By Lou Honary
As a result of upward push in petroleum costs in addition to expanding environmental matters, there's a have to advance biochemicals and bioproducts that supply practical choices to their conventional opposite numbers; this ebook will tackle the inability of a centralized source of data on lubricants and greases from renewable resources, and may be important to a large viewers in and academia. it truly is in response to twenty years of study and improvement on the UNI-NABL middle, and discusses some of the forms of vegetable oils to be had, evaluating their features, homes and merits opposed to these of average petroleum oils in addition to discussing universal evaluate assessments and giving examples and case experiences of winning purposes of biobased lubricants and greases. while medical and engineering learn information is incorporated, the e-book is written in an available demeanour and is illustrated all through. makes a speciality of an business program of lubrication expertise present process present explosive progress within the international market.Includes a close overview of the fabric advantages of plant-based lubricants that come with a greater viscosity index and lubricity even at severe temperatures, decrease flammability because of larger flash issues and reduce pour points.Covers the fundamental chemistry of vegetable oils in addition to their profiles to be used in lubricants and greases and environmental benefits.Includes examples and case reviews of the place vegetable-based lubricants were effectively hired in functions.
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Additional info for Biobased Lubricants and Greases: Technology and Products (Tribology in Practice Series)
These are referred to as carbon isotopes and are designated C12, C13, and C14. Carbon-14 (C14) is radioactive and is used in radiocarbon dating. Carbon-14 is more concentrated in oilseeds than it is in petroleum. This fact can be useful in determining whether a given fuel or lubricant is biobased. Determination of biobased content for the USDA labeling program is based on the amount of C-14 (carbon Biobased Lubricants and Greases: Technology and Products, First Edition. T. Honary and Erwin Richter © 2011 John Wiley & Sons, Ltd.
The longer the chain, the higher the viscosity and melting or boiling point. For example, methane (one carbon atom) boils at À164 C (À295 F), octane (eight carbon atom chain) boils at 125 C (237 F). Therefore, methane is a gas at room temperature and octane is a liquid at room temperature. Plant oils have another factor that enters into the viscosity and melting point of the oil. That factor is the presence of one or more double bonds between carbon atoms making up the carbon atom chain of the oil.
Some heavy crude could contain over 70% bitumen. These oils are suitable for heavier petroleum derivatives like base oils for lubricants. Light crude, on the other hand is refined for gasoline and other fuels. Crude oils from the Middle East are usually light crude; while crude oils from other parts of the world including continental Europe and Asia, North and South Americas, and the North Sea are heavy crude. This heavy/light classification is based on the composition and density. In addition to this classification, base oils are also divided into paraffinic and naphthenic.