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Magnetic drive sealless pumps featuring new applied sciences, 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 well being and security standards through full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing software which poses particular challenges to process operators, together with the dangers related to the handling of a lethal, extremely corrosive fluid which poses a potential hazard to plant gear, the individuals who work on web site and the broader surroundings ought to leaks happen.
The process
HF Alkylation combines olefins (primarily a combination of propylene and butylene) with isobutene within the presence of a hydrofluoric acid catalyst to provide alkylate. A high-octane additive, alkylate is a crucial security element 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 modern automobiles.
Potential dangers
The HF alkylation process poses a quantity of severe environmental and health and safety risks if poorly managed, with the potential for acid runaway, accelerated gear corrosion and related HF release. HF acid by its nature seeks out and attacks imperfections in cast metallic components that may finally reduce the life of pumps, valves and other gear and worse still, lead to product leakage. Failure-prone mechanical seals can leak dangerous process fluids. The aggressive and damaging nature of HF acid locations great importance on the choice of fabric of cast components, notably in terms of the pump casing and impeller.
Designed for resistance towards extremely corrosive fluids corresponding to HF acids, magnetic drive sealless pumps provide complete containment with built-in reliability. Magnetic drive sealless pumps that includes new technologies have been particularly designed for use in hydrofluoric acid alkylation models and were developed in response to the challenges of dealing with HF acid.
Magnetic drive sealless pumps that includes new technologies have been particularly designed for use in hydrofluoric acid alkylation models 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 main licensor of HF alkylation technology and HMD Kontro, and using an innovative growth course of, the HMD Kontro HF pump features a excessive integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been tested utilizing new methods of Non-Destructive Examination (NDE).
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Built into the design of these subsequent technology pumps are options which meet operator-specific needs for the HF alkylation course of. They embody a pump casing in Alloy C22 supplies, which has been confirmed to supply the required resistance to corrosion and in addition 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 risks and the associated costs to meet stringent environmental and health and security objectives. Finally, there may be continuous monitoring to ensure a reliable sealless pump efficiency which includes leak detection instrumentation and safety against dry pump running (power management monitor).
With no seals to leak, no seal buffer techniques to assist and preserve and no supporting methods, the most recent magnetic drive sealless pump expertise provides significant security, cost and operational benefits. Lower end-user set up costs and simplified maintenance requirements, make it an efficient whole-life proposition compared to conventional mechanically sealed pumps.
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