If the reforming cycle hydrogen compressor stops suddenly, and the standby unit cannot be activated for some reason as well. What should be done when the hydrogen circulation is stopped?
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If the reforming cycle hydrogen compressor stops suddenly, and the standby unit cannot be activated for some reason as well. If the compressor can be put into use quickly, is it possible to avoid nitrogen purging? Is there any danger in doing this?
Although starting a reciprocating compressor is relatively simple, it still takes at least a dozen minutes; in fact, the heating furnace should be turned off first
Reduce the temperature and volume during pre-hydrogenation; if there is a line that carries high-pressure material from the reformer to the buffer tank at the reciprocating compressor inlet, it must be closed first to prevent the pre-hydrogenation pressure from reaching the reformer. A slightly higher pressure can be applied in pre-hydrogenation at high temperatures, depending on the actual conditions. In an emergency, it is possible to start the reciprocating machine without replacing N2.
After the reforming cycle hydrogen compressor stops, the standby unit cannot be started immediately either; there is no need for nitrogen purging, as there is pressure inside the unit and no air can enter, so nitrogen purging is not required. If you want to protect the catalyst, you can slowly release pressure in the high-pressure tank to maintain gas flow through the catalyst bed, so that when the compressor starts up, a large amount of heat from the heater does not enter the reactor and cause overheating of the reactor bed.