Patents by Inventor Hima Bindu DOOSA
Hima Bindu DOOSA 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).
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Patent number: 11873276Abstract: The present invention discloses process and apparatus for the production of light olefins from their respective alkanes by catalytic dehydrogenation, where in the dehydrogenation reaction is carried out in multiple semi-continuously operated fluidized bed isothermal reactors, connected to a common regenerator and wherein the process is carried out in a sequence of steps in each cycle i.e., entry of hot regenerated catalyst, pre-treatment with reducing gas, dehydrogenation reaction, stripping, transfer of catalyst to regenerator and catalyst regeneration. Process cycle in each reactor starts at different times such that the catalyst inventory in the regenerator is invariable with time.Type: GrantFiled: September 16, 2021Date of Patent: January 16, 2024Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Hima Bindu Doosa, Saravanan Subramani, Ram Mohan Thakur, Vineeth Venu Nath, Kumaresan Loganathan, Bineesh Kanattukara Vijayan, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Patent number: 11642656Abstract: The present invention provides a catalyst composition for the production of olefins from lighter alkanes by oxidative dehydrogenation route and methods of making the dehydrogenation catalyst composites.Type: GrantFiled: January 4, 2021Date of Patent: May 9, 2023Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Kumaresan Loganathan, Arumugam Velayutham Karthikeyani, Hima Bindu Doosa, Ram Mohan Thakur, Alex Cheru Pulikottil, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Patent number: 11548839Abstract: As part of an integrated oxidative alkane dehydrogenation and hydrogen generation process, carbon dioxide from Pressure Swing Adsorption (PSA) off gas stream of Hydrogen Generation Unit (HGU), and alkane from any known source are sent to oxidative dehydrogenation (ODH) unit for producing high value olefins, such as ethylene, propylene and butenes. Products formed from ODH reactor are separated and the stream comprising of hydrogen, carbon monoxide and methane are recycled to Shift reactor of HGU unit for enhanced production of hydrogen at PSA.Type: GrantFiled: September 17, 2021Date of Patent: January 10, 2023Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Vineeth Venu Nath, Hima Bindu Doosa, Ram Mohan Thakur, Saravanan Subramani, Sahithi Ravuluri, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Publication number: 20220081373Abstract: The present invention discloses process and apparatus for the production of light olefins from their respective alkanes by catalytic dehydrogenation, where in the dehydrogenation reaction is carried out in multiple semi-continuously operated fluidized bed isothermal reactors, connected to a common regenerator and wherein the process is carried out in a sequence of steps in each cycle i.e., entry of hot regenerated catalyst, pre-treatment with reducing gas, dehydrogenation reaction, stripping, transfer of catalyst to regenerator and catalyst regeneration. Process cycle in each reactor starts at different times such that the catalyst inventory in the regenerator is invariable with time.Type: ApplicationFiled: September 16, 2021Publication date: March 17, 2022Inventors: Hima Bindu DOOSA, Saravanan SUBRAMANI, Ram Mohan THAKUR, Vineeth Venu NATH, Kumaresan LOGANATHAN, Bineesh KANATTUKARA VIJAYAN, Madhusudan SAU, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20220081375Abstract: As part of an integrated oxidative alkane dehydrogenation and hydrogen generation process, carbon dioxide from Pressure Swing Adsorption (PSA) off gas stream of Hydrogen Generation Unit (HGU), and alkane from any known source are sent to oxidative dehydrogenation (ODH) unit for producing high value olefins, such as ethylene, propylene and butenes. Products formed from ODH reactor are separated and the stream comprising of hydrogen, carbon monoxide and methane are recycled to Shift reactor of HGU unit for enhanced production of hydrogen at PSA.Type: ApplicationFiled: September 17, 2021Publication date: March 17, 2022Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Vineeth Venu NATH, Hima Bindu DOOSA, Ram Mohan THAKUR, Saravanan SUBRAMANI, Sahithi RAVULURI, Madhusudan SAU, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20210205789Abstract: The present invention provides a catalyst composition for the production of olefins from lighter alkanes by oxidative dehydrogenation route and methods of making the dehydrogenation catalyst composites.Type: ApplicationFiled: January 4, 2021Publication date: July 8, 2021Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Kumaresan LOGANATHAN, Arumugam Velayutham KARTHIKEYANI, Hima Bindu DOOSA, Ram Mohan THAKUR, Alex Cheru PULIKOTTIL, Madhusudan SAU, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20210154635Abstract: The present disclosure relates to circulating fluidized bed apparatuses for dehydrogenation of alkanes to alkenes with higher yield and selectivity. The apparatus includes a riser-type reactor, a separator section, a regenerator and a withdrawal well disposed downstream to the regenerator. The apparatus includes a transfer line to receive hot regenerated catalyst free of oxygen from the withdrawal well, and to pre-treat the catalyst with a reducing gas to regulate-oxidation state of metals on the catalyst before reintroducing the catalyst to the riser-type reactor. The transfer line is formed in an elongated U-shaped pipe such that the oxidation state of the metals on the catalyst is regulated by the time the pre-treated catalyst reaches the bottom of the riser-type reactor.Type: ApplicationFiled: September 28, 2020Publication date: May 27, 