simple black and white process flow diagram for a refinery report, technical drawing. On the left, a tall rectangular column labeled "K-2". On the right, a square air cooler labeled "AVO T-4" with a fan on top. At the bottom right, a horizontal tank labeled "E-2". Small square pumps at the bottom. Pipes with arrows: from the top of the column to the air cooler, from the air cooler to the tank, from the tank back to the top of the column, and from the bottom of the column to a pump. Small circles with letters T, L, F, PI are placed on the pipes. Vector graphics, clean lines, white background, isometric view. Mehr sehen