Office of Technology Transfer – University of Michigan

Selective Sorbents for Desulfurization of Liquid Fuels

Technology #2172

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Ralph T. Yang
Managed By
Jeremy Nelson
Patent Protection
US Patent 7,053,256
US Patent 7,029,574
US Patent 7,148,389
Sulfur and Nitrogen Removal from Transportation Fuels by -Complexation
J. Chinese Inst. Chem. Eng. (James Wei Festschrift Issue), Volume 37. Page 1. 2006
Effects of Oxygenates and Moisture on Adsorptive Desulfurization of Liquid Fuels with Cu(I)Y Zeolite
Catalysis Today, Volume 116. Page 512. 2006
Desulfurization of Commercial Fuels by -Complexation: Monolayer CuCl/-Al2O
Appl Catal B, Volume 61. Page 212. 2005

UM File # 2172

Removing sulfur-containing compounds is an important operation in petroleum refining, since new legislation will require substantial reductions in the sulfur content of transportation fuels. This presents the challenge of selectively removing sulfur compounds from liquid fuels, for which commercial sorbents are not desirable.

Technology Description
Researchers at the University of Michigan have developed a number of new sorbents for use in a number of applications. These include sorbents for: olefin paraffin separations, diene olefin separation or purification, and aromatics aliphatics separation and purification. These sorbents interact with chemical bonds rather than the weaker van der Waals interactions of previous sorbents. This allows the sorbents to be more selective than previous ones.

Applications • Oil refinement
Advantages • Selective removal of sulfur from liquid fuels