2021Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Hima Bindu DOOSA, Ram Mohan THAKUR, Vineeth Venu NATH, Sadhullah MUKTHIYAR, Madhusudan SAU, Debasis BHATTACHARYYA, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Patent number: 11000843Abstract: The present invention relates to preparation of catalyst for production of olefinic hydrocarbons by dehydrogenation of their corresponding paraffins, particularly propylene from propane, comprising a metal oxide or combination of metal oxides utilizing spent catalyst from Fluid Catalytic Cracking (FCC)/Resid Fluid Catalytic Cracking (RFCC) processes. The metal oxides are possibly from transition metal group, particularly from groups VB, VIB, VIII, and Lanthanide series, and at least one metal from alkali group. The catalyst support used is spent catalyst or modified spent catalyst or combination thereof. The said catalyst can be used for both non-oxidative Propane Dehydrogenation (PDH) and Oxidative Propane Dehydrogenation (OPDH) process in the presence of CO2.Type: GrantFiled: January 30, 2019Date of Patent: May 11, 2021Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Hima Bindu Doosa, Ram Mohan Thakur, Vineeth Venu Nath, Eswar Prasad Dalai, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Patent number: 10947172Abstract: The invention discloses a novel method for preparation of highly active and selective dehydrogenation catalyst, comprising of metal oxide of group VIB elements of periodic table, and at least one metal oxide from group IA and/or group VIII, supported on alumina or silica or mixture thereof, wherein the accessibility to active sites and dispersion of metal oxides is enhanced by the addition of carbonaceous material such as coke derived from coal or petroleum coke or any other form of carbon, during catalyst preparation and its combustion thereof during calcination.Type: GrantFiled: October 18, 2019Date of Patent: March 16, 2021Assignee: Indian Oil Corporation LimitedInventors: Ram Mohan Thakur, Hima Bindu Doosa, Kamlesh Gupta, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Publication number: 20200199043Abstract: The invention discloses a novel method for preparation of highly active and selective dehydrogenation catalyst, comprising of metal oxide of group VIB elements of periodic table, and at least one metal oxide from group IA and/or group VIII, supported on alumina or silica or mixture thereof, wherein the accessibility to active sites and dispersion of metal oxides is enhanced by the addition of carbonaceous material such as coke derived from coal or petroleum coke or any other form of carbon, during catalyst preparation and its combustion thereof during calcination.Type: ApplicationFiled: October 18, 2019Publication date: June 25, 2020Inventors: Ram Mohan Thakur, Hima Bindu Doosa, Kamlesh Gupta, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Patent number: 10654773Abstract: The present invention is related to an integrated process for enhancing the yields of propylene and other light olefins from Fluid catalytic cracking (FCC) process in combination with Oxidative propane dehydrogenation (OPDH) where in a hydrocarbon stream from Propylene recovery section consisting of propane predominantly, is converted to high value light olefins primarily C3 and C2 olefins by catalytic oxidative dehydrogenation using carbon dioxide from FCC flue gas exiting the regenerator. Several process configurations for the conversion of C3 and C4 alkanes to their respective alkenes separately or simultaneously by integrating with FCC are provided.Type: GrantFiled: October 30, 2018Date of Patent: May 19, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Hima Bindu Doosa, Ram Mohan Thakur, Vineeth Venu Nath, Kamlesh Gupta, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Publication number: 20190262821Abstract: The present invention relates to preparation of catalyst for production of olefinic hydrocarbons by dehydrogenation of their corresponding paraffins, particularly propylene from propane, comprising a metal oxide or combination of metal oxides utilizing spent catalyst from Fluid Catalytic Cracking (FCC)/Resid Fluid Catalytic Cracking (RFCC) processes. The metal oxides are possibly from transition metal group, particularly from groups VB, VIB, VIII, and Lanthanide series, and at least one metal from alkali group. The catalyst support used is spent catalyst or modified spent catalyst or combination thereof. The said catalyst can be used for both non-oxidative Propane Dehydrogenation (PDH) and Oxidative Propane Dehydrogenation (OPDH) process in the presence of CO2.Type: ApplicationFiled: January 30, 2019Publication date: August 29, 2019Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Hima Bindu DOOSA, Ram Mohan THAKUR, Vineeth Venu NATH, Eswar Prasad DALAI, Debasis BHATTACHARYYA, Sanjiv Kumar MAZUMDAR, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20190194092Abstract: The present invention is related to an integrated process for enhancing the yields of propylene and other light olefins from Fluid catalytic cracking (FCC) process in combination with Oxidative propane dehydrogenation (OPDH) where in a hydrocarbon stream from Propylene recovery section consisting of propane predominantly, is converted to high value light olefins primarily C3 and C2 olefins by catalytic oxidative dehydrogenation using carbon dioxide from FCC flue gas exiting the regenerator. Several process configurations for the conversion of C3 and C4 alkanes to their respective alkenes separately or simultaneously by integrating with FCC are provided.Type: ApplicationFiled: October 30, 2018Publication date: June 27, 2019Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Hima Bindu DOOSA, Ram Mohan THAKUR, Vineeth Venu NATH, Kamlesh GUPTA, Debasis BHATTACHARYYA, Sanjiv Kumar MAZUMDAR, Sankara Sri Venkata RAMAKUMAR