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 handling HF acid.
The new HMD Kontro sealless pump ensures conformity with all environmental health and safety standards by way of full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses explicit challenges to course of operators, including the risks related to the handling of a deadly, highly corrosive fluid which poses a possible hazard to plant tools, the people who work on website and the wider environment should leaks occur.
The course of
HF Alkylation combines olefins (primarily a combination 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 safety component that offsets the high vapour pressure of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline supplies. The continual tightening of fresh fuels’ laws has increased the demand for alkylate, which can also be responsible for the anti-knocking property of unleaded petrol/gasoline in modern vehicles.
Potential risks
The HF alkylation course of poses a quantity of serious environmental and well being and security risks if poorly managed, with the potential for acid runaway, accelerated equipment corrosion and related HF launch. HF acid by its nature seeks out and attacks imperfections in solid metal parts that may finally scale back the life of pumps, valves and different tools and worse nonetheless, result in product leakage. Failure-prone mechanical seals can leak dangerous course of fluids. The aggressive and damaging nature of HF acid locations great significance on the choice of fabric of solid elements, significantly in terms of the pump casing and impeller.
Designed for resistance against extremely corrosive fluids such as HF acids, magnetic drive sealless pumps offer whole containment with built-in reliability. Magnetic drive sealless pumps featuring new technologies have been specifically designed for use 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 models and were 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 utilizing an revolutionary 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 tested using new methods of Non-Destructive Examination (NDE).
Specialist design options
Built into the design of these next generation pumps are features which meet operator-specific needs for the HF alkylation process. Guide embody a pump casing in Alloy C22 materials, which has been confirmed to supply the mandatory resistance to corrosion and likewise meets NDE necessities for HF acid. In addition, the pump’s secondary containment system is rated to forty bar (580 psi), eliminating the risk of leakage into the surroundings, and decreasing operational dangers and the related prices to meet stringent environmental and health and security targets. Finally, there may be continuous monitoring to make sure a dependable sealless pump performance which incorporates leak detection instrumentation and protection towards dry pump running (power control monitor).
With no seals to leak, no seal buffer techniques to support and maintain and no supporting methods, the most recent magnetic drive sealless pump expertise provides significant security, cost and operational advantages. Lower end-user installation prices and simplified maintenance requirements, make it an effective whole-life proposition compared to conventional mechanically sealed pumps.

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