Patents by Inventor Biswapriya DAS
Biswapriya DAS 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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Publication number: 20210079340Abstract: The present invention relates to an inoculum of microbial consortium containing live microorganisms. More particularly, the present invention relates to a novel enviro-tolerant methane-producing microbial consortium and a method for the production of biogas having high methane content from organic wastes and biomass slurries. The microbial consortium disclosed in the present invention produces stable biogas production without any seasonal variation impact.Type: ApplicationFiled: July 30, 2020Publication date: March 18, 2021Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Manoj KUMAR, Mahendra Pratap SINGH, Mohana Rao DAMACHERLA, Umish SRIVASTVA, Dheer SINGH, Biswapriya DAS
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Patent number: 10760014Abstract: This invention relates to a process for hydro cracking of heavy oils. More particularly, this invention relates to a catalytic process for converting heavy oils, such as vacuum gas oil (VGO) and VGO containing a high proportion of vacuum resid (VR) to middle distillate products.Type: GrantFiled: August 17, 2016Date of Patent: September 1, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Pravesh Kumar, Pappu Naresh, Vinay Kumar Chaudhary, Darshankumar Manubhai Dave, Kamal Kumar, Murugan Balasundaram, Karumanchi Ramesh, Ganesh Vitthalrao Butley, Om Prakash Nandwani, Madhusudan Sau, Brijesh Kumar, Biswapriya Das
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Patent number: 10759663Abstract: A catalyst composition for the production of carbon nanotubes (CNT) with controlled morphology is disclosed. The catalyst is represented by formula [(MxMny)Moz][binary metal oxide](100?(x+y+z)), where x is in the range 1 to 25 wt %, y is in the range 0.1 to 20 wt %, and z is in the range 0.0 to 10 wt %. Further M represents either iron or cobalt or nickel along with manganese and molybdenum supported on binary metal oxides comprising of boron, magnesium, aluminum, silicon, calcium, barium, and combination thereof. The CNT morphology can be tailor-made with the plural combination of nature of metal and promoters in appropriate proportions. The process yields the CNT with bulk density in the range of 0.01 to 0.20 g/cc, diameter in the range of 5 to 30 nm and purity greater than 95 wt %.Type: GrantFiled: March 8, 2018Date of Patent: September 1, 2020Assignee: Indian Oil Corporation LimitedInventors: Narayanam Seshubabu, Palvannan Mohanasundaram, Bhanumurthy Samala, Naduhatty Selai Raman, Rashmi Bagai, Sankara Sri Venkata Ramakumar, Biswapriya Das
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Patent number: 10702795Abstract: The invention relates to the production of High purity n-hexane from low value stream such as raffinate from benzene extraction unit in crude oil refineries employing extractive distillation. The present invention further related to an extractive distillation employing an organic solvent having comparable or same Hansen dispersive force parameter (?d) of that of the key component of to be separated through extractive distillation. The present invention is useful for separating and isolating pure cyclohexane, pure methylcyclopentane and pure iso-heptane along with the pure n-hexane.Type: GrantFiled: January 18, 2017Date of Patent: July 7, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Prakash Bhagwant Bhalavi, Irudayaraj Devotta, Naduhatty Selai Raman, Brijesh Kumar, Biswapriya Das
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Patent number: 10662385Abstract: 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: GrantFiled: August 15, 2016Date of Patent: May 26, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: 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
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Patent number: 10526202Abstract: 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: GrantFiled: August 18, 2016Date of Patent: January 7, 2020Assignee: Indian Oil Corporation LimitedInventors: Sadhullah Mukthiyar, Sayapaneni Gopinath Bhanuprasad, Gadari Saidulu, Eswar Prasad Dalai, Sanjeev Singh, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Brijesh Kumar, Biswapriya Das
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Patent number: 10501692Abstract: 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: GrantFiled: July 14, 2017Date of Patent: December 10, 2019Assignee: INDIAN OIL CORPORATION LIMITEDInventors: 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
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Patent number: 10487279Abstract: 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: GrantFiled: August 18, 2016Date of Patent: November 26, 2019Assignee: Indian Oil Corporation LimitedInventors: Gadari Saidulu, Sadhullah Mukthiyar, Sayapaneni Gopinath Bhanuprasad, Vineeth Venu Nath, Doosa Hima Bindu, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Brijesh Kumar, Biswapriya Das
