METHOD AND APPARATUS FOR ACHIEVING ENHANCED OXYGEN MASS TRANSFER IN SLURRY SYSTEMS

摘要

A method of oxidising a slurry containing solid reactants which includes the step of supplying a feed gas containing in excess of 21 % oxygen by volume, to the slurry. Preferably the feed gas contains more than 85 % oxygen by volume. The method includes the step of maintaining the dissolve oxygen concentration in the slurry within a desired range. An oxidation plant therefor includes a reactor vessel, an oxygen source, a device for measuring the dissolved oxygen concentration in the slurry and a control mechanism for adjusting the supply of oxygen in response to the measured dissolved oxygen concentration.