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Challenging applications within the Alkylation unit

Challenging applications within the Alkylation unit

Alkylation, the conversion of isobutene and alkenes (primarily propene and butane) into a gasoline component, requires precise control of the catalyst, Sulfuric Acid Alkylation Unit (SAAU) or Hydrofluoric Acid Alkylation Unit (HFAU).  Fluid catalytic cracking is a critical conversion process dependent on accurate flow rate and pressure control for the production of the desired gasoline, alkene gases, and other products.  Equipment and products durable for inhospitable and corrosive conditions are paramount to maintaining safety and environmental criteria.

We offer flow control and isolation technologies that deliver the accuracy, reliability, and performance that ensures safe and optimal performance of an alkylation unit.

The two most common types of Alkylation processes are sulfuric acid and hydrofluoric acid.

Sulfuric acid generally uses carbon steel valve bodies with Alloy-20 or similar for trim, or all Alloy-20 construction depending on the concentrations. 

Hydroflouric acid is considered a more dangerous method of Alkylation as it is deadly to human contact in any form. The two major process licensors are UOP and Phillips 66. Both licensors require very specialized valve designs, material selections such as carbon steel with Monel trim or all Monel depending on concentrations, and safety features such as acid indicating paints and fire-safe requirements.

Prevent environmental and health risks
Ensure accuracy, reliability, and performance
Provide safe control and isolation in severe process conditions

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