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Patent number: 10468671Abstract: The present invention deals with employing Heteroatoms namely Nitrogen, Sulphur intrinsic embedded carbon nanotubes (H-CNT) as multifunctional additive for preparing lead acid battery electrodes to substitute the expander chemicals namely, Vanisperse, Dinel Fibre, Barium sulphate and carbon black. Further the invention provides H-CNT in-situ produced from Crude oil or its products.Type: GrantFiled: March 12, 2018Date of Patent: November 5, 2019Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Palvannan Mohanasundaram, Bhanumurthy Samala, Narayanam Seshubabu, Amardeep Singh, Naduhatty Selai Raman, Sankara Sri Venkata Ramakumar, Biswapriya Das
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Patent number: 10450662Abstract: The present invention relates to a device for bioassisted conversion of carbon dioxide to organic compounds that can be used a fuels and chemicals. The present invention also relates to a bioassisted process of converting carbon dioxide to organic compounds.Type: GrantFiled: August 19, 2016Date of Patent: October 22, 2019Assignee: Indian Oil Corporation LimitedInventors: Manoj Kumar, Mahendra Pratap Singh, Umish Srivastava, Anurag Ateet Gupta, Biswapriya Das
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Patent number: 10449524Abstract: The present invention relates to a catalyst product for cracking of heavy hydrocarbon feed stocks predominantly in to light olefins and processes for preparing the catalyst. More specifically the present invention relates to a process of preparing Fluidic Catalytic Cracking (FCC) catalyst additive composition. The FCC catalyst additive composition of the present invention is a LPG selective catalyst particles comprising a medium pore zeolite bonded with clay-phosphate-silica-alumina binder. The catalyst of the present invention exhibits improved selectivity towards high value components like propylene and gasoline and suppressing low value components like dry gas and bottoms.Type: GrantFiled: August 15, 2016Date of Patent: October 22, 2019Assignee: Indian Oil Corporation LimitedInventors: Mohan Prabhu Kuvettu, Mahesh Kadgaonkar, Biswanath Sarkar, Velusamy Chidambaram, Arumugam Velayutham Karthikeyani, Alex Pulikottil, Jayaraj Christopher, Brijesh Kumar, Biswapriya Das
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Patent number: 10413889Abstract: The present invention relates to a fluid catalytic cracking additive composition for cracking of heavy hydrocarbon feed stocks and process for preparing the additive. The additive is suitable for enhancing yields of light olefins such as propylene, isobutylene, LPG and reduces the bottom yields. The invention specifically relates to a fluid catalytic cracking additive composition comprising a pentasil zeolite, zeolites having pore size in a range of 5.4-7.7 ?, alumina, colloidal silica, kaolin clay, and phosphate, wherein the zeolites having pore size in the range of 5.4-7.7 ? is present in an amount of 1 to 10 wt % with respect to the total amount of the pentasil zeolite and zeolite having the pore size in the range of 5.4-7.7 ?.Type: GrantFiled: August 15, 2016Date of Patent: September 17, 2019Assignee: Indian Oil Corporation LimitedInventors: Mahesh Kadgaonkar, Biswanath Sarkar, Alex Cheru Pulikottil, Velusamy Chidambaram, Arumugam Velayutham Karthikeyani, Mohan Prabhu Kuvettu, Shiba Prasad Choudhury, Jayaraj Christopher, Brijesh Kumar, Biswapriya Das
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Patent number: 10399073Abstract: This present invention relates to oil-soluble metal compositions of metals and a method for its preparation. The composition finds application in catalysis as catalysts precursors or additives for in situ generation of nano dispersed metal/metal sulfide clusters for heavy oil hydroconversion and in the area of lubrication as friction modifiers.Type: GrantFiled: August 4, 2016Date of Patent: September 3, 2019Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Murugan Balasundaram, Kochappilly Ouseph Xavier, Alex Cheru Pulikottil, Mohan Prabhu Kuvettu, Brijesh Kumar, Biswapriya Das
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Patent number: 10384948Abstract: The present invention relates to a Cracking Catalyst composition for cracking of heavy hydrocarbon feed stocks and process for preparing the catalyst. The catalyst is prepared by incorporating 1-10 wt % phosphate treated USY zeolite in which phosphate is present in the range of 10 to 50 wt % on the basis of phosphated zeolite, in a mixture of 10-50 wt % dispersible alumina, 0-30 wt % non-dispersal alumina, 5-30 wt % colloidal silica, 15-50 wt % clay and 5-15 wt % phosphate.Type: GrantFiled: August 9, 2016Date of Patent: August 20, 2019Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Biswanath Sarkar, Mohan Prabhu Kuvettu, Velusamy Chidambaram, Alex Cheru Pulikottil, Pankaj Kumar Kasliwal, Shiba Prasad Choudhury, Ram Mohan Thakur, Brijesh Kumar, Biswapriya Das
