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不同蒸馏压力下的生物油分子蒸馏分离特性研究

王誉蓉 ,  王树荣 ,  王相宇 ,  郭祚刚

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引用本文: 王誉蓉, 王树荣, 王相宇, 郭祚刚. 不同蒸馏压力下的生物油分子蒸馏分离特性研究[J]. 燃料化学学报, 2013, 41(2): 177-182. shu
Citation:  WANG Yu-rong, WANG Shu-rong, WANG Xiang-yu, GUO Zuo-gang. Molecular distillation separation characteristic of bio-oil under different pressures[J]. Journal of Fuel Chemistry and Technology, 2013, 41(2): 177-182. shu

不同蒸馏压力下的生物油分子蒸馏分离特性研究

    通讯作者: 王树荣,Tel:0571-87952801;E-mail:srwang@zju.edu.cn。
  • 基金项目:

    国家自然科学基金(51276166) (51276166)

    "十二五"国家科技支撑计划(2011BAD22B07) (2011BAD22B07)

    浙江省杰出青年科学基金(R1110089) (R1110089)

    新世纪优秀人才支持计划(NCET-10-0741) (NCET-10-0741)

    浙江省重点科技创新团队计划(2009R50012)。 (2009R50012)

摘要: 采用分子蒸馏分离技术对热敏性生物油在不同蒸馏压力下的分离特性进行了研究。经过分子蒸馏分离后,生物油被分离为蒸出馏分油与残留馏分油,蒸出馏分油的得率随着压力的下降而显著增大,在700 Pa时达到了56.50%(质量分数)。在馏分油的物理性质方面,蒸出馏分油富集了生物油内的大部分水分,残留馏分油内水分得到了较好的脱除,其中,700 Pa下残留馏分油的水分含量降至4.20%(质量分数)。结合生物油及馏分油的GC-MS分析结果,对乙酸、苯酚、糠醛以及左旋葡聚糖等生物油内典型化合物在不同蒸馏压力下的分布特性进行了研究,获得了相应化合物在分子蒸馏过程中的富集规律。结合分离因子评估模型对生物油内14种代表化合物的富集特性进行了量化评价。

English

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  • 收稿日期:  2012-06-12
  • 网络出版日期:  2012-08-06
通讯作者: 陈斌, bchen63@163.com
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