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THERMIC FLUID DECARBONISING CHEMICAL:
Thermic Fluid is the heating media which transfer the heat in close loop cycle.
It is available in two forms
- Mineral heat transfer oil.
- Synthetic heat transfer oil.
Mineral oil can withstand maximum temperature up to 280ËšC. Synthetic oil can withstand maximum temperature up to 310ËšC.
Continuous use of thermic fluid systems results in to deteriorating of Thermic fluid.
The main causes for deterioration are oxidation & cracking.
- Oxidation: Oxidation at higher temperatures causes formation of sticky carbon. This causes choking of the system & reduced heat transfer efficiency & also produces acidic products. These add to viscosity of the oil along with increase in corrosion rate at internal parts of thermic fluid heating system.
- Cracking: Overheating of the thermic fluid caused by insufficient circulation. This results in to de-polymerization of long chain compound. This localized heating above cracking temperature of oil. Cracking results in to release higher hydrocarbons which increases viscosity & reduces flash point of thermic fluid. Polymerization cause by these hydrocarbons form deposits reducing flow rate & heat transfer efficiency.
- PARAMETERS OF THERMI FLUID TO BE CHEKED:
- Appearance
- Moisture content
- Flash Point
- Fire Point
- Auto ignitation temperature
- Kinematics Velocity
- Density
- Specific Gravity
- Coefficient of Thermal Expansion
- Average molecular weight
- Pour point
- DETERATION OF THERMIC FLUID:
- PARAMTERS:
- Reduction in flash point.
- Increase in Viscosity.
- Colour changes to darker shade.
- Increase in acid no.
- Lowering of boiling point.
- Reduction in pump circulation in pump circulation rate.
- Reduction in heat transfer efficiency.
- Higher fuel consumption.
- Less Productivity
- Reduction in life.
- Safety hazards.
CHEMICALS USE FOR THERMIC FLUID DECARBONIZING ARE:
- Thermin- DC
- Fueline-R
COMPARSION BETWEEN
FUELINE R (OFFLINE PRODUCT)
AND
THERMIN-DC (ONLINE PRODUCT)
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Sr.
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Parameter
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Fueline-R
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Thermin-DC
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INGRADIENTS – MFG. DETAILS.
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-
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Base
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Synthetic Lude Oil
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Synthetic Thermic Fluid
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-
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Strong carbon dispersant.
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Organic oil based
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Organic oil based
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-
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Viscosity reducer.
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Higher mol. Wt.
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Higher mol. Wt.
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-
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Penitratant
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Synthetic
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Synthetic
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-
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Ionic emulsifier
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Organic 10m
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Organic 10m
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-
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Corr.inhibitor
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Built in base
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Built in base
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-
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PROCESS BLENDING
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COLD
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CLOD
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PHYSICAL & CHEMICAL PROPERTIES.
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-
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pH
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Acidic
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Acidic
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-
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Specific Gravity
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0.75 0.85
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0.75 0.9
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-
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Viscosity
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15-20cst
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18-30cst
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-
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Flash Point open cup
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140-160
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190-200
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-
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Working temp.-close lop
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120
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310
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EFFECT ON THERMIC FLUID.
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-
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Application
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Offline
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Online
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-
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Thermic fluid after treatment
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Complete drain
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Reused as normal
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-
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pH
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Increases slightly
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Increases slightly
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-
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Specific Gravity
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Decreases nominally
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Decreases nominally
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-
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Viscosity
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Decreases drastically
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Decreases drastically
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-
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Flash Point
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Remains same
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Remains same
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-
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Acid Valve
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Decreases slightly
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Decreases slightly
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-
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Autoignitation Temperature
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Remains same
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Remains same
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-
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Pour Point
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Decreases
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Decreases
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CASES OF WORKING.
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FUELINE-R
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THERMIN-DC
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Working Conditions
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Flash point below 150
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Flash point below 150
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Flash point above 150
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Type of action
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Offline work
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Online work
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Online work
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Working temperature
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Less than 100
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Up to 300
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Up to 300
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Dose
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7-10%
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3-5%
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3-5%
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Down time
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24-36hrs.
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Nil
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Nil
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Addition when
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Immediate
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4 day prior to drain
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Immediate
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THERMIN DC
ONLINE THERMIC FLUID DECARBONIZING CHEMICAL
Thermin DC is a powerful formation which is a combination of strong carbon dispersant, emulsifier & corrosion inhibitor.
This formulation is used effectively for online decarbonization of entire thermic fluid system. FUELINE R
PRODUCT DETAILS ADVANTAE OF USING FUELINE R Fueline R is powerful formulation which is combination of strong carbon dispersant, emulsifier & corrosion inhibitor.
This formulation is used effectively for decarbonization & descaling of entire thermic fluid system. This is an ideal solution
to be applied before replacement of thermic fluid from any system.
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