Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps that includes new technologies, specifically designed for use in Hydrofluoric Acid (HF) Alkylation, have been developed in response to the challenges of handling HF acid.
The new HMD Kontro sealless pump ensures conformity with all environmental health and safety standards via full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses explicit challenges to process operators, including the risks related to the handling of a lethal, extremely corrosive fluid which poses a potential hazard to plant tools, the people who work on site and the wider surroundings ought to leaks happen.
The process
HF Alkylation combines olefins (primarily a mix of propylene and butylene) with isobutene in the presence of a hydrofluoric acid catalyst to supply alkylate. A high-octane additive, alkylate is a crucial safety component that offsets the high vapour pressure of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline supplies. The continuous tightening of clean fuels’ legislation has elevated the demand for alkylate, which can additionally be answerable for the anti-knocking property of unleaded petrol/gasoline in trendy vehicles.
Potential risks
The HF alkylation course of poses a number of critical environmental and well being and security risks if poorly managed, with the potential for acid runaway, accelerated equipment corrosion and associated HF launch. HF acid by its nature seeks out and assaults imperfections in cast steel elements that may finally reduce the lifetime of pumps, valves and other tools and worse nonetheless, lead to product leakage. Failure-prone mechanical seals can leak dangerous process fluids. เกจวัดแรงดันลม and damaging nature of HF acid places nice significance on the selection of material of cast elements, significantly by way of the pump casing and impeller.
Designed for resistance against extremely corrosive fluids such as HF acids, magnetic drive sealless pumps offer total containment with built-in reliability. Magnetic drive sealless pumps that includes new applied sciences have been specifically designed to be used in hydrofluoric acid alkylation units and have been developed in response to the challenges of handling HF acid.
Magnetic drive sealless pumps featuring new technologies have been particularly designed to be used in hydrofluoric acid alkylation models and were developed in response to the challenges of dealing with HF acid. – Image: HMD Kontro
HMD Kontro HF pump
The result of close collaboration between UOP Honeywell, the main licensor of HF alkylation know-how and HMD Kontro, and utilizing an progressive improvement course of, the HMD Kontro HF pump contains a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been examined utilizing เกจวัดแรงดันเบนซิน of Non-Destructive Examination (NDE).
Specialist design features
Built into the design of these subsequent technology pumps are options which meet operator-specific wants for the HF alkylation process. They include a pump casing in Alloy C22 supplies, which has been confirmed to offer the necessary resistance to corrosion and likewise meets NDE requirements for HF acid. In addition, the pump’s secondary containment system is rated to 40 bar (580 psi), eliminating the chance of leakage into the surroundings, and reducing operational risks and the related costs to fulfill stringent environmental and health and security objectives. Finally, there is steady monitoring to make sure a reliable sealless pump performance which incorporates leak detection instrumentation and safety in opposition to dry pump running (power control monitor).
With no seals to leak, no seal buffer methods to assist and maintain and no supporting techniques, the latest magnetic drive sealless pump know-how presents important safety, cost and operational advantages. Lower end-user set up prices and simplified upkeep necessities, make it an effective whole-life proposition in comparison with typical mechanically sealed pumps.

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