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Patent number: 10245581Abstract: The present invention relates to attrition resistant hydrocarbon cracking catalyst additive composition comprising aluminum phosphate binder for cracking of hydrocarbon molecules to produce light olefins and process of preparation thereof. The present invention further relates to the process of preparation of the aluminum phosphate binder wherein said binder is incorporated into the ZSM-5 additive composition to enhance its attrition resistance property as well as enhance selectivity and activity of additive composition for production of light olefins such as liquefied petroleum gas (LPG).Type: GrantFiled: August 10, 2016Date of Patent: April 2, 2019Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Biswanath Sarkar, Arumugam Velayutham Karthikeyani, Mohan Prabhu Kuvettu, Mahesh Kadgaonkar, Velusamy Chidambaram, Balaiah Swamy, Brijesh Kumar, Biswapriya Das
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Patent number: 10201810Abstract: The present invention discloses a catalyst and process for hydrocracking of heavy hydrocarbon oils having majority portion boiling above 525° C. in the presence of hydrogen. A process comprising first step of converting heavy oil into lighter products in the presence of catalyst and hydrogen in slurry phase is disclosed. The process further comprises recycling of part of liquid products (HVGO) along with fresh heavy oil for improving the product selectivity. This recycled HVGO is having high concentrations of aromatics compounds. The separation of particles generated during the reaction at reactor exit also avoids the chances of choking of downstream sections.Type: GrantFiled: August 9, 2016Date of Patent: February 12, 2019Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Brijesh Kumar, Pravesh Kumar, Kamal Kumar, Ganesh Vitthalrao Butley, Madhusudan Sau, Biswapriya Das
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Publication number: 20180339905Abstract: A catalyst composition for the production of carbon nanotubes (CNT) with controlled morphology is disclosed. The catalyst is represented by formula [(MxMny)Moz][binary metal oxide](100?(x+y+z)), where x is in the range 1 to 25 wt %, y is in the range 0.1 to 20 wt %, and z is in the range 0.0 to 10 wt %. Further M represents either iron or cobalt or nickel along with manganese and molybdenum supported on binary metal oxides comprising of boron, magnesium, aluminum, silicon, calcium, barium, and combination thereof. The CNT morphology can be tailor-made with the plural combination of nature of metal and promoters in appropriate proportions. The process yields the CNT with bulk density in the range of 0.01 to 0.20 g/cc, diameter in the range of 5 to 30 nm and purity greater than 95 wt %.Type: ApplicationFiled: March 8, 2018Publication date: November 29, 2018Applicant: Indian Oil Corporation LimitedInventors: Narayanam SESHUBABU, Palvannan MOHANASUNDARAM, Bhanumurthy SAMALA, Naduhatty Selai RAMAN, Rashmi BAGAI, Sankara Sri Venkata RAMAKUMAR, Biswapriya DAS
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Publication number: 20180337397Abstract: The present invention deals with employing Heteroatoms namely Nitrogen, Sulphur intrinsic embedded carbon nanotubes (H-CNT) as multifunctional additive for preparing lead acid battery electrodes to substitute the expander chemicals namely, Vanisperse, Dinel Fibre, Barium sulphate and carbon black. Further the invention provides H-CNT in-situ produced from Crude oil or its products.Type: ApplicationFiled: March 12, 2018Publication date: November 22, 2018Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Palvannan MOHANASUNDARAM, Bhanumurthy SAMALA, Narayanam SESHUBABU, Amardeep SINGH, Naduhatty Selai RAMAN, Sankara Sri Venkata RAMAKUMAR, Biswapriya DAS
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Patent number: 10131589Abstract: The present invention relates to a process for production of oligomer products from olefinic C4 feed stocks comprising isobutene, butenes, butanes, butadienes and mixture thereof. Particularly, the present invention relates to a process for the preparation of oligomers using olefinic C4 feed stock in presence of tertiary butyl alcohol (TBA) and iso propyl alcohol (IPA).Type: GrantFiled: June 1, 2015Date of Patent: November 20, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Saravanan Subramani, Reshmi Manna, Pushkar Varshney, Anju Chopra, Debasis Bhattacharyya, Brijesh Kumar, Biswapriya Das, Ravinder Kumar Malhotra
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Patent number: 10001531Abstract: The present invention relates to a compound exhibiting Giant Magneto-Impedance (GMI) properties. The general chemical formula of the compound is (FeXCo100-X)100-(?+?+?)Cr?Si?B?, characterized in that ?<? and ?<?, wherein ? is preferably in the range of 2 to 4% by weight, ? is preferably in the range of 11.5% to 13% by weight, and ? is preferably in the range of 11% to 13% by weight, and X is preferably about 6% by weight. The chemical formula more preferably is (Fe6%Co94%)72.5%Cr2% Si12.5%B13%. The present invention also relates to a giant magneto-impedance (GMI) based sensing device for non-destructive contactless detection of carburization in austenitic stainless steel samples in field.Type: GrantFiled: July 5, 2016Date of Patent: June 19, 2018Assignees: Indian Oil Corporation Limited, COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCHInventors: Sova Bhattacharya, Qazi Mohammad Amir, Chandrasekaran Kannan, Brijesh Kumar, Biswapriya Das, Ashish Kumar Panda, Rajat Kumar Roy, Tarun Kumar Das, Swapan Kumar Das, Amitava Mitra