【目的】寻找可以调控孔道尺寸的催化剂材料,以实现对焦油的有效脱除,解决生物质气化过程中的瓶颈问题。【方法】首先以具有多孔结构的聚多巴胺碳材料作为载体,采用水蒸气活化聚多巴胺碳材料和浸渍法负载金属等手段,制备载铁碳基焦油裂...【目的】寻找可以调控孔道尺寸的催化剂材料,以实现对焦油的有效脱除,解决生物质气化过程中的瓶颈问题。【方法】首先以具有多孔结构的聚多巴胺碳材料作为载体,采用水蒸气活化聚多巴胺碳材料和浸渍法负载金属等手段,制备载铁碳基焦油裂解催化剂;然后通过扫描电子显微镜(scanning electron microscope,SEM)、透射电子显微镜(transmission electron microscope,TEM)、全自动物理吸附仪(brunner emmett teller,BET)、傅里叶红外光谱仪(Fourier transform infrared spectroscopy,FTIR)等仪器对样品的物理化学性质进行表征;最后采用甲苯作为焦油模型验证材料的催化效果。【结果】活化温度的提高和活化时间的增加可以有效增大材料的比表面积和孔体积,而改变活化气氛中的水蒸气体积分数对材料的比表面积和孔体积影响不大;负载铁的聚多巴胺碳基催化剂的比表面积和孔体积,随着负载铁浸渍液的硝酸铁质量分数的升高先增大后降低,它的甲苯脱除效率也是如此。【结论】本研究结果可为焦油裂解催化剂的研究提供理论指导和技术创新参考。展开更多
The quality control of ocean observation data is conducted by monthly review,yet no on-line quality control system is deployed.An on-line quality control system is provided by this article.The threshold of extreme and...The quality control of ocean observation data is conducted by monthly review,yet no on-line quality control system is deployed.An on-line quality control system is provided by this article.The threshold of extreme and rate of change is created by analyzing the character of observation items.The alert will be triggered to remind the operator if the system detects data out of threshold.therefore the on-line data quality control is accomplished.展开更多
文摘【目的】寻找可以调控孔道尺寸的催化剂材料,以实现对焦油的有效脱除,解决生物质气化过程中的瓶颈问题。【方法】首先以具有多孔结构的聚多巴胺碳材料作为载体,采用水蒸气活化聚多巴胺碳材料和浸渍法负载金属等手段,制备载铁碳基焦油裂解催化剂;然后通过扫描电子显微镜(scanning electron microscope,SEM)、透射电子显微镜(transmission electron microscope,TEM)、全自动物理吸附仪(brunner emmett teller,BET)、傅里叶红外光谱仪(Fourier transform infrared spectroscopy,FTIR)等仪器对样品的物理化学性质进行表征;最后采用甲苯作为焦油模型验证材料的催化效果。【结果】活化温度的提高和活化时间的增加可以有效增大材料的比表面积和孔体积,而改变活化气氛中的水蒸气体积分数对材料的比表面积和孔体积影响不大;负载铁的聚多巴胺碳基催化剂的比表面积和孔体积,随着负载铁浸渍液的硝酸铁质量分数的升高先增大后降低,它的甲苯脱除效率也是如此。【结论】本研究结果可为焦油裂解催化剂的研究提供理论指导和技术创新参考。
基金sponsored by the project of North Bureau of SOA 2017(Development and application of online quality control system for automatic observation data of Ocean Station No.2017B12)。
文摘The quality control of ocean observation data is conducted by monthly review,yet no on-line quality control system is deployed.An on-line quality control system is provided by this article.The threshold of extreme and rate of change is created by analyzing the character of observation items.The alert will be triggered to remind the operator if the system detects data out of threshold.therefore the on-line data quality control is accomplished.