Modularized LNG separation device and flash gas heat exchanger
US10982898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2018 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Nov 23, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2290/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Described herein are methods and systems for the liquefaction of natural gas to produce a LNG product. The methods and systems use an apparatus for separating a flash gas from a liquefied natural gas (LNG) stream to produce a LNG product and recovering refrigeration from the flash gas. The apparatus includes a shell casing enclosing a heat exchange zone comprising a coil wound heat exchanger, and a separation zone. The heat exchange zone is located above and in fluid communication with the separation zone. Flash gas is separated from the LNG product in the separation zone and flows upwards from the separation zone into the heat exchange zone where refrigeration is recovered from the separated flash gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.