Robert L Seiver

US Patent:

43942822, Jul 19, 1983

Filed:

Sep 22, 1982

Appl. No.:

6/421046

Inventors:

Robert L. Seiver - Baton Rouge LA

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

B01J 2100
B01J 2300
B01J 3502

US Classification:

252 6255

Abstract:

Novel compositions, and process for the operation of a magnetically stabilized fluidized bed. The compositions are characterized as a particulate material which can be oriented within, and formed into a magnetically stabilized fluidized bed which comprises: (i) particles of average size ranging from about 10 micrometers (. mu. m) to about 4000. mu. m, preferably from about 50. mu. m to about 500. mu. m, each containing a nonferromagnetic component, or components, and preferably a catalytically active component, or components, composited with a single elongate ferromagnetic component, the ferromagnetic component being multidomain, having dimensions of at least 1. mu. m in all directions and a length:diameter (L/D) ratio of at least 2 but not more than 17. 3, said ferromagnetic component being present in the composite particles as inclusions within a nonferromagnetic matrix constituting at least 0. 5%, preferably at least 5%, but not more than 3/2(L/D). sup.

US Patent:

43671535, Jan 4, 1983

Filed:

Dec 19, 1980

Appl. No.:

6/218086

Inventors:

Robert L. Seiver - Baton Rouge LA
Martin O. Gernand - Baton Rouge LA

Assignee:

Exxon Research And Engineering Co. - Florham Park NJ

International Classification:

B01J 2104
B01J 3502

US Classification:

252 6255

Abstract:

A composition which exhibits high induced magnetism in a small applied magnetic field when formed into a magnetically stabilized fluidized bed and which comprises particles containing a nonferromagnetic component, or components, composited with a plurality of elongated ferromagnetic components, randomly oriented and present in each of said particles in relatively low concentration, based on the total volume of the particles; a process for formation of said compositions and a process wherein such composite particles are formed into a magnetically stabilized fluidized bed and contacted with a fluid, preferably gas.

US Patent:

45444811, Oct 1, 1985

Filed:

Nov 14, 1983

Appl. No.:

6/551595

Inventors:

Robert L. Seiver - Baton Rouge LA
Russell R. Chianelli - Sommerville NJ

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

C10G 4504
C10G 4508

US Classification:

208215

Abstract:

A supported carbon-containing molybdenum sulfide and tungsten sulfide catalyst useful for conducting methanation and hydrotreating reactions, principally the latter, can be formed by compositing a preselected quantity of a porous, refractory inorganic oxide with a complex salt characterized by the formula B. sub. x [MO. sub. y S. sub. 4-y ] where B is an organo or hydrocarbyl substituted diammonium ion, an organo or hydrocarbyl substituted ammonium ion or quaternary ammonium ion, or an ionic form of a cyclic amine containing one or more basic N atoms, x is 1 where B is an organo or hydrocarbyl substituted diammonium ion, or 2 where B is an organo or hydrocarbyl substituted ammonium or quaternary ammonium ion or an ionic form of a cyclic amine containing one or more basic N atoms, M is molybdenum or tungsten, and y is 0, or a fraction or whole number ranging up to 3, and heat decomposing the salt of said catalyst precursor composite in the presence of hydrogen, hydrocarbon and sulfur to form said supported carbon-containing molybdenum sulfide or tungsten sulfide catalyst.

US Patent:

44578369, Jul 3, 1984

Filed:

May 13, 1983

Appl. No.:

6/494539

Inventors:

Robert L. Seiver - Baton Rouge LA
Charles Rebick - Annandale NJ
Duane A. Goetsch - Baton Rouge LA

Assignee:

Exxon Research and Engineering Company - Florham Park NJ

International Classification:

C10G 4504

US Classification:

208254H

Abstract:

A process for selectively removing nitrogen from petroleum distillate feedstocks, notably lube oil distillates or lube base stocks without significant desulfurization of said petroleum distillate feedstocks, especially lube oil distillates or lube base stocks, while hydrotreating the oil to improve odor, color, improve stability, and the like. In accordance therewith, a supported, non (metal-promoted) carbon-containing molybdenum sulfide HDN/HDS selective hydrotreating catalyst is formed from a precursor composite made by compositing a preselected quantity of a porous, refractory inorganic oxide with a complex salt characterized by the formula B. sub. x [MoO. sub. y S. sub. 4-y ] where B is (a) an alkyl substituted diammonium ion, or (2) an alkyl substituted ammonium ion or quaternary ammonium ion; x is 1 where B is an alkyl substituted diammonium ion, or 2 where B is an alkyl substituted ammonium or quaternary ammonium ion; and y is 0, or a fraction or whole number ranging up to 3. The supported, non (metal-promoted) carbon-containing molybdenum sulfide HDN/HDS selective lube oil hydrotreating catalyst is then formed from the precursor composite by heating said composite, and heat decomposing the salt of said catalyst precursor composite in the presence of hydrogen, hydrocarbon and sulfur.

