Hydrolysis temperature of the sulfur unit at one revolution?
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This post was last edited by Shandong Huaxing on 2010-8-11 at 22:20. Due to low equipment load, in order to maintain the temperature of the second stage, the valves on the bypass lines for the first and second stages were opened wider, resulting in a temperature difference of less than 5 degrees between the inlet and outlet of the first stage. I would like to ask what the appropriate temperature for the inlet of the first stage during hydrolysis is, and how to determine it
It is sufficient to ensure that the bed temperature remains at least 300.
There are different opinions regarding this temperature; I once read in some materials that it just needs to be above the dew point of sulfur. Some say that a hydrolysis reaction occurs only at temperatures above 280 degrees. There are also 300, as mentioned above. There is no particularly authoritative statement; looking forward to answers and active participation
This post was last edited by Clauspolunit on 2010-8-13 at 11:51. The temperature must be higher than the dew point of sulfur; moreover, the hydrolysis reaction requires a high temperature, usually above 300 degrees
Catalysts that can promote the hydrolysis of organic sulfur are usually placed at the lower part of the primary converter; this is done first to prevent carbon deposition and thus protect the catalyst, and secondly because the temperature is higher at the lower part of the catalyst bed, which facilitates more complete hydrolysis of organic sulfur. Generally, the temperature at the lower part of the catalyst bed needs to be above 300 degrees to ensure thorough hydrolysis of organic sulfur.
With a temperature difference between the inlet and outlet of less than 5°C, not to mention the hydrolysis reaction, even the Claus reaction rarely occurs. Is it possible that the cross-line valve between Stage 1 and Stage 2 is set too wide, causing most of the airflow to flow into Stage 2? Under low load conditions, reverse operation should be carried out as much as possible.