| 摘要: |
| 天然气组成分析是天然气工业中最为基础的分析项目,我国强制性标准GB 17820-2012《天然气》规定的二氧化碳浓度和高位发热量两个指标均与天然气组成分析有关,而分析结果的精密度要求是天然气组成分析方法规定的重要技术参数。比较了国内外天然气常规组成分析方法标准规定的精密度值,并通过试验,验证了不同方法分析结果所能达到的精密度,对各方法标准规定精密度值的合理性进行了探讨,其结论可为使用者选择合适的方法标准分析天然气组成提供借鉴。 |
| 关键词: 天然气 组成分析 方法标准 精密度 重复性 再现性 一致性 |
| DOI：10.3969/j.issn.1007-3426.2016.06.018 |
| 分类号:TE648 |
| 基金项目: |
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| Analysis of the precision requirement of the method standards for natural gas composition analysis |
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Zeng Wenping1,2,Wang Xiaoqin1,2, Feng Yunlin3, Zhou Jun4
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(1. Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu 610213,China;2. Key Laboratory of Natural Gas Quality Control and Energy Measurement, PetroChina, Chengdu 610213, China;3. Gas Branch, PetroChina Southwest Oil and Gasfield Company, Chengdu 610000, China;4. Technical Center of Yili Entry Exit Inspection and Quarantine Bureau, Yining 835000, China)
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| Abstract: |
| Natural gas composition analysis is the most basic analysis item in the natural gas industry. The two indexes of carbon dioxide content and superior calorific value provided in GB 17820-2012 Natural Gas relate to natural gas composition analysis. The precision requirement of analysis results is an important technical parameter for natural gas composition analysis method. This paper compared the precision of natural gas conventional composition analysis methods at home and abroad, and verified the precision through experiment by using the different analysis methods. The precision reasonability and consistency of the different analysis methods were discussed. The conclusion could provide a reference for the users to choose different methods to analyze natural gas composition. |
| Key words: natural gas composition analysis standard of analysis method precision repeatability reproducibility consistency |
