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首页> 外文会议>POWER-GEN Europe 2007 >OPTIMUM GAS QUALITY SPECIFICATIONS - A LABORATORY'S PERSPECTIVE: WHAT SHOULD IT CONTAIN AND WHAT TESTS SHOULD BE CALLED OUT
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OPTIMUM GAS QUALITY SPECIFICATIONS - A LABORATORY'S PERSPECTIVE: WHAT SHOULD IT CONTAIN AND WHAT TESTS SHOULD BE CALLED OUT

机译：最佳的气体质量规格-实验室的观点：应包含哪些内容和应进行的测试

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As new gas fields are developed in remote sections of the globe, we have witnessed an accelerated development and production of gas fuels and especially the production of green gas fuels such as sour gas and landfill gases. But fuel gas quality is changing and contaminants are increasing. This proves to adversely affect the turbine operation in today's designs of turbines of all sizes throughout the industry. Fuel gas specifications must be defined more stringently. This applies not only to the calorific content of the gas composition but also to minimizing the particulates, liquid hydrocarbons, water vapor, trace metals, and any inorganic material accompanying the gas fiiels. Particulates and trace metals can have a deleterious effect on the service life of a turbine. Contaminants in natural gas are different than those in other gas; for example, siloxanes are often found in landfill gases. A comprehensive analysis of gas fuels will not only ensure quality but also will tremendously assist in specifying what type of fuel conditioning systems should be installed. The analysis will help define filtration types (dry/ coalescing capacities, pore sizes, etc.). This will address from the beginning, current problems facing many utilities such as undersize filters which result in constant clogging, frequent shut-downs/restarts, which are especially critical for base load turbines and where the utility relies on their constant operation. These are the questions that can be answered using the well-defined gas quality specifications. Detailed recommendations for suitable gas fuel specifications will be presented using and comparing ASTM and European standards of ISO. A complete specification should define characteristics for both natural gas and green gas. Examples will be given of cost-effective analyses that have been performed which have been shown to enhance overall plant performance.
机译：随着全球偏远地区开发新的气田，我们目睹了气体燃料的开发和生产加速，尤其是酸性气体和垃圾填埋气等绿色气体燃料的生产。但是燃料气体的质量在变化，污染物也在增加。事实证明，这在当今整个行业中各种尺寸的涡轮机设计中都会对涡轮机运行产生不利影响。必须更严格地定义燃气规格。这不仅适用于气体成分的热含量，还适用于使微粒，液态碳氢化合物，水蒸气，痕量金属和伴随气体纤丝的任何无机材料减至最少。微粒和痕量金属会对涡轮机的使用寿命产生有害影响。天然气中的污染物不同于其他气体中的污染物。例如，在垃圾填埋场中经常发现硅氧烷。气体燃料的全面分析不仅将确保质量，还将极大地帮助您指定应安装哪种类型的燃料调节系统。该分析将帮助定义过滤类型（干/聚结能力，孔径等）。这将从一开始就解决许多公用事业面临的当前问题，例如尺寸过小的过滤器会导致持续堵塞，频繁的停机/重启，这对于基本负荷涡轮机尤其重要，公用事业依赖于它们的持续运行。这些是可以使用明确定义的气体质量规范来回答的问题。使用和比较ASTM和ISO的欧洲标准，将提出适用气体燃料规格的详细建议。完整的规范应定义天然气和绿色天然气的特性。将举例说明已进行的具有成本效益的分析，这些分析已显示出可增强整个工厂的性能。

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