Requirements of methanol synthesis catalysts for working environment
Temperature：
Appropriate temperature range: The suitable temperature range for different types of methanol synthesis catalysts varies. For example, copper-based catalysts (CuO catalyst) are currently the most commonly used methanol synthesis catalysts in industry, and their suitable operating temperature is generally in the range of 220 - 280℃.
Temperature influence: If the temperature is too low, the activity of the catalyst cannot be fully exerted, the rate of methanol synthesis reaction is slow, resulting in low production efficiency; if the temperature is too high, the catalyst is prone to sintering, causing the crystal grains of the active components to grow, the specific surface area to decrease, thereby reducing the activity and selectivity of the catalyst, and it may also accelerate the catalyst's deactivation.
Pressure：
Operating pressure range: The methanol synthesis reaction is a volume-reducing reaction. Increasing the pressure is conducive to the reaction proceeding in the direction of generating methanol. The industrial operation pressure of methanol synthesis is generally in the range of 5 - 10 MPa.
Pressure influence: If the pressure is too low, the reaction equilibrium shifts towards the reactant direction, and the yield of methanol decreases; if the pressure is too high, although the yield of methanol can be increased, the requirements for equipment also increase accordingly, increasing equipment investment and operating costs, and it may also cause the resistance of the catalyst bed layer to increase.
Related News
TOP