New Invention Profile
| Publication No: | IN202431000817 [India] | Application No: | IN202431000817 |
| Title: | High softening point coal tar-petroleum hybrid pitch | ||
| Publication Date: | 11-07-2025 | File Date: | 04-01-2024 |
| Inventor(s): | Ajay Kumar Gupta; Subhadra Sen; Manoj Srivastava; Manoj Kumar Thapliyal; Indu Shekhar; Mudavath Ravi; Nitya Nand Bahuguna; Rajesh Sharma | ||
| IPC Classification: | ,C08L95/00, C10C1/00, C10C1/04, C10C1/16, C10C3/00, C10C3/02, C10C3/10 | ||
| Abstract: | A method to form a high softening point coal tar -petroleum hybrid pitch (302). The method includes mixing a toluene solvent (104) with a dehydrated coal tar (102) to filter a Toluene Insoluble (TI) from the dehydrated coal tar (102) and form a TI-free coal tar (106). The method further includes mixing a petroleum derived feedstock (108) with the TI-free coal tar (106), to form a coal tar ? petroleum mixture (110). The method further includes heating the coal tar ? petroleum mixture (110) at a first temperature for a first period, under a purging of inert gas at a first flow rate, to form a precursor pitch (202). The method further includes heating the precursor pitch (202) at a second temperature for a second period, under a purging of air at a second flow rate, to form the high softening point coal tar ? petroleum hybrid pitch (302). |
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Industrial Applications
Fuels and Lubricants Processes [Fuels and Lubricants]