SCST-212 Thermal protection catalyst

Model：SCST-212

Thermal protection catalyst SCST-212 is used on the secondary stage of ammonia, hydrogen production and methanol plants using natural gas and coke oven gas to protect the secondary reforming catalyst from deactivation by overheating. The carrier is calcined at 1500℃ for several hours to improve the heat resistance, therefore the catalyst can keep the shape and thermal stability well.

The main reactions are as follows:

CH₄ + H₂O_（g）→ CO + 3H₂ － 206.3 KJ/mol

 CH₄ + 2H₂O_（g）→ CO₂ + 4H₂ －165.3 KJ/mol

                                                                            CO + H₂O_（g）→ CO₂ + H₂ + 41.19 KJ/mol

                                                              2H₂ + O₂ → 2H₂O + 241.8 KJ/mol

【Industrial Applications】

The catalyst is suitable for the system of ammonia, methanol, hydrogen plant using natural gas and coke oven gas；

The catalyst is suitable for the hydrogen plant using catalytic dry gas and coking dry gas;

The catalyst is suitable for methanol synthesis and ammonia plant using oil field gas, refinery gas and naphtha.

【Physical and chemical properties】

【Operation Conditions】

• Steam/feed gas: 0.5 ~ 3.5
• Operation temperature: ≤ 1500℃
• Operation pressure: ≤ 5.0MPa
• Operation space velocity: 600~3500h^-1 （dry gas）

【Product Advantages】

• Very good thermal stability: it can keep the shape in the condition of bear 1.9Kg for 4 hours under 1400℃;
• Larger size and has stronger thermal storage performance than porous ball;
• More active ingredient and better buffer action to the sudden temperature rise.