May 2021

Special Focus: Maintenance and Reliability

Thick-wall reactor shell repair procedure after damage detection at an interface in a hydrocracking unit

The vessel and reactor operating in a refinery may undergo various deteriorations due to their operating conditions.

Chidambaram, S., Central Mechanical Research Institute

The vessel and reactor operating in a refinery may undergo various deteriorations due to their operating conditions.1 Therefore, to protect the vessel and reactor from such deteriorations, the inner surface of the wall should be cladded by stabilized austenitic stainless-steel grades like SS321 and SS347. However, reactors and/or vessels are often composed of mostly chromium molybdenum (Cr-Mo) alloy steel grades, which is enough to maintain structural stability during operations at full capacity load. The combination of low-alloy steel with stabilized austenitic steel grades was obtained by dissimilar welding processes between clad plates or by a weld overlay.2 One such similar combination

Log in to view this article.

Not Yet A Subscriber? Here are Your Options.

1) Start a FREE TRIAL SUBSCRIPTION and gain access to all articles in the current issue of Hydrocarbon Processing magazine.

2) SUBSCRIBE to Hydrocarbon Processing magazine in print or digital format and gain ACCESS to the current issue as well as to 3 articles from the HP archives per month. $409 for an annual subscription*.

3) Start a FULL ACCESS PLAN SUBSCRIPTION and regain ACCESS to this article, the current issue, all past issues in the HP Archive, the HP Process Handbooks, HP Market Data, and more. $1,995 for an annual subscription.  For information about group rates or multi-year terms, contact J'Nette Davis-Nichols at Jnette.Davis-Nichols@GulfEnergyInfo.com or +1 713.520.4426*.

*Access will be granted the next business day.

Related Articles

From the Archive

Comments

Comments

{{ error }}
{{ comment.comment.Name }} • {{ comment.timeAgo }}
{{ comment.comment.Text }}