Alakananda A Bhattacharyya

Author:

Alakananda Bhattacharyya

ISBN #:

8171021123

US Patent:

6953488, Oct 11, 2005

Filed:

Mar 13, 2003

Appl. No.:

10/388154

Inventors:

Alakananda Bhattacharyya - Glen Ellyn IL, US
Wen-Dong Chang - Houston TX, US

Assignee:

BP Corporation North America Inc. - Warrenville IL

International Classification:

C01B003/32

US Classification:

481987, 481277, 481985, 502 80, 502 84, 502337, 423654, 422190, 422211

Abstract:

There is provided a process for preparation of synthesis gas from feedstocks containing methane and/or higher hydrocarbons having from about 2 to about 12 carbon atoms by an initial catalytic treatment of feedstock to provide a methane-containing gaseous mixture substantially free of compounds having 2 or more carbon atoms, and reforming the gaseous mixture at elevated temperatures using nickel-containing catalytic materials that are unusually active under mild conditions of conversion and resistant to deactivation. The process consists fundamentally in converting the higher hydrocarbon compounds to form the methane-containing gaseous mixture in an initial conversion zone containing a catalyst while controlling temperatures within the initial conversion zone to temperatures in a range downward from about 500 C. to about 300 C. , and reforming the methane-containing gaseous mixture in a subsequent zone to form synthesis gas.

US Patent:

7754910, Jul 13, 2010

Filed:

Jan 29, 2008

Appl. No.:

12/011954

Inventors:

Claus G. Lugmair - San Jose CA, US
Steven Alan Cohen - Naperville IL, US
Gerry W. Zajac - Warrenville IL, US
Alakananda Bhattacharyya - Glen Ellyn IL, US
Bhagya Chandra Sutradhar - Aurora IL, US

Assignee:

Ineos USA LLC - Lisle IL

International Classification:

C07B 43/08

US Classification:

558319

Abstract:

A process for the ammoxidation of a saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon to produce an unsaturated nitrile, said process comprising contacting the saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon with ammonia and an oxygen-containing gas in the presence of a catalyst composition comprising molybdenum, vanadium, antimony, niobium, tellurium, optionally at least one element select from the group consisting of titanium, tin, germanium, zirconium, hafnium, and optionally at least one lanthanide selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium. Such catalysts are characterized by very low levels of tellurium in the composition. Such catalyst compositions are effective for the gas-phase conversion of propane to acrylonitrile and isobutane to methacrylonitrile (via ammoxidation).

US Patent:

7759282, Jul 20, 2010

Filed:

Dec 4, 2008

Appl. No.:

12/328503

Inventors:

Manuela Serban - Glenview IL, US
Lisa M. King - Lake in the Hills IL, US
Alakananda Bhattacharyya - Glen Ellyn IL, US
Kurt M. Vanden Bussche - Lake in the Hills IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01J 23/00

US Classification:

502335, 502337

Abstract:

The present invention involves a process and materials for simultaneous desulfurization and water gas shift of a gaseous stream comprising contacting the gas stream with a nickel aluminate catalyst. The nickel aluminate catalyst is preferably selected from the group consisting of NiAlO, NiNiAlO, NiNiAlO, NiNiAlO, and intermediates thereof, wherein x≧0. 5 and 0. 01≦y≦2. Preferably, x is between 1 and 3. More preferably, the nickel containing compound further comprises NiAlOSwherein 0≦z≦2x.

US Patent:

7811474, Oct 12, 2010

Filed:

Dec 4, 2008

Appl. No.:

12/328501

Inventors:

Manuela Serban - Glenview IL, US
Lisa M. King - Westchester IL, US
Alakananda Bhattacharyya - Glen Ellyn IL, US
Kurt M. Vanden Bussche - Lake in the Hills IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01D 53/48
C01B 3/12
C01B 3/16

US Classification:

252373, 42324406, 4232441, 4234372, 423655, 423656

Abstract:

The present invention involves a process and materials for simultaneous desulfurization and water gas shift of a gaseous stream comprising contacting the gas stream with a nickel aluminate catalyst. The nickel aluminate catalyst is preferably selected from the group consisting of NiAlO, NiNiAlO, NiNiAlO, NiNiAlO, and intermediates thereof, wherein x≧0. 5 and 0. 01≦y≦2. Preferably, x is between 1 and 3. More preferably, the nickel containing compound further comprises NiAlOSwherein 0≦z≦2x.

US Patent:

7820135, Oct 26, 2010

Filed:

Jun 30, 2008

Appl. No.:

12/165197

Inventors:

Alakananda Bhattacharyya - Glen Ellyn IL, US
Beckay J. Mezza - Arlington Heights IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01J 27/043

US Classification:

4235611, 502222

Abstract:

A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising iron oxide and alumina to form a heavy hydrocarbon slurry and hydrocracked to produce lighter hydrocarbons. The iron sulfide crystallites have diameters in the nanometer range.

US Patent:

8017545, Sep 13, 2011

Filed:

Dec 4, 2008

Appl. No.:

12/328460

Inventors:

Alakananda Bhattacharyya - Glen Ellyn IL, US
Manuela Serban - Glenview IL, US
Kurt M. Vanden Bussche - Lake in the Hills IL, US
Lisa M. King - Lake in the Hills IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01D 53/56
B01D 53/86
B01J 8/00
B01J 27/02
B01J 27/043
B01J 23/00
C01B 7/00
C01B 31/20
C01B 3/12
C01B 3/16
C01B 3/18

US Classification:

502216, 502222, 502335, 502517, 502524, 42324406, 4232441, 4234372, 423655, 423656

Abstract:

The present invention relates to a method of making a chemical compound comprising nickel, aluminum, oxygen and sulfur having a general formula NiAlOS, wherein 0. 5≦x≦3 and 0≦z≦2x. The material is effective for the removal of S-compounds from gaseous streams, effective for catalyzing a water gas shift reaction and suppresses the formation of carbon monoxide and hydrogen under conditions where a water gas shift reaction is catalyzed.

US Patent:

8021620, Sep 20, 2011

Filed:

Mar 31, 2009

Appl. No.:

12/416032

Inventors:

Christopher P. Nicholas - Evanston IL, US
Alakananda Bhattacharyya - Glen Ellyn IL, US
David E. Mackowiak - Mount Prospect IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01J 19/00
F27B 15/00
B01J 8/02
B01J 35/02
C07C 2/02
C07C 2/56

US Classification:

422131, 422129, 422139, 422141, 422211, 585533, 585719

Abstract:

The process and apparatus converts ethylene in a dilute ethylene stream that may be derived from an FCC product to heavier hydrocarbons. The catalyst may be an amorphous silica-alumina base with a Group VIII and/or VIB metal. The catalyst is resistant to feed impurities such as hydrogen sulfide, carbon oxides, hydrogen and ammonia. At least 40 wt-% of the ethylene in the dilute ethylene stream can be converted to heavier hydrocarbons.

US Patent:

8025793, Sep 27, 2011

Filed:

Jun 30, 2008

Appl. No.:

12/165177

Inventors:

Alakananda Bhattacharyya - Des Plaines IL, US
Beckay J. Mezza - Des Plaines IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C10G 47/04

US Classification:

208244, 208208 R, 208295, 502400, 502406, 502414, 502415

Abstract:

A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising iron oxide and alumina to form a heavy hydrocarbon slurry and hydrocracked to produce lighter hydrocarbons. The iron oxide in the catalyst converts to catalytically active iron sulfide in the presence of hydrogen and sulfur.