Vapor-Liquid Equilibrium Measurement of Limonene �-Citronellol and Citronellal �-Citronellol Binary Systems in Kaffir Lime Essential Oil at Vacuum Pressures

Devianda, Putri Amalia; Kuswandi, Kuswandi

doi:10.2139/ssrn.4329752

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experimental data's compatibility with established vapor pressure data of pure ethanol was confirmed by calculating the absolute deviation (AD) through equation ( 2) between the experimental temperature and Wagner's equation [23]. This calculation was averaged across the tested pressure points to obtain the absolute average deviation (AAD) through equation ( 3) [24]. The comparison of experimental and calculated data is presented in The findings demonstrate a strong concurrence between the data, yielding a temperature average absolute deviation (AAD T) of 1.13 K. The consistent results obtained from this reliability test led to the conclusion that the apparatus is suitable for use in VLE research.…”

Section: Reliability Test Of the Apparatusmentioning

confidence: 99%

“…The apparatus used in this study has successfully conducted several research papers in the topic of essential oil VLE, including most recently the isobaric vapor−liquid equilibrium of citronellal + geraniol and citronellal + citronellol binary systems experiments at 16.0 and 32.0 kPa by Aulia et al in 2023[23], and vapor-liquid equilibrium measurement of limonene + β-citronellol and citronellal + β-citronellol binary systems in kaffir lime essential oil at vacuum pressures by Devianda and Kuswandi in 2023[24]. To ensure the reliability of the apparatus for the VLE (Vapor-Liquid Equilibrium) experiment, a vapor pressure test was conducted using pure ethanol.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Isobaric Vapor-Liquid Equilibrium of Methyl Salicylate + Ethyl Salicylate and Methyl Salicylate + α-Pinene Binary Systems at 20.0 and 50.0 kPa

Made Deago Nugra Visesa,

Luthfi Trianjani,

Wiguno

et al. 2024

E3S Web Conf.

Self Cite

View full text Add to dashboard Cite

Gandapura oil, also called wintergreen oil in international trade, is evaluated based on the purity of its methyl salicylate content. Gandapura oil has several impurities including mainly ethyl salicylate and α-pinene, which can lower its quality and price. Indonesian local farmer’s gandapura oil has a low methyl salicylate content of only 82.23%, and appears in a dark red colour instead of clear. The low grade product may have been caused by thermal degradation of compounds within gandapura oil by constant heating during atmospheric distillation at temperature above its thermal threshold. The determination of their vapor-liquid equilibrium data can provide basic data for the separation and purification of methyl salicylate towards its two main impurities in gandapura oil. The vacuum pressure condition was selected to lower the distillation temperature, aiming to reduce the chance of thermal decomposition. The vapor-liquid equilibrium under isobaric conditions in the binary systems of methyl salicylate + ethyl salicylate and methyl salicylate + α-Pinene at 20.0 and 50.0 kPa were measured experimentally using modified Glass Othmer-Still. Gas Chromatography (GC) was utilized to analyze the composition of both the liquid and vapor phases in the samples. The thermodynamic consistency of experimental data was confirmed through the L-W Wisniak method. The experimental results were successfully correlated with Wilson, NRTL, and UNIQUAC models. The average absolute deviations of temperature (AAD T) and vapor phase composition (AAD y) between experimental data and models are less than 0.8058 and 0.0196, respectively for all systems. In terms of quality, all samples collected post-experiment maintained a clear color, suggesting that vacuum pressure distillation effectively prevents the thermal decomposition of compounds in gandapura oil.

show abstract

Section: Reliability Test Of the Apparatusmentioning

confidence: 99%

mentioning

confidence: 99%