Edward Wy Hsu, 87Palm Beach, FL

6486217, Nov 26, 2002

Dec 15, 2000

09/738844

Min Chang - Warren NJ
Constantine Anastasios Coulaloglou - Randolph NJ
Edward Ching-Sheng Hsu - Bridgewater NJ

ExxonMobil Research and Engineering Company - Annandale NJ

C07C 2700

518700, 518705, 518706

A gas distribution grid for a slurry reactor includes a plurality of gas injectors horizontally arrayed across, and extending through, an otherwise gas and liquid impervious plate. The injectors have a throat open at both ends, with a gas pressure reducing bore at one end which is the entrance end and with the other end opening into an upward opening cone. Flow diverting means in the injectors prevents slurry solids from entering the throat and being attrited by the high velocity gas jet exiting the bore into the throat. It is preferred that the gas injectors not protrude above the top surface of the grid and flat space is eliminated by means such as angular fillers, to prevent solids accumulation top of the grid. A chamber may be present at the junction of the bore and throat to prevent unrestricted expansion of the gas jet entering the throat. This is useful for injecting gas into a reactive hydrocarbon synthesis slurry in a slurry reactor, with reduced catalyst attrition and deactivation.

2006005, Mar 16, 2006

Aug 12, 2005

11/202593

Edward Hsu - Bridgewater NJ, US
Rutton Patel - Arlington VA, US
Leo Brown - Baton Rouge LA, US

C10G 19/00

208263000

This invention is a method for reducing the total acid number of organic acid containing petroleum oil comprising forming a water-in-oil emulsion comprising an aqueous Group IIA metal hydroxide solution or slurry in a hydrocarbon oil, said water-in-oil emulsion having an aqueous droplet particle size diameter of from 1 to 25μ, adding the water-in-oil emulsion to the organic acid containing petroleum oil and permitting the mixture to stand for a time sufficient to permit the neutralization of the organic acids in the petroleum oil.

6199835, Mar 13, 2001

Dec 28, 1999

9/473514

Min Chang - Warren NJ
Constantine A. Coulaloglou - Mendham NJ
Edward C. Hsu - Bridgewater NJ

Exxon Research and Engineering Company - Florham Park NJ

F26B 1710

261 77

A gas distribution grid for a slurry reactor includes a plurality of gas injectors horizontally arrayed across, and extending through, an otherwise gas and liquid impervious plate. The injectors have a throat open at both ends, with a gas pressure reducing bore at one end which is the entrance end and with the other end opening into an upward opening cone. Flow diverting means in the injectors prevents slurry solids from entering the throat and being attrited by the high velocity gas jet exiting the bore into the throat. It is preferred that the gas injectors not protrude above the top surface of the grid and flat space is eliminated by means such as angular fillers, to prevent solids accumulation top of the grid. A chamfer may be present at the junction of the bore and throat to prevent unrestricted expansion of the gas jet entering the throat. This is useful for injecting gas into a reactive hydrocarbon synthesis slurry in a slurry reactor, with reduced catalyst attrition and deactivation.

5905094, May 18, 1999

Oct 21, 1997

8/955131

Min Chang - Warren NJ
Constantine A. Coulaloglou - Mendham NJ
Edward C. Hsu - Bridgewater NJ
Larry E. Pedrick - Houston TX

Exxon Research and Engineering Co. - Florham Park NJ

C07C27/00

518700

A slurry hydrocarbon synthesis process with reduced catalyst attrition is achieved by injecting a synthesis gas comprising a mixture of H. sub. 2 and CO up into the reactive slurry with a gas distribution grid having gas injectors horizontally arrayed across, and vertically extending through, an otherwise gas and liquid impervious plate. The injectors have a throat with a gas pressure reducing orifice at one end, which is the bottom and gas entrance end, and the other end opening into an open cone in which the uprising gas contacts the slurry. Flow diverting means in the injectors prevents slurry from entering the throat and being attrited. The gas injectors do not protrude above the top surface of the plate and flat space is eliminated by means such as angular fillers, to prevent solids accumulation top of the tray.

4419200, Dec 6, 1983

Jul 27, 1981

6/286874

Edward C. Hsu - Bridgewater NJ
Norman N. Li - Edison NJ
Taras Hucal - Iselin NJ

Exxon Research and Engineering Co. - Florham Park NJ

B03C 500
C25B 1100

204186

An improved process for electrically coalescing water-in-oil emulsions in an AC electrical field, wherein the improvement comprises using insulated electrodes having a dielectric constant which is at least about 3 and having a hydrophobic surface in contact with the emulsion. This invention results in faster coalescense of the emulsion than can be obtained with insulated electrodes having a lower dielectric constant, even if the electrode-emulsion interface is hydrophobic. Formation of spongy emulsion and decomposition of the oil phase under the high voltages required for rapid coalescense is minimized and even eliminated.

4415426, Nov 15, 1983

Jul 27, 1981

6/286875

Edward C. Hsu - Bridgewater NJ
Norman N. Li - Edison NJ
Taras Hucal - Iselin NJ

Exxon Research and Engineering Co. - Florham Park NJ

C25B 1100
C10G 3302

204290R

Improved electrodes for electrically coalescing water-in-oil emulsions in an AC electrical field, wherein the improvement comprises insulated electrodes having a dielectric constant of at least about 3 and a hydrophobic surface in contact with the emulsion. This invention results in faster coalescense of emulsions than can be obtained with insulated electrodes having a lower dielectric constant even if the surface of the electrode at the electrode-emulsion interface is hydrophobic. Formation of spongy emulsion and decomposition of the oil phase under the high voltages required for rapid coalescense is minimized and even eliminated.

6076810, Jun 20, 2000

Oct 21, 1997

8/955130

Min Chang - Warren NJ
Constantine A. Coulaloglou - Mendham NJ
Edward C. Hsu - Bridgewater NJ

Exxon Research and Engineering Co. - Florham Park NJ

F26B 1710

261 77

A gas distribution grid for a slurry reactor includes a plurality of gas injectors horizontally arrayed across, and extending through, an otherwise gas and liquid impervious plate. The injectors have a throat open at both ends, with a gas pressure reducing bore at one end which is the entrance end and with the other end opening into an upward opening cone. Flow diverting means in the injectors prevents slurry solids from entering the throat and being attrited by the high velocity gas jet exiting the bore into the throat. It is preferred that the gas injectors not protrude above the top surface of the grid and flat space is eliminated by means such as angular fillers, to prevent solids accumulation top of the grid. A chamfer may be present at the junction of the bore and throat to prevent unrestricted expansion of the gas jet entering the throat. This is useful for injecting gas into a reactive hydrocarbon synthesis slurry in a slurry reactor, with reduced catalyst attrition and deactivation.

4692237, Sep 8, 1987

Apr 1, 1985

6/718134

Edward C. Hsu - Bridgewater NJ
Philip Merchant - Houston TX
Dean L. Smith - Mountainside NJ
Kevin P. Kelly - Houston TX
Sylvia M. Lacy - Pearland TX

Exxon Chemical Patents Inc. - Linden NJ

C10G 2920
C10G 3304

208177

A process for removing suspended solids, particularly difficultly filterable inorganic solids, from an oil obtained as a refinery process fraction from steam and catalytic cracking units, shale oil retorting process fraction, or from coal conversion processes by adding to the oil an agglomerating agent which is a polyelectrolyte, usefully a water-in-oil emulsion of a water-soluble polymer whereby said solids are clustered together into readily separable agglomerates.