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Materials issues in waste and biomass combustion plants: approaches for improved energy efficiency

机译：废物和生物质燃烧厂的材料问题：提高能源效率的方法

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Efforts to improve the energy efficiency of waste incineration and biomass combustion plants continue to attract an increasing level of importance as the drive to improve energy efficiency and the security of energy supply continues to gather pace. All renewable sources of energy are important to help minimise the impact of climate change of processes feeding the ever rising worldwide demand for energy. Waste incineration and biomass combustion plants can make important contributions in both the short-to-medium and the long term. In the efforts to utilise these sources as efficiently as possible, a number of materials and process control issues are critical and gaseous and deposit corrosion are frequently limiting factors. This paper describes an integrated approach to the understanding of materials behaviour in waste and biomass boilers. The approach involves monitoring the combustion conditions on the grate of boilers in order to determine flue gas conditions that will have an impact on energy recovery as well as plant performance from the materials perspective. Plant monitoring was also carried out using a cooled process probe whose main purpose was to collect solids from the flue gases of a range of power plants. The deposits were then available for use in laboratory and pilot plant corrosion tests. An innovative process sensor instrument is described. From the materials side, the results of a comprehensive study involving the collection of thermodynamic and kinetic data relevant to boiler materials corrosion, and the building of a model enabling the prediction of corrosion behaviour have been described and used for materials selection. This integrated approach is started to enable more efficient materials studies to be carried out and in the same frame, improvements in plant process control to be achieved.
机译：随着提高能源效率和能源供应安全的步伐不断加快，提高垃圾焚烧厂和生物质燃烧厂能源效率的努力越来越受到重视。所有可再生能源对于将满足全球不断增长的能源需求的流程的气候变化的影响降至最低至关重要。垃圾焚烧厂和生物质燃烧厂可以在短期和长期方面做出重要贡献。在努力尽可能有效地利用这些资源的过程中，许多材料和过程控制问题至关重要，而气态和沉积物腐蚀通常是限制因素。本文介绍了一种用于理解废物和生物质锅炉中材料行为的综合方法。该方法涉及监视锅炉炉排上的燃烧条件，以便确定从材料角度来看将对能量回收以及工厂性能产生影响的烟气条件。还使用冷却的过程探针进行了工厂监控，该探针的主要目的是从一系列发电厂的烟气中收集固体。然后，这些沉积物可用于实验室和中试工厂的腐蚀测试。描述了一种创新的过程传感器仪器。从材料方面，已经描述了一项综合研究的结果，该研究涉及与锅炉材料腐蚀有关的热力学和动力学数据的收集，并建立了能够预测腐蚀行为的模型，并将其用于材料选择。开始采用这种集成方法可以进行更有效的材料研究，并且在同一框架内可以实现工厂过程控制方面的改进。

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