Patents by Inventor Irudayaraj Devotta

Irudayaraj Devotta 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).

  • Process for high purity hexane and production thereof
    Patent number: 10702795
    Abstract: 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: Grant
    Filed: January 18, 2017
    Date of Patent: July 7, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Prakash Bhagwant Bhalavi, Irudayaraj Devotta, Naduhatty Selai Raman, Brijesh Kumar, Biswapriya Das
  • PROCESS FOR HIGH PURITY HEXANE AND PRODUCTION THEREOF
    Publication number: 20170203231
    Abstract: 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: Application
    Filed: January 18, 2017
    Publication date: July 20, 2017
    Inventors: Prakash Bhagwant BHALAVI, Irudayaraj DEVOTTA, Naduhatty Selai RAMAN, Brijesh KUMAR, Biswapriya DAS
  • PROCESS FOR PRODUCING VARIOUS VISCOSITY GRADES OF BITUMEN
    Publication number: 20150166903
    Abstract: The present invention relates to an aromatic enriched deasphalted oil extract fraction for preparing bitumen. The present invention also relates to a process for preparing the aromatic enriched deasphalted oil extract fraction for preparing bitumen. The present invention further relates to bitumen and process for preparing the bitumen using the aromatic enriched deasphalted oil extract fraction. The aromatic enriched deasphalted oil extract fraction obtained in accordance with the present invention can be used preparing plurality of grades of bitumen. Also, bitumen obtained in accordance with the present invention contains extremely low concentration of poly cyclic aromatics and more particularly benzo(a)pyrene.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 18, 2015
    Inventors: Naduhatty Selai Raman, Palvannan Mohanasundaram, Irudayaraj Devotta, Kishan Chand Sharma, Vivekanand Kagdiyal, Deepak Saxena, Brijesh Kumar, Anurag Ateet Gupta, Santanam Rajagopal, Ravinder Kumar Malhotra