Hydrocarbon-Free Tank Cleaning

One of the important applications of RXSOL ECO-SOLVE is preparation of tanks where subsequent cargo requirements demand a high level of cleanliness and minimal hydrocarbon carryover.

The product can form part of a planned tank-cleaning sequence involving pre-cleaning, chemical washing, rinsing and final inspection. The exact cleaning procedure should be selected according to the previous cargo, tank coating, contamination level and next-cargo requirements.

Cleaning Performance

RXSOL ECO-SOLVE is intended for difficult contamination where heavy mineral hydrocarbons have adhered to tank surfaces and ordinary washing is insufficient.

Its cleaning action helps loosen and remove:

• Mineral oil residues

• Heavy hydrocarbon films

• Oily deposits

• Grease

• Persistent tank contamination

• Hydrocarbon-based cargo residues

Application Method

The product may be applied using suitable tank-cleaning machines, spray equipment, circulation systems, brushing or manual application, depending on the cleaning operation and tank configuration.

General Procedure

1. Remove loose cargo residues where practical.

2. Pre-rinse the tank with suitable water.

3. Prepare the cleaning solution according to contamination level and operational requirements.

4. Apply through the appropriate tank-cleaning equipment.

5. Allow adequate chemical contact time.

6. Agitate or mechanically wash the contaminated surfaces where necessary.

7. Drain the cleaning solution.

8. Rinse thoroughly with clean water.

9. Inspect the tank and repeat the cleaning process if required.

10. Conduct wall-wash or other cleanliness testing where specified by the charterer, cargo requirement or vessel's tank-cleaning procedure.

Note: Dilution ratio, temperature and contact time should be selected according to the specific cargo residue and tank-cleaning requirement. Always refer to the latest RXSOL Technical Data Sheet before application.

Cleans, degreases and disperse heavy grease and oil build up on surfaces and hard to reach areas. Great for engines overhauling, heavy machinery, industrial equipment maintenance and mechanical parts cleaning.

Depends on usage this product  is  designed  into two types ::: 

• RXSOL-20-2019-025 Concentrate    Heavy duty industrial cleaning job - not suitable for painted or coated surfaces.
• RXSOL-20-2019-025 Tech                Medium duty industrial cleaning job - suitable for all surfaces.

Suitable for fast and effective cleaning jobs on huge areas with very minimal scrubbing activity and instant residue removal.

Widely applicable at airports and hangars for its non-volatile, non-corrosive and bio-degradable.

Easy and safe to use for electrical and electronic small sensitive components with hard to reach area. Solutions are non-hazardous and non-abrasive

Machine maintenance and overhauling, tools restoration.

Yes. I found the official/public technical data sheet information for Careclean Eco-Solve. There are two public versions, and the later revision gives a dosage range of 0.5–2% for recirculation, while an earlier PDS gives 1–3% for DPP→CPP cleaning and 0.3–1% for hydrocarbon-free cleaning after mineral oil. 

For an RXSOL product page, I recommend using the technical specifications below as a target/comparable specification only, unless your own RXSOL QC/COA confirms these values.

RXSOL ECO-SOLVE

Heavy-Duty Hydrocarbon & Cargo Tank Cleaner

Technical Specifications

*Actual RXSOL values must be confirmed by the applicable RXSOL Technical Data Sheet, batch specification and approval documentation.

Cleaning Performance

RXSOL ECO-SOLVE is designed for difficult mineral-hydrocarbon contamination, including residues associated with:

• Crude and mineral oils

• Coal tar

• Benzene-containing residues

• Lubricating oils

• Petroleum distillates

• Pyrolysis gas oil

• Bitumen

• Heavy hydrocarbon deposits

Recommended Tank Cleaning Parameters

For demanding cargo-tank cleaning, a typical procedure can involve:

Prewash:
Prewash the tank with seawater at approximately 60°C.

Chemical concentration:

• DPP → CPP: 1–3%

• Hydrocarbon-free cleaning after mineral oil: 0.3–1%

Cleaning temperature:
Approximately 60°C

Circulation time:
Approximately 2–4 hours, depending on contamination and tank condition.

Final step:
Flush thoroughly with suitable water and drain the tank.

The public PDS confirms these application ranges and parameters for the source product. 

Important Technical Characteristics

Neutral pH

The referenced product has a reported pH of approximately 7 at 5% dilution in fresh water, making it substantially different from strongly acidic or strongly alkaline tank cleaners. 

High Flash Point

The reported flash point is above 62°C, which is an important characteristic for marine and industrial cleaning operations. 

Emulsifying Action

The product uses an emulsifying cleaning mechanism to assist in loosening and removing heavy hydrocarbon residues and facilitate subsequent flushing.

Heavy-Duty Application

The product is intended for heavily contaminated systems, including cargo tanks and certain industrial equipment. Marine Care also identifies Eco-Solve for rapid cleaning of challenging mineral-oil cargoes. 

Technical Data Summary

RXSOL ECO-SOLVE

Physical State: Liquid
Density: ~1.00 kg/L
pH: ~7.0 @ 5% dilution
Flash Point: >62°C
Cleaning Type: Emulsifying heavy-duty cleaner
Primary Use: Mineral hydrocarbon and cargo-tank cleaning
Typical Recirculation: 0.5–2%
DPP → CPP: 1–3%
HC-Free after Mineral Oil: 0.3–1%
Typical Temperature: ~60°C
Typical Circulation: 2–4 hours

Quality Control

Each batch of RXSOL ECO-SOLVE should be released against the approved RXSOL product specification and applicable Certificate of Analysis (COA). Density, pH, appearance and other critical parameters should be verified by the manufacturer's quality-control department before dispatch.

Typical Applications

RXSOL ECO-SOLVE can be used for cleaning:

• Cargo tanks

• Hydrocarbon cargo tanks

• Fuel-oil contaminated surfaces

• Mineral-oil residue

• Heavy oily deposits

• Grease and hydrocarbon contamination

• Tank bottoms and lower tank areas

• Tank structures and associated equipment

• Marine machinery areas

• Industrial hydrocarbon-contaminated surfaces