Formula for Heavy Paraffinic Base Oil ?

In summary, "Heavy Paraffinic Base Oil" is a complex mixture of hydrocarbons with a high boiling point and a large number of carbon atoms per molecule. It is difficult to identify all of the compounds present and there is no specific formula for it. Motor oils are typically made up of these types of hydrocarbon mixtures.
  • #1
manhattan1nyc
Formula for "Heavy Paraffinic Base Oil"?

Is there a chemical formula for "Heavy Paraffinic Base Oil"? (like the base oil in motor oil) Or is it made up of other compounds and that's why I can't find a formula for it.? If so than I need to give a full description of the chemical with a formula so what would you use to fully describe in detail "Heavy Paraffinic Base Oil" if you can't use a formula? In other words how would someone know exactly which chemical you mean?

Thanks
 
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  • #2
You're talking about a "distillation cut," or boiling point range, C-H ratio (degree of saturation), and, maybe, melting point range. How many different compounds in the mix? Don't think anyone's ever tried for a "global" assay.
 
  • #3
A very large number of different hydrocarbons, most of which are chemically very similar; it's neither easy nor useful to identify them entirely. See for instance:

http://en.wikipedia.org/wiki/Oil_refinery

It looks like motor oils are mixtures of hydrocarbons boiling above 400C, usually having >20 carbon atoms per molecule.
 
  • #4
Just to give you an idea of the scale of things, if you only consider the alkanes with n=20 carbons, there are http://www.research.att.com/projects/OEIS?Anum=A000602 structural isomers! I'm not sure how many of these are actually present in crude oil, but I'm sure it's a very large number (especially after catalytic cracking.)
 
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Related to Formula for Heavy Paraffinic Base Oil ?

1. What is the formula for heavy paraffinic base oil?

The formula for heavy paraffinic base oil is typically a mixture of long-chain saturated hydrocarbons, with the general formula CnH2n+2, where n is a number typically between 20 and 100.

2. How is heavy paraffinic base oil produced?

Heavy paraffinic base oil is typically produced through a process called catalytic hydrocracking, which involves breaking down heavy petroleum fractions into smaller molecules using heat, pressure, and a catalyst.

3. What are the properties of heavy paraffinic base oil?

Heavy paraffinic base oil has a high viscosity, meaning it is thick and resistant to flow. It also has a high boiling point and low volatility, making it ideal for use in high-temperature applications.

4. What are the main uses of heavy paraffinic base oil?

Heavy paraffinic base oil is commonly used as a lubricant in industrial machinery, such as engines, gears, and hydraulics. It is also used in the production of other petroleum-based products, such as waxes and greases.

5. How does heavy paraffinic base oil compare to other types of base oils?

Compared to other types of base oils, heavy paraffinic base oil has a higher viscosity and better thermal stability, making it suitable for use in high-stress and high-temperature applications. However, it may not have the same level of solubility or compatibility with other substances as other base oils.

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