461389 Microwave-Assisted Pyrolysis of Coal-Biomass Mixturs UNDER Reactive Gases
Conversion of coal/biomass blends into higher value chemicals can either be achieved directly, by non-oxidative routes or indirectly, by oxidative routes. Usually, multiple chemical processes are involved in oxidative routes; first a gasification step is needed to produce syngas, followed by Fisher Tropsch reactions to produce chemicals. On the other hand, pyrolysis could be used as a single step process to convert these blends directly into chemicals. However, the main obstacle in conventional thermal pyrolysis is the formation of high molecular weight tars which is difficult to handle and require further cracking to be utilized. In this work, microwave-assisted pyrolysis was studied on samples of Mississippi lignite and PRB subB coals mixed with 25 wt% yellow pine wood sawdust. The microwave-assisted pyrolysis product distributions of the above blends were compared to those using conventional thermal pyrolysis.