1. School of Chemical Engineering , Northwest University, International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources; Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy; Shaanxi Research Center of Engineering Technology for Clean Coal Conversion; and Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi , Xi’an 710069 , Shaanxi , China
2. Graduate School of Science and Technology , Hirosaki University , 1-Bunkyocho , Hirosaki 036-8560 , Aomori , Japan
3. Energy Conversion Engineering Laboratory , Institute of Regional Innovation (IRI), Hirosaki University , 2-1-3 Matsubara , Aomori 030-0813 , Japan