,” wherein farmers grow and harvest crops that are converted into fuels.

Methanol-powered automobiles and reduced emissions from coal-fired power plants can become a reality by using biomass derived fuels. The foundation upon which this will be achieved is the emerging concept of energy farming, wherein farmers grow and harvest crops that are converted into fuels. Energy farming can save American family farms and turn the American heartland into a prosperous source of clean renewable energy production.

Pyrolysis is the most efficient processfor biomass conversion into fuels that can replace all fossil fuel products… When farmers can grow hemp for biomass they will make a profit energy farming.

Universities, government agencies, and private firms have conducted studies looking into the feasibility of growing biomass at low cost to make fuels at affordable prices, but the most promising plant species was never considered because it is prohibited. Instead emphasis has centered around utilizing waste products: agricultural residues after harvest, forestry wastes from the timber and pulp wood industry, and municipal wastes. All of these combined cannot produce enough fuel to satisfy the needs of industry or the American consumer’s automobile. Yet biomass conversion to fuel has been proven economically feasible in laboratory tests and by continuous operation of pilot plants in field tests since 1973.

Farmers should be encouraged to grow energy crops capable of producing 10 tons per acre in 90-120 days. The crop has to be naturally high in cellulose. It must grow in all climactic zones in America. And it should not compete with food production for the most fertile land. It could be grown in rotation with food crops or on marginal land where other crop production isn’t profitable.

At congressional hearings on alternative fuels held in 1978, Dr. George T. Tsao, professor of chemical engineering and food and agricultural engineering, director of laboratory of renewable resources, Purdue University, said $30 per ton for biomass delivered to the fuel conversion plant is an adequate base price for the energy farmer. The price of $30/ton has also been suggested by other researchers.

Both Dr. Serge Gratch, director chemical sciences laboratory, Ford Motor Co. and Dr. Joseph M. Colucci, director fuels and lubricants General Motors Research Laboratories testified their companies were willing, especially Ford, to make cars that would run on methanol fuel. The scientists said it would take several years to tool up factories to make methanol powered autos. They said industry could solve the problems associated with methanol as fuel. And it would take about the same amount of time for the energy industry to build methanol production facilities.

So why don’t we have methanol at the filling station? The scientists said the problem was government certification under the Clean Air Act required automobile manufacturers meet standards set by the EPA based on fuels available on a national level. Since methanol fuel standards had not been set, the car makers couldn’t make the new fleet until the methanol fuel was available at the pump. This catch-22 situation continues today. Government is unwilling to subsidize pilot energy farms and biomass refinery construction because fossil fuel producers control the energy industry.

Hemp is the only biomass resource capable of making America energy independent. The government suspended marijuana prohibition during WWII. It’s time to do it again.

The way to end this political stalemate is to start literally from the ground up. When farmers can grow hemp for biomass they will make a profit energy farming. Then it will not take long to get 6% of continental American land mass into cultivation for biomass fuels — enough to replace our economy’s dependence on fossil fuels. And as the energy crop grows it takes in CO2 from the air; when it is burned the CO2 is returned to the air, creating a balanced system. We will no longer be increasing the CO2 content in the atmosphere. The threat of global greenhouse warming and adverse climatic change will diminish.

This energy crop can be harvested with equipment readily available. It can be “cubed” by modifying hay cubing equipment. This method condenses the bulk, reducing trucking costs from the field to the pyrolysis facility.

Sixty-eight percent of the energy in the raw biomass is contained in the charcoal and fuel oils made at the facility. The charcoal has the same heating value in Btu as coal, with virtually no sulfur to pollute the atmosphere. The pyrolytic fuel oil has similar properties to no. 2 and no. 6 fuel oil. The remaining energy is in noncondensible gases that are used to co-generate steam and electricity.

To keep costs down pyrolysis reactors need to be located within a 50 mile radius from the energy farms. This necessity will bring life back to our small towns by providing jobs locally. The pyrolysis facilities will run three shifts a day.

Charcoal and fuel oil can be “exported” from the rural small town in the agricultural community to the large metropolitan areas to fuel the giant power plants generating electricity. When these utility companies use charcoal instead of coal, the problems of acid rain will begin to disappear.”

to view the article in its entirety, follow this link.

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One Response to Biofuel and Hemp Info

  1. Don Hennick says:

    Lets give it a name
    I say Global Carbon March
    Inter our exhaust

    I don’t see any mention on your web site of Pyrolysis or Agrichar . Do you have projects in the planning stage on the carbon sequestration front?

    The more you learn about this ancient technique of soil restoration the more you’ll see how elegant this solution can be for carbon sequestration, for us all.
    Imagine putting the carbon tax funds into the hands of millions of peasant farmers all around the world, building their soil and their net worth at the same time they sequester our carbon. Please search “AGRICHAR” “BIOCHAR” or
    “TERRA PRETA”

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