热扩散塔分离甲烷和氢的实验研究

• 作 者: 王黎 李明玉 国眼孝雄 班目贵裕 川合智 中西章夫
• 机 构: 河南大学化学化工学院!开封475001,河南大学化学化工学院!开封475001,东京农工大学!日本184,东京农工大学!日本184,三菱化学!日本100,三菱化学!日本100
• 出 处: 化工学报
• 发表日期: 1998年04期
• 关键词: 热扩散 热扩散塔 填料塔 温度梯度 气体流量 网状填料 对流流动 相对分子质量 脱氢反应 催化脱氢

The separation experiments of CH_4 and H_2 was carried out in a thermal diffusion column with and without packing.In the case of no packing added,the separation was affected by heating temperature,β（cut),and residence time.The temperature gradient is the driving force of the thermal diffusion separation. The separation degree was increased with increasing of heating temperature,and it was affected by βsharply.Under the conditions of higher heating temperature,the optimum separation was obtained with the β value which was close to the mole fraction of hydrogen in the feed.The separation degree was also affected by the residence time.In the case of packing column,the separation degree was higher for the packing with larger size.However,it was still lower than the no packing one.It was greatly improved by using mesh type packing.

The separation experiments of CH_4 and H_2 was carried out in a thermal diffusion column with and without packing. In the case of no packing added, the separation was affected by heating temperature, β (cut), and residence time. The temperature gradient is the driving force of the thermal diffusion separation. The separation degree was increased with increasing of heating temperature, and it was affected by βsharply. Under the conditions of higher heating temperature, the optimum separation was obtained with the β value which was close to the mole fraction of hydrogen in the feed. The separation degree was also affected by the residence time. In the case of packing column, the separation degree was higher for the packing with larger size.However, it was still lower than the no packing one. It was greatly improved by using mesh type packing.