本研究主要為應用熱裂解技術(Pyrolysis)設計丁酮(甲乙酮)廢溶劑廠內處理程序與裝置，最終建置15噸/月級連續式廢溶劑處理工廠，丁酮溶劑經循環清洗數次含有1~3%之塗工膠，而不易使用蒸餾回收，而焚化方式存在塗工膠其高燃燒溫度點不利於穩定燃燒外，也容易產生阻塞霧化噴嘴等物理現象導致委外清運處理費逐年上升，為提升溶劑處理流程之經濟效益將應用熱裂解方式處理。熱裂解產生出之氣體含甲烷、一氧化碳、乙炔、乙烯等高熱值氣體，其熱值相當於七成市售天然氣可作為鍋爐、燃燒機或蓄熱式焚化爐進行回用。以先期建立之熱解研究機操作成果作為基礎，搭配動力學及熱力學等參數結合Aspen Plus及CFD軟體模擬結果進行系統放大化設計，最終由SolidWorks進行系統建置圖面輸出，完成防爆機房之工程建置規劃。於工程設計面考量，操作溫度於900℃之不鏽鋼材耐熱受度有限，機械設計參考商用軟件Auto-Pipe Vessel進行壓力容器級之厚度設計及考量，於流體輸送部分使用Flow-Expert軟件進行壓降計算、泵浦選型及流孔板壓力等設計依據。試驗場最終成功點燃鍋爐以及導入RTO連續運轉，產生之燃氣比例與前人研究相符，惟氣體過濾系統因產生部分焦油及碳渣混合物仍需要設置另一個單元處理，方能真正達到設備操作便利及經濟效益。

This study primarily revolves around the application of Pyrolysis technology to devise processing procedures and apparatus for the treatment of waste butanone (methyl ethyl ketone) solvents within a continuous waste solvent treatment plant, ultimately configured to handle a monthly throughput of 15 tons. The butanone solvent, after undergoing multiple cycles of cleaning, exhibits a PMMA-glue content ranging from 1% to 3%. The presence of these PMMA-glue poses hindrances to subsequent chemical and physical processes, such as distillation and incineration, leading to an incremental escalation in outsourced disposal costs over time. To augment the economic efficiency of the solvent treatment process, Pyrolysis is employed as a means to eliminate these impediments. Pyrolysis generates gases of high calorific value, including methane, carbon monoxide, acetylene, and ethylene. The calorific value of these gases approximates 70% of commercially available natural gas, rendering them suitable for reuse in boilers, combustion systems (TO), or regenerative thermal oxidizers (RTO). Leveraging preliminary results obtained from the Pyrolysis pilot plant, in conjunction with parameters encompassing kinetics and thermodynamics, Aspen Plus and Computational Fluid Dynamics (CFD) are employed for the scale-up design of the system. The ultimate engineering layouts are generated using SolidWorks, encompassing the planning of explosion-resistant facilities. In terms of engineering design considerations, the operating temperature of 900°C imposes limitations on the heat resistance of stainless steel materials. Mechanical design aspects reference the Auto-Pipe Vessel commercial software for the thickness design of pressure vessels, incorporating relevant considerations. Flow-Expert software is employed for pressure drop calculations, pump selection, and orifice plate pressure calculations within the fluid transport section. In the test facility, successful ignition of the boiler and the seamless integration of continuous RTO operations were achieved. Moreover, an additional unit for the gas filtration system should be set up to handle the mixture of partially generated tar and carbon residue, in order to truly achieve convenient equipment operation and economic benefits.

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