Patents by Inventor Debasis Bhattacharyya

Debasis 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).

  • Patent number: 10808177
    Abstract: The present invention relates to delayed coking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilize a pre-cracking reactor and a reactor furnace for mild thermal cracking of the feedstock and an intermediate separator, before being subjected to higher severity thermal cracking treatment in a coker furnace and a coking drums, resulting in reduction in overall coke yield.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 20, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Satyen Kumar Das, Ponoly Ramachandran Pradeep, Terapalli Hari Venkata Devi Prasad, Arjun Kumar Kottakuna, Madhusudan Sau, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Publication number: 20200325407
    Abstract: The present invention relates to a process for production of anisotropic coke from a hydrocarbon feedstock and a system for producing the same. More particularly, the present invention relates to a thermal cracking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilizes a novel scheme for production of a premium quality coke from primarily, a clarified oil feedstock. Clarified oil from fluid catalytic cracking unit is routed through a process scheme comprising a separator column, hydro-treatment section and an aromatic extraction section to create an ad-mix of effluents which form the feedstock to a thermal cracking unit. Premium quality anisotropic coke is produced in the thermal cracker reactor drums under tailor made process conditions employing the said feedstock.
    Type: Application
    Filed: January 30, 2020
    Publication date: October 15, 2020
    Applicant: Indian Oil Corporation Limited
    Inventors: Terapalli Hari Venkata Devi PRASAD, Ponoly Ramachandran PRADEEP, Satyen Kumar DAS, Kamal KUMAR, Ramesh KARUMANCHI, Madhusudan SAU, Debasis BHATTACHARYYA, Sanjiv Kumar MAZUMDAR, Sankara Sri Venkata RAMAKUMAR
  • Publication number: 20200199043
    Abstract: 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: Application
    Filed: October 18, 2019
    Publication date: June 25, 2020
    Inventors: Ram Mohan Thakur, Hima Bindu Doosa, Kamlesh Gupta, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10676675
    Abstract: An apparatus for supplying additives into a coker drum includes an inlet for supplying a hydrocarbon feed stream into the coker drum and conduits along the circumference of walls of the coker drum. Each conduit has an injection nozzle to supply additives inside the coker drum. An injection control system controls the operation of the injection nozzles such that 1) one or more of the injection nozzles placed within a first distance above a vapour liquid interphase of the hydrocarbon feed stream are configured to supply the additives; and 2) supply of the additive discontinues from a particular injection nozzle when a distance between the injection nozzle and the vapour liquid interphase is less than or equal to a second distance. The apparatus optionally includes a mechanical drive system moving at least one of the conduits based on the level of the vapour liquid interphase in the coker drum.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: June 9, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Ram Mohan Thakur, Pradeep Ponoly Ramachandran, Terapalli Hari Venkata Devi Prasad, Gautam Thapa, Debasis Bhattacharyya, Brijesh Kumar, Santanam Rajagopal
  • Patent number: 10676678
    Abstract: The present invention relates to crude oil processing, particularly related to conversion of crude oil containing high amount of naphthenic acid compounds to lighter hydrocarbon materials with minimum capital expenditure. The invented process utilizes a novel scheme for high TAN crude oils by employing thermal cracking process to maximize the residue conversion to valuable products, which require minimum modifications in unit metallurgies and corrosion inhibitor injection schemes in refineries.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: June 9, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Ponoly Ramachandran Pradeep, Satyen Kumar Das, Terapalli Hari Venkata Devi Prasad, Arjun Kumar Kottakuna, Rajesh, Kashyapkumar Mahendra Pastagia, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10662385
    Abstract: The present invention relates to delayed coking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilize a pre-cracking reactor for mild thermal cracking of the feedstock and an intermediate separator, before being subjected to higher severity thermal cracking in delayed coking process, resulting in reduction in overall coke yield.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: May 26, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Brijesh Kumar, Satyen Kumar Das, Ponoly Ramachandran Pradeep, Terapalli Hari Venkata Devi Prasad, Bandaru Venkata Hariprasadgupta, Jagdev Kumar Dixit, Rajesh, Gautam Thapa, Debasis Bhattacharyya, Biswapriya Das
  • Patent number: 10654773
    Abstract: 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: Grant
    Filed: October 30, 2018
    Date of Patent: May 19, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Hima Bindu Doosa, Ram Mohan Thakur, Vineeth Venu Nath, Kamlesh Gupta, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10655076
    Abstract: The present invention relates to an assorted co-staging and counter stage hydro-treating process configuration scheme is disclosed for deep desulfurization and deep hydro-treating of diesel range hydrocarbons for obtaining diesel product having product sulfur less than 10 ppm and cetane number more than 51.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 19, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Mainak Sarkar, Darshankumar Manubhai Dave, Ganesh Vitthalrao Butley, Ramesh Karumanchi, Arun Arangarasu, Sarvesh Kumar, Madhusudan Sau, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10646863
