Method for the liquefaction of a hydrocarbon-rich gas stream containing aromatic and heavy hydrocarbons
US5979181A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Jun 5, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/912
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method for the liquefaction of a hydrocarbon-rich gas stream containing aromatic and heavy hydrocarbons, in particular a natural gas stream, where, prior to the liquefaction, a separation of the aromatic and the heavy hydrocarbons, in particular the C.sub.5+ hydrocarbons, comprises PA1 a) a fraction (9, 11, 14) containing heavy hydrocarbons is admixed to the hydrocarbon-rich gas stream (1) to be liquefied, PA1 b) this mixed fraction (1, 2) is supplied to a separator (D), PA1 c) a gas fraction (3) freed of aromatic and heavy hydrocarbons is withdrawn from separator (D) and liquefied (E2), and PA1 d) a liquid fraction (5) enriched with aromatic and heavy hydrocarbons is withdrawn from separator (D).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.