Hydrogen production from coking dry gas

2012-03-02View Original

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After being in use for four years and then removed, the conversion catalyst is gray in color for Z418, while Z417 can be black or red. Is it possible to analyze the reason for this?

Reply #22012-03-04

Gray and black are easy to understand, as they indicate poisoning and carbon deposition; I’ve never encountered red ones, so I’m keeping an eye on that...

Reply #32012-03-04

Is red the same as dark gray?

Reply #42012-03-06

Thank you all for your replies. I’m sorry; it’s specifically a light brown with a slight pink tint

Reply #52014-09-30

It could also be chlorine poisoning! The chlorine content in the steam and raw materials should be controlled.

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Hydrogen production from coking dry gas

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