Increasing the responsiveness of No. 2-D diesel fuels to flow improvers by blending with low wax diluents

Book · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5761387

Reddy, S R

Low temerature operation of diesel vehicles can be improved either by diluting the fuel with low-wax diluents or by treating the fuel with flow improvers. The objective of this study was to determine the effect of the combined use of flow improvers and diluents. Laboratory experiments were conducted using three low-wax diluents - a No. 1-D diesel fuel, a tar sands-derived fuel, and an unleaded gasoline - in various No. 2-D diesel fuels. All three diluents increased the responsiveness of the No. 2-D fuels to flow improver treatment, and the combined use of diluents and flow improvers synergistically reduced the filter plugging temperature. For example, these reductions ranged from 6 to 13/sup 0/C for fuels containing 25% No. 1-D fuel and a flow improver, whereas the use of flow improver alone was ineffective in most of the fuels, and dilution alone caused reductions of only 3 to 5/sup 0/C. Vehicle tests confirmed the synergistic effect of dilution and flow improver use.

• Research Organization: G.M. Res. Labs.
• OSTI ID: 5761387
• Report Number(s): SAE-TP-841351
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
ADDITIVES
COMPARATIVE EVALUATIONS
CONTROL
DIESEL ENGINES
DIESEL FUELS
DILUTION
ENGINES
FILTRATION
FLOW RATE
FLUID FLOW
FUEL ADDITIVES
FUELS
GASOLINE
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
MIXING
OPTIMIZATION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PERFORMANCE TESTING
PETROLEUM PRODUCTS
PLUGGING
SCALE CONTROL
SEPARATION PROCESSES
SYNTHETIC FUELS
TEMPERATURE EFFECTS
TESTING
UNLEADED GASOLINE
VEHICLES
WAXES