Exxonmobil Research and Engineering Company

Exxonmobil Technology and Engineering Company

Gregory Paul Rockwell

Dennis H Hoskin

Marc-Andre Poirier

David John Abdallah

Mike T Noorman

Bradley Scott Barnes

Rainer Detlef Mai

Sean M Mercer

Randall Stephen Lachine

Babak Adam Jajuee

Alexander S Lang

Alex S Lang

Gary J Johnston

Roger G Gaughan

Diesel fuel compositions are provided that have unexpectedly beneficial cold flow properties. Methods for forming such diesel fuel compositions are also provided. The improved cold flow properties are achieved in part based on dewaxing of a distillate fraction of the composition. The improved cold flow properties are achieved further in part based on inclusion of a cold flow additive and fatty acid alkyl ester in the composition, such as fatty acid methyl ester.

Dewaxed diesel fuel composition

A process for the remediation of contaminated particulate materials by the addition of an environmentally benign, carbonaceous fuel source in low concentration to enable or enhance smoldering combustion. The process may be applied to both in situ and ex situ treatments. In an ex situ smoldering process for the remediation of contaminated particulate materials in a continuous manner, contaminated feed is introduced near the top of a treatment unit and treated product emerges near the bottom. A smoldering front is maintained in the unit, fed by the fuel in the contaminated particulate material and a supply of combustion-supporting gas, such as air.

Remediation of contaminated particulate materials

Methods and systems are provided for two-stage treatment of contaminated particulate material, such as soil, sediment, and/or sludge. The methods and systems utilize a thermal desorption process combined with a smoldering combustion process. The contaminated particulate material is first exposed to thermal desorption at high temperatures (e.g., greater than 150&#xb0; C.) to form a heated contaminated particulate material. Next, a smoldering combustion process is initiated by introducing a combustion-supporting gas. The combined process can take place in the same or different treatment units.

Two-stage remediation of particulate material

Growing community of inventors

Sarnia, Canada

Gregory Paul Rockwell