Natural gas water vapor reforming combined with PSA hydrogen production technology

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I. Brief description of the process: Natural gas, after being pressurized and desulfurized, is mixed with steam and fed into a special conversion furnace. There, it undergoes cracking and reforming under the action of catalysts, resulting in a conversion gas that contains components such as hydrogen, carbon dioxide, and carbon monoxide. After the heat from this conversion gas is recovered, carbon monoxide is converted into hydrogen through a shift reaction. The resulting gas is then purified using PSA to obtain hydrogen, while the exhaust gas from the PSA process is sent back to the conversion furnace for combustion in order to recover heat. The reaction principles are as follows: CH4+H2O→3H2+CO-Q (1) CO+H2O→H2+CO2+Q (2) The process flow diagram is as follows: file:///C:\Users\Acer\AppData\Local\Temp\ksohtml15260\wps2.png II. Technical features: The production technology is mature, and the operation is safe and reliable ； The operation control is reliable and practical, with a high degree of automation ； l It has low operating costs and a short payback period ； PSA-based air recirculation reduces both fuel consumption and exhaust emissions. III. Key Performance Indicators l Unit capacity: Generally ranges from 50 to 50,000 Nm3/h, depending on the user’s requirements. l Product purity: 99%~99.999% (v/v) l Product pressure: 0.5~3.0 MPa (G) l Temperature: Room temperature