In:
AIChE Journal, Wiley, Vol. 61, No. 9 ( 2015-09), p. 2977-2984
Abstract:
Liquid crystals, elongated molecules with a structured liquid phase, may be used as new solvents for CO 2 capture. However, no molecule has been found yet with optimal properties. Therefore, mixtures of two liquid crystals and CO 2 are investigated. Also, the phase behavior of some binary subsystems of the investigated ternary systems is studied for comparison. In the mixtures investigated, 4,4′‐pentyloxycyanobiphenyl + 4,4′‐heptyloxycyanobiphenyl + CO 2 and 4,4′‐propylcyclohexylbenzonitrile + 4,4′‐heptylcyclohexylbenzonitrile + CO 2 , the nematic phases form a nematic homogeneous solution and the solid phases form an eutectic system, leading to a material with improved properties for CO 2 capture. Moreover, the ternary mixture of 4,4′‐propylcyclohexylbenzonitrile + 4,4′‐heptylcyclohexylbenzonitrile + CO 2 showed an increased solubility of CO 2 compared with the binary subsystems. © 2015 American Institute of Chemical Engineers AIChE J , 61: 2977–2984, 2015
Type of Medium:
Online Resource
ISSN:
0001-1541
,
1547-5905
Language:
English
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
2020333-0
detail.hit.zdb_id:
240008-X
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