高壓下茴香醚與二級醇之PVT性質研究

A Study on PVT Properties of Anisole and sec-Alcohols at Elevated Pressures

蔡宗翰(Tsung-Han Tsai)

指導教授 ： 張基昇

國立臺北科技大學/工程學院/化學工程研究所/碩士(2008年)

摘要

本研究使用高壓密度儀量取高壓下茴香醚與2-丙醇、2-丁醇、2-戊醇、2-己醇和2-庚醇所組成之五組雙成分混合物的PVT數據，溫度介於323.15 K~373.15 K，壓力高至35 MPa；並探討組成、溫度與壓力對於這些混合物系統之密度與過剩體積的影響。
每一組成、恆溫下整個壓力範圍內的密度數據則可用Tait模式準確關聯。
由實驗所得之密度數據，用於計算求取過剩體積；茴香醚+2-丁醇過剩體積為負值，而茴香醚+2-丙醇、茴香醚+2-戊醇、茴香醚+2-己醇和茴香醚+2-庚醇系統，其過剩體積皆為正值。這些混合物之過剩體積與組成之關係均可Redlich-Kister模式表示。
實驗所得雙成份PVT數據分別利用Soave-Redlich-Kwong、Peng-Robinson與Patel-Teja三種立方型狀態方程式作關聯計算，分別求取各系統之雙成分交互作用參數，結果顯示PT狀態方程式有最佳的計算效果。

關鍵字

密度 ； 高壓 ； P-V-T性質 ； 二級醇 ； 茴香醚 ； PR方程式 ； PT方程式 ； SRK方程式

並列摘要

In this study, PVT data have been measured for five binary systems mixtures
composed of anisole, 2-propanol, 2-butanol, 2-pentanol, 2-hexanol, and 2-heptanol
with a high-pressure densimeter in a temperature range of 323.15 K to 373.15 K and at pressures up tp 35 MPa. The influence of densities and excess volumes with
composition, temperature, and pressure were investigated.
The Tait model can correlate accurately the experimental density data over the
entire pressure range at fixed composition and temperture. The experimental density
data were used to calculate the excess volumes.The excess volumes are positive for
Anisole + 2- Propanol ,Anisole + 2- Pentanol ,Anisole + 2- Hexanol and Anisole + 2-
Heptanol mixtures,and negative for Anisole + 2- Butanol mixture , and The variation of excess volumes with composition can be represented by the Redlich-Kister model.
The SRK,PR and PT cubic equation of state were also employed to correlate the
PVT data, and the binary interaction parameters were determined by fitting the
binary PVT data to equations of state.The PT equation of state is overall the best.

並列關鍵字

Density ； High Pressures ； P-V-T properties ； sec-Alcohols ； Anisole ； PR EOS ； PT EOS ； SRK EOS

參考文獻

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