Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps that includes new technologies, specifically designed to be used 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 requirements through full fluid containment. – Image: HMD Kontro

Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses explicit challenges to process operators, together with the risks related to the dealing with of a deadly, highly corrosive fluid which poses a potential hazard to plant gear, the individuals who work on site and the broader setting should leaks happen.
The course of

HF Alkylation combines olefins (primarily a combination of propylene and butylene) with isobutene in the presence of a hydrofluoric acid catalyst to produce alkylate. A high-octane additive, alkylate is a critical security component that offsets the high vapour pressure of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline supplies. The continual tightening of unpolluted fuels’ laws has elevated the demand for alkylate, which can additionally be answerable for the anti-knocking property of unleaded petrol/gasoline in fashionable autos.
Potential dangers

The HF alkylation course of poses numerous critical environmental and well being and safety risks if poorly managed, with the potential for acid runaway, accelerated tools corrosion and related HF release. HF acid by its nature seeks out and assaults imperfections in solid metal parts that can ultimately scale back the lifetime of pumps, valves and different gear and worse still, result in product leakage. Failure-prone mechanical seals can leak harmful process fluids. The aggressive and damaging nature of HF acid locations great importance on the selection of material of cast elements, notably when it comes to the pump casing and impeller.
Designed for resistance towards highly corrosive fluids similar to HF acids, magnetic drive sealless pumps offer complete containment with built-in reliability. pressure gauge octa featuring new technologies have been particularly designed for use in hydrofluoric acid alkylation items and were developed in response to the challenges of handling HF acid.
Magnetic drive sealless pumps featuring new technologies have been specifically 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 results of close collaboration between UOP Honeywell, the main licensor of HF alkylation know-how and HMD Kontro, and utilizing an innovative development process, the HMD Kontro HF pump contains a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been examined utilizing new methods of Non-Destructive Examination (NDE).
diaphragm seal

Built into the design of these next generation pumps are features which meet operator-specific wants for the HF alkylation course of. They embody 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 risk of leakage into the surroundings, and reducing operational risks and the related prices to fulfill stringent environmental and health and security objectives. Finally, there’s steady monitoring to make sure a dependable sealless pump performance which incorporates leak detection instrumentation and safety against dry pump running (power management monitor).
With no seals to leak, no seal buffer techniques to support and preserve and no supporting systems, the most recent magnetic drive sealless pump expertise offers vital safety, value and operational benefits. Lower end-user set up prices and simplified maintenance requirements, make it an effective whole-life proposition compared to typical mechanically sealed pumps.
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