Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps that includes new technologies, specifically designed to be used 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 health and security requirements by way of complete fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses particular challenges to process operators, together with the dangers associated with the handling of a lethal, extremely corrosive fluid which poses a possible hazard to plant tools, the individuals who work on web site and the broader surroundings 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 important security component that offsets the excessive vapour strain of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continuous tightening of fresh fuels’ legislation has elevated the demand for alkylate, which can additionally be answerable for the anti-knocking property of unleaded petrol/gasoline in trendy autos.
Potential dangers
The HF alkylation course of poses numerous serious environmental and well being and safety risks if poorly managed, with the potential for acid runaway, accelerated equipment corrosion and associated HF release. HF acid by its nature seeks out and assaults imperfections in solid metal parts that can ultimately reduce the lifetime of pumps, valves and different tools and worse still, result in product leakage. Failure-prone mechanical seals can leak harmful process fluids. The aggressive and damaging nature of HF acid locations great significance on the choice of fabric of forged elements, particularly by way of the pump casing and impeller.
Designed for resistance against highly corrosive fluids such as HF acids, magnetic drive sealless pumps provide whole containment with built-in reliability. Magnetic drive sealless pumps featuring new applied sciences have been particularly designed for use 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 particularly 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 shut collaboration between UOP Honeywell, the main licensor of HF alkylation expertise 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 utilizing เครื่องมือที่ใช้วัดความดันเลือด of Non-Destructive Examination (NDE).
Specialist design features
Built into the design of these next generation pumps are options which meet operator-specific needs for the HF alkylation process. They embody a pump casing in Alloy C22 materials, which has been confirmed to offer the mandatory resistance to corrosion and likewise meets NDE requirements 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 reducing operational risks and the related prices to fulfill stringent environmental and well being and security targets. Finally, there’s continuous monitoring to ensure a reliable sealless pump performance which incorporates leak detection instrumentation and protection in opposition to dry pump running (power control monitor).
With no seals to leak, no seal buffer methods to help and maintain and no supporting systems, the newest magnetic drive sealless pump expertise presents significant security, cost and operational benefits. Lower end-user set up prices and simplified maintenance requirements, make it an efficient whole-life proposition compared to standard mechanically sealed pumps.
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