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首页> 外文期刊>Pipeline & gas journal >TDL Analyzers Give Ultra-Fast H_2O and CO_2 Detection for LNG Liquefaction, Lowering Costs and Increasing Desiccant Life
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TDL Analyzers Give Ultra-Fast H_2O and CO_2 Detection for LNG Liquefaction, Lowering Costs and Increasing Desiccant Life

机译：TDL分析仪可对LNG液化进行超快速的H_2O和CO_2检测，从而降低了成本并延长了干燥剂的使用寿命

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摘要

The presence of even trace amounts of H_2O or CO_2 can threaten the integrity of processing equipment during compression and liquefaction of natural gas due to ice formation. Carbon dioxide can be a leading indicator of moisture or vice versa, so it is essential to have very fast detection to improve the life of the desiccant while maintaining product quality.rnIn the past, the industry has relied on surface based analyzers to measure trace amounts of moisture in process streams. Although these devices may perform with acceptable accuracy at first, the confidence level in their measurements soon becomes low due to drift, inability to read high concentrations of moisture, and the tendency for their sensor probes to become desensitized by the gas streams they are measuring. Such situations have led to excessive maintenance and high operational costs because the probes must be replaced on a regular basis. This is especially true in upset conditions.rnThe emergence of Tunable Diode Laser (TDL) based technologies has been a major development in many industries, and has created valuable opportunities for pipeline companies, gas processors, refineries and chemical plants to maximize productivity while avoiding high maintenance costs.
机译：由于成冰，即使在天然气的压缩和液化过程中，甚至痕量的H_2O或CO_2的存在也会威胁到加工设备的完整性。二氧化碳可能是湿度的主要指示剂，反之亦然，因此必须非常快速地进行检测以提高干燥剂的寿命，同时又要保持产品质量。过去，该行业一直依靠基于表面的分析仪来测量痕量过程流中的水分。尽管这些设备起初可能以可接受的精度运行，但是由于漂移，无法读取高浓度的水分以及其传感器探头因所测量的气流而变得不敏感的趋势，其测量的置信度很快变低。由于必须定期更换探头，因此这种情况会导致过度的维护和较高的运营成本。在恶劣的条件下尤其如此。rn基于可调谐二极管激光器（TDL）的技术的出现是许多行业的重大发展，并为管道公司，天然气加工商，炼油厂和化工厂创造了宝贵的机会，可在避免高效率的同时最大化生产率。维修费用。

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    《Pipeline & gas journal》 |2008年第7期|104|共1页
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  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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