Combined production technology of hydrocarbons via methanol dehydration and hydrogen and carbon dioxide via reforming
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Combined feeding of methanol and liquefied gas effectively reduces waste emissions and improves the overall efficiency of the enterprise
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Characteristics of the MTH reaction for hydrocarbon production from methanol dehydration: 1. Exothermic reaction: 1.74 MJ/kg of methanol. 2. Reaction steps: A: Etherification; B: Formation of low-carbon olefins; C: Coupling/alkylation/aromatization, etc. 3. Typical distribution of hydrocarbon products: Dry gas: Hydrogen, methane, ethane, etc., about 2%; Liquefied gas: C3 and C4 compounds, about 13%; Gasoline: C5–C12 compounds, about 80%; Tetramethylbenzene accounts for around 6% and requires treatment
The reaction equations for the formation of methanol from carbon monoxide, carbon dioxide, and hydrogen are as follows:
CO + 2H2 ≒ CH3OH
CO2 + 3H2 ≒ CH3OH + H2O
CO + 2H2 ≒ CH3OH
CO2 + 3H2 ≒ CH3OH + H2O