Standalone high-pressure heavies removal unit for LNG processing
US11604025B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2020 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Oct 16, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2270/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a dry feed gas is received. The dry feed gas is chilled with clean vapor from a heavies removal column to form a chilled feed gas. The chilled feed gas is partially condensed into a vapor phase and a liquid phase. The liquid phase retains freezing components. The freezing components are extracted using a reflux stream in the heavies removal column. The freezing components are removed as a condensate. The vapor phase is compressed into a clean feed gas. The clean feed gas is free of the freezing components for downstream liquefaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.