Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps that includes new technologies, specifically designed to be used 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 requirements via complete fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses particular challenges to course of operators, together with the risks related to the handling of a deadly, highly corrosive fluid which poses a potential hazard to plant tools, the individuals who work on website and the broader environment 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 supply alkylate. A high-octane additive, alkylate is a critical security component that offsets the high vapour stress of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continuous tightening of unpolluted fuels’ laws has elevated the demand for alkylate, which can also be answerable for the anti-knocking property of unleaded petrol/gasoline in trendy autos.
Potential dangers
The HF alkylation course of poses a selection of severe environmental and health and safety dangers if poorly managed, with the potential for acid runaway, accelerated equipment corrosion and associated HF launch. HF acid by its nature seeks out and attacks imperfections in cast steel components that can in the end cut back the life of pumps, valves and other equipment and worse nonetheless, end in product leakage. Failure-prone mechanical seals can leak harmful course of fluids. The aggressive and damaging nature of HF acid places great significance on the choice of fabric of cast elements, significantly by method of the pump casing and impeller.
Designed for resistance towards highly corrosive fluids such as HF acids, magnetic drive sealless pumps offer whole containment with built-in reliability. Magnetic drive sealless pumps that includes new technologies have been specifically designed for use in hydrofluoric acid alkylation units and were developed in response to the challenges of handling HF acid.
Magnetic drive sealless pumps that includes new technologies have been specifically designed for use in hydrofluoric acid alkylation units and were 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 leading licensor of HF alkylation know-how and HMD Kontro, and using an progressive growth course of, the HMD Kontro HF pump includes a excessive integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been examined using new methods of Non-Destructive Examination (NDE).
Specialist design features
Built into the design of these next generation pumps are options which meet operator-specific needs for the HF alkylation course of. They embrace 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 เกจวัดแรงดันลมราคา , the pump’s secondary containment system is rated to 40 bar (580 psi), eliminating the potential of leakage into the surroundings, and lowering operational risks and the associated costs to fulfill stringent environmental and health and safety targets. Finally, there may be steady monitoring to ensure a reliable sealless pump efficiency which includes leak detection instrumentation and protection towards dry pump operating (power management monitor).
With no seals to leak, no seal buffer methods to assist and keep and no supporting methods, the most recent magnetic drive sealless pump know-how presents vital security, cost and operational benefits. Lower end-user set up prices and simplified upkeep requirements, make it an effective whole-life proposition in comparison with standard mechanically sealed pumps.
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