Coal processing system for reducing the amount of insoluble coal products in a light fraction stream
US4070267A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 1, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Jun 1, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/045
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved system for processing coal wherein a feed mixture (comprising a dissolving solvent, insoluble coal products and soluble coal products) is separated in a first separation zone, provided with a coalescing section, into a first heavy fraction and a first light fraction (comprising soluble coal products, the dissolving solvent and some insoluble coal products), and a portion of the insoluble coal products is separated from the first light fraction by contacting at least the first light fraction with the coalescing section. Such contacting reduces the amount of insoluble coal products in the first light fraction withdrawn from the first separation zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.