Construction of the steam pretreatment and coal pyrolysis reactors for experiments with the UCC coal was nearly completed. Two of the pyrolysis experiments done as part of the pyrolysis matrix were repeated in order to verify previous data. The more recent trials were done after slowing down the gas flow to ensure that the particles had a residence time of 0.070 s at the final temperature. These results were more in accordance with other experiments done at the same temperature in the high pressure reactor. Several other experiments were done which were designed to overlap with the METC AGC conditions. The direct comparisons of our data with METC data under the same nominal conditions indicated that the METC data was taken under more severe conditions. It is believed that the use of gas preheated 200-500F above the nominal reaction temperature in the METC experiments is primarily responsible for the discrepancy. Several (nineteen) CO2 gasification experiments were done in the high pressure reactor. Some of these were repeat experiments which indicated that reproducibility was good for major product yields (char, tar, gas) and fair for the individual gas species. There is a problem in the FT-IR gas analyses of interference from the large amounts of CO2 on yields of other gases. We are currently checking gas yield measurements by FT-IR with those from gas chromatography (GC). The characterization experiments for the set of 32 chars discussed in the last quarterly were essentially completed. These included analysis of C,H,N, and ash at a commercial lab, in-house characterization with a TGA for reactivity, FT-IR for functional groups, x-ray for minerals, including sulfur, and Scanning Electron Microscope (SEM) for char structure. 18 refs., 6 figs., 3 tabs.