Crude oil treatment
Specialists in crude oil desalters and dehydration
Axsia Howmar is a UK engineering consulting and contracting firm. We design and manufacture crude oil treatment systems: heaters and the electrostatic coalescers used as dehydrators and desalters, designed as one train to the basic sediment and water (BS&W) and salt specification. We also assess existing units for capacity enhancement, upgrades, troubleshooting and spare parts.
- Electrostatic dehydrators and desalters
- Indirect fired crude oil heaters
- Capacity reviews, troubleshooting and spare parts
Hydrogen purification
Experts in hydrogen purification systems
We design and manufacture hydrogen purification packages: pressure swing adsorption (PSA) for reformer and refinery hydrogen, and temperature swing adsorption (TSA) dryers with DeOxo oxygen removal for electrolyser hydrogen. Each package is designed from your process datasheet and delivered through to commissioning and handover.
- PSA packages for reformer and refinery hydrogen
- DeOxo and TSA hydrogen dryers for electrolysers
- Capacity, purity and recovery improvement for existing units
Crude oil treatment: separation, heating, dehydration and desalting.
Engineering from your specification to handover: Engineeering, Procurment and commissioning support.
Hydrogen purification for a lower-carbon energy system and sustainable future
Equipment and packages we design and manufacture
Two families of process equipment, each designed and manufactured by us from a process datasheet: design, procurement, fabrication by approved and audited fabricators under our supervision, delivery and commissioning.
Separation, heating, dehydration, desalting
Crude oil treatment
Heaters and electrostatic coalescers designed as one train to the basic sediment and water (BS&W) and salt specification.
Pressure swing adsorption (PSA)
Hydrogen purification
PSA packages that purify hydrogen from reformer syngas and refinery off-gas.
Electrolyser hydrogen
Hydrogen DeOxo dryer
DeOxo dryer packages: catalytic oxygen removal, then temperature swing adsorption (TSA) drying.
Kerosene treating
Electrostatic coalescer prewash
Removes caustic or water haze from kerosene and similar products, for example in kerosene sweetening units.
Engineering services for operating plant
Process and detailed design
From a process datasheet to a complete design package that an approved fabricator can build from.
Design review for capacity enhancement
An independent review of what limits throughput in an existing unit, and which revamp options remove the limit.
Troubleshooting and performance diagnostics
A symptom index for electrostatic coalescers, their power units and hydrogen PSA units: probable causes and the data that confirms them.
Spare parts and lifecycle support
An open catalogue with no login and no prices: add parts to one enquiry and send it once. Electrode insulators, high-pressure entrance bushings, grid assemblies, transformer bushings and power units are typical requests.
Only have a nameplate photo, a tag number or a drawing reference?
That is enough to start. Send what you have for a desalter, dehydrator, electrostatic coalescer or hydrogen adsorption unit, whoever built it, and we will identify the equipment and the parts it needs. Final compatibility is always confirmed against your equipment data and operating conditions.
How Axsia Howmar delivers
Datasheet to handover. Process design, detailed design, procurement of key components, supervised fabrication, delivery, commissioning and handover as one scope, or any part of it.
Designed and manufactured by us, fabricated by approved workshops. We own the design and specification, subcontract fabrication to approved and audited fabricators, and project-manage and supervise the build.
Codes confirmed per project. Typically ASME VIII Division 1, PD 5500 or EN 13445 for vessels, API 12L and API 560 for heaters, and IEC 60079, ATEX or IECEx for hazardous areas.
Experience in the field. Our team has several decades of experience designing and supplying packages for oilfields and refineries in the Middle East and worldwide.
Latest insights and technical papers
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Designing electrolyte carryover removal for alkaline electrolysers: a rate-based method
Alkaline water electrolysers circulate 20 to 30 wt% potassium hydroxide, and a fine caustic aerosol leaves the gas-lye separator with the hydrogen. Because the aerosol is a liquid, not a vapour, and…
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The 2026 diesel crisis: why every clean barrel counts, and how a DC electrostatic dehazer helps
The 2026 energy shock is a diesel shock. With the Strait of Hormuz closed and Russian product exports halted, the IEA counts 1.6 million barrels a day of diesel and gasoil missing…
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The 2026 jet fuel crisis: why Europe is exposed, and what it means for the refinery
The closure of the Strait of Hormuz in February 2026 took a fifth of the world's seaborne jet fuel off the market and sent the European jet crack from a previous record…
Talk to an engineer about your unit
Tell us the equipment, the duty and what you are seeing. Partial data is normal: send what you have and we will tell you what else matters. We acknowledge every enquiry within 1 working day.