Sealless pump design tackles HF alkylation

เครื่องมือที่ใช้วัดความดันคือ featuring new applied sciences, specifically designed to be used in Hydrofluoric Acid (HF) Alkylation, have been developed in response to the challenges of dealing with HF acid.
The new HMD Kontro sealless pump ensures conformity with all environmental well being and security standards through full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing software which poses particular challenges to process operators, including the risks associated with the handling of a deadly, highly corrosive fluid which poses a possible hazard to plant gear, the individuals who work on site and the wider setting ought to leaks happen.
The course of
HF Alkylation combines olefins (primarily a combination of propylene and butylene) with isobutene in the presence of a hydrofluoric acid catalyst to produce alkylate. A high-octane additive, alkylate is a important safety element that offsets the high vapour pressure of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continual tightening of unpolluted fuels’ legislation has increased the demand for alkylate, which can additionally be responsible for the anti-knocking property of unleaded petrol/gasoline in modern vehicles.
Potential dangers
The HF alkylation process poses a quantity of critical environmental and health and safety risks if poorly managed, with the potential for acid runaway, accelerated tools corrosion and associated HF launch. HF acid by its nature seeks out and attacks imperfections in forged metal elements that may in the end reduce the life of pumps, valves and other tools and worse nonetheless, end in product leakage. Failure-prone mechanical seals can leak harmful process fluids. The aggressive and damaging nature of HF acid locations great significance on the choice of material of forged parts, notably when it comes to the pump casing and impeller.
Designed for resistance against extremely corrosive fluids such as HF acids, magnetic drive sealless pumps supply total containment with built-in reliability. Magnetic drive sealless pumps that includes new applied sciences have been specifically designed for use in hydrofluoric acid alkylation items and have been developed in response to the challenges of handling HF acid.
Magnetic drive sealless pumps featuring new applied sciences have been specifically designed to be used in hydrofluoric acid alkylation models and have been developed in response to the challenges of handling 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 using an progressive growth process, the HMD Kontro HF pump features a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been tested using new strategies of Non-Destructive Examination (NDE).
Specialist design features
Built into the design of those subsequent generation pumps are features which meet operator-specific needs for the HF alkylation course of. They embrace a pump casing in Alloy C22 materials, which has been proven to offer the necessary resistance to corrosion and also meets NDE necessities for HF acid. In addition, the pump’s secondary containment system is rated to 40 bar (580 psi), eliminating the potential of leakage into the surroundings, and decreasing operational risks and the related prices to meet stringent environmental and health and security targets. Finally, there’s steady monitoring to ensure a dependable sealless pump performance which includes leak detection instrumentation and safety towards dry pump running (power management monitor).
With no seals to leak, no seal buffer techniques to support and preserve and no supporting techniques, the most recent magnetic drive sealless pump technology offers significant safety, price and operational benefits. Lower end-user set up prices and simplified maintenance requirements, make it an effective whole-life proposition in comparability with conventional mechanically sealed pumps.

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