    Abstract: A spent catalyst distributor for distributing spent catalyst in a catalyst regenerator vessel housing a dense phase catalyst bed and a dilute phase catalyst bed. The spent catalyst distributor comprises a conduit comprising a proximal end and a distal end. The conduit projects horizontally or horizontally and downwardly into the regenerator vessel and includes an opening located at the distal end for introducing the spent catalyst at a first location inside the regenerator vessel. The conduit further includes a plurality of orifices located along a length of the conduit between the distal end and an inner wall of the regenerator vessel for introducing the spent catalyst at a plurality of locations inside the regenerator vessel.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 12, 2020
    Assignee: Indian Oil Corporation Limited
    Inventors: Shoeb Hussain Khan, Vikas Badhan, Venkata Hari Prasad Gupta Bandaru, Gautam Thapa, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Sankara Sri Venkata Ramakumar
  • Patent number: 10647930
    Abstract: The present invention relates to a hydrocracking reactor system and a process utilizing the same for upgrading heavy hydrocarbonaceous material to value-added products. Accordingly, an aspect of the present invention includes dispersing a liquid feedstock pre-mixed with a catalyst from top of a reactor vessel to obtain dispersed droplets having a predetermined droplet size less than 500 ?m, introducing a gaseous feed comprising primarily of hydrogen from bottom of the reactor vessel to form a continuous gaseous phase throughout a cross-section of the reactor vessel, and allowing the dispersed droplets to contact the continuous gaseous phase throughout the cross-section of the reactor vessel to form reaction effluent comprising one or more lighter product hydrocarbons. The method may further include removing at least a top portion and at least a bottom portion of the reaction effluent from the reactor vessel.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: May 12, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Mainak Sarkar, Darshankumar Manubhai Dave, Ramesh Karumanchi, Madhusudan Sau, Ganesh Vitthalrao Butley, Nepal Vishwakarma, Kamal Kumar, Pravesh Kumar, Sarvesh Kumar, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10590354
    Abstract: The present invention relates to a process and system for complete conversion of crude oils by integrating delayed coking process, high severity catalytic cracking process and naphtha cracking processes along with olefin recovery section, aromatic recovery section and gasifier section to maximize the crude oil conversion to valuable products like light olefins, aromatics and chemicals.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: March 17, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Ponoly Ramachandran Pradeep, Arjun Kumar Kottakuna, Terapalli Hari Venkata Devi Prasad, Satyen Kumar Das, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Publication number: 20200080006
    Abstract: The present invention provides a process for a production of light olefins and aromatics from cracked light naphtha by selective cracking. The present invention thus provides a process for up grading cracked olefinic naphtha to high value petrochemical feed stocks. This process is based on catalytic cracking in which the catalyst activity is optimized by depositing coke for production of light olefins and aromatics. The proposed process has high flexibility and can be operated either in maximizing olefins as reflected from the PIE ratio or in maximizing aromatics (BTX) at different modes of operation depending upon the product requirement.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 12, 2020
    Inventors: Subramani SARAVANAN, Bandaru Venkata HARI PRASADGUPTA, Prosenjit MAJI, Shoeb Hussain KHAN, Jagdev Kumar DIXIT, Shakti SINGH, Reshmi MANNA, Madhusudan SAU, Debasis BHATTACHARYYA, Sanjiv Kumar MAZUMDAR, Sankara Sri Venkata RAMAKUMAR
  • Patent number: 10584290
    Abstract: The present invention relates to resid processing, particularly related to conversion of resid material with maximum recovery of lighter hydrocarbons. The invented process utilizes a novel scheme for integration of solvent de-asphalting and delayed coking processes to maximize the residue conversion to valuable products, with cleaner quality of middle distillates and fuel oil products, in comparison with other integrated solvent de-asphalting and delayed coking schemes. This process also has an additional flexibility to vary the recycle quantity, without impacting fractionator operation of the delayed coking section, which further enhances the product recovery and achieves maximum conversion of the resid feedstock, with minimum impact on liquid product properties.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: March 10, 2020
    Assignee: Indian Oil Corporation Limited
    Inventors: Ponoly Ramachandran Pradeep, Satyen Kumar Das, Terapalli Hari Venkata Devi Prasad, Arjun Kumar Kottakuna, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10584085
    Abstract: The present invention relates to a process for etherification of mixed olefinic light naphtha boiling in the range of C5-90° C. cut with simultaneous minimization of unreacted methanol concentration in the product. The etherification of mixed olefinic light naphtha produces the high octane blending component which can be blended directly in the gasoline pool without any recovery of the feed oxygenates like methanol, ethanol etc. which conventionally uses energy intensive separation processes.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: March 10, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Saravanan Subramani, Prosenjit Maji, Reshmi Manna, Pushkar Varshney, Latoor Lal Saroya, Kamlesh Gupta, Dheer Singh, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10578304
    Abstract: An apparatus and a method for achieving progressive reduction of flue gas is disclosed. Accordingly, an aspect of the present invention is to provide an apparatus comprising of an orifice chamber having an inlet pipe for receiving the flue gas, a flow region defined downstream of an exit of the inlet pipe and having at least a first section and a second section, and an outlet pipe to disperse a pressure reduced flue gas. The first section defined downstream of the inlet pipe has a flow developer means and at least one auxiliary orifice plate. The second section defined downstream of the first section has a plurality of orifice plates spaced apart along a flow length of the second section.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: March 3, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Saidulu Gadari, Manoj Kumar Yadav, Shoeb Hussain Khan, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Sankara Sri Venkata Ramakumar
  • Patent number: 10526202
    Abstract: The present invention relates to a process for the production of high quality synthesis gas rich in hydrogen during the process of upgrading the residual hydrocarbon oil feedstock by rejuvenating the spent upgrading material in Reformer in absence of air/oxygen without supplying external heat source other than the heat generated inside the process during combustion of residual coke deposited on the upgrading material. The present invention further relates to the apparatus used for preparation of syngas wherein said syngas thus produced is used for production of hydrogen gas. Furthermore, the present invention also provides system and method for preparing pure hydrogen from syngas.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: January 7, 2020
    Assignee: Indian Oil Corporation Limited
    Inventors: Sadhullah Mukthiyar, Sayapaneni Gopinath Bhanuprasad, Gadari Saidulu, Eswar Prasad Dalai, Sanjeev Singh, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Brijesh Kumar, Biswapriya Das
  • Publication number: 20190382662
    Abstract: The present invention relates to a novel process with lower recycle ratio while eliminating the need for quench column for production of superior quality coke conforming to specifications of anode grade coke. The process of the present invention enables production of lower amounts of coke and fuel oil yields.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 19, 2019
    Inventors: Satyen Kumar DAS, Terapalli Hari Venkata Devi Prasad, Ponoly Ramachandran Pradeep, Arjun Kumar Kottakuna, Madhusudan Sau, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10501692
    Abstract: The present subject matter describes a method and apparatus for operating a delayed coker. The method comprises contacting a vapour produced in a delayed coker-drum with a catalyst maintained in form of a bed, and maintaining a level of said catalyst-bed within pre-defined limits during catalytic-cracking of the vapour. Thereafter, the cracked-vapour is routed to a coker-fractionator column to trigger conversion into one or more hydrocarbon products.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: December 10, 2019
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Terapalli Hari Venkata Devi Prasad, Ponoly Ramachandran Pradeep, Satyen Kumar Das, Jagdev Kumar Dixit, Rajesh, Gautam Thapa, Debasis Bhattacharyya, Sankara Sri Venkata Ramakumar, Biswapriya Das
  • Patent number: 10487279
    Abstract: The present invention relates to a process of increasing syngas production during an upgradation process of petroleum residual oil by circulation of rejuvenated upgrading material through a heat removal zone such as an Auxiliary Reformer and by regeneration of spent upgrading material.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: November 26, 2019
    Assignee: Indian Oil Corporation Limited
    Inventors: Gadari Saidulu, Sadhullah Mukthiyar, Sayapaneni Gopinath Bhanuprasad, Vineeth Venu Nath, Doosa Hima Bindu, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Brijesh Kumar, Biswapriya Das
  • Patent number: 10478840
    Abstract: An apparatus and a method for mixing and atomizing a hydrocarbon stream is disclosed. The apparatus comprises of an inner conduit having a first inlet for receiving the hydrocarbon stream, and a second inlet for receiving a primary dispersion stream. The inner conduit produces a primary mixture comprising the hydrocarbon stream and the primary dispersion stream. The apparatus further includes an outer conduit having a third inlet for receiving a secondary dispersion stream. Further, said inner and outer conduits together define an annular passage. The distal end of the annular passage defines a second set of orifices for allowing the secondary dispersion stream flowing there-through to come in contact with the primary mixture and thereby dispensing the secondary mixture so obtained through an outlet.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: November 19, 2019
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Shoeb Hussain Khan, Venkata Hari Prasad Gupta Bandaru, Jagdev Kumar Dixit, Gautam Thapa, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Sankara Sri Venkata Ramakumar