Patents Assigned to Indian Oil Corporation Limited
  • Patent number: 11773039
    Abstract: The present disclosure provides an integrated process and a Cu/Zn-based catalyst system for synthesizing methanol from CO2 and generating electricity from hydrocarbon feedstock. The process includes steps of gasifying hydrocarbon feedstock into syngas by using oxygen and using the produced syngas as a fuel in a power generation unit, reusing a first part of an exhaust stream of the power generation unit as a reactant in the gasification unit. Using a second part of the said exhaust stream as a reactant for methanol synthesis in a methanol reactor, wherein, the second part is treated to separate CO2 and water, and CO2 is used as the reactant for methanol synthesis. Operating an electrolyzer during non-peak hours to produce hydrogen, wherein, a required stoichiometric ratio of the produced hydrogen is transferred into the methanol reactor for methanol synthesis, wherein, a Cu/Zn-based catalyst system is used for methanol synthesis through a direct hydrogenation reaction of CO2.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: October 3, 2023
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Siva Rama Krishna Garapati, Meeta Sharma, Mani Ramya, Rajesh Muralidhar Badhe, Alok Sharma, Gurpreet Kapur Singh, Sankara Sri Venkata Ramakumar
  • Patent number: 11774383
    Abstract: The present invention relates to a method based on proton NMR technique to differentiate genuine and spurious Hand-rub formulations. This method identifies and estimates all four components present in WHO-recommended Hand-rub formulations. Further, this method also identifies the presence of non-recommended/additional components present in WHO-recommended Hand-rub formulations. The method described in this invention utilizes experimental parameters and derived equations to quantify all four components in just fifteen minutes without using any organic solvents.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: October 3, 2023
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Ravindra Kumar, Sujit Mondal, Christopher Jayaraj, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Patent number: 11739252
    Abstract: The present invention provides a composition and a method for mitigating formation or activity of a corrosion-associated biofilm on metal surfaces of pipelines. The pipelines are first treated with pigs i.e. bi-di pigs for removing/disturbing biofilm, followed by microbial treatment i.e. application of microbecidal composition. The microbecidal composition comprising at least one alcohol, one corrosion inhibitor, one surfactant, one biocide and a lignin-based nanoparticle. The lignin-based nano particle is functionalized with amine functionalizing agent. The present composition and method is eco-friendly, as low concentration is sufficient and further, regular dosing is not required for MIC control.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: August 29, 2023
    Assignee: Indian Oil Corporation Limited
    Inventors: Manoj Kumar, Qazi Mohammad Amir, Prakash Chandra Sahoo, Suresh Kumar Puri, Sankara Sri Venkata Ramakumar
  • Patent number: 11739277
    Abstract: Organic sulfur compounds which are generally present in the crude oil undergoes various transformations while processing the crude oil in the secondary processing units such as fluid catalytic cracker, hydrocracker, delayed coker, visbreaker, etc. The sulfur present in the feed which enters into these secondary processing units are distributed into various products coming out of the units. Sulfur compounds which are present in the various product fractions are removed to meet the desired specifications before routing to the final product pool. Conventionally, sulfur present in the LPG has been removed by amine treatment followed by caustic and water wash. The present invention relates to a process for removal of sulfur and other impurities from Liquefied Petroleum Gas (LPG) comprising olefins through reactive desulfurization route. The present invention is an eco-friendly process as it minimizes or eliminates the use of caustic which is conventionally used to remove the sulfur from LPG.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: August 29, 2023
    Assignee: Indian Oil Corporation Limited
    Inventors: Saravanan Subramani, Vimal Kumar Upadhyay, Prosenjit Maji, Reshmi Manna, Vatsala Sugumaran, Mahalingam Vanamamalai, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Publication number: 20230265026
    Abstract: A process for conversion of hydrocarbon feedstock into lighter olefins of C2 to C4 carbons, the process comprising of cracking the hydrocarbon feedstock in a reactor in the presence of a catalyst. The catalyst for short contact time catalytic cracking process of heavy hydrocarbons having contact time less than 1 second to produce light olefins of C2 to C4 carbon in the range of 40 to 60 wt % on fresh feed basis in a fluidized bed reactor which is concentric downflow reactor in presence of catalyst consisting of ultra-stable Y zeolite in the range of 5-10 wt %, 4 to 8 wt % of pentasil zeolite, 2.5-5 wt % of bottom selective material, 0.5-2 wt % of rare earth and 75-88 wt % of support material.
