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Biodiesel Centrifuge
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 55 GPH CENTRIFUGE w/BRASS, GAUGE and BRACKET for WVO /OIL and BIODIESEL  US $179.99
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 65 GPH CENTRIFUGE for WVO / OIL and BIODIESEL US $154.99
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 60 GPH CENTRIFUGE for WVO/ BIODIESEL US $120.00
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 1/3 HP MOTOR AND PUMP FOR WVO / BIODIESEL CENTRIFUGE US $359.00
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 1/2 HP Oberdorfer Pump for WVO/Biodiesel Centrifuge US $489.99
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 108 GPH CENTRIFUGE for WVO / OIL and BIODIESEL US $339.99
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 65 GPH CENTRIFUGE w/BRASS and GAUGE for WVO /OIL and BIODIESEL US $189.99
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 BioDiesel WVO WMO SVO Centrifuge US $1,197.00
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 BioDiesel WVO WMO SVO Centrifuge US $1,695.00
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 Oil Centrifuge 550 LPH WVO Biodiesel - 500cc - large model FREE Glycerin gauge US $308.24
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While awareness of biodiesel and running diesel engines on vegetable oil is growing, you still have to get the oil from somewhere. The conventional choice is to buy vegetable oil, or take used vegetable oil from a restaurant. However, there is another possibility: Produce your own oil, with algae.
Algae
Algae are a form of "simple," photosynthetic, and aquatic organisms. The most complex forms of algae are commonly called "seaweed," though algae range in size and complexity from unicellular forms to this more advanced form. They are called "simple" because they lack many complex features found in land plants. The most useful feature of algae for our purposes is that algae produce significant quantities of natural oils. In fact, there are estimates that the yield from algae can be 200 times greater than that from a comparable area of other sources of conventional vegetable oils.
Algal Oils
Oil from algae is quite similar to oils produced by conventional oil crops and oilseeds. Chemists generally do not speak of oil, which is a common word for a vaguely defined group of chemicals. Biological "oils," or lipids, are chemicals called triglycerides, composed of a central glycerol unit with three fatty acids attached. Chemically, biological lipids are similar to petroleum to the extent that both groups of chemicals are based on carbon and hydrogen.
The main problem with using biological lipids as fuels is the fact that lipids are much more viscous (or resistant to "flowing," in layman's terms) than the refined petrochemicals which make up gasoline, diesel fuel, kerosene, and other petroleum-based fuels. As a result, unrefined lipids will not be completely burned off in an engine, and leftover product which did not burn can accumulate in the engine.
Biodiesel from Algae Oil
The process of making biodiesel from oil is all about lowering the viscosity of oil by removing the glycerol; the process of converting algal oils is the same as that with any conventional vegetable oils. Chemists refer to this process as "transesterification," which in the case of biodiesel means splitting the triglycerides, separating the glycerol, which will settle, and converting the fatty acids into a solution of methyl esters, called biodiesel. This is done by mixing the biological oil with sodium methoxide.
Cultivating Algae
Algae can be cultivated at home using a device known as a "photobioreactor," or a bioreactor which includes a source of light. A basic reactor can be made from clear plastic tubes or plastic bottles or a plastic container of some sort. Algae need water, carbon dioxide, and light to grow; the reactor will contain water into which has been placed a culture of algae. Depending on the type of reactor chosen, algae can be cultivated continuously or in batches. The light source can be an LED, a phosphorescent bulb, or natural sunlight.
Getting Oil from the Algae
The making of biodiesel involves a number of separation processes, even more so in the case of biodiesel from algae: separating the algae from the solution, separating the oil from the algae, and separating the glycerol from the biodiesel after the reaction is complete. All of these separation processes can be done simply with a centrifuge.
Conclusions
While even biodiesel isn't quite a free lunch, getting biodiesel from algae can bring you one step closer. The product you get from algae-produced biodiesel is equivalent to that you get from other oils and the conversion of algal oil is the same as the conversion of any other oil; the algae are simply a renewable source of oil. Algae are quite safe, being commonly used in commercial products including food.
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How to Go About Biodiesel Production
Biodiesel production is a process of synthesizing biodiesel, it is a liquid fuel source highly compatible with petroleum based diesel fuel. Synthesis is method which is used by manufacturer, in which reaction of a glyceride containing plant with short chain alcohol like methanol or ethanol in a step called as transesterification.
The reaction which occur during this process is below,
Animal and plant fats and oil are made up of triglycerides. There are esters of free fatty acids with tryholic alcohol, glycerol. Here the alcohol is deprotonated with a base to make it stronger nucleophile. Generally in esterfication ethanol or methanol is used. From reaction one can easily find out there us no other input than the triglyceride and alcohol.
This reaction occurs very slowly or may not occur. Acid or base are used to make the reaction more quickly, also can used heat. It is very much important to not that acid or base should not be consumed by esterification reaction. Base catalyzed technique is used for most economical process which requires low temperatures and pressures. It produces more than 98% conversions yield.
Processing Steps
Purification:
If you are using waste vegetable oil, it should be filtered and remove dirt, charred food and other non oil material often food.
Water used to be removed from process because its presence causes the triglycerides to hydorlyze which gives to salts of the fatty acids. It is accomplished by heating the filtered oil approximately 120C. At this temperature any suspended water get boil off. When water gets boils, it used to spitters, so to prevent injury to container, there should be sufficiently large container, they should be closed but not sealed. In laboratory to remove water, they used drying agent like magnesium sulfate.
Neutralization of Fatty acids:
Titration of cleaned oil with standard solution of base which used to make for determines the concentration of free fatty acids (RCOOH) which is present in waste vegetable oil. Base quantity is measure which is required to neutralize the acid.
Transesterfication:
The measured quantity of base used to added slowly to the alcohol. It is then stirred until till it get dissolves. Three full equal size triglyceride are made by adding sufficient alcohol. Excess alcohol is added to complete the reaction.
The solution of sodium hydroxide is being added to a warm solution of waste oil, then the mixture is heated to process transesterification.
Workup:
After completion of reaction glycerol get sink. Emulsion used to occur when ethanol being used. It is being broken by standing, centrifugation, also by addition of low boiling, decanting, distilling. Then the top layer mixture of biodiesel and alcohol is decanted, where the excess of alcohol is distilled off or it is used to extracted through water. Biodiesel should be dried by distillation. It can also be done with the help of drying agent.
Benefits of Process
It is continuous process
It's FAME=98.59 before washing process
It's FAME=99.85 after washing process
It reduces space requirement
It is very low in process inventory
It require minimum manpower
Oils and fats can be produced
Reactors from 1GPM up to 500GPM are available
This process is successful for even poor quality of crude oil.
About the Author
Muna wa Wanjiru Has Been Researching and Reporting on Biodiesel for Years. For More Information on Biodiesel Production, Visit His Site at BIODIESEL PRODUCTION
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