Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps featuring new technologies, 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 safety requirements through complete fluid containment. – Image: HMD Kontro

Hydrofluoric acid alkylation is a chemical/hydrocarbon processing utility which poses particular challenges to course of operators, together with the risks associated with the dealing with of a deadly, highly corrosive fluid which poses a possible hazard to plant tools, the individuals who work on web site and the wider surroundings should leaks happen.
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HF Alkylation combines olefins (primarily a mix of propylene and butylene) with isobutene within the presence of a hydrofluoric acid catalyst to supply alkylate. A high-octane additive, alkylate is a important safety element that offsets the excessive vapour strain of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline supplies. The continuous tightening of unpolluted fuels’ legislation has increased the demand for alkylate, which can also be responsible for the anti-knocking property of unleaded petrol/gasoline in modern autos.
Potential dangers

The HF alkylation process poses a selection of critical environmental and well being and security 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 cast steel parts that will ultimately cut back the lifetime of pumps, valves and different equipment and worse nonetheless, end in product leakage. pressure gauge 10 bar -prone mechanical seals can leak harmful course of fluids. The aggressive and damaging nature of HF acid locations great importance on the selection of fabric of cast components, notably when it comes to the pump casing and impeller.
Designed for diaphragm seal in opposition to extremely corrosive fluids corresponding to HF acids, magnetic drive sealless pumps offer 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 were developed in response to the challenges of handling HF acid.
Magnetic drive sealless pumps that includes new technologies have been particularly designed to be used in hydrofluoric acid alkylation units and had been developed in response to the challenges of handling HF acid. – Image: HMD Kontro

HMD Kontro HF pump

The results of shut collaboration between UOP Honeywell, the leading licensor of HF alkylation technology and HMD Kontro, and using an innovative development course of, the HMD Kontro HF pump contains a excessive 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 options

Built into the design of these subsequent technology pumps are features 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 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 possibility of leakage into the setting, and reducing operational dangers and the related prices to satisfy stringent environmental and health and safety goals. Finally, there is continuous monitoring to ensure a reliable sealless pump efficiency which incorporates leak detection instrumentation and safety towards dry pump working (power control monitor).
With no seals to leak, no seal buffer techniques to support and preserve and no supporting techniques, the latest magnetic drive sealless pump know-how provides significant security, value and operational advantages. Lower end-user installation prices and simplified upkeep requirements, make it an effective whole-life proposition in comparability with typical mechanically sealed pumps.

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