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生物質(zhì)焦催化裂解萘和苯酚的實(shí)驗(yàn)
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of Naphthalene and Phenol over Biomass Char
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    摘要:

    通過(guò)生物質(zhì)制焦條件（制焦溫度、熱解速率,、原料種類(lèi)）的改變制備了不同的生物質(zhì)焦樣品,，并在熱裂解儀——?dú)庀嗌V/質(zhì)譜聯(lián)用裝置(Py-GC/MS)上進(jìn)行生物質(zhì)焦對(duì)焦油模型化合物萘和苯酚的在線催化裂解實(shí)驗(yàn)，考察了反應(yīng)溫度,、制焦條件,、制焦原料對(duì)萘和苯酚催化裂解轉(zhuǎn)化率的影響。結(jié)果表明,，反應(yīng)溫度越高,，生物質(zhì)焦條件下萘和苯酚的在線催化裂解轉(zhuǎn)化率越高；相同反應(yīng)條件下,，制焦溫度越高,，熱解速率越快，生物質(zhì)焦的比表面積,、孔容積越大,，催化活性越高。850℃快速熱解杉木焦對(duì)萘和苯酚的轉(zhuǎn)化率分別為55.6%和76%,；生物質(zhì)焦的掃描電鏡觀測(cè)和金屬氧化物含量測(cè)定結(jié)果表明不同原料制得生物質(zhì)焦催化活性差異與其表面形貌和金屬氧化物含量有關(guān),。

    Abstract:

    Biomass tar catalytic decomposition upon pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was studied by taking naphthalene and phenol as model compound. The effect of reaction temperature, charring conditions, such as the pyrolysis temperature, the heating rate and the precursors on model compound conversion was determined. The results showed that tar conversion increased with the increasing reaction temperature; higher charring temperature and higher heating rate could enlarge the surface area and pore volume of biomass chars and also enhance tar conversion. Conversion of naphthalene and phenol were 55.6% and 76% respectively on biomass char prepared at 850℃ with quick heating rate. Scanning electron microscope (SEM) and test results of char mineral oxides contents showed that catalytic activity of biomass chars was related to their surface morphology and the mineral oxides contents

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彭軍霞,趙增立,潘守聚,李海濱.生物質(zhì)焦催化裂解萘和苯酚的實(shí)驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(5):76-81. of Naphthalene and Phenol over Biomass Char[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(5):76-81.

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