The additives are running out
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Due to delayed supply, the urgently needed additives will not be available for another dozen hours. The reserve in the additive tank will only last a few hours – does it mean the slurry preparation system needs to be stopped first? What about the gasification unit?
Reduce the processing capacity of the gasifier, increase the oxygen supply appropriately, lower the operating temperature and pressure as needed, strive to keep the gasifier running, properly treat the output gas, and send unqualified syngas directly to the flare. Waiting for the additives to arrive. Prepare a parking plan at the same time.
Generally, the coal slurry in the large coal slurry tank is sufficient for 7–8 hours of operation. The gasification furnace should first have its load reduced significantly to maintain production, trying to avoid shutting down the furnace until the co-solvent arrives.
Reduce the load on the gasification furnace; at the same time, decrease the amount of additives used in slurry preparation, and strengthen the monitoring of indicators related to slurry stability
Reduce the load slightly to maintain production; it’s fine for over ten hours. Add some water to the additives in order to keep the additive pump running, and monitor the slurry concentration. No major changes are necessary to the system
Thank you to the person above; what we’re doing now is adding water, and we’ll keep doing this until the additives arrive!
I’m not sure whether you use a liquid or a solid; I think it’s advisable to keep some solid additive on hand for emergency use. There are many reasons why additives may not arrive on time. Additionally, inventory should be regularly counted, including dispersants and flocculants.