乙醇正丙醇精餾實(shí)驗(yàn)

《乙醇正丙醇精餾實(shí)驗(yàn)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。

1、精餾實(shí)驗(yàn)一、原始數(shù)據(jù)：液相組成x氣相組成y沸點(diǎn)℃1/x1/y0097.160.1260.2493.857.93654.16670.1880.31892.665.31913.14470.210.33991.64.76192.94990.3580.5588.322.79331.81820.4610.6586.252.16921.53850.5460.71184.981.83151.40650.60.7684.131.66671.31580.6630.79983.061.50831.25160.8440.91480.591.18481.09411178.381.00001.0000乙醇rK

2、J/KmolCpKJ/Kmol/K822.20642.9050正丙醇rKJ/KmolCpKJ/Kmol/K713.29202.7165混合液rmKJ/KmolCpmKJ/Kmol/K735.07492.7542料液摩爾分?jǐn)?shù)與折光率關(guān)系料液摩爾分?jǐn)?shù)摩爾分?jǐn)?shù)乙醇0%100%折光率1.38051.359二、數(shù)據(jù)處理全回流塔頂折光率質(zhì)量濃度摩爾分?jǐn)?shù)溫度℃1.362581.31.3625平均1.36250.83640.8696塔底折光率1.37581.3740平均1.37490.25970.31397板折光率1.37251.3725平均數(shù)1.37250.37130.43518板折光率1.374

3、11.3752平均數(shù)1.37470.27130.3269計(jì)算示例：（1）折光率（2）質(zhì)量分?jǐn)?shù)（3）摩爾分?jǐn)?shù)=三、繪圖與分析：由圖知，有3.2塊理論板理論板數(shù)3.2全塔效率0.22x70.4351x8*0.1973x80.3269單板效率0.4552計(jì)算示例：全塔效率單板效率部分回流部分回流回流比3溫度℃塔頂折光率質(zhì)量濃度摩爾濃度1.36331.36579.61.36581.3654平均數(shù)1.36461.36520.7260.7761.3649塔底折光率質(zhì)量濃度摩爾濃度溫度℃1.37621.3762100.61.37621.3767平均數(shù)1.37630.1930.2388板折光率質(zhì)量濃

4、度摩爾濃度溫度℃1.375327.71.3715平均數(shù)1.37340.3290.391折光率質(zhì)量濃度摩爾濃度溫度℃7板進(jìn)料板1.372593.91.3722平均數(shù)1.37240.3780.442q的計(jì)算方法：精餾段操作線斜率0.75截距0.194x10.3y10.419y=0.75x+0.194x20.9y20.869q線方程q1.1966斜率6.086截距-2.250x10.5y10.8y=6.10x-2.255x20.4y20.19精餾段操作線和q線的交點(diǎn)坐標(biāo)xy0.45780.53758提餾段操作線x10.238y10.238xw0.4578yw0.53758繪圖與分析:由圖知

5、有4.2塊理論板理論板數(shù)4.2x80.391全塔效率0.52x8*0.283單板效率0.320x70.442討論：1.塔底產(chǎn)品和塔頂產(chǎn)品不宜放在同一灌中2.裝置操作彈性小，易液泛3.缺少降液管4.計(jì)算x*的方法不唯一，選用的方法不一樣，最后得出的結(jié)論也不一樣5.塔的效率比較低，原因可能是塔板結(jié)構(gòu)、氣液接觸狀況、過(guò)量液膜夾帶造成的