隨著經濟的發展和人口快速成長，能源的需求日益增加，但傳統化石燃料會造成環境汙染，且在未來的幾年，將會日益減少。因而有再生能源的出現，像風能、太陽能、水力能、生質能，但一般的再生能源會受到地理環境或氣候的限制。生質能不受環境、氣候限制且具有方便運輸、儲存和低汙染的優點。是一個極具潛力的替代能源。本次研究建置流體化床系統，以生產生質油為主要目標，流體化床系統主要包含了進料器、流體化床反應爐、旋風集塵器及冷凝系統。藉由改變系統的反應溫度、進氣的流量及進料率，找到最大的生質油產量。本系統流體化床反應爐設計為直徑為80mm，高度為820mm。最小流化速度為0.1公尺/秒，實驗操作範圍為1.16至1.66倍的最小流化速度，所使用的生質料為稻殼，溫度控制在350℃到550℃間，進料率控制為每次21.33克到34.23克。實驗結果顯示，在溫度400-450℃，流量為每分鐘45公升，進料率控制為每次27.33克時，會有最大的生質油產率，為49.8%的產量
。經由稻殼產出的生質油外觀為棕褐色，經由GC-MS的分析，成份包含了十九烷、十八烷、正十六烷酸和十八烷酸、…此外還發現稻殼產出的生質油具有低熱值和高含氧量、高硫量之特性。其中產物氣體經由GC-TCD分析，主要有二氧化碳、甲烷、氫氣及氮氣。

In this study, both system development and experimental investigation were conducted for fluidized bed fast pyrolysis. The design of a fluidized bed pyrolysis system, including a fluidized bed reactor, a feeder, a cyclone and a condenser, was carried out in order to improve the system performance and efficiency. Rice husk was chosen as the feedstock based on its availability in Taiwan. The product distributions from fluidized bed pyrolysis were studied with varying temperature, carrier gas flow rate and biomass feeding. The results showed that the optimal experimental conditions for obtaining the maximum bio-oil yield were at the temperature between 400 ℃ and 450 ℃ , the flow rate of 45 L /min and biomass feeding of 21.3 g per inject time. The analysis of GC-MS indicated that the major components of bio-oil contain n-hexadecanoic acid, octadecaoic acid, 9-octadecenoic acid and decanoic acid. The element and property analysis of bio-oil demonstrated that the bio-oil has high oxygen content and low heating value. The analysis of GC-TCD showed that the major components of non-condensable gas are CO2, H2, CH4 and N2.

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