公开(公告)号：US10702795B2

公开(公告)日：2020-07-07

申请号：US15409218

申请日：2017-01-18

Applicant: Indian Oil Corporation Limited

Inventor： Prakash Bhagwant Bhalavi ,  Irudayaraj Devotta ,  Naduhatty Selai Raman ,  Brijesh Kumar ,  Biswapriya Das

IPC: B01D3/40 ,  C07C7/08 ,  B01D3/14 ,  B01D5/00 ,  C07C7/09 ,  C07C7/00

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 (δd) 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.

公开(公告)号：US20150166903A1

公开(公告)日：2015-06-18

申请号：US14414408

申请日：2013-07-12

Applicant: INDIAN OIL CORPORATION LIMITED

Inventor： Naduhatty Selai Raman ,  Palvannan Mohanasundaram ,  Irudayaraj Devotta ,  Kishan Chand Sharma ,  Vivekanand Kagdiyal ,  Deepak Saxena ,  Brijesh Kumar ,  Anurag Ateet Gupta ,  Santanam Rajagopal ,  Ravinder Kumar Malhotra

IPC: C10G53/04 ,  C08L95/00

CPC classification number: C10G53/04 ,  C08L91/00 ,  C08L95/00 ,  C08L2555/74 ,  C10G53/06

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.

Abstract translation: 本发明涉及一种用于制备沥青的芳香族富集脱沥青油提取物馏分。 本发明还涉及制备用于制备沥青的富含芳烃的脱沥青油提取物馏分的方法。 本发明还涉及使用富含芳烃的脱沥青油提取物馏分制备沥青的沥青和方法。 根据本发明获得的富含芳烃的脱沥青油提取物组分可用于制备多种级别的沥青。 此外，根据本发明获得的沥青含有极低浓度的多环芳族化合物，更特别地苯并（a）芘。