US Patent:

45419205, Sep 17, 1985

Filed:

Apr 18, 1983

Appl. No.:

6/485638

Inventors:

Robert L. Seiver - Baton Rouge LA

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

C10G 35085
C10G 4562

US Classification:

208138

Abstract:

A catalytic reforming process for the operation of a magnetically stabilized fluidized bed. The process utilizes catalyst compositions characterized as a particulate material which can be oriented within, and formed into a magnetically stabilized fluidized bed which comprises: (i) particles of average size ranging from about 10 micrometers (. mu. m) to about 4000. mu. m, each containing a nonferromagnetic component and a catalytically active component composited with a single elongate ferromagnetic component or plurality of parallelly aligned elongate ferromagnetic components. The ferromagnetic component, or components, are multidomain, having dimensions of at least 1. mu. m in all directions and a length:diameter (L/D) ratio of at least 2 but not more than 17. 3, and the ferromagnetic component, or components, is present in the composite particles as inclusions within a nonferromagnetic matrix constituting at least 0. 5%, preferably at least 5%, but not more than 3/2(L/D). sup.

US Patent:

45404828, Sep 10, 1985

Filed:

Nov 14, 1983

Appl. No.:

6/551675

Inventors:

Robert L. Seiver - Baton Rouge LA
Russell R. Chianelli - Sommerville NJ

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

C10G 4504
C10G 4508

US Classification:

208215

Abstract:

A supported carbon-containing molybdenum sulfide and tungsten sulfide catalyst useful for conducting methanation and hydrotreating reactions, principally the latter, can be formed by compositing a preselected quantity of a porous, refractory inorganic oxide with a complex salt characterized by the formula B. sub. x [MO. sub. y S. sub. 4-y ] where B is an organo or hydrocarbyl substituted diammonium ion, an organo or hydrocarbyl substituted ammonium ion or quaternary ammonium ion, or an ionic form of a cyclic amine containing one or more basic N atoms, x is 1 where B is an organo or hydrocarbyl substituted diammonium ion, or 2 where B is an organo or hydrocarbyl substituted ammonium or quaternary ammonium ion or an ionic form of a cyclic amine containing one or more basic N atoms, M is molybdenum or tungsten, and y is 0, or a fraction or whole number ranging up to 3, and heat decomposing the salt of said catalyst precursor composite in the presence of hydrogen sulfide and hydrogen to form said supported carbon-containing molybdenum sulfide or tungsten sulfide catalyst.

US Patent:

43990479, Aug 16, 1983

Filed:

Sep 22, 1982

Appl. No.:

6/421040

Inventors:

Robert L. Seiver - Baton Rouge LA
Martin O. Gernand - Baton Rouge LA

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

B01J 2104
B01J 3502

US Classification:

252 6255

Abstract:

A composition which exhibits high induced magnetism in a small applied magnetic field when formed into a magnetically stabilized fluidized bed and which comprises particles containing a nonferromagnetic component, or components, composited with a plurality of elongated ferromagnetic components, randomly oriented and present in each of said particles in relatively low concentration, based on the total volume of the particles; a process for formation of said compositions and a process wherein such composite particles are formed into a magnetically stabilized fluidized bed and contacted with a fluid, preferably gas.

US Patent:

44304439, Feb 7, 1984

Filed:

Jul 20, 1982

Appl. No.:

6/400005

Inventors:

Robert L. Seiver - Baton Rouge LA
Russell R. Chianelli - Sommerville NJ

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

B01J 2702
B01J 3112
B01J 2724
B01J 2720

US Classification:

502220

Abstract:

A supported carbon-containing molybdenum sulfide and tungsten sulfide catalyst useful for conducting methanation and hydrotreating reactions, principally the latter, can be formed by compositing a preselected quantity of a porous, refractory inorganic oxide with a complex salt characterized by the formula B. sub. x [MO. sub. y S. sub. 4-y ] where B is an organo or hydrocarbyl substituted diammonium ion, an organo or hydrocarbyl substituted ammonium ion or quaternary ammonium ion, or an ionic form of a cyclic amine containing one or more basic N atoms, x is 1 where B is an organo or hydrocarbyl substituted diammonium ion, or 2 where B is an organo or hydrocarbyl substituted ammonium or quaternary ammonium ion or an ionic form of a cyclic amine containing one or more basic N atoms, M is molybdenum or tungsten, and y is 0, or a fraction or whole number ranging up to 3, and heat decomposing the salt of said catalyst precursor composite in the presence of hydrogen sulfide and hydrogen to form said supported carbon-containing molybdenum sulfide or tungsten sulfide catalyst.