Patents by Inventor Gopal Ravichandran
Gopal Ravichandran 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: 11945728Abstract: A process for obtaining vanadium component in the form of vanadium oxide from gasifier slag is disclosed. The process comprises pulverizing the slag to obtain pulverized slag, which is blended with water and an alkali salt to obtain a slurry. The slurry is dried and then roasted in the presence of air to obtain a roasted slag. The roasted slag is leached to obtain a first filtrate comprising the vanadium component. The first filtrate is reacted with a magnesium salt to remove a silica component in the form of a precipitate. The silica free second filtrate is reacted with an ammonium salt to obtain ammonium metavanadate, which is further calcined to obtain the significant amount of vanadium pentoxide (V2O5).Type: GrantFiled: April 3, 2019Date of Patent: April 2, 2024Assignee: Reliance Industries LimitedInventors: Sateesh Daggupati, Sachchit Majhi, Sukumar Mandal, Asit Kumar Das, Vipulkumar Rameshbhai Panchotia, Mehul Bharatbhai Joshi, Gopal Ravichandran, Praveen Kumar Chinthala, Swapan Kumar Ghosh, Ajit Vishwanath Sapre
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Patent number: 11118116Abstract: The present disclosure relates to an FCC catalyst additive for cracking of petroleum feedstock and a process for its preparation. The FCC catalyst additive of the present disclosure comprises at least one zeolite, at least one clay, at least one binder, phosphorous in the form of P2O5, and at least one Group IVB metal compound. The FCC catalyst additive of the present disclosure is hydrothermally stable and has improved matrix surface area even after various hydrothermal treatments. The FCC catalyst additive of the present disclosure can be used in combination with the conventional FCC catalyst for catalytic cracking to selectively enhance the propylene and LPG yields.Type: GrantFiled: March 30, 2018Date of Patent: September 14, 2021Assignee: Reliance Industries LimitedInventors: Praveen Kumar Chinthala, Gopal Ravichandran, Tejas Dineshbhai Doshi, Ankit Vipinkumar Patel, Vinodh Rayan, Sukumar Mandal, Asit Kumar Das
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Publication number: 20210017038Abstract: A process for obtaining vanadium component in the form of vanadium oxide from gasifier slag is disclosed. The process comprises pulverizing the slag to obtain pulverized slag, which is blended with water and an alkali salt to obtain a slurry. The slurry is dried and then roasted in the presence of air to obtain a roasted slag. The roasted slag is leached to obtain a first filtrate comprising the vanadium component. The first filtrate is reacted with a magnesium salt to remove a silica component in the form of a precipitate. The silica free second filtrate is reacted with an ammonium salt to obtain ammonium metavanadate, which is further calcined to obtain the significant amount of vanadium pentoxide (V2O5).Type: ApplicationFiled: April 3, 2019Publication date: January 21, 2021Applicant: Reliance Industries LimitedInventors: Sateesh Daggupati, Sachchit Majhi, Sukumar Mandal, Asit Kumar Das, Vipulkumar Rameshbhai Panchotia, Mehul Bharatbhai Joshi, Gopal Ravichandran, Praveen Kumar Chinthala, Swapan Kumar Ghosh, Vishwanath Sapre Ajit
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Publication number: 20200071623Abstract: The present disclosure relates to an FCC catalyst additive for cracking of petroleum feedstock and a process for its preparation. The FCC catalyst additive of the present disclosure comprises at least one zeolite, at least one clay, at least one binder, phosphorous in the form of P2O5, and at least one Group IVB metal compound. The FCC catalyst additive of the present disclosure is hydrothermally stable and has improved matrix surface area even after various hydrothermal treatments. The FCC catalyst additive of the present disclosure can be used in combination with the conventional FCC catalyst for catalytic cracking to selectively enhance the propylene and LPG yields.Type: ApplicationFiled: March 30, 2018Publication date: March 5, 2020Applicant: Reliance Industries LimitedInventors: Praveen Kumar CHINTHALA, Gopal RAVICHANDRAN, Tejas Dineshbhai DOSHI, Ankit Vipinkumar PATEL, Vinodh RAYAN, Sukumar MANDAL, Asit Kumar DAS
