Patent · US Expired

Processes and systems for liquefying natural gas

US6647744B2 · kind B2 · utility

10Cited by
5References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 28, 2003
Grant dateNov 18, 2003
Priority date
Expiry dateJan 28, 2023

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF25J1/0294
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Natural gas liquefaction systems are provided wherein the dedicated compression strings normally found in each liquefaction train of a multi-train LNG plant are replaced by common compression strings which, in turn, supply the respective refrigerants (e.g. propane and mixed refrigerant) to more than one of the multi-trains. This allows the refrigerants to be treated as a utility in that all of the refrigerants are supplied from a respective single source by the common compression strings.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.