Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Fuelcell Energy, Inc.

Exxonmobil Upstream Research Company

Exxonmobil Technology and Engineering Company

William C Horn

William Anthony Lamberti

Gabor Kiss

Terry Eugene Helton

Tan-Jen Chen

Abdelkader Hilmi

Heather A Elsen

Timothy C Geary

Thomas Elmer Green

Jonathan Rosen

Anding Zhang

Adam Franco

Harry William Deckman

Leonard J Srnka

Robert J Pottorf

Hubert E King

Joseph Moebus

Charles Raymond Buhler, Iv

Judson Sid Clements

Gordon Macleod

Mindy M Zimmer

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 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

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

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Long Valley, NJ, United States of America

William C Horn