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 safety requirements by way of full fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing application which poses specific challenges to course of operators, including the dangers associated with the handling of a deadly, extremely corrosive fluid which poses a possible hazard to plant tools, the individuals who work on web site and the broader setting should leaks occur.
The process
HF Alkylation combines olefins (primarily a mixture of propylene and butylene) with isobutene within the presence of a hydrofluoric acid catalyst to supply alkylate. A high-octane additive, alkylate is a critical safety component that offsets the high vapour pressure of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline supplies. The continuous tightening of clean fuels’ legislation has increased the demand for alkylate, which can be responsible for the anti-knocking property of unleaded petrol/gasoline in trendy autos.
Potential dangers
The HF alkylation process poses numerous severe environmental and health and security dangers if poorly managed, with the potential for acid runaway, accelerated tools corrosion and associated HF launch. HF acid by its nature seeks out and assaults imperfections in solid steel parts that will in the end reduce the lifetime of pumps, valves and other gear and worse still, lead to product leakage. Failure-prone mechanical seals can leak harmful course of fluids. The aggressive and damaging nature of HF acid places nice significance on the choice of fabric of forged elements, particularly when it comes to the pump casing and impeller.
Designed for resistance in opposition to highly corrosive fluids corresponding to HF acids, magnetic drive sealless pumps supply complete containment with built-in reliability. Magnetic drive sealless pumps featuring new technologies have been particularly designed for use in hydrofluoric acid alkylation units and had been developed in response to the challenges of dealing with HF acid.
Magnetic drive sealless pumps featuring new technologies have been specifically designed to be used in hydrofluoric acid alkylation models and had been developed in response to the challenges of dealing with HF acid. – Image: HMD Kontro
HMD Kontro HF pump
The results of close collaboration between UOP Honeywell, the main licensor of HF alkylation know-how and HMD Kontro, and using an innovative development process, the HMD Kontro HF pump includes a excessive integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been examined utilizing new strategies of Non-Destructive Examination (NDE).
Specialist design features
Built into the design of those next technology pumps are options which meet operator-specific needs for the HF alkylation course of. เกจวัดแรงดัน250bar include a pump casing in Alloy C22 materials, which has been proven to offer the required 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 setting, and decreasing operational risks and the related prices to satisfy stringent environmental and well being and security objectives. Finally, there may be steady monitoring to ensure a dependable sealless pump efficiency which includes leak detection instrumentation and safety towards dry pump running (power management monitor).
With no seals to leak, no seal buffer systems to support and keep and no supporting techniques, the latest magnetic drive sealless pump expertise offers significant security, cost and operational advantages. Lower end-user set up prices and simplified maintenance necessities, make it an effective whole-life proposition compared to typical mechanically sealed pumps.
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