Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps that includes new applied sciences, specifically 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 well being and security standards through complete fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing utility which poses specific challenges to process operators, including the dangers associated with the dealing with of a deadly, extremely corrosive fluid which poses a potential hazard to plant tools, the people who work on site and the broader setting should leaks happen.
The course of
HF Alkylation combines olefins (primarily a mix of propylene and butylene) with isobutene in the presence of a hydrofluoric acid catalyst to provide alkylate. A high-octane additive, alkylate is a important safety component that offsets the excessive vapour strain of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continuous tightening of clean fuels’ laws has elevated the demand for alkylate, which is also liable for the anti-knocking property of unleaded petrol/gasoline in modern vehicles.
Potential risks
The HF alkylation course of poses numerous severe environmental and well being and safety risks if poorly managed, with the potential for acid runaway, accelerated equipment corrosion and associated HF release. HF acid by its nature seeks out and assaults imperfections in cast metal components that can ultimately scale back the lifetime of pumps, valves and different tools 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 nice significance on the choice of material of cast elements, particularly 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 supply whole containment with built-in reliability. Magnetic drive sealless pumps that includes new applied sciences have been particularly designed for use in hydrofluoric acid alkylation models and have been developed in response to the challenges of dealing with HF acid.
Cinch featuring new technologies have been specifically designed to be used in hydrofluoric acid alkylation items and were developed in response to the challenges of dealing with HF acid. – Image: HMD Kontro
HMD Kontro HF pump
The results of shut collaboration between UOP Honeywell, the main licensor of HF alkylation know-how and HMD Kontro, and utilizing an revolutionary improvement process, the HMD Kontro HF pump includes 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 options
Built into the design of these subsequent technology pumps are features which meet operator-specific wants for the HF alkylation course of. They embody a pump casing in Alloy C22 materials, which has been confirmed to supply the necessary resistance to corrosion and likewise meets NDE requirements for HF acid. In addition, the pump’s secondary containment system is rated to forty bar (580 psi), eliminating the potential for leakage into the setting, and lowering operational risks and the associated prices to fulfill stringent environmental and well being and safety targets. Finally, there’s continuous monitoring to make sure a dependable sealless pump performance which incorporates leak detection instrumentation and protection against dry pump running (power management monitor).
With no seals to leak, no seal buffer systems to assist and maintain and no supporting systems, the latest magnetic drive sealless pump know-how offers significant security, price and operational benefits. Lower end-user set up costs and simplified maintenance requirements, make it an effective whole-life proposition compared to typical mechanically sealed pumps.
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