Fuel compositions with enhanced combustion characteristics
First Claim
1. A fuel composition comprising a major proportion of a hydrocarbonaceous middle distillate base fuel which has a sulfur content of less than 500 ppm and a minor emission reducing amount of at least one peroxy ester combustion improver dissolved therein wherein the middle distillate base fuel is further characterized by having a clear cetane number in the range of 30 to 60.
5 Assignments
0 Petitions
Accused Products
Abstract
Fuels, methods of producing fuels, and methods of using fuels to reduce the amount of atmospheric pollutants (NOx, CO, and/or hydrocarbons) formed on combustion of middle distillate fuels in engines or burner apparatus. These results can be achieved without concomitant increases in emissions of particulates. The fuels contain less than 500 ppm of sulfur and at least one peroxy ester combustion improver.
-
Citations
22 Claims
- 1. A fuel composition comprising a major proportion of a hydrocarbonaceous middle distillate base fuel which has a sulfur content of less than 500 ppm and a minor emission reducing amount of at least one peroxy ester combustion improver dissolved therein wherein the middle distillate base fuel is further characterized by having a clear cetane number in the range of 30 to 60.
- 17. In a combustion process wherein a middle distillate fuel is subjected to combustion in the presence of air, the improvement which comprises providing as the fuel used in such process a hydrocarbonaceous middle distillate base fuel having a sulfur content of less than 500 ppm and a clear cetane number in the range of 30 to 60, said fuel having dissolved therein a minor emission reducing amount of at least one peroxy ester combustion improver.
-
20. In a process for the production of a hydrocarbonaceous middle distillate fuel, the improvement which comprises controlling the sulfur content of the fuel to a level of 500 ppm or less and blending an emission reducing amount of at least one peroxy ester combustion improver with the resultant reduced sulfur-containing fuel wherein said fuel is further characterized by having a clear cetane number in the range of 30 to 60.
-
21. In the operation of a motor vehicle which operates on middle distillate fuel, the improvement which comprises fueling the vehicle with a hydrocarbonaceous middle distillate fuel characterized by (i) having a sulfur content of less than 500 ppm, (ii) a clear cetane number in the range of 30 to 60, and (iii) containing a minor emission reducing amount of at least one peroxy ester combustion improver dissolved therein.
-
22. In the operation of aircraft which operates on middle distillate fuel, the improvement which comprises fueling the aircraft with a hydrocarbonaceous middle distillate fuel characterized by (i) having a sulfur content of less than 500 ppm, (ii) a clear cetane number in the range of 30 to 60, and (iii) containing a minor emission reducing amount of at least one peroxy ester combustion improver dissolved therein.
Specification