IMPROVED AIR GRID DESIGN FOR AN OXIDATION OR AMMOXIDATION REACTOR

摘要

Inadequate reactant mixing as well as localized reactor hot spots in a commercial acrylonitrile reactor can be significantly reduced if the distance between sparger system 16 and air grid 14 is controlled to be within 6 to 24 inches (~15 to ~61 cm), preferably 8 to 12 inches (~20 to ~30.5 cm). In addition, problems of air grid movement on or off support and air grid mechanical failure can be eliminated essentially completely by means of a modified system for attaching the air grid to the walls of the reactor as well as its internal support beams.