AUTHOR=Favre Eric TITLE=Specialty Grand Challenges in Separation Processes JOURNAL=Frontiers in Chemical Engineering VOLUME=2 YEAR=2020 URL=https://www.frontiersin.org/journals/chemical-engineering/articles/10.3389/fceng.2020.00001 DOI=10.3389/fceng.2020.00001 ISSN=2673-2718