Patents by Inventor Alakananda Bhattacharyya

Alakananda Bhattacharyya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PROCESS FOR REMOVING METALS FROM TALLOW OIL
    Publication number: 20130158279
    Abstract: A process for removing a metal from a tallow feed includes contacting the tallow feed comprising the metal with a tallow oil-immiscible ionic liquid to produce a tallow oil and TALLOW-immiscible ionic liquid mixture, and separating the mixture to produce a tallow oil effluent having a reduced metal content relative to the tallow feed. The metals removed include iron, aluminum, calcium, magnesium, sodium, zinc, and potassium.
    Type: Application
    Filed: March 6, 2012
    Publication date: June 20, 2013
    Applicant: UOP LLC
    Inventors: Beckay J. Mezza, Alakananda Bhattacharyya, F. Stephen Lupton
  • Apparatus for the reduction of gasoline benzene content by alkylation with dilute ethylene
    Patent number: 8414851
    Abstract: The apparatus converts ethylene in a dilute ethylene stream and dilute benzene in an aromatic containing stream via alkylation to heavier hydrocarbons. The catalyst may be a zeolite such as UZM-8. The catalyst is resistant to feed impurities such as hydrogen sulfide, carbon oxides, and hydrogen and selectively converts benzene. At least 40 wt-% of the ethylene in the dilute ethylene stream and at least 20 wt-% of the benzene in the dilute benzene stream can be converted to heavier hydrocarbons.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: April 9, 2013
    Assignee: UOP LLC
    Inventors: Christopher P. Nicholas, Alakananda Bhattacharyya
  • Apparatus and process for treating a hydrocarbon stream
    Patent number: 8383538
    Abstract: One exemplary embodiment can be an apparatus for treating a hydrocarbon stream having one or more compounds with a boiling point of about 140° to about 450° C. The apparatus can include an extraction zone and a regeneration zone. The extraction zone can include at least one settler. Each settler can have a height and a length. Typically the length is greater than the height. Also, the settler can form a boot, which can be adapted to receive a feed at one end. The regeneration zone may include a regenerator for an ionic liquid. The regenerator can include a column adapted to provide a regenerated ionic liquid to the extraction zone.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: February 26, 2013
    Assignee: UOP LLC
    Inventors: Manuela Serban, Kurt M. Vanden Bussche, Alakananda Bhattacharyya, Luigi Laricchia, John P. Brady, David N. Myers
  • PROCESS FOR OXIDIZING ALKYL AROMATIC COMPOUNDS
    Publication number: 20130041175
    Abstract: A process for oxidizing an alkyl-aromatic compound is described. The process includes contacting the alkyl-aromatic compound, a solvent comprising an ionic liquid, a bromine source, a catalyst, and an oxidizing agent in a first reaction zone to produce a first product comprising a first mother liquor and at least one of an aromatic alcohol, an aromatic aldehyde, an aromatic ketone, and an aromatic carboxylic acid.
    Type: Application
    Filed: October 12, 2012
    Publication date: February 14, 2013
    Applicant: UOP LLC
    Inventors: Alakananda Bhattacharyya, Raymond Shih
  • Process for using catalyst with rapid formation of iron sulfide in slurry hydrocracking
    Patent number: 8277638
    Abstract: A process 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.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: October 2, 2012
    Assignee: UOP LLC
    Inventors: Alakananda Bhattacharyya, Beckay J. Mezza
  • APPARATUS AND PROCESS FOR TREATING A HYDROCARBON STREAM
    Publication number: 20120145528
    Abstract: One exemplary embodiment can be an apparatus for treating a hydrocarbon stream having one or more compounds with a boiling point of about 140° to about 450° C. The apparatus can include an extraction zone and a regeneration zone. The extraction zone can include at least one settler. Each settler can have a height and a length. Typically the length is greater than the height. Also, the settler can form a boot, which can be adapted to receive a feed at one end. The regeneration zone may include a regenerator for an ionic liquid. The regenerator can include a column adapted to provide a regenerated ionic liquid to the extraction zone.
