Patents by Inventor Gautam THAPA
Gautam THAPA 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: 10676675Abstract: 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: GrantFiled: December 28, 2016Date of Patent: June 9, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Ram Mohan Thakur, Pradeep Ponoly Ramachandran, Terapalli Hari Venkata Devi Prasad, Gautam Thapa, Debasis Bhattacharyya, Brijesh Kumar, Santanam Rajagopal
-
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
-
Patent number: 10646863Abstract: 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: GrantFiled: March 12, 2018Date of Patent: May 12, 2020Assignee: Indian Oil Corporation LimitedInventors: Shoeb Hussain Khan, Vikas Badhan, Venkata Hari Prasad Gupta Bandaru, Gautam Thapa, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Sankara Sri Venkata Ramakumar
-
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
-
Patent number: 10478840Abstract: 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: GrantFiled: March 7, 2018Date of Patent: November 19, 2019Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Shoeb Hussain Khan, Venkata Hari Prasad Gupta Bandaru, Jagdev Kumar Dixit, Gautam Thapa, Satheesh Vetterkunnel Kumaran, Debasis Bhattacharyya, Sankara Sri Venkata Ramakumar
-
Publication number: 20190001353Abstract: 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: ApplicationFiled: March 7, 2018Publication date: January 3, 2019Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Shoeb Hussain KHAN, Venkata Hari Prasad Gupta BANDARU, Jagdev Kumar DIXIT, Gautam THAPA, Satheesh Vetterkunnel KUMARAN, Debasis BHATTACHARYYA, Sankara Sri Venkata RAMAKUMAR
-
Publication number: 20180345267Abstract: According to an embodiment, 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 is disclosed. 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: ApplicationFiled: March 12, 2018Publication date: December 6, 2018Inventors: Shoeb Hussain KHAN, Vikas BADHAN, Venkata Hari Prasad Gupta BANDARU, Gautam THAPA, Satheesh Vetterkunnel KUMARAN, Debasis BHATTACHARYYA, Sankara Sri Venkata RAMAKUMAR
-
Publication number: 20180016503Abstract: 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: ApplicationFiled: July 14, 2017Publication date: January 18, 2018Inventors: 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: 9868903Abstract: The present invention relates to a liquid phase additive comprising an alkyl nitrate; a petroleum sulphonates; an aliphatic, aromatic, cyclohexylamines or hetroalkylated lower amines; a hindered phenol based compounds; a phosphate esters and an aliphatic alcohols for use in delayed coking process with decreased coke yield and increased yield of liquid and/or gaseous product and a process for preparing the liquid phase additive. The present invention also relates to a process for thermal cracking of petroleum residue producing petroleum coke and lighter hydrocarbon products by using liquid phase additive.Type: GrantFiled: March 25, 2015Date of Patent: January 16, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Satyen Kumar Das, Ponoly Ramachandran Pradeep, Terapalli Hari Venkata Devi Prasad, Jagdev Kumar Dixit, Gautam Thapa, Ram Mohan Thakur, Vinod Kumar Sharma, Debasis Bhattacharyya, Suresh Kumar Puri, Anurag Ateet Gupta, Brijesh Kumar, Biswapriya Das, Ravinder Kumar Malhotra
-
Publication number: 20170158963Abstract: 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: ApplicationFiled: December 28, 2016Publication date: June 8, 2017Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Ram Mohan THAKUR, Pradeep Ponoly RAMACHANDRAN, Terapalli Hari Venkata DEVI PRASAD, Gautam THAPA, Debasis BHATTACHARYYA, Brijesh KUMAR, Santanam RAJAGOPAL
-
Publication number: 20170145322Abstract: 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: ApplicationFiled: August 15, 2016Publication date: May 25, 2017Inventors: 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
-
Publication number: 20150275084Abstract: The present invention relates to a liquid phase additive comprising an alkyl nitrate; a petroleum sulphonates; an aliphatic, aromatic, cyclohexylamines or hetroalkylated lower amines; a hindered phenol based compounds; a phosphate esters and an aliphatic alcohols for use in delayed coking process with decreased coke yield and increased yield of liquid and/or gaseous product and a process for preparing the liquid phase additive. The present invention also relates to a process for thermal cracking of petroleum residue producing petroleum coke and lighter hydrocarbon products by using liquid phase additive.Type: ApplicationFiled: March 25, 2015Publication date: October 1, 2015Inventors: Satyen Kumar DAS, Ponoly Ramachandran PRADEEP, Terapalli Hari Venkata Devi PRASAD, Jagdev Kumar DIXIT, Gautam THAPA, Ram Mohan THAKUR, Vinod Kumar SHARMA, Debasis BHATTACHARYYA, Suresh Kumar PURI, Anurag Ateet GUPTA, Brijesh KUMAR, Biswapriya DAS, Ravinder Kumar MALHOTRA
-
Publication number: 20150129460Abstract: The present invention is directed to novel thermal cracking additive compositions for reduction of coke yield in Delayed Coking process and method for preparing the same. The present invention also provides that the thermal cracking additive compositions of the present invention are in micron-size and nano-size. Further, the present invention provides a process of thermal cracking of heavy petroleum residue used in petroleum refineries using Delayed Coking process to produce petroleum coke and lighter hydrocarbon products with decreased coke yield and increased yield of liquid and/or gaseous products.Type: ApplicationFiled: November 13, 2014Publication date: May 14, 2015Inventors: Terapalli Hari Venkata Devi PRASAD, Ponoly Ramachandran PRADEEP, Satyen Kumar DAS, Jagdev Kumar DIXIT, RAJESH, OM PARKASH, Samik Kumar HAIT, Eswar Prasad DALAI, Ram Mohan THAKUR, Gautam THAPA, Debasis BHATTACHARYYA, Brijesh KUMAR, Biswapriya DAS, Santanam RAJAGOPAL, Ravinder Kumar MALHOTRA
-
Publication number: 20140175187Abstract: 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: ApplicationFiled: October 8, 2013Publication date: June 26, 2014Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Ram Mohan THAKUR, Pradeep Ponoly RAMACHANDRAN, Terapalli Hari Venkata DEVI PRASAD, Gautam THAPA, Debasis BHATTACHARYYA, Brijesh KUMAR, Santanam RAJAGOPAL