Shell Oil Comapny

Shell Internationale Research Maatschappij, B.v.

Mary Ann Dahlstrom

Ralph Anthony Cherrillo

Richard Hugh Clark

Paul Anthony Stevenson

Edward Carl Nelson

Mylin Camero

Ian Geoffrey Virrels

Cara Siobhan Tredget

Scott James Siebert Hartman

A fuel composition comprising a Fischer-Tropsch derived middle distillate fuel and a middle distillate flow improver, the remainder being another fuel component or mixture of fuel components. The other fuel component is selected from petroleum derived middle distillate fuel, hydrogenated vegetable oil, fatty acid methyl esters, and other Fischer Tropsch products. The Fischer-Tropsch derived middle distillate fuel is more than 80% v/v of the total composition; the maximum weight content in the carbon number distribution of the n-paraffins in the Fischer-Tropsch derived middle distillate fuel is below C16 and the weight ratio of iso to normal paraffins in the Fischer-Tropsch derived middle distillate fuel is 3.5:1 or higher. The middle distillate flow improver is a substituted ethylene polymer.

Fischer-Tropsch derived fuel compositions

A fuel composition having an enhanced thermal stability in a diesel fuel application is provided comprising a base fuel containing:

Fuel compositions

A diesel fuel based on a blend of a diesel fuel derived from a Fischer-Tropsch process, and a mineral oil based diesel fuel having a sulfur content of less than 100 ppmw; and a method of operating a diesel engine, which method involves combusting such diesel fuel in the diesel engine.

Diesel fuel and a method of operating a diesel engine

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Katy, TX, United States of America

Mary Ann Dahlstrom