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Patent number: 9944867Abstract: A computer implemented blend control system and method for preparation of a hydrocarbon blend from a plurality of components drawn from respective component tanks have been disclosed. The system, in accordance with the present disclosure includes at least one sensor and analyzer adapted to sense and analyze a first attribute of at least one of the components for obtaining first attribute data. The system further includes, at least one optimizer having a data storage means for storing attribute based model data. The optimizer receives the first attribute data and transmits the received first attribute data to a comparator which computes an optimized proportion data between each of the component streams to enable selective drawing of each of the component streams in accordance with the optimized proportion data for preparing the hydrocarbon blend.Type: GrantFiled: January 8, 2014Date of Patent: April 17, 2018Assignee: Reliance Industries LimitedInventors: Anil Wadhwa, Ashish Ranjan Jha, Chandra Saravanan, Asit Kumar Das, Pinakiranjan Sankarprasad Patra, Sukumar Mandal, Praveen Kumar Chinthala, Gopal Ravichandran, Sudhirkumar Raojibhai Patel, Anand Raj Rajan, Ashok Swamisharan Pathak, Saumya Srivastava
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Patent number: 9939821Abstract: A computer implemented blend control system and method for preparation of a hydrocarbon blend from a plurality of component streams have been disclosed. The system includes a product tank for receiving a mixture comprising the plurality of component streams. The system further includes a sensor and analyzer adapted to sense and analyze a first attribute of the received mixture for obtaining a first attribute data. The system further includes an optimizer which stores the attribute based model data, receives the first attribute data and compares the received first attribute data with the attribute based model data to compute an optimized proportion data, based on which the component streams are selectively drawn into the product tank for preparing the hydrocarbon blend.Type: GrantFiled: January 8, 2014Date of Patent: April 10, 2018Assignee: Reliance Industries LimitedInventors: Anil Wadhwa, Ashish Ranjan Jha, Chandra Saravanan, Asit Kumar Das, Pinakiranjan Sankarprasad Patra, Sukumar Mandal, Praveen Kumar Chinthala, Gopal Ravichandran, Sudhirkumar Raojibhai Patel, Anand Raj Rajan, Ashok Swamisharan Pathak, Saumya Srivastava
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Patent number: 9783743Abstract: The present invention relates to a catalyst composition for Fluid Catalytic Cracking (FCC) which contains a combination of a FCC catalyst component and an additive component with certain physical properties attributed therein. The present invention is also directed to provide methods for the preparation of the catalyst composition for FCC. The admixture of the FCC catalyst component and additive component is used in cracking of hydrocarbon feedstock containing hydrocarbons of higher molecular weight and higher boiling point and/or olefin gasoline naphtha feedstock for producing lower yield of fuel gas without affecting the conversion and yield of general cracking products such as gasoline, propylene and C4 olefins.Type: GrantFiled: January 6, 2014Date of Patent: October 10, 2017Assignee: Reliance Industries LimitedInventors: Srikanta Dinda, Praveen Kumar Chinthala, Amit Gohel, Ashwani Yadav, Sukumar Mandal, Gopal Ravichandran, Asit Kumar Das
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Patent number: 9550708Abstract: A process for catalytic conversion of low value hydrocarbon streams to light olefins in comparatively higher yields is disclosed. Propylene is obtained in amounts higher than 20 wt. % and ethylene higher than 6 wt. %. The process is carried out in a preheated cracking reactor having a single riser and circulating an FCC catalyst. The riser is divided into three temperature zones in which different hydrocarbon feeds are introduced. An oxygenate feed is introduced in the operative top zone in the riser. Heat for the endothermic cracking is obtained by the exothermic reaction of converting the oxygenate feed into gas and/or from a regenerator in which the spent FCC catalyst is burnt.Type: GrantFiled: August 14, 2014Date of Patent: January 24, 2017Assignee: Reliance Industries LimitedInventors: Sukumar Mandal, Manoj Yadav, Amitkumar Parekh, Asit Kumar Das, Shubhangi Jaguste, Praveen Kumar Chinthala, Gopal Ravichandran, Mahesh Marve, Ajit Sapre
