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Integrated Power and Chemical Accumulation of High-Temperature Gaseous Waste from Industrial Installations

机译：工业装置产生的高温气态废物的综合动力和化学积累

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Abstract— Electricity generation with the use of secondary energy resources emerging as a by-product of industrial technologies is one of the promising lines for making the Russian power industry more efficient. The secondary energy resources produced during operation of some industrial installations (primarily the heat of high-temperature gaseous waste) have a significant potential for electricity generation. Apart from being efficiently used, this potential can also be further increased by subjecting the thermal and material flows of gaseous waste to integrated power and chemical accumulation on the basis of natural gas endothermic conversion reactions, with the high-temperature gaseous waste serving as an oxidizer and a heat source for the conversion. Mathematical models of industrial installations equipped with conversion reactors for carrying out integrated power and chemical accumulation are developed and investigated. An oxidizer consumption coefficient for the conversion process is used in the models, and the method for calculating it is described. The increase of secondary fuel chemical energy obtained for an industrial fuel installation in comparison with the converted natural gas is quite essential, making around 14%. With such an arrangement, the entire flow of gaseous waste becomes a high-quality secondary fuel. At the same time, the possibilities of decreasing the consumption of oxidizer for the conversion process to the optimal value equal to 1.0 are rather limited: its level should be no less than 3.0. The use of integrated power and chemical accumulation under the conditions of a fuel-free basic-oxygen converter is possible with the oxidizer consumption ratio for the conversion process down to 1.4, a level closer to its optimal value. The possibility to recycle in the integrated power and chemical accumulation process approximately 32% of the heat of gaseous waste with the entire mass flowrate of converter gas transformed into high-quality secondary fuel with a heat capacity of 2155°С is demonstrated. The use of integrated power and chemical accumulation in the basic oxygen furnace technology can make it possible to obtain an essential gain in the electricity generation potential in comparison with the direct use of natural gas for electricity generation purposes.
机译：摘要—利用二次能源资源发电是工业技术的副产品，这是提高俄罗斯电力行业效率的有前途的路线之一。在某些工业设施运行期间产生的二次能源（主要是高温气态废物的热量）具有巨大的发电潜力。除了有效利用之外，还可以通过在天然气吸热转化反应的基础上使气态废物的热流和物质流经受综合功率和化学积累，并以高温气态废物作为氧化剂，进一步提高这种潜力以及用于转换的热源。开发并研究了配备有转化反应器以进行综合动力和化学物质积累的工业装置的数学模型。在模型中使用转换过程的氧化剂消耗系数，并描述了其计算方法。与转化天然气相比，工业燃料装置获得的二次燃料化学能的增加非常重要，约为14％。通过这种布置，气态废物的全部流变成高质量的二次燃料。同时，将用于转化过程的氧化剂的消耗降低至等于1.0的最佳值的可能性受到相当大的限制：其含量应不小于3.0。在无燃料的碱性氧气转化器的条件下，可以使用集成的功率和化学物质积累，将转化过程中的氧化剂消耗比降低至1.4（接近最佳值）。证明了在综合动力和化学积累过程中回收大约32％的气态废物热量的可能性，转化气的总质量流量转化为2155°С热容量的高质量二次燃料。与将氧气直接用于发电目的相比，在基本的氧气炉技术中使用集成的功率和化学物质累积可以在发电潜力中获得重要的收益。

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