齐大制药化工课程设计.docVIP

齐 齐 哈 尔 大 学 化工原理课程设计 题 目 水吸收二氧化硫填料吸收塔设计 学 院 化学与化学工程学院 专业班级 制药工程 学生姓名 指导教师 成 绩 年 月 日 齐齐哈尔大学化工原理课程设计 齐齐哈尔大学化工原理课程设计 14 - - PAGE 24 摘 要 气体吸收过程是利用气体混合物中，各组分在液体中溶解度或化学反应活性的差异，在气液两相接触时发生传质，实现气液混合物的分离。一般说来，完整的吸收过程应包括吸收和解吸两部分。在化工生产过程中，原料气的净化，气体产品的精制，治理有害气体，保护环境等方面都广泛应用到气体吸收过程。 填料塔由于其通量大，阻力小，压降低，操作弹性大，塔内持液量小，填料易用耐腐蚀材料制造，结构简单，分离效率高等优点，使得其在某些处理量大要求压降小的分离过程中得到了广泛的应用并作为主要设备之一，越来越受到青睐。 本设计任务是用20℃清水洗收录其中的二氧化硫。对于气体的吸收应该采用气液传质设备填料塔，因为它具有较高的比表面积。在此吸收过程中，操作温度及操作压力较低，选用塑料散装填料。因塑料阶梯环的综合性能较好，所以选用DN38聚丙烯阶梯环填料。梁型支承板的性能优良，有利于气液传质，因此选用梁型支承板。因该吸收塔液相负荷较大，而气相负荷相对较低，故选用槽式液体分布器。 关键词：吸收；填料塔；水；二氧化硫 Abstract Gas absorption process is the use of the gas each component in the solubility in liquid or chemical reaction of the differences in the two-phase gas-liquid mass transfer occurs when the contact, gas-liquid mixture to achieve separation. In general, the integrity of the process should include the absorption and desorption two parts. In the chemical production process, the raw material of gas purification, gas refined products, management of hazardous gases and protect the environment are widely used in the process of absorbing the gas. Packed column because of its large flux, small resistance, the pressure to reduce operating flexibility, the tower holding a small amount of fluid, easy-to-use filler material corrosion-resistant, simple structure, high efficiency separation, making its deal with some of the large volume of requests The small drop in the process of separation is widely used as one of the major equipment, more and more popular. The present task is to design with 20 ℃ of water to wash ones record. The gas should be used to absorb the gas-liquid mass transfer equipment packed column, as it has a high surface area. In the absorption process, the operating temperature and low pressure operation, the selection of bulk plastic filler. Plastic ring ladder as a result of t