Paul J Polini

US Patent:

8507404, Aug 13, 2013

Filed:

Apr 10, 2008

Appl. No.:

12/082351

Inventors:

Walter Weissman - Basking Ridge NJ, US
Paul J. Polini - Rahway NJ, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

B01J 23/00
B01J 21/00
B01J 20/00

US Classification:

502302, 502 20, 502 63, 502 64, 502 65, 502 66, 502 73, 502 74, 502 87, 502216, 502222, 502223, 502240, 502245, 502260, 502263, 502300, 502303, 502304, 502324, 502328, 502330, 502331, 502332, 502336, 502338, 502344, 502345, 502346, 502347, 502348, 502349, 502350, 502351, 502355, 502415, 502439, 502514, 502517

Abstract:

Provided are improved regenerable SOtrap formulations for on-board vehicle applications. The regenerable sulfur trap formulations reduce the rate of sulfur poisoning of a downstream nitrogen storage reduction (NSR) catalyst trap in exhaust gas cleaning systems for combustion engines by adsorbing SOas metal sulfate under lean exhaust conditions and desorbing the accumulated SOunder rich exhaust conditions. The regenerable sulfur oxides trap catalyst compositions include a metal (M) oxide, wherein M is selected from Cu, Fe, Mn, Ag, Co and combinations thereof and a metal (M)-La—Zr oxide, wherein M is selected from Cu, Fe, Mn, Ag, Co and combinations thereof. In addition, provided are improved exhaust gas cleaning systems and methods for treating exhaust gas from a combustion source that include a hydrogen generation system, a regenerable sulfur oxides trap, and a regenerable nitrogen storage reduction (NSR) catalyst trap. The improved exhaust gas cleaning systems and methods allow for the sulfur released from the sulfur trap to pass through the nitrogen oxide trap with no or little poisoning of NOstorage and reduction sites, which significantly improves NSR catalyst trap lifetime and performance to meet future emissions standards. The disclosed exhaust gas cleaning systems are suitable for use in internal combustion engines (e. g.

US Patent:

20130315808, Nov 28, 2013

Filed:

Jul 2, 2013

Appl. No.:

13/933508

Inventors:

Walter Weissman - Basking Ridge NJ, US
Paul James Polini - Rahway NJ, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

B01D 53/94

US Classification:

4232135, 4232137

Abstract:

Provided are improved exhaust gas cleaning systems and methods for treating exhaust gas from a combustion source that include a hydrogen generation system, a regenerable sulfur oxides trap, and a regenerable nitrogen storage reduction (NSR) catalyst trap. The improved exhaust gas cleaning systems and methods allow for the sulfur released from the sulfur trap to pass through the nitrogen oxide trap with no or little poisoning of NOstorage and reduction sites, which significantly improves NSR catalyst trap lifetime and performance to meet future emissions standards. The disclosed exhaust gas cleaning systems are suitable for use in internal combustion engines (e.g., diesel, gasoline, CNG) which operate with lean air/fuel ratios over most of the operating period.

US Patent:

60077050, Dec 28, 1999

Filed:

Dec 18, 1998

Appl. No.:

9/216572

Inventors:

Mark Alan Greaney - Upper Black Eddy PA
Paul James Polini - Rahway NJ

Assignee:

Exxon Research and Engineering Co - Florham Park NJ

International Classification:

C10G 1700

US Classification:

208251R

Abstract:

The present invention relates to a process for demetallating a petroleum stream by contacting a metals-containing petroleum feed in the presence of an aqueous base selected from Group IA and IIA hydroxides and carbonates and ammonium hydroxide and carbonate and mixtures thereof, an oxygen containing gas and a phase transfer agent at a temperature of up to 180. degree. C. for a time sufficient to produce a treated petroleum feed having a decreased metals content. The invention provides a method for enhancing the value of petroleum feeds that traditionally have limited use in refineries due to their metals, e. g. , Ni and V content.

US Patent:

59118598, Jun 15, 1999

Filed:

Jul 15, 1997

Appl. No.:

8/900390

Inventors:

Mark Alan Greaney - Upper Black Eddy PA
Paul James Polini - Rahway NJ

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

C25B 1100

US Classification:

204280

Abstract:

The invention provides a working electrode for use in an undivided electrochemical cell that is composed of at least one three dimensional accordion pleated sheet member having an open surface area of from zero to 50%. Typically suitable materials include metal mesh and woven fibers. The invention also includes an undivided electrochemical cell, containing the novel working electrode. Finally, the invention includes a method for electrochemically treating a metals-containing hydrocarbon stream in an undivided electrochemical cell by contacting a metals containing hydrocarbon stream with the novel pleated electrode. The invention has broad applicability for treating starting materials that produce electrochemically reversible (redox active) intermediates.