Biodiesel is a renewable fuel produced from animal and vegetable fats that can be used in diesel engines with little or no modification. Biodiesel is typically blended with petroleum diesel in formulations referred to as B2 (two percent biodiesel, 98 percent petroleum diesel), B5 (5 percent and 95 percent), B20 (20 percent and 80 percent), etc. Though biodiesel is most commonly used in these kinds of blends, it can also be used in its pure form (B100). Biodiesel can be used in virtually any diesel engine without modification. It can be used in its pure form (called B100) or as a blend with diesel fuel at any ratio. The most commonly used form of biodiesel is a 20% blend of biodiesel with 80% petroleum diesel, known as B20. This has become a common practice as a balancing of benefits with costs, cold weather and solvency considerations associated with biodiesel. More on these below.) Biodiesel provides similar horsepower and fuel economy as petroleum diesel with superior lubricity to reduce wear and tear on the engine.

Biodiesel runs in any unmodified diesel engine. There is no engine conversion typical of other alternative fuels. The diesel engine can run on biodiesel because it operates on the principle of compression ignition whereby air is compressed and then fuel is sprayed into the ultra-hot, ultra-pressured combustion chamber. Unlike gasoline engines, which use a spark to ignite the fuel/air mixture, diesel engines actually use fuel to ignite hot air. This simple process allows the diesel engine to run on thick fuels. Since biodiesel is chemically similar to petroleum diesel fuel, you can pour biodiesel right into the fuel tank of any diesel vehicle. Biodiesel has many advantages as a transport fuel. Biodiesel has lower emissions, it is made domestically (which increases national security), it does not affect engine performance and biodiesel is produced from plants.

Biodiesel is registered as a fuel and fuel additive with the Environmental Protection Agency. The Departments of Transportation and Energy recognize biodiesel as an alternative fuel. An ASTM standard, D6751, has been developed to ensure biodiesel quality. Diesel vehicles has driving more than fifty million miles on biodiesel fuel in the United States, even more in Europe.

Biodiesel is an alternative fuel made from vegetable oil (or animal fat) that can be used in any diesel engine without any modifications. Biodiesel is the only alternative fuel currently available that has an overall positive life cycle energy balance (3.2:1, compared to a paltry .86:1 of diesel). It is renewable, sustainable, domestically produced, and Oil Regime free.

Biodiesel is an alternative fuel that is relatively safe and easy to process when conscientiously approached. Made from vegetable oil (or animal fat) that can be used in any diesel engine without any modifications. Biodiesel is the only alternative fuel currently available that has an overall positive life cycle energy balance (3.2:1, compared to a paltry .86:1 of diesel). Making home-brew style biodiesel begins with the collection of waste restaurant grease that local restaurant owners are generally eager to part with. After collection–which is a greasy, grimy job to say the least–the oil is heated in an appropriate reactor vessel.

Once the oil has reached 120-130 F, it must be filtered to remove any food particles in suspension (french fries, tofu bits, chicken wings, tempeh chunks, et al). Methanol and sodium hydroxide (~20% methanol/volume of oil, and anywhere from 3.5 to 9 grams/liter of oil depending on the quality of oil) are then mixed in a separate vessel and then added to the heated oil once a homogenous solution is obtained. The oil/methanol/lye mixture is then agitated for ~1 hour and allowed to settle overnight. The final step is to run the Biodiesel through a fuel filter to remove any debris that might have made it this far. You are now ready to use the fuel in your diesel car. The glycerin should be allowed to sit for a few days to remove the excess methanol, then it can be used as soap, or it can be mixed with sawdust and composted.

