Their results show that the optimum steady mode shifting temperature for their experiment is about 75 ℃; in addition, they reported the most appropriate pre-set heating temperature for facilitating the most rapid response of the catalyst reformer. Furthermore, the hydrogen concentration produced in their experiment was as high as 49.1% with a volume flow rateup to 23.0 L min-1 , and 40.0% with a volume flow rate of 20.5 L min-1 using auto-thermal and partial oxidation processes, respectively.