1
Charles H Mauldin: Cobalt catalysts for the conversion of methanol to hydrocarbons and for Fischer-Tropsch synthesis. Exxon Research and Engineering Co, Llewellyn A Proctor, February 4, 1986: US04568663 (112 worldwide citation)

A rhenium promoted cobalt catalyst, especially a rhenium and thoria promoted cobalt catalyst, and process for the conversion of methanol to hydrocarbons. Methanol is contacted, preferably with added hydrogen, over said catalyst, or synthesis gas is contacted over said catalyst to produce, at reactio ...


2
William C Behrmann, Kym B Arcuri, Charles H Mauldin: Surface supported cobalt catalysts, process utilizing these catalysts for the preparation of hydrocarbons from synthesis gas and process for the preparation of said catalysts. Exxon Research and Engineering Company, Jay Simon, Estelle C Bakun, August 13, 1996: US05545674 (68 worldwide citation)

A supported particulate cobalt catalyst is formed by dispersing cobalt, alone or with a metal promoter, particularly rhenium, as a thin catalytically active film upon a particulate support, especially a silica or titania support. This catalyst can be used to convert an admixture of carbon monoxide a ...


3
Charles H Mauldin, Stephen M Davis, Kym B Arcuri: Cobalt catalysts for the conversion of methanol and for Fischer-Tropsch synthesis to produce hydrocarbons. Exxon Research and Engineering Company, Llewellyn A Proctor, May 5, 1987: US04663305 (49 worldwide citation)

A zirconium, hafnium, cerium or uranium promoted cobalt catalyst and process for the conversion of methanol or synthesis gas to hydrocarbons. Methanol is contacted, preferably with added hydrogen, over said catalyst, or synthesis gas is contacted over said catalyst to produce, at reaction conditions ...


4
Virgil L Payne, Charles H Mauldin: Preparation of hydrocarbons from synthesis gas. Exxon Research and Engineering Co, Llewellyn A Proctor, June 17, 1986: US04595703 (49 worldwide citation)

A process wherein an admixture of carbon monoxide and hydrogen is contacted over a cobalt catalyst, especially a thoria promoted cobalt catalyst, formed by dispersing the cobalt, or cobalt and thoria, upon a titania or titania-containing support wherein the titania support is one having a rutile:ana ...


5
Charles H Mauldin, Kenneth L Riley: Process for the preparation of surface impregnated dispersed cobalt metal catalysts. Exxon Research and Engineering Company, Jay Simon, L A Proctor, December 11, 1990: US04977126 (41 worldwide citation)

A process for the preparation of catalysts wherein a catalytically effective amount of cobalt is impregnated and dispersed as a film, or layer, on the peripheral outer surface of a particulate porous inorganic oxide support, notably alumina, silica, silica-alumina and titania; particularly titania. ...


6
Larry E Pedrick, Charles H Mauldin, William C Behrmann: Draft tube for catalyst rejuvenation and distribution. Exxon Research & Engineering Company, Joseph J Allocca, December 7, 1993: US05268344 (35 worldwide citation)

Catalyst in a slurry phase reactor is rejuvenated and uniformly distributed in said reactor using a substantially vertical draft tube fully immersed in the slurry which utilizes a rejuvenating gas injected substantially near the bottom of the substantially vertical draft tube whereby catalyst near t ...


7
Virgil L Payne, Charles H Mauldin: Cobalt catalysts for the preparation of hydrocarbons from synthesis gas and from methanol. Exxon Research and Engineering Co, Llewellyn A Proctor, September 17, 1985: US04542122 (34 worldwide citation)

A cobalt catalyst, especially a thoria promoted cobalt catalyst, formed by dispersing the cobalt, or cobalt and thoria, upon a titania or titania-containing support wherein the titania support is one having a rutile:anatase ratio of at least about 2:3. By passing methanol, or an admixture of carbon ...


8
Stanislaw Plecha, Charles H Mauldin, Larry E Pedrick: Titania catalysts their preparation and use in fischer-tropsch synthesis. Exxon Research and Engineering Co, Jay Simon, September 12, 2000: US06117814 (31 worldwide citation)

Supports for Fischer-Tropsch catalysts with increased strength and attrition resistance are formed by incorporating both silica and alumina into a support comprised primarily of titania; whereupon Fischer-Tropsch active metals can be composited with the support; the catalysts being particularly usef ...


9
Charles H Mauldin, Kenneth L Riley: Titania-supported catalysts and their preparation for use in Fischer-Tropsch synthesis. Exxon Research and Engineering Company, Jay Simon, February 12, 1991: US04992406 (30 worldwide citation)

A process for the preparation of novel binder-containing titania supports, and catalyst compositions of improved porosity prepared from such supports, useful for Fischer-Tropsch synthesis. The supports are prepared by incorporating a small amount of an inorganic metal oxide binder, constituted of al ...


10
William C Behrmann, Charles H Mauldin, Larry E Pedrick: Hydrocarbon synthesis reactor employing vertical downcomer with gas disengaging means. Exxon Research & Engineering Co, Joseph J Allocca, January 17, 1995: US05382748 (28 worldwide citation)

The operation of a hydrocarbon synthesis reactor and catalyst distributed in the reaction slurry therein are improved by the presence in said reactor of one or more vertical downcomers open at both ends with gas disengaging areas located at their top end. The downcomer which circulates catalyst from ...



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