In recent work, Yin (2012a) discussed microwave-assisted pyrolysis (MAP) of biomass and reviewed the researches and developments efforts and their major findings. Most of the MAP methods developed previously used batch-type process. Also, since the biomass takes several minutes to be heated to the reaction temperature, these processes fall into the intermediate rate pyrolysis category. In fact, increasing the heating rate and consequentially reduce the reaction time, is one of the most challenging issues in order to obtain higher yields and quality of bio-oil.