污泥熱解特性探討
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- 污泥熱解特性探討摘 要
隨著能源需求的持續(xù)增加，傳統(tǒng)的能源都面臨著資源枯竭的問題，且利用過程中引起的環(huán)境污染問題日益嚴(yán)重。因此，尋找合適的后備能源原料以及提高能源的利用效率顯得尤為緊迫。污泥就可以作為極為重要的后備能源之一，而且污泥的產(chǎn)量也隨著工業(yè)化的進(jìn)程而日益升高，所以探究污泥的無害化利用，既能減小污泥對(duì)環(huán)境的污染，也為世界提供了一個(gè)解決了能源問題的方法，而污泥熱處理方式又是污泥處理的重要方法之一，所以其日漸成為人們研究的重點(diǎn)。
本實(shí)驗(yàn)研究了污泥含水率、熱解終溫以及污泥與松木屑不同配比等因素對(duì)污泥熱解特性的影響；采用管式爐裝置，以“無害化、減量化、資源化”為原則，通過研究污水污泥的熱解，研究了各種條件下污泥熱解所得的主要?dú)庀喈a(chǎn)物的分布和氣體組成。
結(jié)果表明，熱解溫度對(duì)熱解產(chǎn)物的影響：提高熱解溫度不斷的增高有利于氣態(tài)產(chǎn)物生成，特別是H2和CO等小分子氣體；含水率對(duì)產(chǎn)物影響：隨著含水率的提高,氣相和液相產(chǎn)物產(chǎn)率都有相應(yīng)程度的升高，而固相產(chǎn)物產(chǎn)率則隨之降低。氣相中H2產(chǎn)量上升，CO產(chǎn)量下降；生物質(zhì)對(duì)產(chǎn)物影響：原料的揮發(fā)分含量是影響熱解產(chǎn)物分布的決定性因素，隨著生物質(zhì)（木屑）摻混比的提高，氣相和液相產(chǎn)量逐漸上升，固相產(chǎn)物的產(chǎn)量下降。
關(guān)鍵詞：污泥 熱解 氣相產(chǎn)物
ABSTRACT
With the development of economy, the process of industrialization is speeding up, people's living standard is improved, and the output of industrial sludge and sewage sludge is also increasing. Therefore, the problems brought about by the sludge are gradually highlighted. In order to reduce the pollution of sludge to the environment, heat treatment has become the focus of research.
This article from the scientific and practical point of view, with the sewage sludge as the research object, according to the "harmless, reduction, resource-based" principle, according to the characteristics of sludge, pollution and utilization, the device in the tube furnace, the distribution and composition of thermal sludge with different water content obtained from the main product study on influence of pyrolysis characteristic temperature, and the effect of different proportion of biomass pyrolysis of sludge, and then makes a systematic analysis on the formation and mechanism of pyrolysis products.
Draw the following results. The effect of pyrolysis temperature on the pyrolysis temperature is beneficial to improve products: gaseous products, especially H2 and CO and other small molecular gas; water content on the influence of products: with the increase of moisture content, gas and liquid product yield has increased correspondingly, and the solid phase product rate were decreased. H2 rise in the production of the gas phase, CO production decline; influence of biomass on product raw material: volatile content is a key factor influencing the distribution of pyrolysis products, with biomass (sawdust) to improve the mixing ratio of the gas and liquid yield gradually increased, the yield of solid products.
目錄
摘 要 I
ABSTRACT II
第一章緒論 1
1.1背景與意義 1
1.2污泥處理方法 2
1.3.污泥熱解的研究現(xiàn)狀 4
1.3.1 國內(nèi)現(xiàn)狀 4
1.3.2國外現(xiàn)狀 5
1.4本文主要研究內(nèi)容 6
第二章實(shí)驗(yàn)部分 6
2.1實(shí)驗(yàn)原料 6
2.2 實(shí)驗(yàn)裝置及儀器 7
2.3 實(shí)驗(yàn)步驟 9
2.4 HSC軟件模擬 10
第三章 結(jié)果與討論 10
3.1實(shí)驗(yàn)數(shù)據(jù)分析 10
3.1.1溫度對(duì)熱解產(chǎn)物的影響 10
3.1.2 含水率對(duì)熱解產(chǎn)物的影響 12
3.1.3不同比例生物質(zhì)對(duì)熱解產(chǎn)物影響 13
第四章 結(jié)論與展望 15
4.1結(jié)論 15
4.2展望 16
參考文獻(xiàn) 16...
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