CAJ | 학술논문

针对短程蒸馏分离效果评价，从馏出物中轻组分分率与残余物中重组分分率乘积最大化的分离目标出发，建立了评价短程蒸馏分离效果的分离因子；进而考虑短程蒸馏实际操作工况，确定了该分离因子的变化区间，并由此绘制了分离因子变化区域图。分析表明，该分离因子反映了原料液组成、馏出物得率及其中轻组分分率三者的综合影响，能有效表征短程蒸馏分离效果；根据分离因子变化区域图，可明确短程蒸馏操作工况与理想分离条件的接近程度，为评估提高分离效果的可能性和采取可行优化操作条件提供指导；论文最后通过二元混合液短程蒸馏分离实验，进一步表明了该分离因子对短程蒸馏操作条件优化具有实际指导价值。
침대단정증류분리효과평개，종류출물중경조분분솔여잔여물중중조분분솔승적최대화적분리목표출발，건립료평개단정증류분리효과적분리인자；진이고필단정증류실제조작공황，학정료해분리인자적변화구간，병유차회제료분리인자변화구역도。분석표명，해분리인자반영료원료액조성、류출물득솔급기중경조분분솔삼자적종합영향，능유효표정단정증류분리효과；근거분리인자변화구역도，가명학단정증류조작공황여이상분리조건적접근정도，위평고제고분리효과적가능성화채취가행우화조작조건제공지도；논문최후통과이원혼합액단정증류분리실험，진일보표명료해분리인자대단정증류조작조건우화구유실제지도개치。
Based on attempting to achieve a maximal multiplication value of the mass fractions of light component in distillate and the heavier component in residue, a separation factor was proposed to evaluate the separation effect of the short-path distillation operation. The regions of separation factor value were determined by considering the practical short-path distillation operation and, therefrom, the graphs were presented to show the variations of separation factor with three factors including the composition in feed mixture, the yield ratio of distillate and the mass fraction of light component in distillate. Analysis shows that the separation factor can reflect the integrated effects of these three factors, and can give a fair evaluation to the separation effect. Also, based on the graphs presented in the paper, the separation factor of a practical distillation operation can be compared with that of the ideal operation and from the comparison, the possibility of further enhancing separation effect can be evaluated and the measures for optimizing operation conditions can be adopted. Finally, experiments for the separation of a binary mixture were carried out in a short-path distillation device, and the results give further support to the guidance role of the separation factor in determining optimum operation conditions.