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Reactor Effluent Air Cooler Upgrade to 825

Attention to: Refinery Plant Manager / QHSE manager / Operational Manager

Many cases of failing equipment - some resulting in loss of containment and consequential fires- have been reported since 2010 in the process of Hydrocracking of crude oil feeds.

Typical licenseholders for this process issued Material Guidelines to worldwide refineries for urgent upgrade and inspection of their Reactor Effluent Air Coolers (REACs). These upgrades include the change towards material that has maximum corrosion resistance for Ammonium bisulphide NH4HS: Incoloy 825.

Especially REACs that have been constructed in Duplex Stainless Steel contain welds that have shown to be very vulnerable to Sulfide Stress Cracking due to the chemical composition of crude oil feeds, more specific: Corrosion attack of welds, leading to cracks. For more details please check the articles below.

Air Cooled Coolers that are used in High Pressure (>50 bar) and corrosive media applications, require a dedicated design and controlled welding process.

Bronswerk Heat Transfer is a well known and respected company based in The Netherlands, specialized in designing Air Cooled Coolers, Shell & Tube Heat exchangers and similar equipment since 1940.

For Air Fin Coolers, including this type of heavy duty REACs, Bronswerk has developed a header that is constructed with minimal use of welding, and can withstand extremely high pressures upto 1000 bar.

Conventional header boxes are designed from plate steel and contain many and long welds that need NDT inspections and are vulnerable for corrosion attack.

Constructed with this solid forged header, a design that has proved its reliability for more than 15 years, and manufactured completely in Incoloy 825, your REAC will be conform requirements and Metallurgy Guidelines as imposed by Licenseholders and International Authorities like API. Even more important, safe and reliable operation is garantueed for the next decades to come.

Please call or email Bronswerk Heat Transfer for any consult or quotation, in case of Upgrade, Revamp or New REAC installation:
Email: Info@bronswerk.com (Please mention the subject: REAC Material Upgrade)
Or call our technical and sales department: +31 33 2472 500



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Stationsweg 22 P.O. Box 92 Phone: +31 33 24 72 500
3862 CG Nijkerk 3860 AB Nijkerk Fax: +31 33 24 52 338
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407 22 Benešov nad Ploučnicí 407 22 Benešov nad Ploučnicí Fax: +420 412 586 340
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