基于中间再沸器的热泵精馏是常规热泵的新拓展,可以推广应用于大温差精馏体系。将该技术应用于氯化苄的侧反应器/精馏塔耦合工艺,建立了其基于中间再沸器的热泵精馏新流程。采用理想热力学模型计算相平衡,等熵压缩模型模拟压缩机,运用...基于中间再沸器的热泵精馏是常规热泵的新拓展,可以推广应用于大温差精馏体系。将该技术应用于氯化苄的侧反应器/精馏塔耦合工艺,建立了其基于中间再沸器的热泵精馏新流程。采用理想热力学模型计算相平衡,等熵压缩模型模拟压缩机,运用数值处理软件Matlab,基于Newton-Raphson法对氯化苄的热泵精馏工艺进行了模拟计算,考察了关键参数对精馏过程能耗的影响,得出了适宜的工艺操作条件。结果表明:当中间再沸器安装于第7与第8块塔板间,最小传热温差为10 K,换热量为90 k W时,过程能耗较低。在工艺主体结构与分离任务相同的情况下,与基础工艺相比,热泵精馏工艺可节约年操作费用31.0%,年度总费用17.0%。展开更多
In this paper,benzyl chloride,benzalcohol and phenol was dissociated from phenolic resin by adopting water vapour distillation method.We had determinated simultaneously benzyl chloride,benzalcohol and phenol in mixed ...In this paper,benzyl chloride,benzalcohol and phenol was dissociated from phenolic resin by adopting water vapour distillation method.We had determinated simultaneously benzyl chloride,benzalcohol and phenol in mixed solution by gas chromatography.The method has the advantages of simplicity,accuracy,strong practicality and so on.It is suitable for fast determination in factory.展开更多
In this paper,Dissolved the special phenolic resin for carbon material in alcohol,and thenextracted benzyl chloride by water and trichloromethane in samples.Benzyl chloride was separated and determined using gas chrom...In this paper,Dissolved the special phenolic resin for carbon material in alcohol,and thenextracted benzyl chloride by water and trichloromethane in samples.Benzyl chloride was separated and determined using gas chromatography.The method is accurate,fast and simple.展开更多
文摘基于中间再沸器的热泵精馏是常规热泵的新拓展,可以推广应用于大温差精馏体系。将该技术应用于氯化苄的侧反应器/精馏塔耦合工艺,建立了其基于中间再沸器的热泵精馏新流程。采用理想热力学模型计算相平衡,等熵压缩模型模拟压缩机,运用数值处理软件Matlab,基于Newton-Raphson法对氯化苄的热泵精馏工艺进行了模拟计算,考察了关键参数对精馏过程能耗的影响,得出了适宜的工艺操作条件。结果表明:当中间再沸器安装于第7与第8块塔板间,最小传热温差为10 K,换热量为90 k W时,过程能耗较低。在工艺主体结构与分离任务相同的情况下,与基础工艺相比,热泵精馏工艺可节约年操作费用31.0%,年度总费用17.0%。
文摘In this paper,benzyl chloride,benzalcohol and phenol was dissociated from phenolic resin by adopting water vapour distillation method.We had determinated simultaneously benzyl chloride,benzalcohol and phenol in mixed solution by gas chromatography.The method has the advantages of simplicity,accuracy,strong practicality and so on.It is suitable for fast determination in factory.
文摘In this paper,Dissolved the special phenolic resin for carbon material in alcohol,and thenextracted benzyl chloride by water and trichloromethane in samples.Benzyl chloride was separated and determined using gas chromatography.The method is accurate,fast and simple.