工業技術研究院

技術簡介

金屬有機骨架(Metal Organic Frameworks，MOF)材料製成之新型乾燥粒，可取代現有工業用壓縮空氣吸附式乾燥機中的傳統乾燥粒。本技術包含MOF乾燥粒選用、吸附劑配置方式，以及導入乾燥機後之操作模式。目的在有效地利用MOF之優異特性(例如：高水氣吸附量或是可低溫脫附再生)，改善現有乾燥機的能耗或用電效率。

Abstract

A novel desiccant composed of metal organic frameworks (MOF) granules has the potential to to replace traditional desiccant widely used in industrial compressed air adsorption dryers. This technique includes selecting the appropriate type and combination of MOFs, determining the optimal quantity, and fine-tuning the dryer’s operating parameters after integrating the MOF desiccant. The purpose of this technique is to improve the dryer’s energy efficiency by leveraging the MOF’s superior properties, such as high moisture uptake and low regeneration temperature.

技術規格

1. 壓縮空氣之吸附乾燥能力測試平台：可以2-3 L量之乾燥粒，試驗指定之吸附及再生條件下的乾燥能力(最低露點溫度)、破出時間、破出時的吸附劑吸水量、再生能耗及用電效率。 (1) 吸附之壓縮空氣可測進氣規格：6 kg/cm2G、0-100 NLPM、-15℃至室溫之露點溫度。 (2) 再生之熱風規格：0-100 NLPM、最高~210℃。 (3) 以此小型系統可評估不同MOF乾燥粒種類、MOF與傳統乾燥粒配比之表現，並依此界定最佳配置模式、操作參數及用電效率。 2. MOF吸附式壓縮空氣乾燥式設備：目前MOF乾燥粒已導入實際案場，取代乾燥機原本採用的傳統氧化鋁乾燥粒。可處理的壓縮空氣規格及效能如下： (1) 壓縮空氣進氣規格： 6-30 CMM(或更高)、6～8 kg/cm2G、20℃以上、相對濕度~100 ％RH。 (2) 出風露點：＜-50℃(最低可至-70℃) (3) 實測乾燥機能效和傳統比可提升10-20％。

Technical Specification

1. Small-scale testing platform: Using 2-3 L of desiccant granules, we can evaluate their performance in compressed air drying under selected adsorption and regeneration conditions. The performance is assessed based on key metrics, including the dew point (DP) temperature of dried air, breakthrough time, moisture removal capacity, energy consumption and the efficiency of desiccant regeneration process. (1) Conditions of inlet compressed air: 6 kg/cm2G, 0-100 NLPM, inlet DP ranging from -15℃ to room temperature. (2) Conditions of hot air used in regeneration: 0-100 NLPM, maximum inlet temperature up to ~210℃. (3) We can evaluate different types of MOF and their combinations with traditional desiccants. The results will provide insights into the optimal desiccant selection, operational parameters and overall energy efficiency. 2. Several companies have integrated MOFs into their compressed air dryers system, replacing traditional alumina desiccants. The inlet condition of the compressed air and the DP at the dryer’s outlet are as following. (1) Inlet: 6-30 NCMM or higher, 6-8 kg/cm2G, 20℃ or above, relative humidity near saturation. (2) Outlet: DP ＜-50℃ (in some cases ＜-70℃). (3) Measurement of the dryers’ processed air and electricity consumption indicated a 10-20％ improvement in energy efficiency.

技術特色

本技術建置壓縮空氣之吸附乾燥能力測試平台。可以少量物料在不同種乾燥粒、不同乾燥顆粒配比、不同進氣條件、不同再生條件下，驗證吸乾機處理壓縮空氣的出氣品質(最低露點、破出時間)以及能耗效率等性能指標。亦可依照符合使用者需求的出氣品質下，釐清能效最佳的乾燥粒組合。 本技術為國內首例將MOF乾燥粒應用於壓縮空氣吸附乾燥機之節能技術。實際導入現場乾燥機後，也會針對機體設定參數做滾動修正，使其運轉時能充分再生乾燥粒，充分發揮MOF材料之優異特性，協助工業界的壓縮空氣系統節能減排。

應用範圍

傳統工業及電子業、光電或半導體業廠房之壓縮空氣系統

接受技術者具備基礎建議（設備）

本技術應用於壓縮空氣供應系統及乾燥設備，可包含設備使用者、製造商或經銷商

接受技術者具備基礎建議（專業）

壓縮空氣吸附乾燥設備之操作專業及維修保養專業 (包含乾燥粒更換、操作參數設定及偵錯，以及設備用電效率辨識)

聯絡資訊