Biodiesel from Flax Oil – Flaxseed Oil as Biofuel

The oil from linseed/flax plant can also be considered for biodiesel. Research is ongoing in this area. 

• Synthesis of Biodiesel from Castor Oil and Linseed Oil in Supercritical Fluids - Varma, Mahesh N and Madras, Giridhar (2006) Synthesis of Biodiesel from Castor Oil and Linseed Oil in Supercritical Fluids. Industrial and Engineering Chemistry Research. Abstract - Biodiesel synthesis (transesterification of triglycerides of higher fatty acid to methyl and ethyl esters) from castor oil and linseed oil using methanol and Ethanol was investigated at subcritical and supercritical conditions of methanol and ethanol from 200°C to 350°C at 200 bar. The effect of molar ratio of alcohol to oil, temperature, and time was investigated in supercritical methanol and ethanol. The kinetics of the reaction was first order,and the activation energies were determined from the temperature dependence of the rate coefficients. Biodiesel was also synthesized enzymatically with Novozym 435 in supercritical carbon dioxide . The effect of various parameters such as enzyme loading, alcohol to oil molar ratio, temperature, and time was investigated in these systems. A simplified model, based on the Ping Pong Bi Bi with competitive inhibition mechanism,was proposed to describe the enzymatic Transesterification kinetics for castor oil with methanol and ethanol. Read more about accessing the full report from here

 Content derived from Wikipedia article on Linseed Oil

 Linseed oil - From Wikipedia, the free encyclopedia

Linseed oil is a yellowish drying oil derived from the dried ripe seeds of the flax plant (Linum usitatissimum, Linaceae). It is obtained by pressing, followed by an optional stage of solvent extraction. Cold-pressed oil obtained without solvent extraction is marketed as flaxseed oil.

Contents

1 Uses

1.1 Nutritional supplement

1.2 Paint binder

1.3 Wood finish

1.4 Additional uses

2 Boiled linseed oil

3 Spontaneous combustion

4 Nutrient content

5 References

Uses

Nutritional supplement

Linseed oil is suitable for human consumption, if it is very fresh, refrigerated and unprocessed, and is used as a nutritional supplement. It is rich in Omega-3 Fatty Acids especially alpha-linolenic acid, which appears to be beneficial for preventing heart disease, inflammatory bowel disease, arthritis and a variety of other health conditions. Flaxseed also contains a group of chemicals called lignans that may play a role in the prevention of cancer.

 Paint binder

Linseed oil is the most commonly used carrier in oil paint. It can also be used as a painting medium, making oil paints more fluid, transparent and glossy. It is available in varieties such as Cold Pressed, alkali refined, sun Bleached, sun thickened, and polymerised (stand oil).

Wood finish

When used as a wood finish, linseed oil does not cover the surface as varnish does, but soaks into the (visible and microscopic) pores, leaving a shiny but not glossy surface that shows off the grain. Wood treated with linseed oil not only is resistant to denting, and scratches are easily repaired, but the wood and oil surface is not as hard as a modern varnish, and it slowly absorbs moisture if allowed to stay wet. Soft wood benefits from the protection from denting but requires more applications and even more drying time than harder wood does, if the grain is to be completely filled. The oil penetrates deeply and fills the grain, because it dries slowly and shrinks little or not at all on hardening. It is a traditional finish for gun stocks, however a very fine finish may require months to obtain. Oiled wood is yellowish and darkens with age.

 Additional uses

Animal feeds

Putty

Sealants

Caulking compounds

Brake linings

Linoleum

Earthen floors

Adobe

Textiles

Bicycle maintenance as a thread fixative, rust inhibitor and lubricant

Foundry products

Leather treatment

Polishes, varnishes and oil paints

Animal care products

Wood preservation

Synthetic resins

Treatment for the raw willow wood used to make cricket bats. Linseed oil has a special cultural place in cricket-playing countries.

Boiled linseed oil

Boiled linseed oil is used as a paint binder or as a wood finish on its own. Heating the oil makes it polymerize and oxidize, effectively making it thicker and shortening the drying time. Today most products labeled as "boiled linseed oil" are a combination of raw linseed oil, petroleum-based solvent and metallic dryers. The use of metallic dryers makes boiled linseed oil inedible. There are some products available that contain only heat-treated linseed oil, without exposure to oxygen. Heat treated linseed oil is thicker and dries very slowly. These are usually labeled as "polymerized" or "stand" oils, though some may still be labeled as boiled.

Spontaneous combustion

Rags dampened with boiled linseed oil are a fire hazard, because they provide a large surface area for oxidation of the oil. The oxidation is an exothermic reaction which accelerates as the rags get hotter. Such rags should be washed, soaked with water or incinerated to avoid unexpected spontaneous combustion.

Nutrient content

Nutrition information from a typical commercially available flaxseed oil:[citation needed]

Per 1 Tbsp (14 g)

Calories: 130

Calories from fat:130

Total fat: 14g

Omega-3: 8g

Omega-6: 2g

Omega-9: 3g

References

^ Flaxseed Oil. University of Maryland Medical Center (April 2002). Retrieved on 2006-11-12.

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This page uses material from the Wikipedia article Linseed oil

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