When comparing catalyst prices, should one compare the cost per weight of catalyst or cost per volume of catalyst? The catalyst pellets are similar in size and have similar compositions but one is reported with an 18% higher bulk density than the other.
What type of valve will be able to throttle in a slurry service? The slurry is a saturated ash water with a pH of 13.5, total solids of 200000 ppmw, and TSM of 5200 ppmw. We have used standard ball valves in the past which don't last very long. We recently tried elastomer pinch valves which...