Separation of caffeine from supercritical carbon dioxide with a zeolite membrane

Yoshihiro Tokunaga; Tomoyuki Fujii; Kozo Nakamura

doi:10.1271/bbb.61.1024

Separation of caffeine from supercritical carbon dioxide with a zeolite membrane

Yoshihiro Tokunaga, Tomoyuki Fujii, Kozo Nakamura

AGR - Agricultural Chemistry

The University of Tokyo

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Caffeine was separated from supercritical carbon dioxide with a zeolite membrane that had been tested for pervaporation. The pore size of the NaY zeolite membrane was evaluated to be of subnanometer scale from the result of a Dubinin-Astakhov analysis. The rejection of caffeine was 0.98 by the zeolite membrane which would make it applicable for SCCO₂ membrane separation.

Original language	English
Pages (from-to)	1024-1026
Number of pages	3
Journal	Bioscience, Biotechnology and Biochemistry
Volume	61
Issue number	6
DOIs	https://doi.org/10.1271/bbb.61.1024
Publication status	Published - 1997 Jan

Keywords

Caffeine
Dubinin–Astakhov analysis
Membrane separation
Supercritical carbon dioxide
Zeolite membrane

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10.1271/bbb.61.1024

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title = "Separation of caffeine from supercritical carbon dioxide with a zeolite membrane",

abstract = "Caffeine was separated from supercritical carbon dioxide with a zeolite membrane that had been tested for pervaporation. The pore size of the NaY zeolite membrane was evaluated to be of subnanometer scale from the result of a Dubinin-Astakhov analysis. The rejection of caffeine was 0.98 by the zeolite membrane which would make it applicable for SCCO2 membrane separation.",

keywords = "Caffeine, Dubinin–Astakhov analysis, Membrane separation, Supercritical carbon dioxide, Zeolite membrane",

author = "Yoshihiro Tokunaga and Tomoyuki Fujii and Kozo Nakamura",

note = "Funding Information: Acknowledgments. We thank Mitsui Engineering & Shipbuilding Co. for kindly providing the zeolite membrane. This work supported in part by a Grant-in-Aid for Scientific Research (No. 08556019) from the Ministry of Education, Science, and Culture of Japan.",

year = "1997",

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AU - Tokunaga, Yoshihiro

AU - Fujii, Tomoyuki

AU - Nakamura, Kozo

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PY - 1997/1

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N2 - Caffeine was separated from supercritical carbon dioxide with a zeolite membrane that had been tested for pervaporation. The pore size of the NaY zeolite membrane was evaluated to be of subnanometer scale from the result of a Dubinin-Astakhov analysis. The rejection of caffeine was 0.98 by the zeolite membrane which would make it applicable for SCCO2 membrane separation.

AB - Caffeine was separated from supercritical carbon dioxide with a zeolite membrane that had been tested for pervaporation. The pore size of the NaY zeolite membrane was evaluated to be of subnanometer scale from the result of a Dubinin-Astakhov analysis. The rejection of caffeine was 0.98 by the zeolite membrane which would make it applicable for SCCO2 membrane separation.

KW - Caffeine

KW - Dubinin–Astakhov analysis

KW - Membrane separation

KW - Supercritical carbon dioxide

KW - Zeolite membrane

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Separation of caffeine from supercritical carbon dioxide with a zeolite membrane

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Keywords

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