Processes for separating dimethyl biphenyl isomers using zeolite adsorbents

US10093597B1 · kind B1 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Changyub Paek · Bound Brook Junction, US
• Michael P. Lanci · Flemington, US
• Randall D. Partridge · Califon, US
• Allen W. Burton · Richmond, US
• Peter I. Ravikovitch · Princeton, US
• Sumathy Raman · Annandale, US

Key dates

• Filing date: Feb 1, 2018
• Grant date: Oct 9, 2018
• Expiry date: Feb 1, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J20/2808
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a process for separating one or more 3,3′-, 3,4′- and 4,4′-dimethyl biphenyl isomers, a feed comprising the isomers is contacted with an adsorbent containing a zeolite having a largest diffuse along dimension of at least 4 Angstroms. The adsorbents provide selective adsorption of 4,4′-dimethyl biphenyl.