Combined air separation natural gas liquefaction plant
US7143606B2 · kind B2 · utility
103Cited by
12References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 8, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Dec 31, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2270/906
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In an integrated process and apparatus for the separation of air by cryogenic distillation and liquefaction of natural gas in which at least part of the refrigeration required to liquefy the natural gas is derived from at least one cryogenic air distillation plant comprising a main heat exchanger (7) and distillation columns (15, 17), wherein the natural gas (25) liquefies by indirect heat exchange in a heat exchanger (7, 32, 34) with a cold fluid (21, 26), the cold fluid being sent to the heat exchanger at least partially in liquid form and undergoing at least a partial vaporisation in the heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.