Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Exxonmobil Upstream Research Company

Fuelcell Energy, Inc.

Exxon Research and Engineering Company

Univation Technologies, LLC

Exxonmobil Technology and Engineering Company

William Anthony Lamberti

William C Horn

Harry William Deckman

Gabor Kiss

Joseph Moebus

Charles Raymond Buhler, Iv

Terry Eugene Helton

Tan-Jen Chen

Abdelkader Hilmi

Heather A Elsen

Hubert E King

Timothy C Geary

Thomas Elmer Green

Jonathan Rosen

Anding Zhang

Judson Sid Clements

Adam Franco

Matthew William Holtcamp

Gary David Mohr

Daniel Paul Leta

Chi-I Kuo

Lubin Luo

Richard B Pannell

Eric John Markel

Xuan Ye

Charles J Harlan

Kevin Bruce Stavens

George M Kramer

Leonard J Srnka

Robert J Pottorf

Marc L DeChellis

Edwin R Ernst

Antonio S Buono

Sutinder K Behal

Mark Michael Disko

Judson Sidney Clements

Corrine L Brandl

Gordon Macleod

Mindy M Zimmer

James H Macquaker

Michael G Myers

Marc L Dechellis

Joseph A Moebus

Charles R Buhler

Eric L Markel

An elevated target amount of electrolyte is used to initially fill a molten carbonate fuel cell that is operated under carbon capture conditions. The increased target electrolyte fill level can be achieved in part by adding additional electrolyte to the cathode collector prior to start of operation. The increased target electrolyte fill level can provide improved fuel cell performance and lifetime when operating a molten carbonate fuel cell at high current density with a low-COcontent cathode input stream and/or when operating a molten carbonate fuel cell at high COutilization.

Operation of molten carbonate fuel cells with high electrolyte fill level

A method of analyzing a rock sample includes analyzing one or more large-area, low-resolution micrographs to identify areas requiring higher-resolution imaging, and selecting one or more analysis regions from the areas requiring higher-resolution imaging. Multi-spectral imaging is used on the one or more analysis regions to obtain one or more high-resolution, multi-spectral images, and one or more features of the rock sample are identified from the corresponding one or more high-resolution, multi-spectral images. The method further includes upscaling the one or more high-resolution, multi-spectral images and thereby geo-locating the features of the rock sample to key regions of the rock sample.

Microanalysis of fine grained rock for reservoir quality analysis

A process for producing polyethylene polymers including contacting ethylene and at least one Cto Calpha-olefin comonomer with a polymerization catalyst on a particulate support in a fluidized bed polymerization reactor under conditions effective to polymerize at least part of the ethylene and comonomer and produce the polyethylene polymers, wherein the support has a dparticle size as measured by laser diffraction of at least 18 microns, is provided.

Process for producing polyethylene polymers

Catalyst systems including a catalyst compound having a Group 3 through Group 12 metal atom or lanthanide metal atom, an activator, and a support material composition, are provided. The support material composition may have a volume percent of pores with a pore size of from 300 angstroms to 1500 angstroms of 10 vol % to 80 vol %. Processes for producing a polyolefin composition utilizing such catalyst systems are also provided.

Catalyst systems and polymerization processes for using the same

A process for producing an alkylated aromatic compound comprises contacting an aromatic starting material and hydrogen with a plurality of catalyst particles under hydroalkylation conditions to produce an effluent comprising the alkylated aromatic compound, the catalyst comprising a composite of a solid acid, an inorganic oxide different from the solid acid and a hydrogenation metal, wherein the distribution of the hydrogenation metal in at least 60 wt % of the catalyst particles is such that the average concentration of the hydrogenation metal in the rim portion of a given catalyst particle is Crim, the average concentration of the hydrogenation metal in the outer portion of a given catalyst particle is Couter, the average concentration of the hydrogenation metal in the center portion of the given catalyst particle is Ccenter, where Crim/Ccenter&#x2267;2.0 and/or Couter/Ccenter2.0. Also disclosed are rimmed catalyst and process for making phenol and/or cyclohexanone using the catalyst.

