Removal of diamondoid compounds from hydrocarbonaceous fractions
US4952747A · kind A · utility
22Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | May 26, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G21/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
According to this invention, substantially hydrocarbonaceous fractions comprising diamondoid compounds are peculiarly suitable for separation by a thermal gradient diffusion process. Applicability of this process to this service is dependent upon the fact that the diamondoid compounds exhibit a large change in viscosity relative to temperature, that is, their viscosity goes down significantly per degree of increase in temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.