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 security standards through full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing utility which poses explicit challenges to process operators, together with the dangers associated with the dealing with of a deadly, extremely corrosive fluid which poses a potential hazard to plant tools, the people who work on website and the broader environment should leaks happen.
The process
HF Alkylation combines olefins (primarily a combination of propylene and butylene) with isobutene in the presence of a hydrofluoric acid catalyst to provide alkylate. A high-octane additive, alkylate is a crucial safety 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 also be answerable for the anti-knocking property of unleaded petrol/gasoline in trendy autos.
Potential risks
The HF alkylation course of poses numerous severe environmental and well being and safety risks if poorly managed, with the potential for acid runaway, accelerated gear corrosion and associated HF launch. HF acid by its nature seeks out and attacks imperfections in solid metal parts that may finally reduce the lifetime of pumps, valves and different gear and worse still, result in product leakage. Failure-prone mechanical seals can leak dangerous process fluids. The aggressive and damaging nature of HF acid places great significance on the choice of material of cast elements, significantly in terms of the pump casing and impeller.
Designed for เกจวัดแรงดันราคา against extremely corrosive fluids corresponding to HF acids, magnetic drive sealless pumps provide whole containment with built-in reliability. Magnetic drive sealless pumps that includes new applied sciences have been particularly designed to be used in hydrofluoric acid alkylation items and had been developed in response to the challenges of handling HF acid.
Magnetic drive sealless pumps featuring new applied sciences have been specifically designed to be used in hydrofluoric acid alkylation models and were developed in response to the challenges of handling HF acid. – Image: HMD Kontro
HMD Kontro HF pump
The results of shut collaboration between UOP Honeywell, the main licensor of HF alkylation expertise and HMD Kontro, and using an progressive growth course of, the HMD Kontro HF pump features 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 generation pumps are options which meet operator-specific wants for the HF alkylation course of. They include a pump casing in Alloy C22 materials, which has been proven to offer the mandatory resistance to corrosion and in addition meets NDE necessities for HF acid. In addition, the pump’s secondary containment system is rated to forty bar (580 psi), eliminating the potential for leakage into the setting, and reducing operational risks and the associated prices to satisfy stringent environmental and health and security objectives. Finally, there’s steady monitoring to ensure a reliable sealless pump performance which incorporates leak detection instrumentation and safety towards dry pump operating (power control monitor).
With no seals to leak, no seal buffer methods to support and maintain and no supporting techniques, the newest magnetic drive sealless pump know-how provides significant safety, cost and operational benefits. Lower end-user set up costs and simplified maintenance requirements, make it an efficient whole-life proposition compared to conventional mechanically sealed pumps.
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