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Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps featuring new technologies, particularly designed for use 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 health and safety standards by way of full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing software which poses explicit challenges to course of operators, together with the risks related to the handling of a deadly, extremely corrosive fluid which poses a possible hazard to plant tools, the individuals who work on website and the broader surroundings should leaks occur.
The process
HF Alkylation combines olefins (primarily a combination of propylene and butylene) with isobutene within the presence of a hydrofluoric acid catalyst to produce alkylate. A high-octane additive, alkylate is a critical 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 fresh fuels’ legislation has elevated the demand for alkylate, which can be liable for the anti-knocking property of unleaded petrol/gasoline in fashionable automobiles.
Potential risks
The HF alkylation course of poses a number of critical environmental and well being and security dangers if poorly managed, with the potential for acid runaway, accelerated equipment corrosion and related HF release. HF acid by its nature seeks out and assaults imperfections in cast metal components that may finally reduce the lifetime of pumps, valves and other equipment and worse still, end in product leakage. Failure-prone mechanical seals can leak dangerous course of fluids. The aggressive and damaging nature of HF acid places great significance on the choice of fabric of forged components, significantly by method of the pump casing and impeller.
Designed for resistance towards highly corrosive fluids similar to HF acids, magnetic drive sealless pumps supply whole containment with built-in reliability. Magnetic drive sealless pumps featuring new technologies have been specifically designed for use in hydrofluoric acid alkylation models 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 items and had been developed in response to the challenges of dealing with HF acid. – Image: HMD Kontro
HMD Kontro HF pump
The results of close collaboration between UOP Honeywell, the main licensor of HF alkylation expertise and HMD Kontro, and utilizing an progressive development course of, the HMD Kontro HF pump includes 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 era pumps are features which meet operator-specific wants for the HF alkylation course of. They include a pump casing in Alloy C22 materials, 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 forty bar (580 psi), eliminating the potential for leakage into the setting, and decreasing operational dangers and the related costs to satisfy stringent environmental and health and safety objectives. Finally, there’s steady monitoring to make sure a reliable sealless pump efficiency which incorporates leak detection instrumentation and safety in opposition to dry pump running (power management monitor).
With เกจวัดแรงดันpsi to leak, no seal buffer systems to assist and maintain and no supporting systems, the most recent magnetic drive sealless pump know-how offers significant safety, cost and operational benefits. Lower end-user installation costs and simplified maintenance requirements, make it an efficient whole-life proposition compared to standard mechanically sealed pumps.
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