【Q&A Question 027】May 17, 2016
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This post was last edited by liuquan1100 on 2016-5-17 12:55. [Q&A Question No. 027] May 17, 2016: During hydrocracking maintenance, which areas need to be passivated with ferrous sulfide? The answer key will be available after responding; scoring is based on answering the key points. High hydrogen sulfide areas in the hydrogenation unit vessels.
High hydrogen sulfide areas in the hydrogenation unit vessels.
High-pressure separator, high-pressure heat exchanger, reflux tank, tower, etc
Reactor outlet, discharge port, inlet and outlet of the recycled hydrogen desulfurization tower, etc
Places where hydrogen sulfide tends to accumulate, such as the upper part of the distillation tower, the top condenser, the reflux drum, and pipelines.
Hydrogenation vessels and high hydrogen sulfide areas