April 2011

Maintenance and Reliability

Investigation: Failure of a surface condenser titanium tube

Advanced analytic methods determine contributing factors in heat exchanger corrosion problem

Al-Meshari, A., Saudi Basic Industries Corp.; Al-Enazi, S., Diab, M., SABIC Technology Centre

This case history focuses on the investigation of localized thinning of titanium (Ti) tubes in a surface condenser in an ammonia unit. Several characterization techniques were applied, including stereomicroscopy, optical microscopy and other methods. Detailed analyses showed that the tube thinning is attributed to iron-induced crevice corrosion. Possible root causes for failure involved the presence of high concentrations of iron (Fe) particles and chloride (Cl) ions in the steam condensate, which can accelerate the corrosion process. Another factor was tube flow-induced vibration that may have occurred at high processing flowrates, leading to a “localized” Fe deposition on the tub

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 email Peter Ramsay or call +44 20 3409 2240*.

*Access will be granted the next business day.

Related Articles

From the Archive



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