Exxonmobil Research and Engineering Company

Exxonmobil Technology and Engineering Company

Mike T Noorman

Shifang Luke Luo

Ian J Laurenzi

Gregory K Lilik

Jacob Joseph Habeeb

Dennis H Hoskin

Scott K Berkhous

Sheryl B Rubin-Pitel

Randolph John Smiley

Marc-Andre Poirier

Shifang Luo

Jasmina Poturovic

David John Abdallah

Krystal B Wrigley

Charles Hall Schleyer

Lisa I Yeh

Paul Patrick Wells

Matthew H Lindner

Daniel E Kadlecek

Donna I Hoel

Zsolt Lengyel

Alexander S Freer

Poturovic Jasmina

Jeffrey H Farenback-Brateman

Jeffrey Farenback-Brateman

Gary J Johnston

Roger G Gaughan

Paul P Wells

Kerosene boiling range or jet fuel boiling range compositions are provided that are formed from crude oils with unexpected combinations of high naphthenes to aromatics weight and/or volume ratio and a low sulfur content. The resulting kerosene boiling range fractions can have an unexpected combination of a high naphthenes to aromatics weight ratio, a low but substantial aromatics content, and a low sulfur content. Such fractions can potentially be used as fuel after a reduced or minimized amount of additional refinery processing. By reducing, minimizing, or avoiding the amount of refinery processing needed to meet fuel and/or fuel blending product specifications, the fractions derived from the high naphthenes to aromatics ratio and low sulfur crudes can provide fuels and/or fuel blending products having a reduced or minimized carbon intensity.

High napthenic content kerosene compositions

Naphtha boiling range compositions are provided that are formed from crude oils with unexpected combinations of high naphthenes to aromatics weight and/or volume ratio and a low sulfur content. The resulting naphtha boiling range fractions can have a high naphthenes to aromatics weight ratio, a low but substantial content of aromatics, and a low sulfur content. In some aspects, the fractions can be used as fuels and/or fuel blending products after fractionation with minimal further refinery processing. In other aspects, the amount of additional refinery processing, such as hydrotreatment, catalytic reforming and/or isomerization, can be reduced or minimized. By reducing, minimizing, or avoiding the amount of hydroprocessing needed to meet fuel and/or fuel blending product specifications, the fractions derived from the high naphthenes to aromatics ratio and low sulfur crudes can provide fuels and/or fuel blending products having a reduced or minimized carbon intensity.

High naphthenic content naphtha fuel compositions

High temperature antioxidant additives and methods that improve a liquid fuel composition's thermal oxidative stability are disclosed. A liquid fuel composition may comprise a liquid fuel; and a high temperature antioxidant additive comprising a nitroxide radical having a formula: wherein R, R, R, and Rare individually selected from an alkyl group or a hetero atom substituted alkyl group, and wherein Rand Rare any atom or group except hydrogen which can bond covalently to carbon.

Fuel high temperature antioxidant additive

Naphthene-containing distillate compositions are provided herein. Methods of improving fuel compositions and blends using the naphthene-containing distillate compositions are also provided herein.

Naphthene-containing distillate stream compositions and uses thereof

The invention provides enriched fuels and methods that expand the operating envelope of an advanced combustion engine during operation in an advanced combustion mode (e.g. HCCI mode). Enriched fuels and methods of the invention facilitate efficient combustion over a wide range of engine loads, and the need for EGR, VVT, NVO, rebreathing, or multiple fuel injection is either reduced or eliminated.

Expanding the operating envelope of advanced combustion enigines

The invention provides novel methods for optimizing the design of a fatty acid alkyl ester-containing biofuel (e.g. a biodiesel, a biodiesel blend, or a jet biofuel) and for identifying a fatty acid alkyl ester-containing biofuel's feedstock.

Methods for analyzing and optimizing biofuel compositions

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Doylestown, PA, United States of America

Mike T Noorman