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Publication number: 20160216242Abstract: A process for testing a zeolite based FCC catalyst and a ZSM-5 zeolite based FCC catalyst additive for simulating commercial plant yields is disclosed in, the present disclosure wherein the catalyst and the additive are subjected separately to a steaming protocol with 60 to 100% steam at a temperature in the range of 750° C. to 850° C. for 3 to 200 hours to obtain a catalyst and a catalyst additive deactivated under, said simulated commercial plant hydrothermal deactivation conditions. The deactivated catalyst and the deactivated catalyst additive are admixed in a pre-determined weight proportion. The obtained catalyst mixture is then used for cracking a hydrocarbon feed for a pre-determined period of time to generate cracking data. Product yields are measured from the generated cracking data at a pre-determined simulated commercial plant conversion of the hydrocarbon feed.Type: ApplicationFiled: January 28, 2014Publication date: July 28, 2016Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Gopal RAVICHANDRAN, Praveen Kumar CHINTHALA, Tejas DOSHI, Arun Kumar DURAI ARASU, Amit GOHEL, Sukumar MANDAL, Asit Kumar DAS, Srikanta DINDA, Amit Kumar PAREKH
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Patent number: 9067196Abstract: The present invention relates to a Fluid Catalytic Cracking (FCC) additive preparation process and composition, which has high efficiency in the production of light olefins C2, C3 and C4 hydrocarbons, specifically propylene. The present invention discloses the stabilization of medium pore zeolite specifically ZSM-5 using optimum phosphate salts at a pH in the range 7-9 with synergetic combination of silica rich binder to produce FCC additive having excellent stability under severe hydrothermal conditions.Type: GrantFiled: September 13, 2011Date of Patent: June 30, 2015Assignee: RELIANCE INDUSTRIES LIMITEDInventors: Gopal Ravichandran, Praveen Kumar Chinthala, Tejas Doshi, Arun Kumar, Amit Gohel, Sukumar Mandal, Asit Kumar Das, Srikanta Dinda, Amit Kumar Parekh
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Publication number: 20140357912Abstract: A process for catalytic conversion of low value hydrocarbon streams to light olefins in comparatively higher yields is disclosed. Propylene is obtained in amounts higher than 20 wt. % and ethylene higher than 6 wt. %. The process is carried out in a preheated cracking reactor having a single riser and circulating an FCC catalyst. The riser is divided into three temperature zones in which different hydrocarbon feeds are introduced. An oxygenate feed is introduced in the operative top zone in the riser. Heat for the endothermic cracking is obtained by the exothermic reaction of converting the oxygenate feed into gas and/or from a regenerator in which the spent FCC catalyst is burnt.Type: ApplicationFiled: August 14, 2014Publication date: December 4, 2014Applicant: Reliance Industries LimitedInventors: Sukumar MANDAL, Manoj YADAV, Amitkumar PAREKH, Asit Kumar DAS, Shubhangi JAGUSTE, Praveen Kumar CHINTHALA, Gopal RAVICHANDRAN, Mahesh MARVE, Ajit SAPRE
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Publication number: 20140194657Abstract: A computer implemented blend control system and method for preparation of a hydrocarbon blend from a plurality of components drawn from respective component tanks have been disclosed. The system, in accordance with the present disclosure includes at least one sensing and analyzing means adapted to sense and analyze a first attribute of at least one of the components for obtaining first attribute data. The system further includes, at least one optimizing means having a data storage means for storing attribute based model data. The optimizing means receives the first attribute data and transmits the received first attribute data to a comparator means which computes an optimized proportion data between each of the component streams to enable selective drawing of each of the component streams in accordance with the optimized proportion data for preparing the hydrocarbon blend.Type: ApplicationFiled: January 8, 2014Publication date: July 10, 2014Applicant: Reliance Industries LimitedInventors: Anil Wadhwa, Ashish Ranjan Jha, Chandra Saravanan, Asit Kumar Das, Pinakiranjan Sankarprasad Patra, Sukumar Mandal, Praveen Kumar Chinthala, Gopal Ravichandran, Sudhirkumar Raojibhai Patel, Anand Raj Rajan, Ashok Swamisharan Pathak, Saumya Srivastava
