May 2004

Columns

HP Water Management: What about my softeners?

Water pretreatment for boilers operating below 1,000 psig (6.89 MPA) requires removal of scale-producing cations (calcium and magnesium) from filtered water. The common term for calcium and magnesium ..

Huchler, L. A., MarTech Systems, Inc.

Water pretreatment for boilers operating below 1,000 psig (6.89 MPA) requires removal of scale-producing cations (calcium and magnesium) from filtered water. The common term for calcium and magnesium ions in water is ?hardness.? The most common boiler pretreatment technology in refineries and chemical plants is sodium zeolite softening due to the relatively low cost and tolerance for changes in influent water quality. Synthetic zeolites, also known as cation exchange resin (Fig. 1) reversibly exchanges hardness for sodium or hydrogen ions.  Fig. 1  

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

Comments

Comments

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