    Type: Application
    Filed: February 17, 2012
    Publication date: June 14, 2012
    Applicant: UOP LLC
    Inventors: David Nathan Myers, Manuela Serban, Kurt Vanden Bussche, Alakananda Bhattacharyya, Luigi Laricchia, John Patrick Brady
  • PROCESS FOR DETERMINING PRESENCE OF MESOPHASE IN SLURRY HYDROCRACKING
    Publication number: 20120085680
    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 slurry hydrocracking reaction can be controlled by measuring the production of mesophase using X-ray diffraction. Upon a mesophase yield fraction reaching a predetermined level, reaction conditions should be moderated to avoid excessive coke production.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Applicant: UOP LLC
    Inventors: Beckay J. Mezza, Alakananda Bhattacharyya, Andrzej Z. Ringwelski
  • Apparatus and process for treating a hydrocarbon stream
    Patent number: 8127938
    Abstract: One exemplary embodiment can be an apparatus for treating a hydrocarbon stream having one or more compounds with a boiling point of about 140-about 450° C. The apparatus can include an extraction zone and a regeneration zone. The extraction zone can include at least one settler. Each settler can have a height and a length. Typically the length is greater than the height. Also, the settler can form a boot, which can be adapted to receive a feed at one end. The regeneration zone may include a regenerator for an ionic liquid. The regenerator can include a column adapted to provide a regenerated ionic liquid to the extraction zone.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: March 6, 2012
    Assignee: UOP LLC
    Inventors: David Nathan Myers, Manuela Serban, Kurt M. Vanden Bussche, Alakananda Bhattacharyya, Luigi Laricchia, John Patrick Brady
  • Process for using catalyst with nanometer crystallites in slurry hydrocracking
    Patent number: 8128810
    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.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: March 6, 2012
    Assignee: UOP LLC
    Inventors: Alakananda Bhattacharyya, Beckay J. Mezza
  • Process for using iron oxide and alumina catalyst for slurry hydrocracking
    Patent number: 8123933
    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 and alumina catalyst does not require as much iron content relative to non-gaseous material in the reactor to obtain useable products.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: February 28, 2012
    Assignee: UOP LLC
    Inventors: Alakananda Bhattacharyya, Beckay J. Mezza
  • PROCESS FOR PRODUCING TEREPHTHALIC ACID
    Publication number: 20120004450
    Abstract: A solid terephthalic acid composition and a process for producing terephthalic acid from para-xylene. The process comprises forming a mixture comprising the para-xylene, a solvent, a bromine source, and a catalyst; and oxidizing the para-xylene by contacting the mixture with an oxidizing agent at oxidizing conditions to produce a solid oxidation product comprising terephthalic acid, para-toluic acid, 4-carboxybenzaldehyde. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms and an dialkyl imidazolium ionic liquid; and the catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium. The solid terephthalic acid composition comprises, less than about 4,000 ppm-wt 4-carboxybenzaldehyde content, and more than about 2,000 ppm-wt a para-toluic acid.
    Type: Application
    Filed: June 8, 2011
    Publication date: January 5, 2012
    Applicants: Boreskov Institute of Catalysis, UOP LLC
    Inventors: Alakananda Bhattacharyya, Joseph A. Kocal, Joel T. Walenga, Nikolay Y. Adonin, Nina I. Kuznetsova, Bair S. Bal'zhinimaev
  • MIXTURES USED IN OXIDIZING ALKYL AROMATIC COMPOUNDS
    Publication number: 20120004454
    Abstract: A process and a mixture for oxidizing an alkyl-aromatic compound comprises forming a mixture comprising the alkyl-aromatic compound, a solvent, a bromine source, and a catalyst; and contacting the mixture with an oxidizing agent at oxidizing conditions to produce an oxidation product comprising at least one of an aromatic aldehyde, an aromatic alcohol, an aromatic ketone, and an aromatic carboxylic acid. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms and an ionic liquid selected from the group consisting of an imidazolium ionic liquid, a pyridinium ionic liquid, a phosphonium ionic liquid, a tetra alkyl ammonium ionic liquid, and combinations thereof. The catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium.
    Type: Application
    Filed: June 8, 2011
    Publication date: January 5, 2012
    Applicants: Boreskov Institute of Catalysis, UOP LLC
    Inventors: Alakananda Bhattacharyya, Joseph A. Kocal, Joel T. Walenga, Nikolay Y. Adonin, Nina I. Kuznetsova, Bair S. Bal'zhinimaev
  • PROCESS FOR PURIFYING TEREPHTHALIC ACID
    Publication number: 20120004456
    Abstract: A process for purifying crude terephthalic acid comprising a contaminant at a first concentration, the process comprising contacting the crude terephthalic acid with a solvent comprising an ionic liquid at purifying conditions to produce a solid terephthalic acid product having a second concentration of the contaminant lower than the first concentration.
    Type: Application
    Filed: June 8, 2011
    Publication date: January 5, 2012
    Applicant: UOP LLC
    Inventor: Alakananda Bhattacharyya
  • SOLID TEREPHTHALIC ACID COMPOSITION
    Publication number: 20120004455
    Abstract: A solid terephthalic acid composition and a process for producing terephthalic acid from para-xylene. The process comprises forming a mixture comprising the para-xylene, a solvent, a bromine source, and a catalyst; and oxidizing the para-xylene by contacting the mixture with an oxidizing agent at oxidizing conditions to produce a solid oxidation product comprising terephthalic acid, para-toluic acid, 4-carboxybenzaldehyde. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms and an dialkyl imidazolium ionic liquid; and the catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium. The solid terephthalic acid composition comprises, less than about 4,000 ppm-wt 4-carboxybenzaldehyde content, and more than about 2,000 ppm-wt a para-toluic acid.
