Sealless pump design tackles HF alkylation

Magnetic drive sealless pumps featuring new applied sciences, particularly 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 well being and security requirements through full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses specific challenges to process operators, together with the dangers related to the handling of a deadly, highly corrosive fluid which poses a possible hazard to plant gear, the people who work on site and the wider setting ought to leaks occur.
The process
HF Alkylation combines olefins (primarily a mix of propylene and butylene) with isobutene within the presence of a hydrofluoric acid catalyst to provide alkylate. Privacy -octane additive, alkylate is a important security part that offsets the high vapour pressure of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continuous tightening of fresh fuels’ legislation has increased the demand for alkylate, which can be liable for the anti-knocking property of unleaded petrol/gasoline in trendy automobiles.
Potential risks
The HF alkylation course of poses a selection of critical environmental and well being and security dangers 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 cast metallic elements that can in the end cut back the life of pumps, valves and other tools and worse still, result in product leakage. Failure-prone mechanical seals can leak dangerous course of fluids. The aggressive and damaging nature of HF acid places nice importance on the choice of material of solid elements, particularly in phrases of the pump casing and impeller.
Designed for resistance against highly corrosive fluids corresponding to HF acids, magnetic drive sealless pumps provide complete containment with built-in reliability. Magnetic drive sealless pumps that includes new technologies have been specifically designed to be used in hydrofluoric acid alkylation units 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 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 main licensor of HF alkylation technology and HMD Kontro, and using an revolutionary growth process, the HMD Kontro HF pump contains a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been tested using new methods of Non-Destructive Examination (NDE).
Specialist design features
Built into the design of these next era pumps are features which meet operator-specific wants for the HF alkylation process. They include a pump casing in Alloy C22 supplies, which has been proven to offer the required resistance to corrosion and also 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 related costs to meet stringent environmental and well being and security targets. Finally, there could be continuous monitoring to ensure a reliable sealless pump efficiency which incorporates leak detection instrumentation and safety towards dry pump operating (power management monitor).
With no seals to leak, no seal buffer techniques to support and preserve and no supporting systems, the latest magnetic drive sealless pump technology offers important security, value and operational benefits. Lower end-user installation prices and simplified upkeep requirements, make it an efficient whole-life proposition compared to typical mechanically sealed pumps.
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