Refrigeration process and system for recovering cold from methane by refrigerants

US8826677B2 · kind B2 · utility

Assignee

• Association Pour La Recherche Developpement Des Methodes Et Processus Industriels · FR

Inventors

• Denis Clodic · Paris, FR
• Mourad Younes · Abqaiq, SA
• Youssef Riachi · Khenchara, LB

Key dates

• Filing date: Mar 29, 2010
• Grant date: Sep 9, 2014
• Expiry date: Nov 9, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A refrigeration system includes a plurality of heat exchangers (E1, E2, E3) in cascade, each of said heat exchangers including: a flow (150) of cold-producing liquefied methane; a high-pressure flow (122) of a two-phase mixture of refrigerant fluids giving up in heat and including refrigerant fluids having a low normal boiling temperature; and a low-pressure flow (100) of a cold-producing two-phase mixture of said refrigerant fluids.