In this work,to efficiently utilize waste fruit and low-rank coal for the hydrogen(H_(2))-rich syngas production,steam co-gasification of banana peel(BP)and brown coal(BC)was studied in a fixed-bed reactor.The results...In this work,to efficiently utilize waste fruit and low-rank coal for the hydrogen(H_(2))-rich syngas production,steam co-gasification of banana peel(BP)and brown coal(BC)was studied in a fixed-bed reactor.The results showed that the gasification rate of BC was highly enhanced after mixing it with BP and the obvious synergistic effect was observed in all investigated three mixing weight ratios(i.e.,1:1,1:4,4:1),resulting in a higher carbon conversion as well as a H_(2)-rich gas production yield for the co-gasification.However,the extent of promotion by synergistic effect was affected by the reaction temperature,mixing ratio,and steam amount.It was found that the high potassium(K)species content in the BP provided the catalytic effect not only on water-gas shift reaction but also on tar reforming/cracking,thereby enhancing the gasification of BC.In addition,it is confirmed that steam should be an important factor to promote the synergistic effect and H_(2)-rich gas production.展开更多
CeO2,MnOx and ZnO were used as supports of Cu-based catalysts respectively in this study.The influences of these supports on the catalyst for CO oxidation in H2-rich gases were investigated.The catalysts were characte...CeO2,MnOx and ZnO were used as supports of Cu-based catalysts respectively in this study.The influences of these supports on the catalyst for CO oxidation in H2-rich gases were investigated.The catalysts were characterized by XRD(X-ray diffraction),BET(BET surface area),TPD(Temperature-programmed desorption) and TPR(Temperature-programmed reduction) methods.The results indicate that CuO/CeO2 catalyst has higher catalytic activity,for CO oxidation than CuO/MnO or CuO/ZnO catalyst.The CO conversion of CuO/CeO2 catalyst at 413K and 433K are 85% and 97%,respectively.Comparing with the other two catalysts,CuO/CeO2 catalyst has larger surface area,pore volume,CO adsorption amount and reduction peak area,while lower CO desorption and reduction temperature.Besides there is a stronger metal-support interaction in CuO/CeO2 catalyst than in other catalysts.All these favour the activity of the catalyst.展开更多
基金supported by JST Grant Number JPMJPF2104 and Hirosaki University Fundthe scholarship from the Ministry of Education,Culture,Sport,Science and Technology(MEXT)of Japan.
文摘In this work,to efficiently utilize waste fruit and low-rank coal for the hydrogen(H_(2))-rich syngas production,steam co-gasification of banana peel(BP)and brown coal(BC)was studied in a fixed-bed reactor.The results showed that the gasification rate of BC was highly enhanced after mixing it with BP and the obvious synergistic effect was observed in all investigated three mixing weight ratios(i.e.,1:1,1:4,4:1),resulting in a higher carbon conversion as well as a H_(2)-rich gas production yield for the co-gasification.However,the extent of promotion by synergistic effect was affected by the reaction temperature,mixing ratio,and steam amount.It was found that the high potassium(K)species content in the BP provided the catalytic effect not only on water-gas shift reaction but also on tar reforming/cracking,thereby enhancing the gasification of BC.In addition,it is confirmed that steam should be an important factor to promote the synergistic effect and H_(2)-rich gas production.
文摘CeO2,MnOx and ZnO were used as supports of Cu-based catalysts respectively in this study.The influences of these supports on the catalyst for CO oxidation in H2-rich gases were investigated.The catalysts were characterized by XRD(X-ray diffraction),BET(BET surface area),TPD(Temperature-programmed desorption) and TPR(Temperature-programmed reduction) methods.The results indicate that CuO/CeO2 catalyst has higher catalytic activity,for CO oxidation than CuO/MnO or CuO/ZnO catalyst.The CO conversion of CuO/CeO2 catalyst at 413K and 433K are 85% and 97%,respectively.Comparing with the other two catalysts,CuO/CeO2 catalyst has larger surface area,pore volume,CO adsorption amount and reduction peak area,while lower CO desorption and reduction temperature.Besides there is a stronger metal-support interaction in CuO/CeO2 catalyst than in other catalysts.All these favour the activity of the catalyst.
