217
VACUUM PRESSURE
5.1.System of making vacuum…………………………………………….
52
5.2.Black oil driving in vacuum surrounding in two steps………………
53
5.3.Technology in driving by atmosphere vacuum pressure……………
56
Chapter VI. THE PROCESS OF HYDROGENIZATION
6.1. Independent and dependent states
of hudrocleaning process of
industrial equipments……………………………………………………...
64
6.2. Hydrocleaning process of fuel destillates…………………………...
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