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paul9979金蟲 (小有名氣)
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[求助]
求助翻譯一段英文，請高手幫忙。
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| Both the geopolymer circular plate membrane and the self-supporting NaA zeolite membrane were tested for pervaporation (PV) during the dehydration of alcohol and desalination of seawater. The preliminary measurements of the pervaporation during the dehydration of alcohol were reported in our previous work [16]. This study primarily investigated the pervaporation during the desalination of NaCl solutions (all feed with NaCl concentration of 3.5 wt%). In particular, the pervaporation characteristics with different PV temperatures and membrane thicknesses were evaluated using pervaporative NaCl solutions and pure water with a lab-designed and lab-assembled pervaporation test apparatus [1, 15]. The self-supporting NaA zeolite membranes (thickness = 9.4 mm) were tested for PV at 25, 40, 70, and 90ºC using pure water and NaCl solutions. One batch of pure water or NaCl solutions was applied to the PV tests. The flux of the NaCl solutions (0.42 kg m-2 h-1 at 25ºC) gradually increased to 3.86 kg m-2 h-1 as the PV temperature increased to 90ºC. The data shown in Fig. 5 clearly indicate that the flux of the NaCl solutions was larger than that of pure water at PV temperatures lower than 90ºC. The theory is based on the fact that the apparent activation energy of the water permeation in the NaCl solutions decreased with increasing PV temperature and was always less than that of the pure water [1]. |
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baoshanqiu
至尊木蟲 (著名寫手)
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【答案】應(yīng)助回帖
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愛與雨下: 金幣+1 2015-06-17 07:23:53
paul9979: 金幣+28, 翻譯EPI+1, ★★★★★最佳答案 2015-06-17 22:01:23
愛與雨下: 金幣+1 2015-06-17 07:23:53
paul9979: 金幣+28, 翻譯EPI+1, ★★★★★最佳答案 2015-06-17 22:01:23
| 地質(zhì)聚合物圓盤膜和自身支持的NaA沸石膜均被試用于酒精脫水和海水脫鹽的全蒸發(fā)（PV)過程。我們前面的工作[16]報告了測量酒精脫水的全蒸發(fā)的初步結(jié)果。這里主要研究NaCl溶液（所有都加NaCl濃度為3.5 wt%)脫鹽的全蒸發(fā)。具體說，是用實驗室設(shè)計、安裝的全蒸發(fā)測試裝置[1,15]評價不同PV溫度和膜厚度下全蒸性的NaCl溶液和純水的全蒸發(fā)特性。采用NaCl溶液和純水測試了25、40、70和90攝氏度下用自身支持NaA沸石膜（厚度=9.4mm)作PV。用同一批純水或NaCl溶液作PV測試。當(dāng)PV溫度由25攝氏度增加到90攝氏度時，NaCl溶液的流量由0.42kg/平方米/小時逐漸增加到3.86kg/平方米/小時.圖5的數(shù)據(jù)清楚地表明在PV溫度低于90攝氏度時NaCl溶液的流量大于純水的流量。其理論基礎(chǔ)是隨PV溫度增加NaCl溶液中水透過的表觀活化能降低且總低于純水的表觀活化能。 |
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