REACTION VESSEL FOR CONDUCTING CATALYTIC GAS-PHASE PROCESSES

摘要

An improved interbed seal for fixed multibed vapor phase catalytic reactors which provides minimum leakage between beds operated under different conditions or with different reactant concentrations. The improved seal consists in a floating seal of a plurality of layers of different sizes of finely divided inert material of increasing size from the center of the seal to the adjacent catalyst beds. The improved seal offers efficient sealing, economy of cost and ease of charge and discharge together with the plurality of catalyst beds for regeneration or recharging fresh catalysts. The preferred finely divided inert material is well-sieved sand of a plurality of different size ranges from smaller than 100 mesh to one-eighth inch.