Renewable fuels are alternative fuel sources such as ethanol, biodiesel (e.g. Renewable fuels have become particularly newsworthy with the signing of the Energy Bill, which expanded the current use of renewable fuels in the United
States. Founded in 2004, Altra is led by seasoned business leaders and veterans of the biofuels and energy industries. Altra acquires, develops and operates a portfolio of renewable energy projects throughout the United States. Altra is specifically focused on the production and sale of ethanol and biodiesel fuels that can help meet the world’s growing energy demands as it faces shrinking petroleum supplies that come from unstable regions of the globe. Political instability and increased world petroleum consumption have caused a corresponding rapid growth in the global demand for alternative and renewable fuels, which Altra believes will ultimately and permanently alter the dynamics of world energy markets.

With the biofuel industry growing faster than 20% per year for the past five years, renewable fuels are increasingly cost competitive with fossil fuels and are viewed as a necessary alternative as conventional fuel additives such as MTBE are phased out for environmental reasons. In the summer of 2005, as oil prices crossed the of $60+ per barrel mark, the U.S. Congress passed a sweeping Energy Bill that provided sizeable mandates to adopt renewable fuels.

According to the Environmental Protection Agencys new Renewable Fuel Standard, renewable fuels are defined as motor vehicle fuels produced from plant or animal products or wastes. Within this definition, two distinct forms of diesel fuel are specified: biodiesel and renewable diesel. Each is defined according to the process by which it is produced. The term “biodiesel” is often used very broadly to refer to any blend of conventional petroleum diesel with any renewable diesel product. In order to avoid confusion, the term biodiesel should be used in reference to pure biodiesel fuel meeting the ASTM D6571 standard.

This hearing on renewable fuels is the first in a series on small business participation in the energy industry. In the coming weeks, the committee will examine broader renewable energy issues, as well as legislation impacting small business energy needs.

Advances in technologies and scale, along with global environmental and economic concerns, have spurred the development and market viability of a number of renewable energy power generation technologies. The types of technologies that have reached a stage of marketability range from power plants fueled by geothermal energy and biomass, to wind farms of massive structures, to large photovoltaic arrays, and anaerobic digesters for on-site and regional biogas-fueled generators. Renewable energy is broadly defined as power derived from resources that are constantly replaced and are usually less polluting, such as the sun and wind and water movement but also using algae in a proces of making biodiesel from algae. These resources, requiring different technologies to harness them, are then converted into heat, electricity and mechanical energy.

Advocates of renewable energy argue that the demand for renewables would rise if conventionally generated electricity were priced to reflect its pollution costs. But a reasonable interpretation of the evidence suggests that the additional cost of further pollution reduction would exceed the additional health benefits. Even if current regulatory costs are insufficiently reflective of true environmental costs, “getting prices right” will not significantly affect consumer choices of fuel. For example, reducing emissions of nitrogen oxides and sulfur dioxide by 75 percent below 1997 levels would increase electricity prices by only about 1 percent, too little to trigger a shift from coal or natural gas to renewable energy.
Renewable energy is naturally intermittent. Hydrogen provides a means to store renewable energy for times when the sun doesn’t shine or the wind doesn’t blow. When these resources are available, they can be used to generate electric power for immediate use, with surplus energy being converted to hydrogen using an electrolyzer. The hydrogen is stored until renewable energy is unavailable, at night or on cloudy or windless days. A fuel cell then converts the stored hydrogen to electric energy. To learn more about the connection between renewable energy and hydrogen and fuel cells go to the solar hydrogen cycle web page.

The 2007 Renewables Global Status Report concludes that current trends are set to continue as the costs of renewable energy technologies decline and the sector continues to diversify production and technology development to a broad base of countries, including emerging economies. With more than 2.5 million jobs in the renewable energy industry, and strong rural development benefits, renewable energy is an avenue to economic development, energy security, local environmental benefits, and climate change mitigation.

Biodiesel Production: Energy Balance
There is a growing demand for biodiesel in the markets of USA and Europe Biodiesel Economics. Countries like Malaysia are growing oil palm to source the production of biodiesel for exporting to the developed countries. Biodiesel from palm oil is far less costly than from rapeseed oil. The energy of biodiesel is derived from the solar energy trapped by the plants during the process of photosynthesis. Biodiesel has positive energy balance.

