ICCAS OpenIR
Pressure tuning of reaction equilibrium of esterification of acetic acid with ethanol in compressed CO2
Hou, ZS; Han, BX; Zhang, XG; Zhang, HF; Liu, ZM
2001-05-17
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1089-5647
Volume105Issue:19Pages:4510-4513
AbstractThe esterification of acetic acid and ethanol in compressed CO2 was studied at 333.2 K and at pressures up to 16 MPa, and the original. molar ratio of the components was CO2: CH3COOH:CH3CH2OH:p-toluenesulfonic acid (catalyst) = 90.5:5:0.05. The phase behavior and the isothermal compressibility (k(T)) of reaction system was also determined under the reaction conditions. The conversion increases with increasing pressure in the two-phase region and reaches a maximum in the critical region of the reaction system where the system just becomes one phase. Then the conversion or apparent equilibrium constant K-x decreases with pressure after the pressure is higher than the critical value. In the supercritical region where the system is one phase, K-x is closely related to the isothermal compressibility and degree of inhomogeneity of the fluid, which is often referred to as the local density and/or local composition enhancement. At the higher pressures the "clustering" in the reaction system is not significant and the K-x is close to that of the reaction in the absence of CO2.
DOI10.1021/jp003903n
Indexed BySCI
Language英语
WOS IDWOS:000168803800065
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77164
Collection中国科学院化学研究所
Corresponding AuthorHan, BX
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Hou, ZS,Han, BX,Zhang, XG,et al. Pressure tuning of reaction equilibrium of esterification of acetic acid with ethanol in compressed CO2[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2001,105(19):4510-4513.
APA Hou, ZS,Han, BX,Zhang, XG,Zhang, HF,&Liu, ZM.(2001).Pressure tuning of reaction equilibrium of esterification of acetic acid with ethanol in compressed CO2.JOURNAL OF PHYSICAL CHEMISTRY B,105(19),4510-4513.
MLA Hou, ZS,et al."Pressure tuning of reaction equilibrium of esterification of acetic acid with ethanol in compressed CO2".JOURNAL OF PHYSICAL CHEMISTRY B 105.19(2001):4510-4513.
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