Teh F Ho

US Patent:

7390664, Jun 24, 2008

Filed:

Dec 20, 2002

Appl. No.:

10/324201

Inventors:

Shun Chong Fung - Bridgewater NJ, US
Teh Chung Ho - Bridgewater NJ, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

G01N 31/10
B01J 19/24
B01J 8/06

US Classification:

436 17, 422 62, 422129, 422130, 422131, 436 85, 436139, 436155, 436159, 436161, 436164, 436172, 436183

Abstract:

The present invention relates to an apparatus and a process for the high-throughput, quick screening, optimization, regeneration, reduction and activation of catalysts. More specifically, the present invention is a method and apparatus to quickly screen, optimize and regenerate multiple fast deactivating catalysts while maintaining a predefined range of time-on-stream.

US Patent:

7959795, Jun 14, 2011

Filed:

Jul 22, 2008

Appl. No.:

12/220170

Inventors:

Teh C. Ho - Bridgewater NJ, US
Garland B. Brignac - Clinton LA, US
Zhiguo Hou - Nazareth PA, US
Michael C. Kerby - Center Valley PA, US
Tahmid I. Mizan - Bridgewater NJ, US
William E. Lewis - Baton Rouge LA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C10G 45/02

US Classification:

208217, 208208 R, 208209, 208213, 208216 R, 208243, 208244

Abstract:

The distillate catalytic hydrodesulfurization of hydrocarbon fuels wherein the optimum hydrogen treat gas rate to maximize desulfurization is determined and introduced into the reaction zone to maintain a controlled amount of hydrogen at the surface of the catalyst during hydrodesulfurization.

US Patent:

8444850, May 21, 2013

Filed:

Aug 13, 2010

Appl. No.:

12/856234

Inventors:

Teh C. Ho - Bridgewater NJ, US
Stuart L. Soled - Pittstown NJ, US
Kuangnan Qian - Belle Mead NJ, US
Stephen J. McCarthy - Center Valley PA, US
Andrew C. Moreland - Boerne TX, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C10G 35/04

US Classification:

208254H, 208 88, 208208 R, 208254 R, 700305, 702 22, 702129

Abstract:

The present invention relates to a catalytic process for removing organonitrogen species from hydrocarbon mixtures such as refinery process feedstreams. More particularly, this invention relates to a new operating and catalyst loading strategies based on organonitrogen concentration, composition, and structure.

US Patent:

8609429, Dec 17, 2013

Filed:

Nov 17, 2011

Appl. No.:

13/299178

Inventors:

Teh C. Ho - Bridgewater NJ, US
Glen B. Brons - Phillipsburg NJ, US
Limin Song - West Windsor NJ, US
Tahmid I. Mizan - Coppell TX, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

G01N 25/20

US Classification:

436147, 208 18, 208 19, 208 48 R

Abstract:

Methods for determining the fouling propensity of a hydrocarbon stream and for reducing fouling are provided. In one method, the fouling propensity of a hydrocarbon stream is determined by obtaining a parameter value indicative of the fouling propensity at no less than two different temperatures, and an activation energy of fouling by the hydrocarbon stream is derived therefrom. In another method, the thus obtained parameter value at no less than two different temperatures and the activation energy are used to select proper heating fluids and operating temperature and to determine whether to add an antifoulant to the hydrocarbon stream to reduce fouling at a given temperature.

US Patent:

20120118794, May 17, 2012

Filed:

Nov 11, 2011

Appl. No.:

13/294300

Inventors:

Teh C. HO - Bridgewater NJ, US
Glen B. BRONS - Phillipsburg NJ, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C10G 9/16
G01N 31/00

US Classification:

208 48AA, 436 2

Abstract:

Methods for determining the fouling propensity of a hydrocarbon stream and for reducing fouling are provided. In one method, the fouling propensity of a hydrocarbon stream is determined by obtaining a parameter indicative of the fouling propensity by a regression of a series of temperature measurements data for the hydrocarbon stream exiting a test unit. In another method, an effective minimal amount of an antifoulant is added to a hydrocarbon stream to reduce fouling, where the amount of the antifoulant is determined based on the fouling propensity of the hydrocarbon stream.

US Patent:

20130081978, Apr 4, 2013

Filed:

Aug 29, 2012

Appl. No.:

13/597582

Inventors:

Stephen Harold Brown - Annandale NJ, US
Teh C. Ho - Bridgewater NJ, US
Jane Chi-ya Cheng - Bridgewater NJ, US
Hyung Suk Woo - Easton PA, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

C10G 47/00

US Classification:

208108, 208144, 208213, 208254 H, 208251 H, 208 46

Abstract:

This invention is directed to a process for producing a hydroprocessed product. The invention is particularly advantageous in that substantially less hydrogen is absorbed during the process relative to conventional hydroprocessing methods. This benefit is achieved by using a particular solvent as a co-feed component. In particular, the solvent component contains at least one single ring aromatic compound and has a relatively low boiling point range compared to the heavy hydrocarbon oil component used as another co-feed component.

US Patent:

20130081979, Apr 4, 2013

Filed:

Aug 29, 2012

Appl. No.:

13/597616

Inventors:

Stephen Harold Brown - Annandale NJ, US
Teh C. Ho - Bridgewater NJ, US
Jane Chi-ya Cheng - Bridgewater NJ, US
Hyung Suk Woo - Easton PA, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

C10G 47/34

US Classification:

208108, 208141, 208143, 208213, 208251 H, 208254 H, 208264

Abstract:

This invention is directed to a process for producing a hydroprocessed product. The invention is particularly advantageous in that substantially longer run length can be attained relative to conventional hydroprocessing methods. This benefit is achieved by using a particular solvent as a co-feed component. In particular, the solvent component is comprised of at least one or more supercritical solvent compounds.

US Patent:

56485778, Jul 15, 1997

Filed:

Jun 2, 1995

Appl. No.:

8/460410

Inventors:

Teh Chung Ho - Bridgewater NJ
Stuart Leon Soled - Pittstown NJ
Sabato Miseo - Pittstown NJ
Gary Brice McVicker - Califon NJ
Michel Daage - Baton Rouge LA
Viktor Buchholz - Branchburg NJ

Assignee:

Exxon Research and Engineering Company - Florham Park NJ

International Classification:

C07C 510

US Classification:

585266

Abstract:

The present invention is directed toward a catalyst composition prepared by a process comprising: (a) impregnating an oxide precursor selected from the group consisting of rare earth oxide precursors, yttria precursors and mixtures thereof, onto an inorganic refractory oxide support; (b) drying said support at a temperature of about 100. degree. to about 120. degree. C. followed by calcining said support at a temperature of about 400. degree. to about 600. degree. C. ; and (c) compositing or depositing on said support of step (b), a catalyst precursor salt represented by (ML)(Mo. sub. y W. sub. 1-y O. sub. 4). sub. a wherein M comprises Cr and/or one or more divalent promoter metals selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof, wherein y is any value ranging from 0 to 1, and wherein L is one or more neutral, nitrogen-containing ligands at least one of which is a chelating polydentate ligand; a=1 when chromium is not one of the promoter metals and 0. 5. ltoreq. a. ltoreq. 3 when Cr is one of the promoter metals. (d) sulfiding said deposited or composited support of step (c) with an excess amount of sulfur in the form of one or more sulfur bearing compounds and at a temperature of at least about 250. degree. C.