超声乳化生物质柴油稳定性研究
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摘要
为提高乳化生物质柴油稳定性,以超声波为外加能量,构筑超声波加乳化剂的生物质柴油乳化体系,考查超声波频率、超声激励波形、超声功率与超声时间等超声因素对生物质柴油乳化效果及稳定性影响。根据试验要求设计槽式可变频率可控波形超声波乳化仪,在实验中改变超声波频率、波形、功率和处理时间,比较各因素条件下制备的乳化油稳定性。结果表明,在超声乳化生物质柴油效果及稳定性的影响因素中,影响最大为处理时间、其次为功率、频率最小为超声激励波形,超声作用的最佳操作条件是超声功率30 W,处理时间8 min,超声频率25 kHz以及超声波形为方波脉冲,此条件下制取的乳化油稳定性能最好,且燃烧特性良好,自然放置稳定时间可达2 256 h。
In order to improve the stability of bio-diesel fuel,the system which is combination of ultrasonic and bio-diesel fuel use ultrasonic as the additional energy,and investigate the Ultrasonic frequency,waveforms,power and ultrasonic time factors and the effects of bio-diesel fuel stability.Optimal operating parameters of ultrasonic generator were studied by orthogonal experiment.The ultrasonic generator could adjust frequency,power,waveform and treating time flexibly in order to compare the stability of bio-diesel fuel under different conditions.According to the results,treating time had the most significant in fluency on the stability,power and frequency was less important than it and waveform was the least.The optimal operating parameter was power of 30 W,frequency of 25 kHz,treating time of 8 min and waveform of square wave pulse.The emulsification stability under these conditions was the best;the setting time was 2 256 h.
In order to improve the stability of bio-diesel fuel,the system which is combination of ultrasonic and bio-diesel fuel use ultrasonic as the additional energy,and investigate the Ultrasonic frequency,waveforms,power and ultrasonic time factors and the effects of bio-diesel fuel stability.Optimal operating parameters of ultrasonic generator were studied by orthogonal experiment.The ultrasonic generator could adjust frequency,power,waveform and treating time flexibly in order to compare the stability of bio-diesel fuel under different conditions.According to the results,treating time had the most significant in fluency on the stability,power and frequency was less important than it and waveform was the least.The optimal operating parameter was power of 30 W,frequency of 25 kHz,treating time of 8 min and waveform of square wave pulse.The emulsification stability under these conditions was the best;the setting time was 2 256 h.
引文
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[2]Rozenberg L D.High-Intensity Ultrasonic Fields[M].New York:Plenum Pred,1971.
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[4]赵逸云,冯若.频率对声致羟自由基形成的影响[J].声学技术,1998,17(1):12-14.
[5]何德坪,陈锋,舒光翼.振动干扰波形对枝晶生长的影响[J].人工晶体学报,1989,18(4):262-266.
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[7]王黎明,王述洋.影响乳化型生物燃油稳定性的实验研究[J].黑龙江八一农垦大学学报,2010,10(5):26-29.
[8]蒋建国,杨世辉.槽式双频超声波发生器改善污泥脱水性能研究[J].应用基础与工程科学学报,2009,12(6):852-859.
[9]严勇文,隆志力.变频式超声波发生器的高速锁相研究[J].电子与封装,2010,10(2):35-38.
[10]Petrier C,Francony A.Ultrasonic waster water treatment Inci dence of ultrasonic frequency on the rate of phenol and carbon tet rachloride degradation[J].Ultrasonics Sonochemisty,1997(4):295-300.
[11]许锋,齐国荣.油水乳化柴油的实用性研究[J].环保与安全,1999(3):33-36.
[12]阮继政,冯莉.影响超声乳化柴油捕收剂稳定性的试验研究[J].煤炭科学技术,2011,2(2):106-109.
[2]Rozenberg L D.High-Intensity Ultrasonic Fields[M].New York:Plenum Pred,1971.
[3]戴咏川.超声波作用下高硫柴油深度脱硫研究[D].哈尔滨:哈尔滨工业大学,2009:17-22.
[4]赵逸云,冯若.频率对声致羟自由基形成的影响[J].声学技术,1998,17(1):12-14.
[5]何德坪,陈锋,舒光翼.振动干扰波形对枝晶生长的影响[J].人工晶体学报,1989,18(4):262-266.
[6]薛玉伟,季民,李文彬.超声功率对超声破解污泥的影响[J].化工学报,2007,58(4):1037-1041.
[7]王黎明,王述洋.影响乳化型生物燃油稳定性的实验研究[J].黑龙江八一农垦大学学报,2010,10(5):26-29.
[8]蒋建国,杨世辉.槽式双频超声波发生器改善污泥脱水性能研究[J].应用基础与工程科学学报,2009,12(6):852-859.
[9]严勇文,隆志力.变频式超声波发生器的高速锁相研究[J].电子与封装,2010,10(2):35-38.
[10]Petrier C,Francony A.Ultrasonic waster water treatment Inci dence of ultrasonic frequency on the rate of phenol and carbon tet rachloride degradation[J].Ultrasonics Sonochemisty,1997(4):295-300.
[11]许锋,齐国荣.油水乳化柴油的实用性研究[J].环保与安全,1999(3):33-36.
[12]阮继政,冯莉.影响超声乳化柴油捕收剂稳定性的试验研究[J].煤炭科学技术,2011,2(2):106-109.