Tube life extended
Published: 26 February, 2015
A Caribbean producer of furfural, an organic compound derived from agricultural byproducts, reports it has replaced the existing tube in its heat exchangers with hyper-duplex stainless steel by SANDVIK MATERIALS TECHNOLOGY, and as a result says its tube lifecycles have extended from two to 15 years, with a profound impact on material costs.
The plant was experiencing problems with the lifecycles of existing standard stainless steel tube in several of its heat exchangers, used to process untreated seawater as the cooling media.
In some cases the existing tube needed replacing after just two years. A new material was therefore required that would better withstand exposure to seawater with sewage load.
The plant gradually upgraded the quality of its tube and, in 2008, Sandvik SAF 2707 HD tubes were installed in two overhead heat exchangers.
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For a refinery in Germany unscheduled shutdowns were reportedly eliminated following the installation of a new tube bundle in a heat exchanger using hyper-duplex SANDVIK SAF 2707 HD seamless tubes.
SANDVIK MATERIALS TECHNOLOGY reports it has supplied its Sandvik Sanicro 28 composite tubes to a eucalyptus pulp mill in Uruguay, helping to avoid loss of production time and also reduce costs for the customer.
