本文選題：生物質(zhì)垃圾 + 熱解　； 參考：《河北工業(yè)大學(xué)》2015年碩士論文

【摘要】：近幾年,我國城市生活垃圾處理問題日益嚴(yán)重,傳統(tǒng)的垃圾處理方式已無法滿足現(xiàn)代社會的要求,因此研究新的垃圾處理工藝迫在眉睫。與其它垃圾處理技術(shù)相比,垃圾熱解處理技術(shù)具有污染小、減量化程度高、能源再利用率高等特點(diǎn)。本課題組通過分析現(xiàn)有的垃圾熱解處理工藝,提出了一種垃圾在煙氣氣氛下的熱解工藝。本文以生物質(zhì)垃圾為研究對象,在前期研究的基礎(chǔ)上總結(jié)了生物質(zhì)垃圾的熱解機(jī)理及其影響因素,并進(jìn)行了管式爐等溫?zé)峤鈱?shí)驗(yàn)分析。基于管式爐熱解實(shí)驗(yàn)研究的局限性,設(shè)計(jì)了一種連續(xù)熱解反應(yīng)器,并利用該反應(yīng)器進(jìn)行了玉米秸稈在煙氣氣氛下的熱解實(shí)驗(yàn)。通過分析各因素對熱解產(chǎn)物分布的影響規(guī)律,煙氣氣氛下熱解工藝宜采用較高的熱解溫度,并且盡可能的延長氣相滯留時(shí)間。同時(shí)為了提高碳的轉(zhuǎn)化率,還需要保障一定的固相滯留時(shí)間。通過管式爐恒溫?zé)峤鈱?shí)驗(yàn),對比分析了白菜在煙氣和N2氣氛下的產(chǎn)氣規(guī)律。實(shí)驗(yàn)結(jié)果表明,煙氣氣氛下可以有效地增加CO產(chǎn)量。與前期實(shí)驗(yàn)結(jié)果相比,恒溫下熱解產(chǎn)氣規(guī)律更接近于實(shí)際情況。但是,由于管式爐無法實(shí)現(xiàn)連續(xù)進(jìn)料,熱解氣各組分濃度的分析結(jié)果要遠(yuǎn)小于實(shí)際值。自主設(shè)計(jì)的燃燒器和連續(xù)熱解反應(yīng)器可實(shí)現(xiàn)物料在煙氣氣氛下連續(xù)熱解。通過分析不同工況下的實(shí)驗(yàn)結(jié)果,得出在甲烷流量為3L/min,轉(zhuǎn)速為0.5r/min的工況下熱解效果最佳,熱解氣熱值約為2MJ/m3,物料熱解反應(yīng)時(shí)間大約為16min,處理量約為0.72kg/h。
[Abstract]:In recent years, the problem of municipal solid waste (MSW) disposal in our country has become more and more serious. The traditional waste disposal method can not meet the requirements of modern society, so it is urgent to study the new garbage treatment technology. Compared with other waste treatment technologies, the waste pyrolysis treatment technology has the characteristics of less pollution, higher reduction degree and higher energy reuse rate. Based on the analysis of the existing pyrolysis process, a pyrolysis process of garbage in flue gas atmosphere was proposed. In this paper, the pyrolysis mechanism of biomass waste and its influencing factors were summarized on the basis of previous research, and the experimental analysis of isothermal pyrolysis in tubular furnace was carried out. A continuous pyrolysis reactor was designed based on the limitation of the experimental study on pyrolysis of tubular furnace, and the pyrolysis experiment of corn straw in flue gas atmosphere was carried out by using the reactor. By analyzing the influence of various factors on the distribution of pyrolysis products, the pyrolysis process in flue gas atmosphere should adopt higher pyrolysis temperature and prolong the gas phase retention time as much as possible. At the same time, in order to improve the conversion of carbon, it is necessary to guarantee the retention time of solid phase. Through the experiment of constant temperature pyrolysis in tubular furnace, the gas production law of Chinese cabbage in flue gas and N2 atmosphere was compared and analyzed. The experimental results show that CO production can be increased effectively in flue gas atmosphere. Compared with the previous experimental results, the law of pyrolysis gas production at constant temperature is closer to the actual situation. However, because the tube furnace can not realize the continuous feed, the analytical results of the pyrolysis gas component concentration are much smaller than the actual value. The self-designed burner and continuous pyrolysis reactor can realize the continuous pyrolysis of materials in flue gas atmosphere. By analyzing the experimental results under different operating conditions, it is concluded that the pyrolysis efficiency is the best under the condition of methane flow rate of 3 L / min and rotational speed of 0.5r/min. The pyrolysis gas calorific value is about 2MJ / m3, the reaction time of material pyrolysis is about 16 mins, and the treatment capacity is about 0.72 kg / h.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X705

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 朱穎;金保升;肖剛;王小芳;張華剛;劉文杰;;不同氣氛下聚乙烯低溫?zé)峤鈿饣匦苑治鯷J];東南大學(xué)學(xué)報(bào)(自然科學(xué)版);2007年05期

2 李愛民,李延吉;固體廢物在固定床式熱解爐內(nèi)熱解產(chǎn)氣特性的實(shí)驗(yàn)研究[J];環(huán)境污染治理技術(shù)與設(shè)備;2003年04期

，

本文編號：1795096