EPA-97-H101-02-121

097

7,900 千元

2008/12/31

2009/12/31

孫世勤

廢管處

許明華

中興工程顧問股份有限公司

廢棄物管理

垃圾焚化爐；生質煤炭；共燃；共燃；機械熱處理；焙燒；氣化；稻草

Refuse incinerator；bio-coal；co-combustion；mechanical heat treatment；torrefaction；gasification；rice straw

許明華

02-27698388#

mwshui@epa.gov.tw

本計畫主要目的為評估垃圾焚化廠轉型生質能源中心之可行性，辦理生質能源中心先期規劃，並研擬具體計畫以提供環保署陳報行政院核定後據以推動。藉由建構生質廢棄物再生能源中心結合「先進垃圾處理」與「生質能源有效利用」，提高資源回收成效、改善環境品質，朝向「垃圾零廢棄」目標邁進，並提昇再生能源利用率及帶領生質能源利用發展，促進我國CO2減量政策之推動。垃圾焚化廠轉型生質能源中心仍需以一般廢棄物為主要處理對象。在納入農林剩餘資材方面，按本計畫以97年數據為基準估算得知，稻草生質能源潛勢已佔農林剩餘資材之60%，顯示本計畫生質廢棄物再生能源中心規劃處理農林剩餘資材時，應優先以稻草為對象；在「植栽能源植物」作為「補充料源」方面，因受限於休廢耕農地復耕增產糧食政策，故僅能利用不會與糧食爭地之少量土地種植，推估其能源潛勢佔比不高，僅具示範意義。在轉化利用技術方面，按本計畫研究結果，建議垃圾焚化廠轉型為結合「機械熱處理」(Mechanical Heat Treatment)與「焙燒」(Torrefaction)技術產製「生質煤炭」之生質廢棄物再生能源中心，「生質煤炭」直接供應國內燃煤電廠或汽電共生廠替代天然煤炭使用，可兼具經濟、效率與未來發展之優點。在實際推動方面，則考慮我國垃圾焚化廠尚無急迫轉型之需求及具有超過百萬公噸/年餘裕處理容量之事實，加上「機械熱處理」結合「焙燒」技術應用於垃圾處理產製生質煤炭亦屬創新構想，有待進一步試作驗證，建議循驗證、示範、推廣順序，先行推動稻草焚化處理，同時進行「機械熱處理」與「焙燒」技術之試作驗證，再進一步籌設示範應用廠，配合垃圾焚化廠屆齡時程逐步轉型「生質廢棄物再生能源中心」。

垃圾焚化爐；生質煤炭；共燃；共燃；機械熱處理；焙燒；氣化；稻草

摘要詳細版.pdf

3MB

2010/3/1 上午 12:00:00

The objectives of this project were to evaluate the feasibilities of the transformations from refuse incinerators to bio-energy centers, to draw up preliminary proposals for bio-energy centers, and to draft a promotion plan that is expected to be submitted by the Environmental Protection Administration to the Executive Yuan for approval. By the development of bio-waste renewable energy centers and the introduction of advanced technologies on waste treatment together with effective utilizations of bio-energy from agricultural residues, the aim of improving the recycling rate and the environmental quality would be achieved and our country would move towards the goal of “zero waste”. The bio-waste renewable energy centers would also be helpful for the utilization of renewable energy, the development of biomass energy and the promotion of CO2 reduction policy. The refuse would still be the main feedstock of bio-waste renewable energy centers. As for the agricultural and forest residues, in accordance with the survey based on data of 2008, this project suggested to take rice straw as top priority since the estimated bio-energy potential of the rice straw was accounted for 60% of the total agricultural and forest residues. Due to the policy of increasing grain production, there would be very limited cultivated lands available for the growing of energy plants. Since the estimated energy value of biomass yield was so slight, the growing of energy plants as supplementary materials for the bio-waste renewable energy centers was not practical except for demonstration purpose. According to the outcomes of this project, the recommended conversion technologies for the bio-waste renewable energy centers were the mechanical heat treatment (MHT) process combined with torrefaction facility, which would convert refuse or biomass into a fuel product called “bio-coal”. The bio-coal could substitute the fossil coal in power plants or cogenerations with the advantages of economics, efficiency and future development. It was found that there was no urgent demand of transforming the existing refuse incinerators and the incinerators still had more than one million tons of surplus capacity per year. While taking into consideration of the utilization of surplus capacity and the fact that MHT combined with torrefaction for bio-coal production from bio-waste was still an innovative technology to be validated, this project suggested first promoting the incineration of rice straw and carrying out pilot programs for validations on MHT and torrefaction technology. Second, constructing a demonstration facility, and finally promoting transformation of refuse incinerators to bio-waste renewable energy centers based on the actual conditions of each incinerators.

Refuse incinerator；bio-coal；co-combustion；mechanical heat treatment；torrefaction；gasification；rice straw