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 dealing with HF acid.
The new HMD Kontro sealless pump ensures conformity with all environmental well being and safety requirements through full fluid containment. – Image: HMD Kontro

Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses specific challenges to process operators, together with the risks related to the dealing with of a lethal, extremely corrosive fluid which poses a possible hazard to plant gear, the individuals who work on web site and the broader environment ought to leaks occur.
The process

HF Alkylation combines olefins (primarily a mix 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 high 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 liable for the anti-knocking property of unleaded petrol/gasoline in modern automobiles.
Potential dangers

The HF alkylation process poses a number of severe environmental and health and security 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 attacks imperfections in solid steel components that may in the end reduce the lifetime of pumps, valves and different gear and worse nonetheless, end in product leakage. Failure-prone mechanical seals can leak dangerous course of fluids. The aggressive and damaging nature of HF acid locations nice significance on the choice of material of forged components, notably by means of the pump casing and impeller.
Designed for resistance against highly corrosive fluids corresponding to HF acids, magnetic drive sealless pumps supply complete containment with built-in reliability. Magnetic drive sealless pumps featuring new applied sciences have been particularly designed for use in hydrofluoric acid alkylation items and had been developed in response to the challenges of dealing with HF acid.
Magnetic drive sealless pumps that includes new technologies have been specifically designed for use in hydrofluoric acid alkylation models and had 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 innovative growth process, the HMD Kontro HF pump includes 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).
Specialist design options

Built into the design of these subsequent era pumps are features which meet operator-specific needs for the HF alkylation process. ไดอะแฟรม include a pump casing in Alloy C22 supplies, which has been proven 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 forty bar (580 psi), eliminating the potential of leakage into the environment, and reducing operational risks and the associated costs to satisfy stringent environmental and health and safety goals. Finally, there may be continuous monitoring to make sure a reliable sealless pump performance which includes leak detection instrumentation and safety in opposition to dry pump running (power management monitor).
With no seals to leak, no seal buffer methods to support and keep and no supporting techniques, the newest magnetic drive sealless pump technology offers significant safety, cost and operational advantages. Lower end-user set up prices and simplified maintenance necessities, make it an effective whole-life proposition compared to conventional mechanically sealed pumps.

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