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HZSM—5催化提質(zhì)焦油燃燒特性研究
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公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)經(jīng)費(fèi)資助項(xiàng)目(20100306306)


Combustion Characteristic of Bio-tar by HZSM—5 Catalytic Upgrading
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    摘要:

    采用耐馳同步熱重分析儀,，對(duì)HZSM—5催化提質(zhì)前后焦油的理論燃燒特性和動(dòng)力學(xué)進(jìn)行分析。結(jié)果表明,，催化提質(zhì)前,、后焦油燃燒過(guò)程約分為4個(gè)階段：輕質(zhì)有機(jī)物揮發(fā)段、揮發(fā)分燃燒段,、難揮發(fā)組分燃燒段和殘留物燃燒階段,，原始焦油前2個(gè)階段失重率約為75%，而提質(zhì)焦油失重率約為90%,。隨著升溫速率增加,，提質(zhì)焦油最大燃燒速率顯著增加，燃燒穩(wěn)定性明顯提高,。根據(jù)熱重曲線計(jì)算動(dòng)力學(xué)參數(shù),，提質(zhì)焦油的活化能的變化與熱重試驗(yàn)結(jié)果符合,，明顯降低。應(yīng)用熱紅外對(duì)焦油的燃燒煙氣進(jìn)行燃燒過(guò)程分析,，氣體產(chǎn)物生成主要分為241~380℃,、380~500℃和500~600℃3個(gè)階段。

    Abstract:

    Combustion characteristics and kinetics of bio-tar before and after catalytic upgrading were studied on a thermogravimetric apparatus. The results showed that the combustion process was divided into four stages: light organics volatilization, volatilization content combustion, less volatilization content combustion and residue combustion. Weight loss in the first two stages of raw tar was about 75%, whereas that of tar after upgrading was about 90%. With the increasing heating rates, weight loss rate increased heavily along with significantly enhanced combustion stability. According to thermogravimetric curve calculation kinetic parameters, activation energy of upgrading tar was lowered and in agreement with that from TG analysis. The gas from combustion was analyzed by Fourier transform infrared spectroscopy method, which showed the gaseous products generated in three phases of 241~380℃, 380~500℃ and 500~600℃.

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蔣恩臣,趙創(chuàng),王明峰,熊磊明. HZSM—5催化提質(zhì)焦油燃燒特性研究[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2013,44(Supp1):138-142. Jiang Enchen, Zhao Chuang, Wang Mingfeng, Xiong Leiming. Combustion Characteristic of Bio-tar by HZSM—5 Catalytic Upgrading[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(Supp1):138-142.

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  • 在線發(fā)布日期: 2013-10-22
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