Decarbonising Chemical

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

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

2. Fueline-R