Hello,

Are there any recent recommendations for the materials of costruction for the various equipment for a new SWS plant: the stripping column, overhead condenser and receiver, bottom and reflux pumps.
Should some inhibitor be injected to prevent high rates of corrosion?

regards,
         roker

Take a look at API 571, Figure 5-53.  Note the damage mechanisms indicated and then refer to mitigation methods in the appropriate part of the document.

Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/

Please find the followings as well.

1. API Publ.581, G-7, 2000
2. API RP571, para. 5.1.1.10 & 5.2.12, 2003
3. NACE Technical Committee Report (TG 347), 2007 Draft, “Review and Survey of Alkaline Carbonate SCC in Refinery Sour Waters”
4. API Publ.932-A and 932-B, 2002 & 2004
5. API Publ.944, “1972 Survey of Materials Experience and Corrosion Problems in Sour Water Stripers” November 1974
6. API Publ.948, “A Study of Variables That Affect the Corrosion of Sour Water Strippers,” May 1976
7.  API Publ.950, “Survey of Construction Materials and Corrosion in Sour Water Strippers ,” May 1976
8. API Publ.927, “1972 Sour Water Stripping Survey Evaluation”, 1973
9. API Publ.954, “Evaluation of Ammonia fixation components in actual refinery sour waters”, 1978

Hope this helps,

Have a look also at NACE "Materials Selection for Refineries and Associated Facilities", chap 2.

hope this help

S.

http://www.corrosionist.com