【摘要】 运用Aspen Plus流程模拟软件,对某天然气乙炔法醋酸乙烯装置中的乙醛精馏塔进行了模拟,模拟结果与实际工况数据吻合良好。在此基础上,利用Aspen Plus中的Model Analysis Tools,对乙醛精馏塔的侧线和各主要操作参数进行了分析及初步优化。经优化后,乙醛回收率从98.6%提高到99.5%;侧线采出产品中丙酮质量分数从19.9%提高到20.5%。更多还原

【Abstract】 A model of the acetaldehyde distillation in a vinyl acetate production unit based on vapor acetylene route was built and Aspen Plus software was used to simulate it.Simulated results were in good agreement with actual data.Further,the side stream and key operation parameters for acetaldehyde distillation were analyzed and optimized by Model Analysis Tools of Aspen Plus.After optimization,acetaldehyde recovery increased from 98.6% to 99.5%,and the mass fraction of acetone in side draw increased from 19.9% to 20.5%.更多还原