This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Complex mixtures of four types of hydrocarbons– Normal paraffins (Wax)– Isoparaffins (Branched liquid wax)– Naphthenes (Saturated ring structures)– Aromatics (Unsaturated ring structures)
Ratios of each structure affect the properties
Terms Viscosity – measure of oil’s flow characteristics Boiling range – lowest temperature at which a hydrocarbon will boil to
point at which it completely vaporizes Kauri-Butanol Value – measures solvency power Specific gravity – ratio of the weight of a given volume of product at
60°F to the weight of an equal volume of water at the same temperature
Flash point – minimum temperature at which sufficient vapor is present to ignite if an ignition source is present
Typical Carbon Number Distributions
Number of Carbon Atoms C3 C4 C5 C6 C7 C8 C9 C10 C11 C12Boiling Point of Normal Paraffin, °F -44 31 97 156 209 258 303 345 384 421Liquefied Petroleum GasVM&P NaphthaMineral SpiritsReformateGasoline
Typical Compositions of C3 to C12 Petroleum Products
Number of Carbon Atoms C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 >C21Boiling Point of Normal Paraffin, °F 303 348 384 421 456 488 519 548 575 601 625 649Kerosene, Diesel FuelAviation, Turbine FuelGas Oil, Fuel OilLubricating OilWax
Typical Compositions of C9 to C20 Petroleum Products
“LVP-VOC” means a chemical “compound” or “mixture” that contains at least one carbon atom and meets one of the following: (A) has a vapor pressure less than 0.1 mm Hg at 20°C, as determined by ARB Method 310; or (B) is a chemical “compound” with more than 12 carbon atoms, or a chemical “mixture” comprised solely of “compounds” with more than 12 carbon atoms, as verified by formulation data, and the vapor pressure and boiling point are unknown; or (C) is a chemical “compound” with a boiling point greater than 216°C, as determined by ARB Method 310; or (D) is the weight percent of a chemical “mixture” that boils above 216°C, as determined by ARB Method 310.
For the purposes of the definition of LVP-VOC, chemical “compound” means a molecule of definite chemical formula and isomeric structure, and chemical “mixture” means a substance comprised of two or more chemical “compounds.”