Transcription of PROCESS VESSELS V a.
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PROCESS VESSELS V a.
18 PROCESS essels in chemical processing service are of two kinds: those substantially without internals and those with internals. The main functions of the first storage or surge of a PROCESS stream for a limited or extended period or to provide a phase separation by settling. Their sizes may be established by definite PROCESS calculations or by general rules based on experience. The second category comprises the shells of equipment such as heat exchangers, reactors, mixers, fractionators, and other equipment whose housing can be designed and constructed largely independently of whatever internals are necessary. Their major dimensions are established by PROCESS requirements described in other chapters, but considerations of adequate strength of VESSELS at operating pressures and temperatures will be treated in this chapter.
612 PROCESS VESSELS number of minutes of flow on a half-full basis.For many services, 5-10 min half-full is adequate but two notable exceptions are: 1. Fired heater feed surge drum for which the size is 10-30min
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