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 requirements via complete fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing software which poses explicit challenges to process operators, including the risks 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 environment ought to leaks happen.
The course of
HF Alkylation combines olefins (primarily a mix of propylene and butylene) with isobutene within the presence of a hydrofluoric acid catalyst to produce alkylate. A high-octane additive, alkylate is a crucial safety part that offsets the high vapour strain of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continual tightening of fresh 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 process poses a number of serious environmental and health and security dangers if poorly managed, with the potential for acid runaway, accelerated tools corrosion and associated HF release. HF acid by its nature seeks out and attacks imperfections in cast steel components that will ultimately cut back the lifetime of pumps, valves and different gear and worse nonetheless, end in product leakage. Failure-prone mechanical seals can leak harmful course of fluids. The aggressive and damaging nature of HF acid places nice importance on the selection of fabric of solid components, particularly by way of the pump casing and impeller.
Designed for resistance against extremely corrosive fluids similar to HF acids, magnetic drive sealless pumps supply whole containment with built-in reliability. Magnetic drive sealless pumps that includes new applied sciences have been specifically designed to be used in hydrofluoric acid alkylation items 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 items and have been 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 leading licensor of HF alkylation technology and HMD Kontro, and using an progressive improvement process, the HMD Kontro HF pump includes a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been examined using new strategies of Non-Destructive Examination (NDE).
Treasure
Built into the design of these subsequent era pumps are options which meet operator-specific wants for the HF alkylation process. They include a pump casing in Alloy C22 materials, which has been confirmed to offer the mandatory resistance to corrosion and also 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 surroundings, and reducing operational risks and the related prices to fulfill stringent environmental and health and safety objectives. Finally, there is steady monitoring to ensure a dependable sealless pump efficiency which incorporates leak detection instrumentation and safety in opposition to dry pump working (power management monitor).
With no seals to leak, no seal buffer methods to support and maintain and no supporting systems, the most recent magnetic drive sealless pump know-how presents important security, value and operational advantages. Lower end-user installation prices and simplified upkeep requirements, make it an efficient whole-life proposition in comparison with standard mechanically sealed pumps.
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