應用改質催化劑於非回收類塑膠廢棄物快速熱裂解之技術評估研究;Assessment on Modified Catalyst for Catalytic Fast Pyrolysis of Non-Recycled Plastic Wastes

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題名:	應用改質催化劑於非回收類塑膠廢棄物快速熱裂解之技術評估研究;Assessment on Modified Catalyst for Catalytic Fast Pyrolysis of Non-Recycled Plastic Wastes
作者:	江康鈺
貢獻者:	國立中央大學環境工程研究所
關鍵詞:	生質燃料;催化快速熱裂解;非回收塑膠廢棄物;生質塑膠(聚乳酸;PLA);biofuel;catalytic fast pyrolysis;non-recycled plastic waste;polylactic acid (PLA) plastics
日期:	2018-12-19
上傳時間:	2018-12-20 14:21:49 (UTC+8)
出版者:	科技部
摘要:	化石燃料燃燒產生CO2 排放及其衍生之全球溫暖化問題已日益受到關注，近年來，世界各國對於 CO2 減量技術及控制策略亦積極研擬發展中。生質能為再生能源，就生物生長及其應用過程，其CO2 淨排放量幾近於零；相較於其他再生能源而言，生質能數量較大，且隨地理分佈可每年生長；而且，就現有技術及經濟性而言，生質能亦為一種容易使用之能源。因此，生質能已被多數國家認為是一種永續能源，同時可減少溫室氣體之排放。快速熱裂解技術是應用熱化學之反應程序，基於以下之優點，目前經常應用於生質能源：(1)較高之加熱及熱傳速率：為維持較高之反應速率，反應前生質物須作適當之前處理，以便維持較小粒徑之生質物；(2)控制適當之熱裂解反應溫度：熱解反應溫度一般控制在 420℃~550℃；(3)控制較短之氣體停留時間：一般而言，停留時間之典型數值須小於2 秒；(4)快速之氣體冷凝速率：熱裂解產生之氣體產物(包括蒸氣與部分氣膠)，須迅速冷凝並產生高品質之生質油。為進一步考量能源轉化技術廣泛使用性、未來發展之可能性、能源應用之效益、以及適用之地域性等因素，就地狹人稠與廢棄物產生量較大之台灣而言，發展利用廢棄物轉換為生質燃料(Waste to Biofuel, WtB)之新能源利用技術，將是一項重要且具發展潛力之可行利用技術之一。綜觀國內相關再生能源利用技術發展起步較晚，加上廢棄物及生質物種類繁多且性質迥異，本研究擬進一步探討有關非回收塑膠及生質塑膠廢棄物轉換為生質燃料(Waste to Biofuel, WtB)之新能源利用技術之可行性，規劃之三年度研究主題分別如下：(1)第一年度：自製改質催化劑與催化快速熱裂解之反應動力特性評估；(2)第二年度：提昇生質燃料品質與高值化之技術評估；(3)第三年度：建立高溫廢氣污染物淨化程序之應用評估。 ;Concern has grown over the release of carbon dioxide from the combustion of fossil fuels and its link with global warming. In recent years, the technologies and strategies of CO2 reduction were developed actively by many countries. Biomass is a renewable resource with almost zero net CO2 emission since carbon and energy are fixed during the biomass growth. Compared with other renewable energy resources, biomass is huge in annual production with a geographically widespread distribution in the world. Furthermore, biomass is an easy-to-use energy sources, based on present technical level and economics. Therefore biomass has been the focus of most of countries for sustainable energy production and also for the reduction of greenhouse gases emissions. Fast pyrolysis, a type of thermal-chemical process, has been received attention throughout the world due to the following advantages: (1) high heating and heat transfer rate: it usually requires a suitable pretreatment to provide rapidly thermal reaction; (2) controlling pyrolysis reaction temperature: it could be controlled ranged between 420℃ and 550℃; (3) short vapor residence time: typically below 2 seconds; (4) high quenching rate: pyrolysis vapors and aerosols are rapidly cooled to give high quality bio-oil. To further consider the wide application of energy conversion technology, possibility of technology development for the future, effectiveness of energy utilization and waste location, WtB (Waste to Biofuel) technology will become one of the important and potential energy conversion technologies in Taiwan. However, in Taiwan, little information has been developed about the technology of waste to biofuel by fast pyrolysis. Recognizing the necessity and the importance of the problems, the main objectives of this three-year project were to: (1) establish the characteristics of modified catalyst and kinetic of catalytic fast pyrolysis; (2) enhance the quality of biofuel and assess the characteristics of high-valued technology in catalytic fast pyrolysis; (3) assess the feasibility of hot-gas cleaning technique for flue gas produced from non-recycled plastic wastes in catalytic fast pyrolysis.
關聯:	財團法人國家實驗研究院科技政策研究與資訊中心
顯示於類別:	[環境工程研究所 ] 研究計畫

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