For production of one unit of this fuel, the ratio between yield and cost is 3.71 units. That means one unit of energy input for producing biodiesel yields an output of 3.71 units. Biodiesel has therefore been increasingly produced both in small domestic scale as well as large commercial scale.

To make your own bio diesel, you need vegetable oil, alcohol, and lye. By mixing alcohol and lye, sodium methoxide is created. This concoction is then mixed with vegetable oil to create biodiesel and the by product of glycerin. The two are separated and the biodiesel is ready to be added to your gas tank. Making biodiesel really is that simple. If you are squeamish about making fuel in a blender, you can purchase a biodiesel kit that contains all of the tools you need to make your own fuel. If you are going to utilize biodiesel blended fuel in any vehicle or stationary engine make certain you get a position letter/statement from the manufacturer of the engine. You will find that most engine manufacturers will not accept any liability for the quality of the fuel and if it does damage they will not repair at their expense but yours!

In a nutshell, the process to make your own bio diesel consists of mixing lye and methanol (or ethanol) together and stirring them into the oil. After several hours glycerin (soap) molecules settle to the bottom, and the biodiesel can be siphoned off the top and put into any diesel tank.

Biodiesel is inherently more environmentally friendly than petroleum-based fuels because of its CO2 cycle. It can theoretically be carbon neutral. This is because the oil producing plants take carbon from the atmosphere to produce the oil that is used to make biodiesel, rather than taking petroleum that has been locked up. This is reduced if petroleum fuel is used to transport the biodiesel or any of the components used to make it. As with all biofuels, you should consider the source of the feedstock. It goes against the environmental benefits of using biodiesel if someone cut down rain forest to plant oil producing crops to make biodiesel it is a fair question to ask your suppliers. Biodiesel is obviously also more sustainable because it is made from a renewable resource (plants) while petroleum is a non-renewable, finite resource.

If you want to make your own biodiesel we can recommend this biodiesel ebook

Iowa currently has eight biodiesel refineries in operation with an annual production capacity of nearly 115 million gallons. In addition, there are six new plants and one major expansion under construction that will add over 200 million gallons of annual capacity. Several more projects are under development. The Iowa Renewable Fuels Association was formed in 2002 to represent the state’s ethanol and biodiesel producers. The trade group fosters the development and growth of the renewable fuels industry in Iowa through education, promotion, legislation and infrastructure development. The Iowa Renewable Fuels Association is working to correct myths and unscientific attacks on the renewable fuels industry. This compilation of issues, responses and resources was put together to aid the public in separating fact from fiction.

The Iowa Renewable Fuels Association (IRFA) today announced that Iowa biodiesel refineries will produce a record 60 million gallons in 2006. This production represents a 240% increase over the 25 million gallons produced by Iowa biodiesel refineries in 2005. In producing the record amount of biodiesel, Iowa’s biodiesel refineries processed the oil from over 40 million bushels soybeans. According to a release from the Iowa Soybean Association, Iowa has 14 biodiesel plants with total production capacity of 317.5 million gallons of biodiesel annually. Two additional plants are under construction in Iowa which will have the combined capacity to produce an additional 35 million gallons. Biodiesel production and demand is growing exponentially and Iowa is leading the way according to Monte Shaw, IRFA Executive Director. Consider that last year the entire country produced only 75 million gallons of biodiesel and this year U.S. biodiesel production is estimated between 200 and 250 million gallons. Iowa farmers and entrepreneurs are leading the way in production and quality.

Biodiesel is made by chemically reacting vegetable oil or animal fat (or combinations of oils and fats) with alcohol (usually nearly pure methanol or 200 proof ethanol) and a catalyst (sodium hydroxide, or lye). The oil is chemically acidic; the alcohol is chemically a base. This chemical reaction breaks the fat molecules in the oils into an ester, which is the biodiesel fuel, and glycerol. This reaction is called transesterification. Since the biodiesel is less dense than the glycerol, it floats on top of the glycerol and may be pumped off, or the glycerol can be drained off the bottom. The fuel can then be filtered and used in heating or lighting applications. Some people use it in diesel engines without further processing, but others recommend removing impurities (soap, un-reacted alcohol, and sodium hydroxide) by a washing process.

