Before Commissioning
Assess oils, loose residues and surface oxides associated with fabrication, installation and storage. Plan required flushing, degreasing and chemical stages according to manufacturer requirements and the approved procedure.
Project-specific field services
HRSG Chemical Cleaning
Pre-commissioning and maintenance chemical cleaning of heat recovery steam generators at power plants.
Discuss Your Project
Our Technical Approach
Manufacturing and construction residues before commissioning and deposits during operation require different cleaning approaches. We assess cleaning boundaries, system metallurgy and customer, EPC or OEM procedures to plan project-specific field work.
- Combined cycle plants
- Heat recovery steam generators
- Pre-commissioning
- Maintenance cleaning
Service Scope
- Identify cleaning circuits and temporary connections using P&IDs.
- Carry out alkaline washing, chemical circulation and flushing where required by the procedure.
- Track application parameters through field checks and chemical analysis.
- Perform rinsing, neutralization and passivation according to the approved procedure.
International Mobilization for HRSG Projects
For HRSG chemical cleaning projects, we mobilize our own circulation pumps and application equipment to sites in Türkiye and internationally. Equipment shipment and site setup are planned around the project schedule and local logistics requirements.
Our Equipment and Mobilization ApproachTwo Different Cleaning Requirements
During Maintenance
Assess deposits, operating history and available inspections together. Cleaning requirements and methods depend on system condition rather than a fixed operating-time interval.
How Is the Need for Cleaning Assessed?
Consider available site inspections, operating and water-chemistry records, previous cleaning information and any tube samples or deposit analyses. Deposit loading and composition provide technical input to cleaning decisions, particularly for high-pressure evaporators. Sampling and assessment scope follows facility and manufacturer requirements.
Which Circuits Are Cleaned?
Determine whether economizers, evaporators, drums and connected circuits are included by reviewing P&IDs and manufacturer procedures. Assess HP, IP and LP materials and connections separately. Other circuits, such as superheaters and reheaters, are addressed only within the defined project scope and procedure.
Our HRSG Cleaning Process
- 01
Technical preparation
Review P&IDs, metallurgy, available deposit information and manufacturer procedures.
- 02
Circuit and equipment planning
Define cleaning boundaries, temporary connections and circulation arrangements for the project.
- 03
Controlled execution
Perform flushing and required chemical stages in the approved sequence.
- 04
Analytical monitoring
Monitor procedure-specific application parameters and chemical analyses.
- 05
Rinsing and final checks
Complete final operations, including required neutralization and passivation, against project acceptance criteria.
From Our Field Archive
Chemical type, concentration, temperature, duration and acceptance criteria are defined for each project according to system conditions and the approved procedure.
Related Field Experience
Our project records include HRSG cleaning in units 5 and 6 at Aksa Energy Antalya and work at Mersin Soda, Nuh Energy and BİS Energy.
Explore Our Project RecordsOther Chemical Cleaning Services
Flushing & Chemical Pre-cleaning
Pre-commissioning water flushing and chemical pre-cleaning tailored to piping and process-system requirements.
Explore Service
Steam Boiler Chemical Cleaning
Cleaning scale, mineral deposits and oxide layers on the water side of steam and waste heat boilers.
Explore Service
Cooling Tower Chemical Cleaning
Scale and deposit removal in cooling towers and associated circuits, selected for equipment construction.
Explore Service
Heat Exchanger & Condenser Chemical Cleaning
Deposit removal in plate and tubular heat exchangers, condensers and chiller equipment.
Explore Service
Tank & Pipeline Chemical Cleaning
Pre-cleaning, flushing and chemical cleaning of process piping, spool groups and tanks.
Explore ServiceLet’s assess your chemical cleaning requirements together.
Tell us about the equipment, deposit type and application requirements. Together, we can identify a suitable solution for on-site cleaning or chemical products used by your own team.