造粒方法對金屬有機骨架顆粒物性與水氣吸附特性影響探討

A Study: The Impact of Shaping on the MOF Granules Physical Properties and Water Vapor Adsorption Behavior

10.29911/JEHVACE_NEW.202207_1(1).0006

謝宗霖(Tsung-Lin Hsieh)；周揚震(Yiang-Chen Chou)；彭彥翔(Yen-Hsiang Peng)；黃德一(De-Yi Huang)；陳鈞振(Jiun-Jen Chen)；康育豪(Yu-Hao Kang)

金屬有機骨架 ； 造粒 ； 水氣吸附 ； 除濕乾燥 ； Metal Organic Framework ； shaping ； water adsorption ； dehumidification

冷凍空調&能源科技

134期（2022 / 07 / 10）

54 - 59

繁體中文

本研究以滾動造粒、混合－離心圓球造粒、擠出－離心圓球造粒三種造粒方法，對金屬有機骨架（Metal-Organic Frameworks，MOF）進行造粒成形，探討造粒程序對顆粒物理性質及水氣吸附特性之影響。測試結果顯示：造粒過程設備所施加之機械力與剪切力會影響顆粒機械強度，並影響吸附時之質傳阻力。當剪切力越高時，顆粒強度越強，質傳阻力亦隨之提升。三種造粒技術對於顆粒強度表現順序為：Al-PY-F_M（混合－離心圓球造粒）＞ Al-PY-F_E（擠出－離心圓球造粒）＞ Al-PY-F_P（滾動造粒）。造粒程序對顆粒堆積密度表現的影響，無顯著差異，均介於346～377 kg/m^3之間。各造粒程序所製備MOF顆粒之初始吸附速率介於0.14～0.185 g_H_2O/min．g_MOF間，飽和吸附容量較商用吸附劑高出30～45%。本研究之結果可作為開發商業化造粒技術之參考依據。

This study investigated the impacts of shaping techniques, pan granulation, high shear granulation, and extrusion-spheronization, on the physical properties, mechanical strength and packing density, and water vapor adsorption behavior of the MOF granules. The test results indicated that the higher mechanical forces applied during the granulation processes produced the MOF granules with higher density and mechanical strength, resulting in lower water vapor adsorption rate due to an increase in the mass transfer resistance. The sequence of MOF granules strength was Al-PY-F_M (High shear granulation) ＞ Al-PY-F_E (Extrusion-spheronization)＞ Al-PY-F_P (Pan granulation). Approximate packing density, 346~377 kg/m^3, was observed for MOF granules made by different shaping techniques. The water vapor adsorption rate of all MOF granules was in the range of 0.14 and 0.18 g_H_2O/min．g_MOF. MOF granules showed an excellent performance on the water capacity, 30~45% higher than commercial products. This study is able to accelerate the commercial progress of MOF shaping techniques.

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