Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps that includes new applied sciences, particularly 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 by way of full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing utility which poses specific challenges to process operators, including the dangers related to the dealing with of a lethal, extremely corrosive fluid which poses a possible hazard to plant tools, the people who work on web site and the wider setting ought to leaks occur.
The course of
HF Alkylation combines olefins (primarily a mixture of propylene and butylene) with isobutene within the presence of a hydrofluoric acid catalyst to produce alkylate. A high-octane additive, alkylate is a crucial safety component that offsets the excessive vapour pressure of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continuous tightening of fresh fuels’ laws has increased the demand for alkylate, which is also liable for the anti-knocking property of unleaded petrol/gasoline in trendy automobiles.
Potential risks
The HF alkylation course of poses a number of serious environmental and health and safety dangers if poorly managed, with the potential for acid runaway, accelerated gear corrosion and associated HF launch. HF acid by its nature seeks out and assaults imperfections in forged metallic components that will in the end scale back the life of pumps, valves and different equipment and worse nonetheless, lead to product leakage. Failure-prone mechanical seals can leak dangerous process fluids. The aggressive and damaging nature of HF acid locations nice importance on the selection of fabric of solid parts, significantly in phrases of the pump casing and impeller.
Designed for resistance in opposition to highly corrosive fluids similar to HF acids, magnetic drive sealless pumps offer total containment with built-in reliability. Magnetic drive sealless pumps featuring 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 dealing with HF acid.
Magnetic drive sealless pumps featuring new technologies have been specifically designed to be used in hydrofluoric acid alkylation items and have 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 leading licensor of HF alkylation expertise 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 these next generation pumps are options which meet operator-specific wants for the HF alkylation course of. They include a pump casing in Alloy C22 supplies, which has been confirmed to supply 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 lowering operational dangers and the associated prices to satisfy stringent environmental and health and security targets. Finally, there is steady monitoring to ensure a reliable sealless pump performance which incorporates leak detection instrumentation and protection against dry pump operating (power management monitor).
With Ultimate to leak, no seal buffer techniques to assist and maintain and no supporting systems, the most recent magnetic drive sealless pump expertise provides vital security, price and operational benefits. Lower end-user installation costs and simplified maintenance requirements, make it an efficient whole-life proposition in comparison with typical mechanically sealed pumps.
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