Process for separating hydrocarbon compounds

US11254626B2 · kind B2 · utility

Assignee

• Lummus Technology LLC · US

Inventors

• Sam Weinberger · San Francisco, US
• Justin Dwight Edwards · Pacifica, US
• Julian Wolfenbarger · Landenberg, US
• Srinivas Vuddagiri · Davis, US
• Iraj Isaac Rahmim · Voorhees, US

Key dates

• Filing date: Feb 27, 2019
• Grant date: Feb 22, 2022
• Expiry date: Mar 11, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25J2245/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Disclosed herein are processes for producing and separating ethane and ethylene. In some embodiments, an oxidative coupling of methane (OCM) product gas comprising ethane and ethylene is introduced to a separation unit comprising two separators. Within the separation unit, the OCM product gas is separated to provide a C2-rich effluent, a methane-rich effluent, and a nitrogen-rich effluent. Advantageously, in some embodiments the separation is achieved with little or no external refrigeration requirement.