What should I do if the electric furnace cannot be used during the heating process of the ammonia synthesis catalyst?

Increase pressure and reduce circulation volume.

The situation you mentioned is a skill that must be mastered as a synthesis tower operator. We call it high pressure heating. Sometimes it's not all because the electric stove is broken, but to shorten the driving time. Because sometimes the system trips or stops for a short time, the synthesis tower is required to produce ammonia as soon as possible after recovery. Otherwise, the temperature rise process will be a venting process of the entire system, which is uneconomical. To use high-pressure heating, first of all, the scheduling value should be clear, the nature of the shutdown should be short-stop, and the synthesis tower should use high-pressure heating. Key points of operating positions: 1. When parking, the synthesis tower cuts off the gas seal tower, but does not relieve pressure. Maintain pressure and heat in the synthesis tower, and check whether the main valve, short circuit, cold shock, and auxiliary lines are closed. 2. A designated person is responsible for keeping an eye on the tower temperature (if it is below 380 degrees, immediately give up the high-pressure temperature increase and start the electric furnace plan instead). Others should check the working conditions of the circulation machine and the synthetic compressor and be ready to increase the amount at any time. The squad leader should closely contact and pay attention to the situation of excessive trace amounts in the previous process. 3. Once the fresh gas is qualified and the pressure is greater than that of the synthesis tower, air is introduced and the circulation machine is started. However, attention should be paid to controlling the circulation volume to be small. The water cooler can be filled with less or even no water. 4. Pay attention not to make the temperature difference between the upper and lower layers too large. In principle, the upper layer leads to the lower layer. If the temperature difference is large, the circulation volume must be increased. As long as the temperature of the upper layer is greater than 480 degrees at multiple points, normal operation can be carried out. Use auxiliary lines, cold shock in each section, circulation volume, water cooling, and ammonia cooling to stabilize the tower temperature. 5. Many people use this experience. Find a master. In short, this skill must be mastered.

If the circuit maintenance time is short and the shutdown time is relatively short, and the tower temperature is still controlled within the active range, generally a small high-voltage cycle can bring up the tower temperature.