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Publication number: 20140195055Abstract: A computer implemented blend control system and method for preparation of a hydrocarbon blend from a plurality of component streams have been disclosed. The system includes a product tank for receiving a mixture comprising the plurality of component streams. The system further includes a sensing and analyzing means adapted to sense and analyze a first attribute of the received mixture for obtaining a first attribute data. The system further includes an optimizing means which stores the attribute based model data, receives the first attribute data and compares the received first attribute data with the attribute based model data to compute an optimized proportion data, based on which the component streams are selectively drawn into the product tank for preparing the hydrocarbon blend.Type: ApplicationFiled: January 8, 2014Publication date: July 10, 2014Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Anil Wadhwa, Ashish Ranjan Jha, Chandra Saravanan, Asit Kumar Das, Pinakiranjan Sankarprasad Patra, Sukumar Mandal, Praveen Kumar Chinthala, Gopal Ravichandran, Sudhirkumar Raojibhai Patel, Anand Raj Rajan, Ashok Swamisharan Pathak, Saumya Srivastava
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Publication number: 20140116923Abstract: The present invention relates to a catalyst for Fluid Catalytic Cracking (FCC) which contains a combination of a FCC catalyst component and an additive component with certain physical properties attributed therein. The present invention is also directed to provide methods for the preparation of the catalyst for FCC. The admixture of the FCC catalyst component and additive component is used in cracking of hydrocarbon feedstock containing hydrocarbons of higher molecular weight and higher boiling point and/or olefin gasoline naphtha feedstock for producing lower yield of fuel gas with out affecting the conversion and yield of general cracking products such as gasoline, propylene and C4 olefins.Type: ApplicationFiled: January 6, 2014Publication date: May 1, 2014Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Srikanta DINDA, Praveen Kumar CHINTHALA, Amit GOHEL, Ashwani YADAV, Sukumar MANDAL, Gopal RAVICHANDRAN, Asit Kumar DAS
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Publication number: 20130023710Abstract: The present invention relates to a Fluid Catalytic Cracking (FCC) additive preparation process and composition, which has high efficiency in the production of light olefins C2, C3 and C4 hydrocarbons, specifically propylene. The present invention discloses the stabilization of medium pore zeolite specifically ZSM-5 using optimum phosphate salts at a pH in the range 7-9 with synergetic combination of silica rich binder to produce FCC additive having excellent stability under severe hydrothermal conditions.Type: ApplicationFiled: September 13, 2011Publication date: January 24, 2013Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Gopal Ravichandran, Praveen Kumar Chinthala, Tejas Doshi, Arun Kumar, Amit Gohel, Sukumar Mandal, Asit Kumar Das, Srikanta Dinda, Amit Kumar Parekh
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Patent number: 7968079Abstract: The present disclosure provides a ready-to-use seed composition water, a source of silica, a source of alumina, and Na20, wherein the molar ratio of H20:Na20 ranges from 5 to 20, Na20:SiO2 ranges from 0.4 to 5 and SiO2:Al203 ranges from 1.3 to 5 used in the preparation of a synthetic faujasite zeolite which has high thermal stability and higher crystallite size. It further provides a process for preparing the ready-to-use seed composition for preparation of synthetic faujasite zeolite that requires lower crystallization time. The present disclosure provides a seed composition that does not require maturing time and a reaction gel composition that has low water and soda content. The present disclosure further provides a process for the preparation of synthetic faujasite zeolite by blending seed and reaction gel reaction composition to form a seed gel composition and subjecting it to crystallization.Type: GrantFiled: January 8, 2008Date of Patent: June 28, 2011Assignee: Indian Oil Corporation LimitedInventors: Biswanath Sarkar, Kapil Arya, Gopal Ravichandran, Mohan Prabhu Kuvettu, Shiba Prasad Choudhury, Venkatachalam Krishnan, Sanjay Kumar Ray, Jayaraj Christopher, Satish Makhija