    Type: Application
    Filed: June 8, 2011
    Publication date: January 5, 2012
    Applicants: Boreskov Institute of Catalysis, UOP LLC
    Inventors: Alakananda Bhattacharyya, Joseph A. Kocal, Joel T. Walenga, Nikolay Y. Adonin, Nina I. Kuznetsova, Bair S. Bal'zhinimaev
  • PROCESS FOR OXIDIZING ALKYL AROMATIC COMPOUNDS
    Publication number: 20120004449
    Abstract: A process and a mixture for oxidizing an alkyl-aromatic compound comprises forming a mixture comprising the alkyl-aromatic compound, a solvent, a bromine source, and a catalyst; and contacting the mixture with an oxidizing agent at oxidizing conditions to produce an oxidation product comprising at least one of an aromatic aldehyde, an aromatic alcohol, an aromatic ketone, and an aromatic carboxylic acid. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms and an ionic liquid selected from the group consisting of an imidazolium ionic liquid, a pyridinium ionic liquid, a phosphonium ionic liquid, a tetra alkyl ammonium ionic liquid, and combinations thereof. The catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium.
    Type: Application
    Filed: June 8, 2011
    Publication date: January 5, 2012
    Applicants: Boreskov Institute of Catalysis, UOP LLC
    Inventors: Alakananda Bhattacharyya, Joseph A. Kocal, Joel T. Walenga, Nikolay Y. Adonin, Nina L. Kuznetsova, Bair S. Bal'zhinimaev
  • PROCESS FOR OXIDIZING ALKYL AROMATIC COMPOUNDS
    Publication number: 20120004448
    Abstract: A process and a mixture for oxidizing an alkyl-aromatic compound comprises forming a mixture comprising the alkyl-aromatic compound, a solvent, a bromine source, a catalyst, and ammonium acetate; and contacting the mixture with an oxidizing agent at oxidizing conditions to produce an oxidation product comprising at least one of an aromatic aldehyde, an aromatic alcohol, an aromatic ketone, and an aromatic carboxylic acid. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms; and the catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium.
    Type: Application
    Filed: June 8, 2011
    Publication date: January 5, 2012
    Applicant: UOP LLC
    Inventors: Alakananda Bhattacharyya, Joel T. Walenga
  • PROCESS FOR PRODUCING TEREPHTHALIC ACID
    Publication number: 20120004451
    Abstract: A process for producing terephthalic acid from para-xylene. The process comprises forming a mixture comprising the para-xylene, a solvent, a bromine source, a catalyst, and ammonium acetate; and oxidizing the para-xylene by contacting the mixture with an oxidizing agent at oxidizing conditions to produce a solid oxidation product comprising terephthalic acid, para-toluic acid, 4-carboxybenzaldehyde. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms, and the catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium.
    Type: Application
    Filed: June 8, 2011
    Publication date: January 5, 2012
    Applicant: UOP LLC
    Inventors: Alakananda Bhattacharyya, Joel T. Walenga
  • PROCESS FOR USING CATALYST WITH RAPID FORMATION OF IRON SULFIDE IN SLURRY HYDROCRACKING
    Publication number: 20110308997
    Abstract: A process 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.
    Type: Application
    Filed: August 26, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: Alakananda Bhattacharyya, Beckay J. Mezza
  • PROCESS FOR THE REDUCTION OF GASOLINE BENZENE CONTENT BY ALKYLATION WITH DILUTE ETHYLENE
    Publication number: 20110306809
    Abstract: The process converts ethylene in a dilute ethylene stream and dilute benzene in an aromatic containing stream via alkylation to heavier hydrocarbons. The catalyst may be a zeolite such as UZM-8. The catalyst is resistant to feed impurities such as hydrogen sulfide, carbon oxides, and hydrogen and selectively converts benzene. At least 40 wt-% of the ethylene in the dilute ethylene stream and at least 20 wt-% of the benzene in the dilute benzene stream can be converted to heavier hydrocarbons.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 15, 2011
    Applicant: UOP LLC
    Inventors: Christopher P. Nicholas, Alakananda Bhattacharyya
  • PROCESS FOR USING SUPPORTED MOLYBDENUM CATALYST FOR SLURRY HYDROCRACKING
    Publication number: 20110303584
    Abstract: A process is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising molybdenum supported on a base, such as boehmite or pseudo-boehmite alumina. Iron oxide may also be in the base. The base is preferably bauxite. The heavy hydrocarbon slurry is hydrocracked in the presence of the catalyst to produce lighter hydrocarbons.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 15, 2011
    Applicant: UOP LLC
    Inventors: Alakananda Bhattacharyya, Beckay J. Mezza, Maureen L. Bricker, Lorenz J. Bauer