We have a Biturox plant in refinery producing bitumen of different grades.
At the top of column , we have a bend pipe (8" dia) of length 1080 mm and 660 mm vertical for collecting offgases. It gets choked frequently. Hard coke gets deposited in the pipe section. After removing pipe flange...
Frequent pump gland leaks of Bitumen handling pumps
we have three screw type pumps handling bitumen at 280 deg c and 3 kg/cm2g pressure. We have put gland packings of Chesterton make withstanding upto 600 deg c. Glands are being cooled by putting LP steam for quenching.
After replacing glands...