Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps featuring new technologies, 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 standards through full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses explicit challenges to process operators, including the risks related to the handling of a lethal, highly corrosive fluid which poses a possible hazard to plant tools, the individuals who work on site and the broader setting should 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 provide alkylate. เกจวัดแรงดันน้ำ10บาร์ -octane additive, alkylate is a critical safety element that offsets the excessive vapour stress of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline supplies. The continual tightening of unpolluted fuels’ laws has increased 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 numerous severe environmental and well being and safety risks if poorly managed, with the potential for acid runaway, accelerated tools corrosion and related HF launch. HF acid by its nature seeks out and attacks imperfections in solid metal parts that can ultimately scale back the lifetime of pumps, valves and different gear and worse nonetheless, lead to product leakage. Failure-prone mechanical seals can leak dangerous process fluids. The aggressive and damaging nature of HF acid places nice importance on the choice of material of solid parts, notably in terms of the pump casing and impeller.
Designed for resistance against highly corrosive fluids corresponding to HF acids, magnetic drive sealless pumps provide whole containment with built-in reliability. Magnetic drive sealless pumps that includes new technologies have been specifically 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 that includes new applied sciences have been specifically designed to be used in hydrofluoric acid alkylation units 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 using an revolutionary improvement process, the HMD Kontro HF pump contains a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been examined utilizing new methods 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. They embody a pump casing in Alloy C22 materials, which has been confirmed to supply the necessary resistance to corrosion and also meets NDE requirements for HF acid. In addition, the pump’s secondary containment system is rated to 40 bar (580 psi), eliminating the risk of leakage into the setting, and decreasing operational dangers and the related costs to meet stringent environmental and well being and security objectives. Finally, there’s steady monitoring to ensure a dependable sealless pump performance which incorporates leak detection instrumentation and safety in opposition to dry pump working (power management monitor).
With no seals to leak, no seal buffer systems to help and maintain and no supporting techniques, the newest magnetic drive sealless pump know-how offers significant safety, value and operational benefits. Lower end-user set up costs and simplified maintenance necessities, make it an efficient whole-life proposition in comparison with standard mechanically sealed pumps.
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