Fuel additive for diesel fuels

Patent · Tue Dec 30 04:00:00 EST 1980

OSTI ID:6784517

Malec, R E

An anti-wear compression ignition fuel for use in diesel engines comprising (1) a monohydroxy alkanol having from 1 to 5 carbon atoms, and (2) a wear inhibiting amount of a c12 to c30 hydrocarbyl succinic acid or anhydride, E.G. Tetrapropenyl succinic acid. Optionally, said fuel composition may also contain an ignition accelerator such as an organic nitrate. It has recently been disclosed in brazilian patent application no. P17700392 that alcohols, such as methanol and ethanol, can be substituted for conventional petroleum derived diesel fuels for burning in diesel engines, when used in combination with an ignition accelerator, such as ethyl nitrate or nitrite. Reportedly, the addition of alkyl nitrate or nitrite accelerators to the alcohol achieves a level of auto-ignition sufficient to operate in diesel engines. Unfortunately, these fuel compositions , devoid of any petroleum derived products, are notably deficient in lubricity or lubricating properties with the result that engine wear from the use of these fuels in internal combustion reciprocating diesel engines is a serious problem. Of particular concern are wear problems associated with the fuel injector mechanism used in such engines. Wear problems have also been encountered in diesel engines operating on light diesel fuel oils as disclosed in U.S. Pat. No. 4,002,437.

• Assignee: Ethyl Corp
• Patent Number(s): US 4242099
• OSTI ID: 6784517
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADDITIVES
ALCOHOLS
ANHYDRIDES
CARBOXYLIC ACIDS
DIESEL FUELS
ETHANOL
FUEL ADDITIVES
HYDROXY COMPOUNDS
NITRATES
NITROGEN COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
WEAR