Abstract
Liquid pollutants and coke formation can cause many problems in steam reforming of bio-oil for hydrogen production. From an environmental and economic point of view, an operation of liquid condensate recycling aiming at eliminating secondary pollution as well as carbon deposition was applied in this work. Under the optimal reaction conditions, m-cresol (a heavy organic compound present in bio-oil) was steam-reformed on a highly efficient commercial Ni-based catalyst for 6 h time-on-stream. Gas product distribution, liquid pollutant formation, and carbon deposition behavior were investigated, respectively. On the basis of one-time liquid condensate recycling, a green and efficient steam-reforming process can be achieved. Under different reaction conditions, the possibility of achieving this green process was evaluated. The results indicated that under a much higher temperature (900 °C), m-cresol becomes easier to steam reform but it is still impossible to achieve a green process just by a single steam refo...
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