Chemical applications
Coek has developed a dedicated specification for Ti Grade 9 tubes used in PTA applications, ensuring reliable performance at temperatures exceeding standard code limits. Additional market segments include brine purification, acetic acid production, and biofuels, where heat exchangers are manufactured using premium materials such as zirconium and Hastelloy.
type
S&T Heat exchangers Materials
Since the 1990s, Coek has specialized in high-performance heat exchangers for demanding applications. Using exotic materials such as Titanium , zirconium, tantalum and Hastelloy, projects span PTA production, brine purification, acetic acid, and biofuels, delivering reliable performance even under high-pressure and high-temperature condition.
Titanium
High pressure preheaters with Ti GR9 tubes
— PTACoek has become a market leader in the design and fabrication of Ti GR9 preheaters for PTA. Due to a track record of more than 35 years of experience, we have developped a dedicated chemical and mechanical spec for Ti GR9 to assure the operation at elevated temperatures above the code limits, and at the same time avoid fabrication risks by improving the elongation of the material needed during expansion of the tubes and avoid cracking during fabrication.
Condensors with Ti GR2 tubes
— PTAFor PTA applications, Coek has fabricated a wide range of Ti GR2 condensors.
Zirconium
Heat exchangers with Zirconium 702 tubes
— PTA, Brine purification, Acetic Acid, MEGCoek was involved in the fabrication of Zirconium heat exchangers for a wide range of applications like PTA, Acetic Acid, and MEG.
Hastelloy and Inconel
Heat exchangers in C276 hastelloy material with Sanicro™ 35 tube materials
— Bio FuelsCoek was involved in the fabrication of Hastelloy heat exchangers using Sanicro TM 35 tube materials, as well as Sanicro TM 35 internal plate material. The heat exchangers will be used for the fabrication of bio fuels.
Duplex en Superduplex
High pressure preheaters with 2RK65 tubes
— PTAFor PTA applications, Coek is involved in the fabrication of 904L preheaters using 2RK65 tubematerials.
S&T Heat exchangers
S&T Heat exchangers are used in a wide variety of demanding applications, each requiring specific design parameters in terms of pressure, temperature, and corrosion resistance. Below are some typical applications where our solutions provide reliable and long-lasting thermal performance.
PTA
Used in the production of purified terephthalic acid (PTA), these heat exchangers are engineered to withstand high temperatures and severe chloride conditions, ensuring durability and corrosion resistance.
Acetic Acid
Acetic acid processing requires heat exchangers that can handle highly corrosive conditions. Our cladded solutions—often in zirconium or tantalum—ensure optimal uptime and extended equipment lifespan.
Brine purification
Brine purification used during the fabrication of EPOXY resins is a technique which requires equipment using high end oxotic materials like Ti GR17 and Zirconium materials.
Projects
Over the years, Coek Engineering has delivered high-performance S&T heat exchangers for some of the world’s most demanding industrial processes. Each project is tailored to meet specific thermal, pressure, and corrosion challenges, using the most suitable materials and designs to ensure reliability and performance.