Tel：+86-825-7880081
Tel：+86-825-7880081
Engineering design
【Basic principle】The desalted water in the raw material liquid tank are calculated and mixed with methanol to pass into heat exchanger pressurized by feeding pump. The raw material liquid exchanged heat with the decomposition gas in the heat exchanger, which enter the vaporizer after heating. In the vaporizer, the methanol and water continue to vaporize and overheat. Then the overheated mixed gas goes into the reactor in which the reaction temperature is controlled in 230 ~280℃. The decomposition and shift reaction occur as following at the same time:
CH3OH→CO+2H2－Q1 (1)
CO+H2O→CO2+H2+Q2 (2)
Total reaction：CH3OH+H2O→CO2+3H2－Q (3)
The total reaction is endothermic and the heat required by the reactor and the carburetor is provided by electrical heating. The decomposition gas (mainly hydrogen and carbon dioxide gas) from the reactor is exchanged heat with the feed in a heat exchanger. After cooled by heat exchanger, the reforming gas is further cooled by circulating water in the cooler and then condensed so as to recycle the little desalted water and methanol to raw material liquid tank.
No. | Items | Description |
1 | Pressure, MPa.G | ≤1.2 |
2 | Temperature, ℃ | 40 |
3 | Flow, Nm3/h | According to user requirements |
4 | Gas Components, V% | H2 73 ~ 74.5%, CO2 23.5 ~ 25.0%, CO≤1.0% |
5 | Operation Mode | Continuous operation |
6 | Elasticity of Operation, % | 30 ~ 110 |
No. | Operation Conditions | |
1 | Temperature,℃ | 230 ~ 280 |
2 | Pressure, MPa | 1.2 |
3 | Space Velocity, h-1 | ≤1.2 |
4 | Methanol | In line with GB338-2011 standard, Purity ≥99.5%, Cl-1≤0.1mg/L |
5 | Desalted Water | P ≥0.3MPa(G), Conductivity≤10μS/cm, Dissolved O2≤2 mg/L, Cl-≤0.5 mg/L, S2-≤1 mg/L |
6 | Nitrogen | N2≥99.9%, O2≤0.1%, P≥0.3MPa |
7 | Catalyst Life, year | ≥3（Under normal operation condition） |
8 | Formal Device | Skid-mounted |
9 | Floor Area, m2 | According to the design |
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