Continuous reforming problem
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The octane rating of the gasoline produced by continuous reforming has been declining. The 95-octane blended gasoline produced by our plant meets the specifications, but its octane rating has been dropping over the past couple of days, reaching 85. The temperature in all four reactors is also decreasing, and hydrogen has been detected in the regeneration cycle gas. What could be causing this? Thank you.
Check the plate exchanger and the raw material lift pump; test the reactor feed – it is very dangerous to have hydrogen in the regeneration gas
Hydrogen was detected in the regeneration cycle gas; does the regeneration system not have self-protection? Are there any other abnormal phenomena in low octane number operation? Such as changes in the purity and composition of recycled hydrogen
This post was last edited by Front Row Viewer on 2019-3-22 08:25. I also want to know what the reason is
Is it sulfur poisoning? What are the levels of hydrogen sulfide in the circulating stream and the sulfur content in the reforming feed?
Observe the trends and timing of temperature drop changes in the 4 reactors to determine whether it is due to poisoning or a problem with the catalyst itself