Heat Transfer Fluid Equivalent to Dowtherm RP

KylinTherm THPN

Synthetic Heat Transfer Fluids, equivalent to DOWTHERM RP

KylinTherm THPN is Diaryl Alkyl high-temperature synthetic heat transfer fluid developed for use in applications require liquid phase heat transfer. It has a relatively broad operating temperature range of -20°C ~ 350°C.

Advantages & Benefits 

KylinTherm THPN is one of the best high-temperature tolerance liquid phase heat transfer fluid, provides excellent high temperature stability, can serve the maximum operating temperature upto 350°C in liquid phase. It has excellent anti-coking properties, can maintain its performances under repeated cycles of cooling and heating.

KylinTherm THPN is pumpable at low-temperature, can be easily started up at low temperature.

KylinTherm THPN has low degrading rate, primarily degrades to low molecular weight material. This provides the advantages of high cleaness, longer fluid life, reduced fluid makeup requirements, less system downtime, lower fluid and maintenance expense over the life of the heat transfer system. 

KylinTherm THPN is suited for use in the applications of non-pressurized or low pressure liquid phase systems, including polyester, nylon, and other synthetic fiber processing facilities. 

Components Information  

Mixture of 1,2,3,4-Tetrahydro-5-(1-phenylethyl)naphthalene, CAS NO. 60466-61-7 and

1,2,3,4-Tetrahydro-6-(1-phenylethyl)naphthalene; CAS NO. 6196-98-1

Typical Values

Appearance: Colorless Transparent Liquid

Component: Diaryl Alkyl

Moisture Content / (mg/kg): 40

Flash Point / °C:  192

Auto Ignition Temperature / °C:  390

Pour point / °C: -30

Density (20°C) (kg/m3):  1026

Total Acidity / KOH (mg/g): 0.01

Carbon Residue %:  0.01

Distillation Range 2% / °C:  330

Kinematic Viscosity (mm2 /s) @ 0°C: 227

Kinematic Viscosity (mm2 /s) @ 40°C:  14.8

Kinematic Viscosity (mm2 /s) @ 100°C:  2.8

Average Molecular Weight:  236

Coefficient of Thermal Expansion (300℃) / ℃:  0.000952

Heat of Combustion / (kJ/kg):  40194

Pseudocritical Temperature / ℃:  575

Pseudocritical Pressure / bar:  20

Pseudocritical Density / (kg/m3):  3.4

Optimal Applicable Temperature Range / ℃:  -20-350

Maximum Operation Temperature / ℃:  350

Maximum Liquid Film Temperature / ℃:  380