Patents by Inventor Eswar Prasad DALAI

Eswar Prasad DALAI 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: 11000843
    Abstract: The present invention relates to preparation of catalyst for production of olefinic hydrocarbons by dehydrogenation of their corresponding paraffins, particularly propylene from propane, comprising a metal oxide or combination of metal oxides utilizing spent catalyst from Fluid Catalytic Cracking (FCC)/Resid Fluid Catalytic Cracking (RFCC) processes. The metal oxides are possibly from transition metal group, particularly from groups VB, VIB, VIII, and Lanthanide series, and at least one metal from alkali group. The catalyst support used is spent catalyst or modified spent catalyst or combination thereof. The said catalyst can be used for both non-oxidative Propane Dehydrogenation (PDH) and Oxidative Propane Dehydrogenation (OPDH) process in the presence of CO2.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: May 11, 2021
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Hima Bindu Doosa, Ram Mohan Thakur, Vineeth Venu Nath, Eswar Prasad Dalai, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, 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: 20190262821
    Abstract: The present invention relates to preparation of catalyst for production of olefinic hydrocarbons by dehydrogenation of their corresponding paraffins, particularly propylene from propane, comprising a metal oxide or combination of metal oxides utilizing spent catalyst from Fluid Catalytic Cracking (FCC)/Resid Fluid Catalytic Cracking (RFCC) processes. The metal oxides are possibly from transition metal group, particularly from groups VB, VIB, VIII, and Lanthanide series, and at least one metal from alkali group. The catalyst support used is spent catalyst or modified spent catalyst or combination thereof. The said catalyst can be used for both non-oxidative Propane Dehydrogenation (PDH) and Oxidative Propane Dehydrogenation (OPDH) process in the presence of CO2.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 29, 2019
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Hima Bindu DOOSA, Ram Mohan THAKUR, Vineeth Venu NATH, Eswar Prasad DALAI, Debasis BHATTACHARYYA, Sanjiv Kumar MAZUMDAR, Sankara Sri Venkata RAMAKUMAR
  • Patent number: 10280372
    Abstract: The present invention relates to a novel catalyst composition for catalytic cracking of hydrocarbon streams to enhance the yield of light olefins. The catalyst composition for the cracking of hydrocarbon feed streams to light olefins, comprises a USY zeolite with silica/alumina ratio of more than 40, pentasil zeolite, a phosphate compound and alumina silica binder. The yield of olefins is further increased when the catalyst composition is impregnated with a cerium oxide. The present invention also provides a process of increasing the yield of light olefins from hydrocarbon feed streams comprising contacting the hydrocarbon streams with catalyst compositions of the present invention.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: May 7, 2019
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Biswanath Sarkar, Satyen Kumar Das, Somnath Kukade, Ganga Shankar Mishra, Eswar Prasad Dalai, Velusamy Chidambaram, Sudhir Kumar Pandey, Ram Mohan Thakur, Debasis Bhattacharyya, Santanam Rajagopal
  • Publication number: 20170129776
    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: Application
    Filed: August 18, 2016
    Publication date: May 11, 2017
    Inventors: Sadhullah MUKTHIYAR, Sayapaneni Gopinath BHANUPRASAD, Gadari SAIDULU, Eswar Prasad DALAI, Sanjeev SINGH, Satheesh Vetterkunnel KUMARAN, Debasis BHATTACHARYYA, Brijesh KUMAR, Biswapriya DAS
  • Publication number: 20160296925
    Abstract: The present invention relates to a novel catalyst composition for catalytic cracking of hydrocarbon streams to enhance the yield of light olefins. The catalyst composition for the cracking of hydrocarbon feed streams to light olefins, comprises a USY zeolite with silica/alumina ratio of more than 40, pentasil zeolite, a phosphate compound and alumina silica binder. The yield of olefins is further increased when the catalyst composition is impregnated with a cerium oxide. The present invention also provides a process of increasing the yield of light olefins from hydrocarbon feed streams comprising contacting the hydrocarbon streams with catalyst compositions of the present invention.
    Type: Application
    Filed: January 7, 2014
    Publication date: October 13, 2016
    Inventors: Biswanath SARKAR, Satyen Kumar DAS, Somnath KUKADE, Ganga Shankar MISHRA, Eswar Prasad DALAI, Velusamy CHIDAMBARAM, Sudhir Kumar PANDEY, Ram Mohan THAKUR, Debasis BHATTACHARYYA, Santanam RAJAGOPAL
  • Publication number: 20150129460
    Abstract: 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: Application
    Filed: November 13, 2014
    Publication date: May 14, 2015
    Inventors: 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