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Magnetic drive sealless pumps that includes new applied sciences, particularly 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 through full 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 dangers related to the handling of a lethal, extremely corrosive fluid which poses a potential hazard to plant gear, the people who work on site and the broader setting ought to leaks occur.
The process

HF Alkylation combines olefins (primarily a mixture 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 security part that offsets the excessive 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 is also answerable for the anti-knocking property of unleaded petrol/gasoline in fashionable automobiles.
Potential dangers

The HF alkylation process poses a variety of critical environmental and well being and security risks 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 cast metal elements that will in the end cut back the lifetime of pumps, valves and different gear and worse nonetheless, result in product leakage. Failure-prone mechanical seals can leak dangerous course of fluids. The aggressive and damaging nature of HF acid locations great importance on the choice of material of cast parts, notably in terms of the pump casing and impeller.
Designed for pressure gauge against extremely corrosive fluids corresponding to HF acids, magnetic drive sealless pumps supply total containment with built-in reliability. Magnetic drive sealless pumps featuring new technologies have been specifically designed to be used in hydrofluoric acid alkylation units and were developed in response to the challenges of handling HF acid.
Magnetic drive sealless pumps featuring new applied sciences have been particularly designed for use in hydrofluoric acid alkylation units and had been developed in response to the challenges of dealing with HF acid. – Image: HMD Kontro

HMD Kontro HF pump

The result of shut collaboration between UOP Honeywell, the main licensor of HF alkylation technology and HMD Kontro, and utilizing an progressive development course of, 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 features which meet operator-specific wants for the HF alkylation course of. They include 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 for leakage into the surroundings, and reducing operational dangers and the related costs to fulfill stringent environmental and health and security targets. Finally, there is continuous monitoring to ensure a reliable sealless pump performance which includes leak detection instrumentation and safety against dry pump operating (power control monitor).
With no seals to leak, no seal buffer methods to help and preserve and no supporting methods, the most recent magnetic drive sealless pump expertise presents important security, value and operational advantages. Lower end-user installation prices and simplified upkeep requirements, make it an efficient whole-life proposition compared to standard mechanically sealed pumps.
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