Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/2679
Title: Automotive fuels at low temperatures
Authors: Diemand, D. (Deborah)
Keywords: Fuel
Gasoline
Vehicles
Motor fuels
Diesel fuels
Low temperature
Low temperature effects
Issue Date: Mar-1991
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Cold regions technical digest ; 91-2.
Description: Cold Regions Technical Digest
Introduction: Problems with fuels at extremely low temperatures are largely due to wax formation, increased viscosity, decreased volatility and contamination by water. This is especially true of diesel fuels, but even gasoline suffers from these problems to some extent. Some difficulties may begin to appear at temperatures above 0°C. The overwhelming majority of fuels are derived from petroleum crude oils. Straight-run fuels are produced through primary distillation of these crude oils. In addition, secondary processing of the crude produces further fuel stocks from other fractions that could not otherwise be used as fuel. Cracking reduces large molecules into smaller fragments, which may be used in the lighter fuels such as gasoline; alkylation produces larger molecules from light gases or from the lighter products of the cracking process; polymerization is similar to alkylation but results in products with a lower octane rating; reforming catalytically alters certain low-octane substances, resulting in a high-octane product.
URI: http://hdl.handle.net/11681/2679
Appears in Collections:Cold Regions Technical Digest

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