Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps that includes new applied sciences, specifically designed to be used 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 requirements through full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses particular challenges to course of operators, together with the risks related to the dealing with of a lethal, highly corrosive fluid which poses a potential hazard to plant equipment, the individuals who work on web site and the broader environment should leaks happen.
The process
HF Alkylation combines olefins (primarily a mix of propylene and butylene) with isobutene in the presence of a hydrofluoric acid catalyst to produce alkylate. A high-octane additive, alkylate is a crucial security part that offsets the excessive vapour strain of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline supplies. The continuous tightening of fresh fuels’ legislation has elevated the demand for alkylate, which is also liable for the anti-knocking property of unleaded petrol/gasoline in modern autos.
Potential dangers
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. HF acid by its nature seeks out and attacks imperfections in forged steel parts that may finally scale back the life 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 locations great significance on the selection of fabric of cast elements, particularly by method of the pump casing and impeller.
Designed for resistance in opposition to extremely corrosive fluids similar to HF acids, magnetic drive sealless pumps provide total containment with built-in reliability. Magnetic drive sealless pumps featuring new applied sciences have been particularly designed to be used in hydrofluoric acid alkylation models 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 course of, the HMD Kontro HF pump features a excessive integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been examined using new strategies of Non-Destructive Examination (NDE).
Specialist design features
Built into the design of these subsequent generation pumps are options which meet operator-specific wants for the HF alkylation course of. เกจวัดแรงดันถังแก๊ส embody a pump casing in Alloy C22 supplies, which has been proven to offer the required resistance to corrosion and likewise meets NDE necessities for HF acid. In addition, the pump’s secondary containment system is rated to 40 bar (580 psi), eliminating the potential of leakage into the setting, and lowering operational risks and the associated prices to satisfy stringent environmental and well being and security objectives. Finally, there is continuous monitoring to ensure a reliable sealless pump performance which includes leak detection instrumentation and protection in opposition to dry pump operating (power management monitor).
With no seals to leak, no seal buffer techniques to assist and keep and no supporting systems, the newest magnetic drive sealless pump technology provides significant safety, value and operational advantages. Lower end-user set up prices and simplified maintenance necessities, make it an efficient whole-life proposition compared to conventional mechanically sealed pumps.
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