Problem of excessive pressure drop in sulfur recovery unit
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This post was last edited by liaifeng on 2018-9-2 at 15:51. Our company has recently installed a sulfur recovery unit with an annual capacity of 10,000 tons. The problem is that the pipeline pressure in the Claus furnace is 55 kPa, while the pressure at the outlet of the catcher is only 6–7 kPa. We suspect there might be a blockage, but we’re not sure where exactly the issue lies. We would appreciate any advice from everyone
After running for a while, sulfur accumulates everywhere – is it the SCOT process?
Start by checking each gas-saturation heat exchanger behind the combustion furnace: open the drain lines (process gas pipelines) of each gas-saturation heat exchanger to see if sulfur has clogged them up Take a look to see if water has entered the process pipeline? Especially pipelines with U-shaped bends
What is the pressure behind the waste heat boiler? What is the outlet pressure of the primary condenser? It’s possible that there are leaks in both the tube side and shell side
Is there no steam tracing for the pipeline? Is the sampler equipped with tracing? Is it blocked?