Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps that includes new applied sciences, particularly 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 safety standards via full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing utility which poses specific challenges to process operators, including the dangers related to the handling of a deadly, extremely corrosive fluid which poses a possible hazard to plant gear, the people who work on site and the broader environment ought to leaks occur.
The process
HF Alkylation combines olefins (primarily a mixture 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 component that offsets the high vapour strain of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline supplies. The continual tightening of clean fuels’ legislation has elevated the demand for alkylate, which can additionally be answerable for the anti-knocking property of unleaded petrol/gasoline in fashionable autos.
Potential risks
The HF alkylation course of poses a selection of serious environmental and well being and security risks if poorly managed, with the potential for acid runaway, accelerated gear corrosion and associated HF release. Underground by its nature seeks out and attacks imperfections in forged metal parts that will ultimately scale back the lifetime of pumps, valves and different tools and worse still, end in product leakage. Failure-prone mechanical seals can leak harmful course of fluids. The aggressive and damaging nature of HF acid places great importance on the selection of fabric of cast parts, notably in phrases of the pump casing and impeller.
Designed for resistance in opposition to highly corrosive fluids such as HF acids, magnetic drive sealless pumps supply complete containment with built-in reliability. Magnetic drive sealless pumps that includes new technologies have been particularly designed to be used in hydrofluoric acid alkylation models and have been 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 were developed in response to the challenges of dealing with HF acid. – Image: HMD Kontro
HMD Kontro HF pump
The result of close collaboration between UOP Honeywell, the main licensor of HF alkylation know-how and HMD Kontro, and using an progressive improvement course of, the HMD Kontro HF pump contains a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been tested using new methods of Non-Destructive Examination (NDE).
Strange
Built into the design of these next era pumps are options which meet operator-specific needs for the HF alkylation process. They embrace a pump casing in Alloy C22 supplies, which has been proven to supply the mandatory resistance to corrosion and likewise 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 decreasing operational dangers and the associated costs to meet stringent environmental and well being and safety targets. Finally, there’s steady monitoring to ensure a dependable sealless pump efficiency which includes leak detection instrumentation and protection against dry pump running (power management monitor).
With no seals to leak, no seal buffer techniques to support and keep and no supporting systems, the most recent magnetic drive sealless pump expertise provides important security, value and operational advantages. Lower end-user set up costs and simplified maintenance necessities, make it an effective whole-life proposition compared to standard mechanically sealed pumps.
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