Petrochemicals products, the group of products are Feedstock, PET, Packaging, Fibers and Recycled products.
A major producer of PTE , with plant through the world, contracted with PRE-heat to replace 3 existing plate type heat exchangers in their Montreal, Canada facility.
Pre-heat personnel made several trips to this facility to discuss the replacement process, materials construction, timing on the project, and to obtain critical dimensions.
Pre-heat designed 3 special I-U flow pattern heat exchangers using cross flow heat exchanger modules.
The clean air traveled through the I-pass of the exchanger, which was the inside of the membrane envelopes. The dirty air stream passed through the U-pass of the exchanger, which was on the outside of the membrane envelopes. This was done so that any liquids condensed out of the dirty air stream would collect in the drain pans in the bottom of the exchanger. Also, the U-pass side of the exchanger could be cleaned and any cleaning solution and particulate would exit the exchanger through the bottom drains located in the bottom shell of the exchangers. With this system, the exchangers could be cleaned in place and the customer would not have to be concerned with build up of condensed liquid and particulate building up in the exchanger and pre-maturely corroding out the exchanger.
PRE-heat engineers developed a 3D Model of the heat exchangers so the customer could put the heat exchanger model into his 3D drawing of the catalytic incinerator system to guarantee an exact replacement.
All 3 heat exchanger were built by PRE-heat, on schedule, and shipped to the plant for quick replacement during a 1 week planned shut down.
Three high pressure, high temperature heat exchangers, pre heating the air going into the catalytic oxidizer using the heat from the hot air leaving the oxidizer.