Heat transfer medium systems HTM system Therminol VP1

filling valves to poly consumers such as HTM evaporators are closed... - Open nitrogen blanketing of expension vessel 61D2expansion vessel 61D2 until 61LSL2 - Put nitrogen blanketing con

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HPD, HSA, HSB

- HPD = Primary Liquid System (~ 340°

- HSA = Secondary Liquid System A (~ 265°

- HSB = Secondary Liquid System B (~ 285°

- HSC = Secondary Liquid System C (~ 200°

- HFD = HTM Filling Line

Heat Transfer Medium (HTM)

DIPHENYL OXIDE (73.5%)and BIPHENYL (26.5%)

than the mixture; Diphenyl oxide = 26 –27°C / Biphenyl = 68 70°C Eutectic mixture = 12°

- Typical HTM synonyms:

Solutia:

- HTM is filled from 2

- Dewatering for at least 3 days at 150 - 160°

heating problems

filling valves to poly (consumers such as HTM evaporators) are closed

- Open nitrogen blanketing of expension vessel 61D2

expansion vessel 61D2

until 61LSL2

- Put nitrogen blanketing control valve 61PIC211 in operation

filling line

Example of primary HTM distribution system

Example of secondary HTM distribution system

~ 340°

~ 305°

~ 290 °

before

Uhde Inventa-Fischer