以薄膜分離石化業尾氣氫能提升能源效益

• Main Authors: Meng-Syuan He, 何孟軒
• Other Authors: Chih-Ju G. Jou
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/12721600006437325490

碩士 === 國立高雄第一科技大學 === 環境與安全衛生工程研究所 === 104 === The study simulated tail gas of petrochemical industry, using different component of mixture gas (H2/CH4=30:70,50:50,70:30;H2/CH4/C3H8=30:50:20, 40:40:20 , 50:30:20) as the feed gas, which separated and purified by the polysulfone hollow fiber membrane. By adjusting the feed pressure, exhaust gas flow, temperature, series and parallel operation, observing the influence of different parameters on the permeate hydrogen .Results are shown in maintaining the feed pressure of about 2.0~3.0 kg/cm2, the different components of mixture gas can both get the best hydrogen concentration and recovery of permeation hydrogen, while the feed gas pressure can be increased to improve the ability of hydrogen permeation, but over high pressure will also increase the permeation of methane and propane, cause to reducing the hydrogen permeation .In the same conditions, the hydrogen is more in the feed gas, the ability of passing through the membrane will better, also can get the better hydrogen permeate rate . In the case of adjusting operating conditions exhaust gas flow, Results are shown to raise exhaust gas flow can increase permeate hydrogen concentration. The driving force of system, can be increased by adjusting exhaust flow, improve the ability of hydrogen–permeable and hydrogen concentration, but over high exhaust flow also reduce the hydrogen permeation recovery.Improve penetration temperature will change the mean free path of the gas, making it easier for the gas molecules collide, enhance the ability of the gas diffusion, reducing of permeate hydrogen concentration, but will increase the recovery rate of hydrogen permeation. Series operation is the first permeate gas separator and then discharged into the second separator, can effectively improve the penetration of hydrogen concentration, but not suitable for improving the recovery rate of hydrogen. The parallel to feed gas while simultaneously into two separate, Can effectively improve the recovery rate of hydrogen permeation, but for improving the penetration of hydrogen concentration is low efficiency.