CHEMICAL
CLEANING
We offer
a broad range of chemical cleaning services for virtually any type
of vessel and equipment to be cleaned. Plus, our pumps and auxiliary
equipment are unsurpassed for power and reliability.
Each
job is tailored to the application.
Typically,
a pre-operational chemical cleaning job involves the following operations:
- Removal
of rust preventive compounds, greases, dirt, sand, cutting, oils,
etc.
- Removal
of millscale, rust and other corrosion products.
- Neutralisation
and passivation of the freshly cleaned metal surfaces.
Chemtreat's
key to providing quality chemical cleaning rests in the engineered
selection process. We have the largest variety of solvent systems,
including chelants, organic solvents, inhibitors, alkaline cleaners,
organic acids emulsions, mineral acids and detergents from which to
develop cost-effective chemical cleaning processes. For our cleaning
chemistries, we pay strict attention to environmental concerns, which
is why we have developed several biodegradable formulations that have
no known carcinogens, low personnel exposure risk and minimal impact
on sewer and waste water treatment systems.
Chemical
filling, cascading, on-stream cleaning, foam, vapor phase and recycled
foam are among our chemical cleaning techniques - techniques which
can eliminate a range of equipment problems and degass organic compounds.
Most of the process used by Chemtreat are proven industry standards
for effectiveness and safety.
Approach
- Choosing
the right chemistries depending on metallurgy, scales preservation
schedules.
- Choosing
the right equipments like: pumps, temporary piping , fitting , etc.
depending on circuit flow, flow restriction, pressure drops, velocities
and other parameters.
- Choosing
sophisticated Laboratory monitoring facilities for right control
by monitoring parameters during cleaning for proven results.
Equipments
available for Precommissioning Chemical Cleaning:
- Skid
mounted pressurised hot water generator of 800,000 kcal capacity
with output temperature upto 140°C.
- Heat
exchanger, steam coil equipped circulation tanks.
- Motor
pump skids upto 400 cubic meter per hour discharge and 90 meter
head.
- Temporary
piping upto 8" dia approximately 3000 mtrs.
- Valves,
spool prpes, flanges & other fittings hose pipe, steam hose
pipe, etc.
- Mobile
Test Laboratory: Facilities like atomic absorption spectrophotometer,
Hach potable spectrophotometer, Auto titrators, Oxidation-Reduction
Potentiometer, Glasswares.
FOAM
CLEANING
The compressed
chemical (solvent) FOAM is generated by the specially designed foam
generator is used as the cleaning medium which provides 
better surface contact than chemical circulation methods and reduces
the solvent consumption to 10% thus to eliminate disposal problems
of larger volumes of solvents.
The Foam Cleaning system is the ideal method for cleaning of process
vessels, fin tube exchangers, surface condensers, high pressure steam
turbines etc. because of its maximum solvent-to surface exposure so
as to reach entire surface without air/gas locks or gaps.
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VAPOUR
PHASE CLEANING
Chemtreat's
Vapor phase cleaning techniques and equipment's are most appropriate
for removing organic fouling from columns, especially those are used
in refineries and petrochemical industries. A wide variety of low
boiling point solvents and specialty vaporizing equipments are designed
to handle to meet any volume of cleaning requirement.
PROCESS:
The solvent vapors are introduced into the column/equipment by an
overhead line from the vaporizer and allowed the vapor to condense
inside the column to flow downward through trays for dissolving the
organic material. The condensate/the solution of organic material
is then pumped out for rectification and recycling of solvents.
The
principal advantage of our vapor phase
cleaning facility is that a large column/vessel can be effectively
cleaned with a relatively small volume of reclaimable solvent.
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HYDRODEMOLITION
NO
VIBRATION, NO REBAR DAMAGE, WILL CLEAN BETWEEN REBARS, FASTER THAN
MECHANICAL REMOVAL METHODS.
Our
Hydrodemolition systems are designed to cut/remove defective concrete
without damaging the reinforcement using rotating high pressure waterjet.
The
system will remove concrete carefully and effectively from Bridges,
Floors, Roofs, ceilings, and all vertical surfaces such as walls and
columns. The system is vibration free and will not cause any damage
to the re-bars or the surrounding area.
Hydrodemolition
system does not generate any vibration or hammer effect, hence no
cracks or fresh damage caused. The selective removal specialty of
this system minimizes the removal of good concrete and eliminates
additional structural damage. There is no rebar damage and it cleans
between rebars to provide superior bonding surface. No injury to operator
caused by vibrations and heavy lifting as compared to other mechanical
methods. This proven technology is absolutely dusting pollution free
and much faster than any mechanical removal methods. Chemtreat's Hydrodemolition
systems can cut and remove undamaged concrete without damaging the
surrounding structure.
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