Waste Vegetable Oil (WVO) is vegetable oil that has become unfit for food preparation. The common causes of this degradation are: Chemical degradation, including oxidation. Its uses include: Animal feed additive. Fuel for waste-to-energy plants. Use as a biofuel, especially: As feedstock for the production of biodiesel by transesterification. But it was the waste vegetable oil (WVO) that MVNU”s Pioneer College Caterers paid a fee to get rid of each month that got him excited. Could the University somehow transform that to power maintenance equipment or even buses? That’s when he found two resources that made the idea a reality a company and a champion.

Biodiesel turbine fuel and kerosene is a topic that is causing many ambiguities in the minds of people. The question is Is it possible to make a biodiesel and kerosene blend or replace the kerosene entirely?

So far we talk about diesel aircraft engines, this fuel goes very well since it is incredibly similar to diesel and so the aircraft is not able experience any difference. However, being credited with a high stability rate, it is not used in the huge aircrafts such as 747s. Therefore it is obvious fact that will not use biodiesel as a source of fuel any time soon for commercial flights.

The Kerosene as a fuel source is some lighter than diesel but on the other hand it is heavier than gasoline as well. It is possible that a kerosene mix may have biodiesel element. In the near future it may happen that airlines could charge a little more for flights using this fuel mix on the environment friendliness aspects.
On one side where use of bio fuel in aircrafts would lessen the amounts of fatal CO2 emissions, it would also imply that some of our agricultural resources would have to be dedicated. Having said that, although there are some disadvantages but the advantages are more in comparison when it comes to being friendly to the environment for the use of biodiesel in the turbine fuel kerosene.

Madison Area Technical College dedicated its new biodiesel reactor, built in partnership with the University of Wisconsin-Madison to produce motor fuel blended from waste vegetable oil and methanol. The reactor will be used to educate MATC students in the production, use and quality control of biodiesel fuels and the maintenance of biodiesel-fueled engines and vehicles. At a news conference and dedication ceremony at MATC’s Truax location in Madison, students and faculty from the two colleges demonstrated how the reactor purifies cooking oil recovered from a restaurant’s deep fryer and blends it into a fuel that can operate a diesel-powered vehicle without engine modifications. A semi truck running on biodiesel fuel was then driven through a ceremonial banner, officially dedicating the reactor. UW-Madison engineering students designed and built the laboratory-scale reactor at the request of MATC”s Diesel Equipment Technology associate degree program. The goal is for students to synthesize and study various biodiesel fuel blends, stated project director Ken Walz, an MATC chemistry instructor. ldquo;The reactor will allow students to experiment with different feedstocks, catalysts, and processing temperatures to optimize biodiesel production.

In a professional biodiesel plant, NM30 catalyst (or methoxide), methyl alcohol and oil are pumped through a heat exchanger using three continuous dosage pumps, the mixture is heated to 75′C in a pressurized ultrasonic reactor at 200kPa. With a flow rate of 200l/hr the biodiesel mixture resides 15 minutes in a 50l tank after which it is released in a pressureless evaporation container where it flashes in methanol vapour and transesterified but not yet separated methylester and glycerol liquid. This mixture is then being separated using a high speed separator, after which the glycerine is neutralized and the biodiesel purified in a double Polarix resin tube. The evaporated methanol is guided back into the methanol tank.

The lower layer of the process is composed primarily of glycerine and other waste products. The top layer, a mixture of biodiesel and alcohol, is decanted. The excess alcohol can be distilled off, or it can be extracted with water. If the latter, the biodiesel should be dried by distillation or with a drying agent.