A Feasibility Study on Producing Derived Fuel from Waste PET Bottle Label and Biomass

• Main Authors: HSU-FAN, 徐凡
• Other Authors: TAI,HUA-SHAN
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/npf2s9

碩士 === 國立高雄科技大學 === 環境與安全衛生工程系 === 107 === 　　Waste bottle label is a kind of waste generated from the process of recycling and treating waste bottles. Since the composition of the waste label is complicated and is difficult to distinguish as well as separate, most recycle dealers aren't willing to recycle these waste labels. As a result, the current processing method for the waste labels is incineration, which is less than ideal. Consequently, we could reduce its impact to environment by taking advantage of its high-calorific-value characteristic. Palimara Alstonia (Alstonia scholaris) is a common tree species in Taiwan, which also produces a large amount of yard waste. If we could use waste bottle label and yard waste to produce residue derived fuels, the life cycle of these waste would be extended, and so did its added value. Therefore, this study is aimed to take waste bottle label and Palimara Alstonia as raw materials; samples were collected and analyzed with experimental parameters designed in advance. The feasibility of producing residue derived fuels was evaluated by conducting experiments including pyrolysis, RDF-5 extrusion test, and pyrolysis kinetic models. The parameters of pyrolysis and RDF-5 extrusion expriments were determined based on the results of basic property analysis. Furthermore, the feasibility of producing derived fuels was investigated by analyzing the products produced under various conditions. The results revealed that, both waste bottle label and Palimara Alstonia samples contained high combustible components and possess high calorific value. In addition, the results of pyrolysis kinetic analysis indicated that the activation energy required for the pyrolysis process decreased with the amount of Palimara Alstonia added. The pyrolysis experiment performed with a terminal temperature at 500 ℃, and heating rates of 5, 10, and 15 ℃/min revealing that both energy yield and solid product yield dramatically increased when Palimara Alstonia was added to waste bottle labels, and the characteristics of the produced char was similar to those of coal and anthracite. The extrusion experiment performed with a pressure of 150 Kg/cm2, and a temperature at 120~200 ℃ showing that the mix ratio of 75% to 25% (as waste bottle label to Palimara Alstonia) produced the sample with highest energy yield (112.1%). To sum up, it's feasible to produce derived fuels from waste bottle label and Palimara Alstonia, such derived fuels with optimal energy yield and unit volume calorific value could be produced under the application of extrusion technology.