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Patent number: 7517827Abstract: The present invention relates to a cracking catalyst composition for cracking heavy hydrocarbon and processes for preparing the catalyst. The process can include treating zeolite with sodium free basic compound with or without phosphate, treating an alumina with a dilute acid, acidifying a colloidal silica, preparing a fine slurry of clay with a source of phosphate, adding alumina slurry and/or acidified colloidal silica to clay phosphate slurry, adding treated zeolite and spray-drying the slurry and calcining the same to obtain a cracking catalyst having adequate ABD and attrition resistance property.Type: GrantFiled: August 17, 2006Date of Patent: April 14, 2009Assignee: Indian Oil Company LtdInventors: Gopal Ravichandran, Biswanath Sarkar, Mohan P. Kuvettu, Deepa Megavathu, Sanjay K Ray, Shiba P. Choudhury, Sudipta Roy, Venkatachalam Krishnan, Satish Makhija
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Publication number: 20080182744Abstract: The present disclosure provides a ready-to-use seed composition used in the preparation of a synthetic faujasite zeolite which has high thermal stability and higher crystallite size. It further provides a process for preparing the ready-to-use seed composition for preparation of synthetic faujasite zeolite that requires lower crystallization time. The present disclosure provides a seed composition that does not require maturing time and a reaction gel composition that has low water and soda content. The present disclosure further provides a process for the preparation of synthetic faujasite zeolite by blending seed and reaction gel reaction composition to form a seed gel composition and subjecting it to crystallization.Type: ApplicationFiled: January 8, 2008Publication date: July 31, 2008Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Biswanath SARKAR, Kapil ARYA, Gopal RAVICHANDRAN, Mohan Prabhu KUVETTU, Shiba Prasad CHOUDHURY, Venkatachalam KRISHNAN, Sanjay Kumar RAY, Jayaraj CHRISTOPHER, Satish MAKHIJA
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Publication number: 20070203017Abstract: The present invention relates to a cracking catalyst composition for cracking heavy hydrocarbon and processes for preparing the catalyst. The process can include treating zeolite with sodium free basic compound with or without phosphate, treating an alumina with a dilute acid, acidifying a colloidal silica, preparing a fine slurry of clay with a source of phosphate, adding alumina slurry and/or acidified colloidal silica to clay phosphate slurry, adding treated zeolite and spray-drying the slurry and calcining the same to obtain a cracking catalyst having adequate ABD and attrition resistance property.Type: ApplicationFiled: August 17, 2006Publication date: August 30, 2007Inventors: Gopal Ravichandran, Biswanath Sarkar, Mohan P. Kuvettu, Deepa Megavathu, Sanjay K. Ray, Shiba P. Choudhury, Sudipta Roy, Venkatachalam Krishnan, Satish Makhija
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Publication number: 20070059238Abstract: The present invention relates to a process for enhancing the yield of molecular sieve zeolite during the synthesis from a sodium aluminosilicate reaction mixture, said process comprising the step of adding at an intermediate stage of crystallization a source of aluminum to the sodium aluminosilicate reaction mixture and allowing the mixture to crystallize.Type: ApplicationFiled: May 30, 2006Publication date: March 15, 2007Inventors: Ram Thakur, Mohan Kuvettu, Biswanath Sarkar, Venkatachalam Krishnan, Mitra Patel, Sanjay Ray, Gopal Ravichandran, Satish Makhija, Sobhan Ghosh