摘要:隨著科學技術的發展，全球人口的急劇增加，人們生活水平和消費水平的不斷增長，環境問題已經成為當今世界的主題之一，而如何有效地利用資源是環境問題的重中之重。

　　　本畢業設計的目的是針對不同種類的生物質材料，對其熱解特性進行實驗研究。在收集資料的基礎上，提出竹材、木材、桑樹枝熱解的實驗方案，并完成這些材料的熱解特性實驗研究，分析和整理熱力試驗的有關數據。

　　　根據工業分析結果的比較，竹材、桑樹枝的揮發分分別為68.88%和67.48%，固定碳分別為14.25%和18.00%，這兩項指標均高于木材，另一方面竹材和桑樹枝的水分都不高，在10%左右，熱解時從外界吸收的熱量并不多，因此將竹材用于高溫熱解，將桑樹枝用于低溫熱解是具有廣闊前景的。而根據熱值分析的結果比較，竹材和桑樹枝的熱值分別是16573.19kJ/kg和17056kJ/kg，均高于木材的熱值，超過了標準煤熱值的一半，因此將它們用于焚燒產熱也是一條理想的途經。從熱重實驗可知這兩種材料的熱解過程開始反應的溫度大約在200℃左右，相對較低，放熱過程容易發生。綜上，竹材和桑樹枝是很具有資源化利用價值的，我們應當提倡多對竹材和桑樹枝進行開發利用，將廢棄的竹材、桑樹枝收集起來用于熱解或焚燒產熱供能，以減少煤、石油等不可再生資源的消耗，降低氮氧化物、硫化物對環境的污染。

關鍵詞：竹材，木材，桑樹枝，熱解特性

Abstract:With the development of science and technology, the rapid population increase, people's living standards and rising consumption level, the environment has become one of the themes in today's world, and how effective use of resources is the most important environmental issues.

　　　The subject of this graduation project is for different types of biomass materials, the experimental study on pyrolysis characteristics. In the collection of information is presented based on bamboo, wood, mulberry branches pyrolysis experimental program and complete the pyrolysis characteristics of these materials, experimental research, analysis and collation of relevant thermal test data.

　　　According to industry analysis comparing the results, bamboo, mulberry branches were 68.88% volatile matter and 67.48%, 14.25% fixed carbon, respectively, and 18.00%, these two indicators is higher than wood, bamboo and mulberry tree the other hand, the water Not high, at around 10%, pyrolysis heat absorbed from the outside is not much, so the bamboo used for high-temperature pyrolysis, the mulberry trees for the low temperature pyrolysis is a promising. According to the results of the analysis of calorific value compared to bamboo, and the heat value of mulberry trees were 16573.19kJ/kg and 17056kJ/kg, were higher than the heat value of wood, more than half the heat value of coal equivalent, so use them for burning Is an ideal heat through. We can see from the thermogravimetric pyrolysis of these two materials the temperature reaction process began about about 200℃, the relatively low exothermic prone. In summary, bamboo and mulberry tree is a resource of value, we should promote more of bamboo and the development and utilization of mulberry trees, the abandoned bamboo, mulberry tree branches collected pyrolysis or incineration for heat energy supply to Reduce coal, oil and other non-renewable resource consumption, reduce nitrogen oxides, sulfides on the environment.

Key words: bamboo, wood, mulberry tree, pyrolysis characteristics