    Type: Application
    Filed: February 21, 2023
    Publication date: August 24, 2023
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Sadhullah MUKTHIYAR, Shikha SALUJA, Gadari SAIDULU, Arumugam Velayutham KARTHIKEYANI, Madhusudan SAU, Debasis BHATTACHARYYA, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
  • Patent number: 11732200
    Abstract: The present invention relates to an integrated process for increasing the research octane number (RON) of FCC gasoline with simultaneous reduction in benzene content. In this process, benzene rich gasoline fraction is reacted with light olefin rich gaseous streams like FCC off gas/dry gas, coker off gas to produce alkyl aromatics using FCC catalyst system containing ZSM-5 zeolite. The catalyst is continuously drawn from the FCC regenerator by suitably placing the alkylation reactor in communication with the FCC regenerator. The product stream of the alkylation reactor is routed to main fractionator for separation of off gas and benzene lean gasoline. This integrated process not only improves the octane number of gasoline but also lowers the gasoline benzene content. Further the integrated alkylation reactor system acts as a heat sink lowering the FCC regenerator temperature and enables the FCC unit to process high CCR feeds.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: August 22, 2023
    Assignee: Indian Oil Corporation Limited
    Inventors: Sandup Tshering Bhutia, Vineeth Venu Nath, Arvind Wamandas Mahant, Bandaru Hari Venkata Prasad Gupta, Ram Mohan Thakur, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Patent number: 11731094
    Abstract: The present invention provides a multistage single reactor system for hydroprocessing and a process of carrying out multistage hydroprocessing in the said reactor assembly consisting of, a fixed bed solid catalyst system, a feed injection system enabling axial flow of hydrogen saturated hydrocarbon feed, a hydrogen dispensing system inside the reactor enabling minimum required hydrogen flow in cross-flow pattern, also using multitudes of integrated separation and withdrawal limbs for continuous staging. The innovative reactor disclosed in the present invention enables continuous separation and withdrawal of gaseous products along the reactor length by means of combined horizontal reactor orientation and vertical separation limbs provided at the top of the horizontally oriented reactor. The advantage of the reactor assembly includes effective heat sink of exothermic reactions and lower severity of operation due to removal of inhibitory gaseous products.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: August 22, 2023
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Yamini Gupta, Arun Arangarasu, Nepal Viswakarma, Ganesh Vitthalrao Butley, Sarvesh Kumar, Madhusudan Sau, Gurpreet Kapur Singh, Sankara Sri Venkata Ramakumar
  • Patent number: 11731121
    Abstract: The present invention provides a process of preparing a high coordination sulfated mixed metal oxide catalyst. The process comprises mixing specific ratios of alumina and zirconia mixtures at specific particle size limits which do not exceed 37 ?m, in the presence of a combination of ?-amino acids, i.e., non-polar side chains and basic side chains having molecular weight less than 250, nitric acid (HNO3) and sulfuric acid (H2SO4) at a pH range of 1.5 to 3.8 at temperatures below 30° C. The catalysts have a high conversion towards hydrocarbon isomerization reaction while concurrently having crushing strength in range of 2.0 daN and 5.0 daN, allowing for efficient commercial application.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: August 22, 2023
    Assignees: Viridis Chemicals Private Limited, Indian Oil Corporation Limited
    Inventors: Chaitanya Sampara, Pushkar Varshney, Reshmi Manna, Saravanan Subramani, Madhusudan Sau, Debasis Bhattacharyya, Sankara Sri Venkata Ramakumar
  • Patent number: 11661556
    Abstract: The present invention relates to a sequential thermo-chemical treatment along with adsorption-based pre-treatment process for residual oils having a very high naphthenic acid content. First stage of the process is a thermal pre-treatment step which results into generation of hydrocarbon stream with a reduced naphthenic acid content due to high temperature. In second stage of pre-treatment, generated hydrocarbon stream from stage-1 is subjected to esterification reaction with alcohol, such as methanol, to further reduce the TAN of hydrocarbon stream. After recovery of alcohol from the reaction mixture, depending on TAN reduction required reaction mixture may be subjected to an adsorption stage, third stage pre-treatment, where an adsorbent mixture comprising of FCC spent catalyst is used to adsorb the TAN of feed hydrocarbon stream. The treated hydrocarbon stream is then co-processed with DCU feed stock for producing lighter hydrocarbons.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: May 30, 2023
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Shivam Ashok Dixit, Ponoly Ramachandran Pradeep, Jitumoni Brahma, Terapalli Hari Venkata Devi Prasad, Satyen Kumar Das, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Publication number: 20230159838
    Abstract: The present invention discloses a single stage energy efficient process for production of hydrogen enriched/mixed gas at low temperature. More particularly, the present invention discloses a single stage energy efficient process for production of hydrogen enriched compressed natural gas (CNG) or LPG or biogas at low temperature.
