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Title: | 藉由海水洗滌去除海上機具廢氣之模擬 Modeling of Seawater Scrubbing for Exhaust Gas Cleaning in Marine Applications |
Authors: | Ting Chang 張庭 |
Advisor: | 吳哲夫(Jeffrey D. Ward) |
Keyword: | 洗滌塔,噴霧脫硫塔,開環系統,閉環系統,海上廢氣除硫系統, scrubber,spray column,open loop,closed loop,exhaust gas cleaning system, |
Publication Year : | 2020 |
Degree: | 碩士 |
Abstract: | 由於國際海事組織的法規越來越嚴格,脫硫技術顯得日漸重要,其中常見的濕式噴霧塔脫硫技術可分為開環系統以及閉環系統,為了瞭解系統運作機制而使用Aspen Plus模擬此兩種系統,其中天星管理顧問股份有限公司提供海上試驗的洗滌塔測試結果,此結果有助於校正洗滌塔內的質傳速率,在開環系統中海水鹼度(alkalinity)及海水溫度對於系統有較大的影響,若應用在較高含硫量的燃油之廢氣則會需要更多的海水洗滌氣體中的二氧化硫,而閉環系統是由開環系統的結果所延伸出來的,閉環系統中所使用的海水流量比開環系統少,其中值得注意的是,在不同的操作條件下Na+/SO2的摩爾比都維持在18,雖然閉環系統未有實際的海上測試結果,不過其模擬數值可作為未來設計閉環系統的參考值。 The spray column is a widely used technology for desulphurization process in the marine industrial. Two types of desulphurization process, open loop and closed loop, simulate in the Aspen Plus. There is an open loop sea trial data provided by the Genius Star Management Consulting Co., Ltd. With this sea trial data the mass transfer rate is corrected in Aspen Plus. The seawater alkalinity and temperature influence the open loop system. The more seawater is required when the higher sulphur content fuel is applied on the ship engine. The closed loop process is the extension work from the open loop process. The required amount of seawater is much less than the open loop process. The Na+/SO2 mole ratio almost keep the same value 18 and the other results could be the reference for the company to design the closed loop system in the future. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/60383 |
DOI: | 10.6342/NTU202001351 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 化學工程學系 |
Files in This Item:
File | Size | Format | |
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U0001-0707202009575200.pdf Restricted Access | 2.58 MB | Adobe PDF |
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