Post-treatment after the quench tower gets clogged?
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My device uses the “SSR” process. If the quench tower becomes clogged and needs to be addressed, does the hydrogenation reactor have to be shut down? How to go through the process without shutting down? The start-up loop cannot be activated. Please give me some advice!
If the quench tower becomes clogged, the exhaust system can only be shut down, so the hydrogenation reactor must be stopped.
We also use the SSR process; there should be two routes for the exhaust gas after hydrogenation. One route goes through the steam generator, quench tower, and absorption tower before reaching the exhaust gas furnace, while the other route exits from the steam generator and goes directly to the exhaust gas furnace. This latter route serves as a backup path in case of issues with the quench tower.
Of course it has to be shut down – the entire exhaust stream needs to be diverted to the exhaust incinerator, and it can only be brought back online after the treatment is complete
In the SSR process, there should be three pathways for the exhaust gas after hydrogenation: 1. One pathway goes through the steam generator, quench tower, and absorption tower before reaching the exhaust gas furnace (this is the normal operation pathway); 2. Another pathway passes through the steam generator and quench tower, then to the circulation fan, followed by the exhaust gas heater, and finally to the hydrogenation reactor – this is a closed-loop system. However, there is also a pressure-controlled route in this pathway that leads directly to the incinerator (this pathway is used for heating and cooling during startup and shutdown); 3. There is yet another pathway that starts from the steam generator and goes directly to the exhaust gas furnace, and this is the backup route used when dealing with issues related to the quench tower.
The flow should be from the exhaust gas cooler outlet to the exhaust gas incinerator; while the hydrogenation reactor remains in operation, the quench tower and the exhaust gas absorption tower should be isolated for treatment. During this process, care must be taken in operating the incinerator to prevent overheating.
The gas resulting from the hydrogenation reaction is sent directly to the incinerator for combustion. The quench tower has its water drained, and steam is used to dissolve sulfur, in order to address any blockages in the quench tower