Device name: pressure swing adsorption hydrogen extraction device

Installation scale: 4000Nm³/h

Device customer: Dongying Jiahao Chemical Co., Ltd.

Process principle:

After the hydrogen-containing (H₂) mixed gas enters the adsorption tower of the pressure swing adsorption (PSA) device, the adsorption capacity of the adsorbent in the adsorption bed for each component in the gas mixture varies with pressure, and the raw gas is adsorbed when pressurized The impurity in the adsorbent and the difficult-to-adsorb component (hydrogen) are output as a product from the outlet end of the adsorption bed. During decompression, the adsorbed impurity component is desorbed and desorbed, while the adsorbent is regenerated. At least four adsorbent beds are used for cyclic operation. Realize continuous output of product hydrogen.

Raw gas:
　　 methanol cracking gas, ammonia cracking gas, methanol tail gas, formaldehyde tail gas
　　Shift gas, refined gas, hydrocarbon steam reformed gas, fermentation gas, polysilicon tail gas
　　 Semi-water gas, city gas, coke oven gas
　　 Dry gas cracking in refineries, tail gas reforming in refineries
　　 Other gas sources containing H₂

Technical index:
Raw gas:
　　Applicable pressure: 0.4~4.0MPa (gauge pressure)
　　Applicable temperature: normal temperature
　　 The output product of this device: H₂
　　H₂ purity: 98~99.999% (V ), produced according to different uses and requirements of users
　　H₂ yield: 80~98%
　　System resistance drop P: 0.05~0.1MPa
　　 output temperature: normal temperature
　　 Note: H₂ yield is related to raw material composition, pressure and product H₂ purity.