Sealless pump design tackles HF alkylation

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 application which poses explicit challenges to process operators, together with the risks related to the handling of a lethal, extremely corrosive fluid which poses a potential hazard to plant equipment, the individuals who work on web site and the wider environment should leaks happen.
The course of

HF Alkylation combines olefins (primarily a mixture of propylene and butylene) with isobutene in the presence of a hydrofluoric acid catalyst to produce alkylate. A high-octane additive, alkylate is a important safety element that offsets the high vapour pressure of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continual tightening of fresh fuels’ legislation has elevated the demand for alkylate, which is also answerable for the anti-knocking property of unleaded petrol/gasoline in trendy automobiles.
Potential risks

The HF alkylation process poses a variety of critical environmental and well being and security dangers if poorly managed, with the potential for acid runaway, accelerated equipment corrosion and related HF launch. HF acid by its nature seeks out and assaults imperfections in cast steel parts that can finally reduce the lifetime of pumps, valves and different gear and worse nonetheless, end in product leakage. Failure-prone mechanical seals can leak dangerous process fluids. The aggressive and damaging nature of HF acid locations nice significance on the selection of material of cast components, notably in phrases of the pump casing and impeller.
Designed for resistance in opposition to highly corrosive fluids corresponding to HF acids, magnetic drive sealless pumps supply whole containment with built-in reliability. Magnetic drive sealless pumps featuring new technologies have been particularly designed for use in hydrofluoric acid alkylation items and were developed in response to the challenges of dealing with HF acid.
Magnetic drive sealless pumps featuring new applied sciences have been specifically 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 result of shut collaboration between UOP Honeywell, the main licensor of HF alkylation know-how and HMD Kontro, and utilizing an innovative improvement process, the HMD Kontro HF pump includes 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).
pressure gauge octa

Built into the design of these next era pumps are options which meet operator-specific needs for the HF alkylation process. They embody a pump casing in Alloy C22 supplies, which has been proven to supply the mandatory 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 chance of leakage into the surroundings, and reducing operational dangers and the related costs to satisfy stringent environmental and well being and security goals. Finally, there might be continuous monitoring to ensure a reliable sealless pump efficiency which incorporates leak detection instrumentation and protection against dry pump running (power management monitor).
With no seals to leak, no seal buffer systems to support and preserve and no supporting systems, the latest magnetic drive sealless pump know-how presents important security, price and operational advantages. Lower end-user set up costs and simplified upkeep requirements, make it an effective whole-life proposition compared to standard mechanically sealed pumps.

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