Biofuel- Biodiesel Feedstock and Process


Biodiesel Is Made From Biomass
Unlike other renewable energy sources, biomass can be converted directly into liquid fuels, called “biofuels,” to help meet transportation fuel needs. The two most common types of biofuels in use today are ethanol and biodiesel, both of which represent the first generation of biofuel technology…>>

made from continued- Biodiesel is an alternative fuel similar to conventional or ‘fossil’ diesel. Biodiesel can be produced from straight vegetable oil, animal oil/fats, tallow and waste cooking oil. The process used to convert these oils to Biodiesel is called transesterification.
After the cost of converting it to biodiesel has been added on it is simply too expensive to compete with fossil diesel…>>

made from continued- Made from an increasingly diverse mix of resources such as recycled cooking oil, soybean oil and animal fats, biodiesel is a renewable, clean-burning diesel replacement that can be used in existing diesel engines without modification. It is the nation’s first domestically produced, commercially available advanced biofuel…>>

Biodiesel Production Process
The process: Biodiesel is an alternative fuel for diesel engines that is produced by chemically reacting a vegetable oil or animal fat with an alcohol such as methanol or ethanol.
Almost all biodiesel is produced using base catalyzed transesterification as it is the most economical process requiring only low temperatures and pressures and producing a 98% conversion yield.
The transesterification of vegetable oils, animal fats or waste cooking oils is the process behind conventional biodiesel. In the transesterification process a glyceride reacts with an alcohol (typically methanol or ethanol) in the presence of a catalyst forming fatty acid alkyl esters and an alcohol.

Transesterification Process
Transesterification: This is a long name for a simple process of combining a chemical compound called an “ester” and an alcohol to make another ester and another alcohol. Oils and fats are included in the ester family. When they react with…>>

The transesterification process is a reversible reaction and carried out by mixing the reactants – fatty acids, alcohol and catalyst. A strong base or a strong acid can be used as a catalyst. At the industrial scale, mostly…>>

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Biodiesel Feedstocks (most commonly used)

Oilseed Crops for Biodiesel Production
Biodiesel can be produced from a wide variety of oilseed crops and animal fats.

In Europe, rapeseed oil is the major biodiesel feedstock.
* Rapeseed and canola produce about 75 to 240 gallons of oil per acre.         about rapeseed>>

In the United States, soybeans are the dominant biodiesel feedstock.
* Soybeans produce approximately 1.5 gallons of oil per bushel.
about soybean>>

about other commonly used crops>>-  Mustard, Camelina, Castor Bean, Safflower and Sunflower, Warm Climate Feedstocks, Jatropha, and Potential Oilseed Crops  (Pennycress, Lesquerella and Hazelnut who’s potential of 90 gallon per acre could have real value)

Other Types of Feedstocks
Waste oil and grease can be collected from restaurants to produce biodiesel. While the processing costs of this urban source are higher per gallon than the processing costs of virgin vegetable oil, the cost of the feedstock is generally low and sometimes free.

What Happened to Algae?
Microalgae have long been recognized as potentially good sources for biofuel production because of their relatively high oil content and rapid biomass production. There are production challenges which need to be overcome for successful commercialization.  about Algae>>