• Bubble Caps
    Equipment- English

    How Bubble Cap Tray Works

        Distillation towers are the heart of a process plant, and the working component of a distillation column is the tray. A tray consists of the following components, as shown in figure below: Overflow, or outlet weir Downcomer Tray deck There are two types of tray decks: perforated trays and bubble cap trays. In this chapter, we describe only perforated trays, examples of which are Valves or flutter caps V grid, or extruded-valve caps Sieve decks Jet trays Possibly 90 percent of the trays seen in the plant are of these types. Perforated tray decks all have one feature in common; they depend on the flow of vapor through…

  • refinery
    Petroleum - English

    Oil Refinery Processes

      Process Objective: To distill and separate valuable distillates (naphtha, kerosene,diesel) and atmospheric gas oil (AGO) from the crude feedstock. Primary Process Technique: Complex distillation Process steps: –Preheat the crude oil feed utilizing recovered heat from the product streams –Desalt and dehydrate the crude using electrostatic enhanced liquid/liquid separation (Desalter) –Heat the crude to the desired temperature using fired heaters –Flash the crude in the atmospheric distillation column –Utilize pumparoundcooling loops to create internal liquid reflux –Product draws are on the top, sides, and bottom. Typical Yields and Dispositions: product & Yield in wt% of Crude Light Ends 2.3 Light Naphtha  6.3 Medium Naphtha 14.4 Heavy Naphtha 9.4 Kerosene  9.9 Atmospheric Gas Oil…