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Heat Exchangers

Heat Exchangers

| Editor: Doris Popp

Karin Öhgren Gredegard, Marketing Manager Biofuels & Sugar: “Customers choose Alfa Laval because they know that we can handle their most challenging heat exchange and separation tasks.”
Karin Öhgren Gredegard, Marketing Manager Biofuels & Sugar: “Customers choose Alfa Laval because they know that we can handle their most challenging heat exchange and separation tasks.” (Picture: Wühr)

Alfa Laval has been providing solutions to the chemical, biotechnology and pharmaceutical industry for more than 125 years. At its stand at Achema, the Swedish-based company is showcasing a number of successful strategies for the various industry segments.

Three of them will be briefly discussed in this article. The company also has extensive experience in feedstock pretreatment, fermentation and the production of basic chemicals. For companies that are looking to utilize waste heat, Process Industry Segment Manager Mats Skogman gave the following advice: “Pinch analysis performed by many Production Managers is often based on obsolete tube heat exchangers and outdated energy prices.”

With state-of-the-art, high-efficiency plate heat exchangers, much more useable heat can be recovered including heat from hot flows that were previously regarded as useless. The primary quench position is one of the toughest at an ethylene plant. To stop the chemical reactions, the cracked gas is very quickly cooled in the heat exchanger. The heat exchanger in this position must be able to withstand erosive gas at temperatures of around 900 °C at 100 bar pressure.

The company’s Double Pipe Linear Quench Exchangers and Transfer Line Exchangers (TLE) give customers a choice of two different types of primary quenching heat exchangers. The heat exchangers enable ethylene producers to enhance plant reliability, operating time and energy efficiency according to Martin Jönsson, Market Unit Manager Petrochemicals.

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