Andrzej M. Malek - Doylestown PA, US Stephen C. Leviness - Tulsa OK, US Horacio M. Trevino - Annandale NJ, US Weldon K. Bell - Ridgeway IA, US David O. Marler - Morris Plains NJ, US
Assignee:
ExxonMobil Research and Engineering Company - Annandale NJ
A process for enhancing the activity of a catalyst metal particulate for hydrogenation reactions comprising calcining the particulate in an oxidant-containing atmosphere to partially oxidize it thereby forming a porous layer of oxides thereon, treating with an solution capable of oxidizing the calcined metal particulate and comprising a compound of a hydrogenation catalyst metal to where said metal particulate has absorbed a volume of solution equal to at least about 10% of its calculated pore volume and activating it by treatment with a hydrogen-containing gas at elevated temperatures thereby forming a dispersed active metal catalyst. Preferably, the treated particulate is calcined a second time under the same conditions as the first before final activation with a hydrogen-containing gas. The metal particulate is preferably sized after each calcination and any agglomerates larger than 250 microns are comminuted to a desired size.
Wenyih Frank Lai - Bridgewater NJ, US Robert Ellis Kay - Easton PA, US Christine N. Elia - Bridgewater NJ, US Frederick Y. Lo - Middlesex NJ, US David O. Marler - Morris Plains NJ, US
The invention relates to a process for converting hydrocarbons with a catalyst comprising a crystalline molecular sieve composition which is obtainable by crystallizing a pre-formed extrudate mixture in a reactor and, during crystallization, removing excess alkali metal hydroxide from the pre-formed extrudate. The pre-formed extrudate mixture comprises at least one source of ions of tetravalent element Y, at least one source of alkali metal hydroxide, water, optionally at least one seed crystal, and optionally at least one source of ions of trivalent element X. The reaction mixture has the following mole composition: Y:X=10 to infinity; OH:Y=0. 001 to 2; and M:Y=0. 001 to 2; wherein M is an alkali metal. The amount of water in the mixture is at least sufficient to permit extrusion of said reaction mixture.
Drying Device For Producing Small Quantities Of Controlled Particle Size Catalysts Which Are Appropriate For Use In Fluidized Bed Operations Such As Fluid Catalytic Cracking
William A. Wachter - Flemington NJ, US Jeffrey T. Elks - Geneva IL, US Brenda A. Raich - Annandale NJ, US Theodore E. Datz - Easton PA, US Mary T. Van Nostrand - Clinton NJ, US Gordon F. Stuntz - Hellertown PA, US David O. Marler - Easton PA, US Nicholas Rollman - Slatington PA, US
Assignee:
ExxonMobil Research and Engineering Company - Annandale NJ
International Classification:
B01J 35/02
US Classification:
502 60
Abstract:
Catalysts for experimentation are produced having a controlled matrix pore structure. The manufacturing process utilizes tape casting in the drying procedure in which a catalyst slurry is cast on a substrate and dried at a temperature of between about 50 C. to 200 C. for a period of time of about 0. 1 to 1. 0 hour. The dried catalyst particles can be removed from the substrate by several techniques, including scraping, burning, and deforming the substrate material. The resulting catalytic particles can be produced in an amount of about ca. 3 g to 300 g from slurries with volumes between 5 cc to 500 cc, which are suitable for small scale FCC reactors and for high throughput experimentation.
Andrzej M. Malek - Doylestown PA, US Stephen C. Leviness - Tulsa OK, US Horacio M. Trevino - Annandale NJ, US Weldon K. Bell - Ridgeway IA, US David O. Marler - Morris Plains NJ, US
Assignee:
ExxonMobil Research and Engineering Company - Annandale NJ
Dispersed Active Metal catalyst for hydrogenation reactions is produced by treating a substantially catalytically inactive metal particulate with a solution capable of oxidizing the metal particulate and comprising of at least one compound of a hydrogenation catalyst metal thereby forming a layer of at least one of hydroxides and oxides thereon. The metal particulate is activated by treatment with a hydrogen-containing gas at elevated temperatures to form a porous layer of Dispersed Active Metal catalyst. Preferably, the treated metal particulate is dried prior to activation, and also preferably calcined in an oxidant-containing atmosphere prior to activation. The treatment solution may advantageously contain a compound of at least one promoter metal for the added catalyst metal. The porosity of the layer provides enhanced catalyst activity as well as improved methane selectivity in the Fischer-Tropsch process.
