Separation of nitrogen from hydrocarbon gas using pyrolyzed sulfonated macroporous ion exchange resin

US10661219B2 · kind B2 · utility

Assignee

• DDP Specialty Electronic Materials US, LLC. · US

Inventors

• Junqiang Liu · Manvel, US
• Chan Han · Midland, US
• H. Robert Goltz · Midland, US
• Matthew L. Rodgers · Chipping Ongar, GB
• Scott T. Matteucci · Midland, US
• Brandon J. Kern · Midland, US

Key dates

• Filing date: Jan 6, 2016
• Grant date: May 26, 2020
• Expiry date: Apr 23, 2036

Classification

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

Abstract

A method for separating N2 from a hydrocarbon gas mixture containing N2 comprising the steps of: i) providing a bed of adsorbent selective for N2; (ii) passing the hydrocarbon gas mixture through the bed of adsorbent to at least partially remove N2 from the gas mixture to produce: (a) N2-loaded adsorbent and (b) N2-depleted hydrocarbon gas mixture; iii) recovering the N2-depleted hydrocarbon gas mixture; iv) regenerating the N2-loaded adsorbent by at least partially removing N2 from the adsorbent; and v) sequentially repeating steps (ii) and (iii) using regenerated adsorbent from step (iv); wherein the adsorbent comprises a pyrolized sulfonated macroporous ion exchange resin.