頁籤選單縮合
題名 | Analysis of an Evaporative Freezing Process for the Brine Concentration by the Cold Energy of LNG=LNG冷能蒸發冷凍以濃縮鹽水之程序分析 |
---|---|
作者 | 施顏祥; 楊志德; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 17:3 1986.05[民75.05] |
頁次 | 頁157-165 |
分類號 | 460.026 |
關鍵詞 | 冷凍; 冷能; 蒸發; 濃縮; 鹽水; |
語文 | 英文(English) |
中文摘要 | 本文研究以二次冷媒直接蒸發方式濃縮塩水之程序。所用之冷媒為丁烷,而以LNG之冷能為程序設計目標,以充分利用LNG氣化之潛熱。文中詳細說明程序設計條件,以及所分析之操作條件,以為工業設計之參考。分析結論指出,若以3.5%塩水濃縮至16.1%為例,則所需間接使用之LNG量為2.69公斤每1公斤塩水,且設計與操作條件均與塩水濃度、塩水溫度、冷媒流量及冷媒溫度等有密切關係,而最佳設計則需考慮結晶槽之滯留時間。本研究論文詳細說明流程設計依據,以及分析模擬方法,最後以可能之實用範例為結束。 |
英文摘要 | A secondary refrigerant evaporative freezing process was proposed to utilize the cold energy of LNG (liquefied natural gas) for concentrating sea water (brine). A preliminary design and operation analysis of the process was carried out by using n-butane as the refrigerant. Since the brine temperature is seasonal, the effect of feed water temperature on the performance of this process was investigated. Through this study, it is concluded that for a modified process to concentrate the brine from 3.5 to 16.1%, the weight ratio of the needed LNG to the concentrated brine solution was calculated to be 2.69. This ratio recommends a combined LNG regasification unit with a brine concentrating unit to fully utilize the cold energy of LNG and also to save the evaporation time of the saltmaking process. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。