Five of the nine coal/CO/sub 2/ gasification experiments for class 3.G were completed. These involved repeat experiments for the composite factorial matrix and tests which partially overlap the METC matrix. The four remaining experiments are of the latter type. We decided to save these until the end since they will push the high pressure reactor to its limits. Nearly all of the char gasification experiments with AFR chars under class 3.H have been completed and about one-half of those under class 4.F. A set of 5 chars was received from METC to complete the set. Completion of these experiments was delayed by a heating element failure in the reactor system. This has been repaired and the tests are continuing. Char characterization was done on chars received from METC. Measurements were made of N/sub 2/ or CO/sub 2/ surface area and reactivity. An inventory was taken of all of the char samples produced in our program in order to select additional samples for completing the char characterization and reactivity part of the study. The areas of interest include the effect of minerals, heating rate, molecular order, and CO/sub 2/ versus O/sub 2/ reactivity. The pyrolysis data for composite factorial matrices with 200 x 270 and 100 x 140 mesh fractions of Montana Rosebud coal was subjected to statistical analysis at METC. In general, the regression model did a good job in predicting yields of the major products, with the exception of water where the data are quite scattered. 3 refs., 9 figs., 3 tabs.