【Daily Question】Methanol Technical Edition, July 13
Thread Content
This post was last edited by qy576100527 on 2017-7-13 22:18. What are the requirements for catalysts in methanol synthesis? 1. Good low-temperature performance 2. Good heat resistance and toxicity resistance 3. High mechanical strength with low resistance 4. Easily available raw materials at low cost
Methanol synthesis catalysts mainly include zinc-chromium catalysts and copper-based catalysts; the operating temperature for copper-based catalysts is 230–290 degrees, while that for zinc-chromium catalysts is 350–550 degrees
The operating temperature for copper-based catalysts is 230–290 degrees, while that for zinc-chromium catalysts is 350–550 degrees
Copper-based catalysts are generally used; they become active after being reduced from the copper oxide state. The inlet temperature is 220–240 degrees, while the bed temperature does not exceed 290 degrees. Heat is removed through a liquid circulation system using a steam drum
Copper-based catalysts are generally used; they become active after being reduced from the copper oxide state. The inlet temperature is 220–240 degrees, while the bed temperature does not exceed 285 degrees. Heat is removed through a liquid circulation system using a steam drum
Copper-based catalysts are generally used; they become active after being reduced from the copper oxide state. The inlet temperature is 220–240 degrees, while the bed temperature does not exceed 285 degrees. Heat is removed through a liquid circulation system using a steam drum；
Low reaction temperature, high activity, good selectivity, and high methanol purity
Low reaction temperature, high activity, and good selectivity
Copper-based catalysts are generally used; they become active after being reduced from the copper oxide state. The inlet temperature is 220–240 degrees, while the bed temperature does not exceed 285 degrees. Heat is removed through a liquid circulation system using a steam drum； The pressure is approximately 50-80 atmospheres ； Flow rate, air velocity, etc. are determined based on the load and the compressor ； The gas composition is determined by the conversion process, generally based on the hydrogen-to-carbon ratio.
1. Good activity at low temperatures; 2. Good heat resistance and toxicity resistance; 3. High mechanical strength with low resistance; 4. Easy to obtain raw materials and low cost.
Good activity at low temperatures； Good heat and toxicity resistance ； High mechanical strength and low resistance ； The raw materials are readily available and inexpensive.