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 health and safety requirements through full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing software which poses specific challenges to course of operators, together with the dangers related to the handling of a lethal, extremely corrosive fluid which poses a potential hazard to plant tools, the people who work on site and the wider surroundings ought to 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 supply alkylate. A high-octane additive, alkylate is a crucial safety part that offsets the excessive 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 be responsible for the anti-knocking property of unleaded petrol/gasoline in modern autos.
Potential dangers
The HF alkylation course of poses a selection of critical environmental and health and security dangers if poorly managed, with the potential for acid runaway, accelerated gear corrosion and related HF launch. HF acid by its nature seeks out and attacks imperfections in forged metallic parts that can ultimately scale back the lifetime of pumps, valves and other gear and worse nonetheless, result in product leakage. Failure-prone mechanical seals can leak dangerous process fluids. The aggressive and damaging nature of HF acid places nice significance on the selection of material of forged elements, particularly by method of the pump casing and impeller.
Designed for resistance towards highly corrosive fluids similar to HF acids, magnetic drive sealless pumps provide complete containment with built-in reliability. Magnetic drive sealless pumps that includes new technologies have been specifically designed for use in hydrofluoric acid alkylation models and have been developed in response to the challenges of handling HF acid.
Magnetic drive sealless pumps that includes new applied sciences have been particularly designed for use in hydrofluoric acid alkylation units and were 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 revolutionary improvement course of, the HMD Kontro HF pump features a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been examined utilizing new strategies of Non-Destructive Examination (NDE).
Specialist design features
Built into the design of those next era pumps are options which meet operator-specific needs for the HF alkylation course of. Cheap embrace a pump casing in Alloy C22 materials, which has been confirmed 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 chance of leakage into the setting, and decreasing operational risks and the associated prices to meet stringent environmental and well being and security targets. Finally, there is continuous monitoring to make sure a dependable sealless pump efficiency which includes leak detection instrumentation and safety towards dry pump working (power control monitor).
With no seals to leak, no seal buffer systems to assist and maintain and no supporting systems, the newest magnetic drive sealless pump expertise offers vital security, cost and operational advantages. Lower end-user set up costs and simplified maintenance requirements, make it an efficient whole-life proposition in comparability with conventional mechanically sealed pumps.
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