Process for making alkylated aromatic compound

A process for producing an alkylated aromatic compound comprises contacting an aromatic starting material and hydrogen with a plurality of catalyst particles under hydroalkylation conditions to produce an effluent comprising the alkylated aromatic compound, the catalyst comprising a composite of a solid acid, an inorganic oxide different from the solid acid and a hydrogenation metal, wherein the distribution of the hydrogenation metal in at least 60 wt % of the catalyst particles is such that the average concentration of the hydrogenation metal in the rim portion of a given catalyst particle is Crim, the average concentration of the hydrogenation metal in the center portion of the given catalyst particle is Ccenter, where 0.2&#x2266;Crim/Ccenter&#x3c;2.0. Also disclosed are hydroalkylation catalyst and process for making phenol and/or cyclohexanone using the catalyst.

Probes for monitoring electrostatic phenomena in challenging environments, such as fluidized bed reactors. These probes include a coated or uncoated static probe for measuring electric field and or particle charge state, an oscillatory electric field probe for measuring electric field, a chopped electric field probe for measuring electric field, and a radio-frequency antenna probe for detecting electrostatic discharges.

Instruments for monitoring electrostatic phenomena in reactors

Provided is a method for operating a gas-phase, fluidized-bed reactor. The method has the steps of (a) receiving a signal from a probe in contact with the interior of the reactor or a process component in communication with the reactor, wherein the signal is derived from a physical property or condition within the reactor or the process component; (b) modifying the signal to create a modified signal; and (c) adjusting one or more operating parameters of the reactor in response to the modified signal if the physical property or condition is different than a desired value. There is also a method for reducing fouling in a distributor plate of a gas-phase, fluidized-bed reactor with a recycle line.

Methods for processing and interpreting signals from static and acoustic probes in fluidized bed reactor systems

The present techniques are directed to a method for microprobe analyses of isotope ratios in inhomogeneous matrices. The method includes selecting matrix standards that have matrices that resemble a target matrix. A bulk isotope analysis is run on each of the matrix standards to determine a bulk isotope ratio value. A microprobe analysis is run on each of the matrix standards to determine a microprobe isotope ratio values for each of the plurality of matrix standards. Spurious values are eliminated from the microprobe isotope ratio values. The microprobe isotope ratio values are averaged for each of the matrix standards to create an average microprobe isotope ratio value associated with each of the matrix standards. The bulk isotope ratio value for each of matrix standards is plotted against the average microprobe isotope ratio value associated with each of the matrix standards to create a matrix corrected calibration curve.

Measurement of isotope ratios in complex matrices

Described herein are methods for monitoring and restoring electrical properties of polymerization reactor wall films. The method may comprise using a reactor wall monitor to monitor and determine an electrical property, such as the bed voltage or breakdown voltage, of the wall film. The method may further comprise adding continuity additive to the reactor and/or adjusting the feed rate of continuity additive being added to the reactor in response to the measured electrical property.

Method and apparatus for monitoring and restoring electrical properties of polymerization reactor wall film

Apparatus and methods for gas phase polymerization are provided. The method can include polymerizing one or more olefins at gas phase conditions in a reactor comprising one or more process exposed surfaces in the presence of a catalyst system; and treating at least a portion of the one or more process exposed surfaces prior to injecting the catalyst system to reduce the number of surface hydroxyls or access of the catalyst system to the surface hydroxyls on the process exposed surfaces.

Gas phase polymerization and distributor plate passivation treatment

A process for preparing a low ash coal wherein coal is depolymerized at low temperature by contacting finely divided coal with a hard acid and soft base, and extracting the depolymerized coal to remove mineral contaminants.

Low ash coal products from depolymerized coal

Growing community of inventors

Stewartsville, NJ, United States of America

William Anthony Lamberti