Drying Device For Producing Small Quantities Of Controlled Particle Size Catalysts Which Are Appropriate For Use In Fluidized Bed Operations Such As Fluid Catalytic Cracking
William A. Wachter - Flemington NJ, US Brenda A. Raich - Annandale NJ, US Theodore E. Datz - Easton PA, US David O. Marler - Easton PA, US Nicholas Rollman - Hamburg PA, US Jeffrey T. Elks - Geneva IL, US Gordon F. Stuntz - Baton Rouge LA, US
Assignee:
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ
Catalysts for experimentation are produced having a controlled matrix pore structure. The manufacturing process utilizes tape casting in the drying procedure in which a catalyst slurry is cast on a substrate and dried at a temperature of between about 50 C. to 200 C. for a period of time of about 0.1 to 1.0 hour. The dried catalyst particles can be removed from the substrate by several techniques, including scraping, burning, and deforming the substrate material, The resulting catalytic particles can be produced in an amount of about ca. 3 g to 300 g from slurries with volumes between 5 cc to 500 cc, which are suitable for small scale FCC reactors and for high throughput experimentation.
Catalyst Modification For Shape Selective Hydrocarbon Conversions
Rudolph M. Lago - Yardley PA David O. Marler - Deptford NJ Sharon B. McCullen - Newtown PA David H. Olson - Pennington NJ
Assignee:
Mobil Oil Corporation - Fairfax VA
International Classification:
B01J 2906
US Classification:
502 63
Abstract:
A process for shape selective hydrocarbon conversion involves contacting a hydrocarbon feedstream under conversion conditions with a catalytic molecular sieve which has been modified by treatment with an amino silane polymer while molecular sieve acid sites are protected. When the process is toluene disproportionation, a toluene feedstream may also contain a second silicon source which is a high p-xylene selectivating agent. The invention also includes the modification method and the shape selective catalyst which results from the modification.
Process For The Catalytic Disproportionation Of Toluene
Robert P. L. Absil - W. Deptford NJ Scott Han - Lawrenceville NJ David O. Marler - Deptford NJ David S. Shihabi - Pennington NJ
Assignee:
Mobil Oil Corp. - New York NY
International Classification:
C07C 552
US Classification:
585475
Abstract:
A process is provided for the disproportionation of toluene which comprises contacting toluene under disproportionation conditions with a catalyst comprising a particular synthetic porous crystalline molecular sieve.
Yung F. Chu - Plainsboro NJ David O. Marler - Deptford NJ John P. McWilliams - Woodbury NJ
Assignee:
Mobil Oil Corporation - Fairfax VA
International Classification:
C07C 266
US Classification:
585467
Abstract:
Alkylation of aromatics, e. g. ethylbenzene preparation, with minimized o-xylene make by contacting with olefin alkylating agent in the presence of ZSM-5 crystals having a diffusion rate constant of at least about 100 sec. sup. -1. times. 10. sup. -6 and an alpha value of less than about 100 prepared from a non-organic forming mixture comprising a silica source of precipitated silica having a particle size of 1 to 500 microns.
Florida Hospital North Pinellas Womens Center 1395 S Pinellas Ave FL 8, Tarpon Springs, FL 34689 727-942-5152 (phone), 727-942-5153 (fax)
Education:
Medical School University of South Florida College of Medicine at Tampa Graduated: 1996
Procedures:
Bladder Repair D & C Dilation and Curettage Myomectomy Ovarian Surgery Vaccine Administration Vaginal Repair Cesarean Section (C-Section) Colposcopy Cystoscopy Delivery After Previous Caesarean Section Electrocardiogram (EKG or ECG) Hysterectomy Oophorectomy Skin Tags Removal Tubal Surgery Vaginal Delivery
Conditions:
Abnormal Vaginal Bleeding Breast Disorders Candidiasis of Vulva and Vagina Complicating Pregnancy or Childbirth Conditions of Pregnancy and Delivery
Languages:
English Spanish
Description:
Dr. Marler graduated from the University of South Florida College of Medicine at Tampa in 1996. He works in Tarpon Springs, FL and specializes in Obstetrics & Gynecology. Dr. Marler is affiliated with Florida Hospital Carrollwood, Florida Hospital Celebration Health and Florida Hospital North Pinellas.
Googleplus
David Marler
Lived:
Houston, TX Tullahoma Miami, FL Ft Wayne, IN Boston, MA
Duluth, GeorgiaBusiness Development Manager - The Home Depot at C... Married to Brittany Raines Marler. We have a son, Landon, who is 20 months. We live in Duluth, Georgia and I am employed with Central Garden and Pet and... Married to Brittany Raines Marler. We have a son, Landon, who is 20 months. We live in Duluth, Georgia and I am employed with Central Garden and Pet and manage Controls, Fertilizers, Landscape, Vendor Partner, HD.com, and Grills for the Home Depot Business Development Team.