共查询到20条相似文献,搜索用时 78 毫秒
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以实际比对实验为例,介绍了BCH-1型半自动碳氢测定仪在测定煤中碳氢的几个影响因素,并提出控制措施,以确保碳氢测定结果的准确性. 相似文献
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以实际比对实验为例,介绍了TQ-3A碳氢元素分析仪在测定煤中碳氢的几个影响因素,并提出控制措施,以确保碳氢测定结果的准确性。 相似文献
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从原理和过程等多方面分析了经典二节炉法测定煤中碳氢时影响测定准确度的诸多因素,从燃烧管内的填充试剂和吸收系统药品的选择与使用、碳氢测定装置的气密性、炉温的选择等方面探讨对煤中碳氢测定准确度的影响,并提出了相应的解决方法及注意事项。 相似文献
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为确保固体生物质碳氢检测的准确性,拟采用电量重量法测定固体生物质燃料碳氢时应经证实其可靠性后方可使用。分别对人员技术能力、仪器设备(标准物质)、样品和试剂、设施和环境、检测方法实施、检测结果控制等方面进行评价和确认,以确保新方法的可行性和适用性以及检测结果的准确性。对10个不同种类的固体生物质样品的碳和氢进行重复测定试验,计算所得碳、氢的重复性限分别为0. 47%、0. 12%,符合相关要求。采用电量重量法与GB/T 28734—2012 《固体生物质燃料碳氢测定方法》中三节炉法进行碳氢含量测定的成对比较,对电量-重量法进行准确度评价,确认电量重量法碳氢测定值与三节炉碳氢测定值无明显偏倚。 相似文献
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研究了固体生物质燃料中碳、氢含量及其组成特点,在GB/T476—2001的基础上采用三节炉法对21种固体生物质燃料进行了正交条件试验。通过对试验结果的统计分析,提出最佳试验方案,为下一步制定固体生物质燃料碳、氢测定方法标准奠定了科学基础。 相似文献
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根据煤中碳和氢测定的基本原理,分析了影响煤中碳和氢准确测定的若干因素,并提出了相应的解决办法以确保测试结果的准确性。 相似文献
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1IntroductionIt is the key problemthat howto transformefficiently electric energyinto hydrogen energy for propelFig.l The flowchart of indirect electrolysis of H2Sthe clean energy use extensively[1].At present,the advanced method could avoid passivation of anode bysulfur[2],andit only consumed1/2-1/3electricitythanthat by water electrolysis[3],its basic flowsheet wasshownin Fig.1.Every kinds of hydride such as H2S and so on[1-3],could be used to produce hydrogen by the way of e-lectrolysis … 相似文献
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Study on hydrogen evolution performance of the carbon supported PtRu alloy film electrodes 下载免费PDF全文
YANG Bin LI Yang ZAN Lin-han 《材料研究与应用》2005,(3):375-379
The carbon supported PtRu alloy film electrodes having Pt about 0.10 mg/cm2 or even less were prepared by ion beam sputtering method (IBSM). It was valued on the hydrogen analyse performance, the temperature influence factor and the stability by electroanalysis hydrogen analyse method. It was found that the carbon supported PtRu alloy film electrodes had higher hydrogen evolution performance and stability, such as the hydrogen evolution exchange current density (j0) was increase as the temperature (T) rised, and it overrun 150 mA/cm2 as the trough voltage in about 0.68V, and it only had about 2.8% decline in 500 h electrolytic process. The results demonstrated that the carbon supported PtRu alloy film electrodes kept highly catalytic activity and stability, and it were successfully used in pilot plant for producing H2 on electrolysis of H2S. 相似文献
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Study on hydrogen evolution performance of the carbon supported PtRu alloy film electrodes 下载免费PDF全文
The carbon supported PtRu alloy film electrodes having Pt about 0.10 mg/cm2 or even less were prepared by ion beam sputtering method (IBSM). It was valued on the hydrogen analyse performance, the temperature influence factor and the stability by electroanalysis hydrogen analyse method. It was found that the carbon supported PtRu alloy film electrodes had higher hydrogen evolution performance and stability, such as the hydrogen evolution exchange current density (j0) was increase as the temperature (T) rised, and it overrun 150 mA/cm2 as the trough voltage in about 0.68V, and it only had about 2.8, decline in 500 h electrolytic process. The results demonstrated that the carbon supported PtRu alloy film electrodes kept highly catalytic activity and stability, and it were successfully used in pilot plant for producing H2 on electrolysis of H2S. 相似文献