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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


Industrial Scale Heat Pump Technology

We have built a new test installation to run many different operation cases to determine the highest coefficient of performance with many different refrigerant types and compressors. This installation will be placed at TNO.

We can also apply this technology at your site! Interested? contact our sales department :


Bronswerk® designs world’s most ultra low noise fans

In recent years, Bronswerk® Heat Transfer has made serious investments to enable it to design the world's most ultra low noise axial fans for air coolers: the Whizz-Wheel®. These fans are huge energy savers and therefore result in a considerable reduction of operating costs. 'Considerable' in this case is also a euphemism for the gigantic dimensions of the fans. The first test model for example, has a diameter of nearly four metres. We now design fans with diameters that measure over ten metres!

Since 1940, Bronswerk® Heat Transfer has been designing, producing and supplying heat exchange installations that are used by companies such as Shell, Exxon Mobil, Texaco and Siemens in the worldwide gas and oil industries and utilities. One hundred and fifty staff are employed in Nijkerk, with a further hundred abroad. Bronswerk® has been growing over the last few years.

We meet Guus Bertels; he is constantly looking for the latest developments, innovations and breakthroughs. He has thirty years of experience in the field; a real expert. Guus: "We create solutions for problems that are so special, that existing techniques fail to perform. What we design must also work under the most extreme circumstances. From the Arctic to the Antarctic, from the highest mountains to the deepest seas, from the wettest places to the driest deserts, our solutions must perform under any conditions. We therefore invest heavily in knowledge/know-how and technology."

How does this reflect in the design of Whizz-Wheel® fans? Guus: "It is a good example of the innovative strength that we have. Traditional cooler fans are usually driven by gear boxes or v-belts. We looked for an alternative. Eventually, we designed new drive concepts which enable the Whizz Wheel® fans to be smaller, lighter and more quiet. They still comply to the strictest noise regulations and the efficiency of the shaft power has been increased by over thirty percent. They are therefore the most ultra low noise and ultra efficient fans in the world. This allows us to save a vast amount of energy.
More images
WhizzWheel impression WhizzWheel fan WhizzWheel detail Air-cooled cooler WhizzWheel fan
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