Electrochemical impedance characterization on catalytic carbon gasification reaction process

An experimental study of CaSO 4 decomposition during coal pyrolysis

“…The result showed that about only 11.6% of carbon of the coal was reduced at 800°C under 20% CO 2 atmosphere, which was mainly attributed to gasification reactions. The value obtained under N 2 atmosphere was far below 11.6% due to low CO 2 partial pressure, for it was widely recognized that the gasification reaction heavily depended on the CO 2 concentration [23][24][25]. But in fact, the value of carbon content in coal decreased in the presence of CaSO 4 under N 2 atmosphere reached 34% in this study.…”