Power & Energy
Heat exchangers for power plants in the UAE: HEI-standard condensers, coolers and heat recovery equipment for conventional and renewable generation.
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Service
Chemical Cleaning
Chemical cleaning for heat exchangers in the UAE: engineered cleaning that dissolves what water cannot — with chemistry matched to deposit and metallurgy, and full effluent control.
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How It Works
Chemical cleaning circulates an engineered solvent through the equipment, dissolving deposits chemically, then passivates the cleaned metal and neutralises the spent solution.
- 1
Deposit samples are analysed to select solvent, inhibitor, concentration and temperature.
- 2
Temporary circulation loop is rigged with pumps, heaters and monitoring.
- 3
Solvent circulates while iron counts and pH are tracked to determine the cleaning endpoint.
- 4
Rinse, neutralise and passivate to leave a protected metal surface.
Built to
Solve
Engineered against the specific failures that cost operators downtime, contamination or wasted energy.
Asset protection
The wrong acid on the wrong alloy destroys equipment faster than any fouling; cleaning chemistry is an engineering decision, not a generic off-the-shelf procedure applied to every metallurgy the same way.
Process integrity
Deposits water cannot touch — hardened scale, process polymers, oil films — keep exchangers below duty no matter how often they are jetted. Mechanical cleaning alone cannot reach what chemistry dissolves.
Operational efficiency
Chemical cleaning reaches every tube and crevice simultaneously, restoring circuits that mechanical methods cannot fully access — including headers, U-bends and other geometry a lance cannot reach.
Why Dolphin Group for
Chemical Cleaning
Chemistry chosen by engineers
Deposit analysis and metallurgy drive solvent selection — we clean to an endpoint, monitored in real time.
Combined-method capability
Chemical plus hydrojetting in one mobilisation tackles layered deposits other vendors bounce between.
Compliant by default
Effluent handling, neutralisation and disposal documentation are built into every job plan.
Key
Benefits
What sets chemical cleaning from Dolphin Group apart, in specific and measurable terms.
- 1
Reaches inaccessible deposits
Dissolves deposits mechanical cleaning cannot reach — hardened scale, polymers and films alike.
- 2
Base metal protected
Inhibited chemistries with monitored corrosion rates during cleaning, protecting the base metal throughout.
- 3
Full-circuit restoration
Restores full-circuit performance in one operation, reaching headers and bends a lance cannot.
- 4
Corrosion-protected finish
Passivation leaves surfaces protected against flash corrosion after the clean is complete.
- 5
Compliant disposal included
Full effluent neutralisation and compliant disposal handled as part of the scope.
- 6
Cleaned to data
Documented endpoint determination — cleaned to data, not to a fixed schedule.
Technical
Specifications
Design codes, materials and testing scope confirmed for every chemical cleaning order.
Chemistries
Inhibited HCl · citric · EDTA · alkaline degreasers · solvent blends
Methods
Circulation · immersion · foam/fill-and-soak
Monitoring
Fe counts · pH · corrosion coupons · temperature
Scope
Exchangers · boilers · piping circuits · pre-commissioning
Close-out
Passivation · neutralisation · disposal certificates
Where It's
Used
Chemical Cleaning in service, sector by sector, application by application.
Oil & Gas
Heat exchangers for oil and gas in the UAE: thermal equipment engineered for upstream, midstream and refining service, built and serviced in Abu Dhabi.
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Petrochemicals
Heat exchangers for petrochemical plants in the UAE: we build exchangers and reboilers for crackers, polymer plants and aromatics complexes worldwide.
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Water & Desalination
Desalination plant heat exchangers from the UAE: we build high-alloy heat exchange equipment for MSF, MED and RO desalination plants.
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Food & Beverage
Food and beverage heat exchangers in the UAE: hygienic plate heat exchangers and process cooling for dairies, beverage lines and food processors.
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Pulp & Paper
Heat exchangers for pulp and paper mills: black liquor, condensate and process heat recovery equipment.
View SectorFrequently Asked Questions
From laboratory analysis of a deposit sample plus circuit metallurgy — solvent, inhibitor, temperature and duration are engineered per job.
Inhibited chemistries hold base-metal corrosion to negligible rates, verified with corrosion coupons during the clean.
Yes — temporary circulation rigs clean installed exchangers, boilers and circuits without disassembly.
By data: dissolved iron and pH stabilisation define the endpoint, followed by inspection.
Full neutralisation and disposal through approved routes, with certificates in the close-out dossier.
Yes — degreasing, pickling and passivation of new circuits ahead of first start-up.
Yes, with chloride-controlled chemistries for stainless and dedicated protocols per alloy.
Send circuit details and, ideally, a deposit sample through our RFQ form; we return an engineered method statement.
Talk to an Engineer About Chemical Cleaning
Send your duty requirements or existing datasheet, and our engineers will confirm the right configuration.