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 security standards via complete fluid containment. – Image: HMD Kontro
Hydrofluoric acid alkylation is a chemical/hydrocarbon processing software which poses specific challenges to course of operators, including the dangers related to the handling of a deadly, highly corrosive fluid which poses a potential hazard to plant equipment, the individuals who work on website and the wider environment ought to leaks occur.
The process
HF Alkylation combines olefins (primarily a combination of propylene and butylene) with isobutene within the presence of a hydrofluoric acid catalyst to provide alkylate. A high-octane additive, alkylate is a crucial security component that offsets the high vapour strain of the ethanol mandated in today’s low-sulphur unleaded petrol and gasoline provides. The continual tightening of clean fuels’ laws has increased the demand for alkylate, which can also be answerable for the anti-knocking property of unleaded petrol/gasoline in trendy vehicles.
Potential dangers
The HF alkylation process poses a selection of serious environmental and health and safety risks if poorly managed, with the potential for acid runaway, accelerated tools corrosion and related HF release. HF acid by its nature seeks out and attacks imperfections in solid metallic parts that can ultimately cut back the lifetime of pumps, valves and other equipment 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 material of solid elements, significantly by method of the pump casing and impeller.
Designed for resistance against highly corrosive fluids similar to HF acids, magnetic drive sealless pumps supply total containment with built-in reliability. Magnetic drive sealless pumps that includes 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 technologies have been particularly designed to be used in hydrofluoric acid alkylation items and were 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 innovative growth course of, the HMD Kontro HF pump includes a high integrity pump casing manufactured from Alloy C22 (ASTM A194 Gr. CX2MW) which has been tested utilizing new methods of Non-Destructive Examination (NDE).
Built into the design of those subsequent generation pumps are options which meet operator-specific wants for the HF alkylation course of. They embody a pump casing in Alloy C22 supplies, which has been proven to offer the mandatory resistance to corrosion and in addition meets NDE requirements for HF acid. In addition, the pump’s secondary containment system is rated to 40 bar (580 psi), eliminating the possibility of leakage into the setting, and decreasing operational dangers and the associated prices to satisfy stringent environmental and health and safety objectives. Finally, there’s continuous monitoring to make sure a dependable sealless pump performance which includes leak detection instrumentation and safety towards dry pump working (power management monitor).
With no seals to leak, no seal buffer systems to support and maintain and no supporting systems, the latest magnetic drive sealless pump know-how presents significant security, cost and operational advantages. Lower end-user installation costs and simplified maintenance necessities, make it an efficient whole-life proposition in comparability with standard mechanically sealed pumps.

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