    Type: Application
    Filed: November 25, 2022
    Publication date: May 25, 2023
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Chinmay Abhijit CHAUDHARI, Sachin CHUGH, Mohanraju KARUPPANNAN, Meenakshi SUNDARRAMAN, Kapil SONKAR, Alok SHARMA, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
  • Patent number: 11649200
    Abstract: The present invention discloses an integrated process and an apparatus for production of various alcohols and Oligomerization of Olefinic feed stocks comprising butylenes and mixture thereof. In this process the combined light olefinic hydrocarbon feedstock is divided into two streams and contacted in two different reaction zones, viz. hydration and oligomerization. The mixture of alcohols and oligomer product from hydration reaction is separated and the bottom stream from separator is routed to oligomerization reaction zone in a controlled quantity as selectivity enhancer. Both the reaction zones are operated at different conditions. The product from oligomerization zone is further separated in to lighter and heavier components. Each reaction zone may comprise series of reactors filled with acidic catalysts comprising ion exchange resins.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: May 16, 2023
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Saravanan Subramani, Pushkar Varshney, Reshmi Manna, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Patent number: 11643607
    Abstract: The present invention provides a process for production of graphite coke from an admixture of coal and petroleum-based hydrocarbons. This particularly describes a process wherein a mixture of coal tar pitch and hydrocarbon feedstock such as CLO is purified in a solvent treatment step and the purified mixed feedstock is subjected to thermal cracking to produce high quality graphite/needle coke. This process also provides a synergy in improved coke quality coke formation while using an admixture of coal tar pitch and CLO while subjected to common purification and coking steps.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: May 9, 2023
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Prantik Mondal, Ponoly Ramachandran Pradeep, Terapalli Hari Venkata Devi Prasad, Satyen Kumar Das, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Patent number: 11642656
    Abstract: 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: Grant
    Filed: January 4, 2021
    Date of Patent: May 9, 2023
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Kumaresan Loganathan, Arumugam Velayutham Karthikeyani, Hima Bindu Doosa, Ram Mohan Thakur, Alex Cheru Pulikottil, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Publication number: 20230132472
    Abstract: The present invention relates to a highly efficient system and method for heat storage for modular indoor cooking and other engineering applications comprising of set of carefully selected insulation materials and their arrangement so as to maximize the storage of heat for the desired time duration.
    Type: Application
    Filed: October 19, 2022
    Publication date: May 4, 2023
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Vibhav DIKSHIT, Vinay TIWARI, Umish SRIVASTAVA, Deepak SAXENA, Sankara Sri Venkata RAMAKUMAR
  • Publication number: 20230135497
    Abstract: The present invention relates to a method for refinery wastewater treatment which comprises hybrid electrode system for simultaneous flocculation/coagulation and oxidation in single system. Further, the present invention provides a system for refinery wastewater treatment.
