Model for Estimating Coke Porosity Distribution Based on X-ray Computerized Tomogram in Coke Oven

Abstract

Several kinds of coal were carbonized by using the coke oven with X-ray computerized tomography scanner (CT oven). Estimation of apparent density distribution of the coal charge during carbonization was successfully carrried out by using the scanner.
(1) The coal charge expands owing to the swelling pressure in the plastic layer during the early carbonization period.
(2) The density distribution of the plastic layer is V-shape.
The estimation model of the coke porosity distribution is developed based on these phenomena. The validity of the model is confirmed through the CT oven.