THERMIC FLUID DECARBONISING CHEMICAL:

Thermic Fluid is the heating media which transfer the heat in close loop cycle.
It is available in two forms……….

  1. Mineral heat transfer oil.
  2. Synthetic heat transfer oil.

Mineral oil can withstand maximum temperature up to 280˚C. Synthetic oil can withstand maximum temperature up to 310˚C.

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.

 

 

      • EFFECTS:
  • 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:

  1. Thermin- DC
  1. Fueline-R

COMPARSION BETWEEN
FUELINE – R (OFFLINE PRODUCT)
AND
THERMIN-DC (ONLINE PRODUCT)

Sr.

Parameter

Fueline-R

Thermin-DC

 

INGRADIENTS – MFG. DETAILS.

 
  1.  

Base

Synthetic Lude Oil

Synthetic Thermic Fluid
  1.  

Strong carbon dispersant.

Organic oil based

Organic oil based
  1.  

Viscosity reducer.

Higher mol. Wt.

Higher mol. Wt.
  1.  

Penitratant

Synthetic

Synthetic
  1.  

Ionic emulsifier

Organic 10m

Organic 10m
  1.  

Corr.inhibitor

Built in base

Built in base
  1.  

PROCESS BLENDING

COLD

CLOD

 

PHYSICAL & CHEMICAL PROPERTIES.

 
  1.  

pH

Acidic

Acidic
  1.  

Specific Gravity

0.75 – 0.85

0.75 – 0.9
  1.  

Viscosity

15-20cst

18-30cst
  1.  

Flash Point – open cup

140-160˚C

190-200˚C
  1.  

Working temp.-close lop

120˚C

310˚C

 

EFFECT ON THERMIC FLUID.

 
  1.  

Application

Offline

Online
  1.  

Thermic fluid after treatment

Complete drain

Reused as normal
  1.  

pH

Increases slightly

Increases slightly
  1.  

Specific Gravity

Decreases nominally

Decreases nominally
  1.  

Viscosity

Decreases drastically

Decreases drastically
  1.  

Flash Point

Remains same

Remains same
  1.  

Acid Valve

Decreases slightly

Decreases slightly
  1.  

Autoignitation Temperature

Remains same

Remains same
  1.  

Pour Point

Decreases

Decreases

 

CASES OF WORKING.

 

 

 

FUELINE-R

THERMIN-DC

 

Working Conditions

Flash point below 150˚C

Flash point below 150˚C

Flash point above 150˚C

 

Type of action

Offline work

Online work

Online work

 

Working temperature

Less than 100˚C

Up to 300˚C

Up to 300˚C

 

Dose

7-10%

3-5%

3-5%

 

Down time

24-36hrs.

Nil

Nil

 

Addition when

Immediate

4 day prior to drain

Immediate

 

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.