    Type: Application
    Filed: October 31, 2022
    Publication date: May 4, 2023
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Srikanth SANDIPAM, Manoj KUMAR, Ravi Prakash GUPTA, Suresh Kumar PURI, Sankara Sri Venkata RAMAKUMAR
  • Patent number: 11634684
    Abstract: The present invention provides to a process for recovery of an organic compound (i.e. Ethanol, propanol, butanol, Acetone, iso-propyl alcohol) from a fermented broth which is produced from different fermentation technologies. The present invention particularly relates to an integrated process for ethanol separation from the fermentation broth using integrated vapor compressing unit (turbofans), evaporator (falling film) and a broth stripper column (vacuum distillation system). The process is operated under low temperature for the separation and recovery of the organic compound (particularly ethanol) from the fermented broth containing live microbes typically below or at 50° C. to ensure the activity of the microbes in the broth recycle. Again, the activity of the microbes is further ensured by maintaining the residence time of the microbe containing broth outside the Fermentor is less than or equal to 10 minutes.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: April 25, 2023
    Assignee: Indian Oil Corporation Limited
    Inventors: Mukesh Kumar Sharma, Gaurav Bajaj, Alok Sharma
  • Patent number: 11624116
    Abstract: The present invention relates to a method for reducing or preventing the formation or activity of a corrosion-associated biofilm on a metal surface, wherein the method comprises contacting the metal surface with a liquid composition comprising biocidal preparation. The present invention also relates to a microbicidal composition comprising at least one alcohol, one liquid hydrocarbon, a bacteriophage immobilized on a magnetic nanocomposite, at least one phage releasing reagent and one stabilizer. The microbicide composition and method of the present invention reduces biofilms on surfaces, and consequently, reduces, mitigates, or eliminates MIC in internal surface of the oil transporting pipelines.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: April 11, 2023
    Assignee: Indian Oil Corporation Limited
    Inventors: Manoj Kumar, Prakash Chandra Sahoo, Suresh Kumar Puri, Sankara Sri Venkata Ramakumar
  • Patent number: 11623937
    Abstract: An integrated approach for utilizing waste products of 2G bio-refineries to fractionate the lignin of high purity. The present invention also provides a method of recycling of two waste products (2-G ethanol residue as the substrate (LRBR) and fusel oil/synthetic fusel oil (SFO) as one of the solvent) of the biorefineries in a beneficial manner to fractionate the lignin of high purity. The present method of separating high purity lignin comprises fractioning extractive-free lignin rich residue with a solvent, wherein the solvent is a mixture of SFO/Fusel oil and Formic acid. An optimized ratio of waste fusel oil and formic acid gave more than >85% yields of high purity lignin.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: April 11, 2023
    Assignees: INDIAN OIL CORPORATION LIMITED, DEPARTMENT OF BIOTECHNOLOGY
    Inventors: Alok Satlewal, Ruchi Agrawal, Ravindra Kumar, Ravi Prakash Gupta, Suresh Kumar Puri, Deepak Saxena, Sankara Sri Venkata Ramakumar
  • Patent number: 11618907
    Abstract: The present invention discloses a process of xylitol production from pure xylose, xylose containing liquid extract from the acid pretreated biomass (LEPB) and co-production of ethanol and xylitol from dilute acid pretreated lignocellulosic biomass by natural S. cerevisiae DBT-IOC S24 (MTCC25086). The present invention also discloses a process of xylitol production wherein a thermo and inhibitor tolerant S. cerevisiae DBT-IOC S24 (MTCC25086) natural strain has been induced to produce xylitol from xylose at defined process parameters using xylose containing diluted acid pretreated biomass as well as from xylose containing synthetic media in presence of glucose, lignocelluloses biomass derived xylitol inducer maintaining aeration at 1VVM and pH at 5.0 in the medium.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: April 4, 2023
    Assignees: Indian Oil Corporation Limited, Department Of Biotechnology
    Inventors: Ajay Kumar Sharma, Manas Ranjan Swain, Ajit Singh, Anshu Shankar Mathur, Ravi Prakash Gupta, Suresh Kumar Puri, Sankara Sri Venkata Ramakumar
  • Publication number: 20230101524
    Abstract: The present invention provides a method for production of anode grade coke by processing crude oil feed stock in a DCU. The method comprising separation of low boiling light molecular weight components from heavier molecules and processing the same in Delayed Coker Unit after mixing with aromatic rich stream to overcome the operational issue envisaged due to processing of paraffin containing crude feed. The coke so obtained was calcined to produce an improved quality coke having lesser impurities (Sulfur <3 wt %) and better crystallinity.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 30, 2023
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Shivam Ashok DIXIT, Terapalli Hari Venkata Devi PRASAD, Ponoly Ramachandran PRADEEP, Rajesh *, Satyen Kumar DAS, Madhusudan SAU, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR