N -Aryl–linked spirocyclic polymers for membrane separations of complex hydrocarbon mixtures

Autor:	Kim E. Jelfs, Ji-Hoon Kim, Scott J. Hoy, Irene Bechis, Benjamin A. McCool, Daeok Kim, J.R. Johnson, Neel Rangnekar, M. G. Finn, Andrew G. Livingston, Ronita Mathias, Kirstie A. Thompson, Ryan P. Lively, Andrew Tarzia
Přispěvatelé:	Exxonmobil Research and Engineering Company, The Royal Society, Commission of the European Communities
Jazyk:	angličtina
Předmět:	General Science & Technology INTRINSIC MICROPOROSITY Synthetic membrane EFFICIENT 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention chemistry.chemical_compound law Distillation PIMS chemistry.chemical_classification Multidisciplinary Light crude oil Science & Technology Aryl ALGORITHMS Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Hydrocarbon mixtures Multidisciplinary Sciences Boiling point Membrane chemistry Chemical engineering Science & Technology - Other Topics 0210 nano-technology
Zdroj:	Science
ISSN:	1095-9203 0036-8075
DOI:	10.1126/science.aba9806
Popis:	Separating organics without distillation Hydrocarbon distillation is a widespread and energy-intensive process. Membranes might offer an alternative approach, but few can survive immersion in organic solvents nor are they able to extract relatively small molecules. Thompson et al. developed a series of polymers of intrinsic microporosity that they used for membrane-based separations of organic compounds in an organic solvent (see the Perspective by Brennecke and Freeman). The new membrane has a molecular weight cutoff of 253 daltons, far lower than existing ones closer to 600 daltons. The polymers were used to separate light shale crude oil and succeeded in fractionation of molecular weights of about 170 daltons. Science this issue p. 310 ; see also p. 254
Databáze:	OpenAIRE
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