Читать книгу Petroleum Refining Design and Applications Handbook - A. Kayode Coker - Страница 30

1 1. Up to 345°C (650°F), 85% magnesia is used.

2 2. Up to 870–1040°C (1600–1900°F), a mixture of asbestos and diatomaceous earth is used.

3 3. Ceramic refractories at higher temperatures.

4 4. Cryogenic equipment −130°C (−200°F) employs insulations with fine pores of trapped air, for example, PerliteTM.

5 5. Optimum thickness varies with temperature: 12.7 mm (0.5 in.) at 95°C (200°F), 25.4 mm (1.0 in.) at 200°C (400°F), 32 mm (1.25 in.) at 315°C (600°F).

6 6. Under windy conditions, 12.1 km/h (7.5 miles/h), 10–20% greater thickness of insulation is justified.