Abstract Steam generation of the industrial steam networks through an internal process driven by a renewable energy can be extremely demanding. Conventionally, fossil fuels are used for this aim since a high-temperature heat source is needed to reliability drive a steam network. To address this demand and decrease environmental penalty associate with the conventional methods, an innovative and high-efficient biomass-driven cogeneration system is proposed for the real need of the utility systems by considering a suitable total-site heat recovery and distribution mechanism. The proposed cogeneration system consists of a biomass gasifier, a gas turbine cycle, a solid oxide fuel cell, and a steam network unit. In comparison with the previous cogeneration systems, the steam required for the gasification process in the gasifier is supplied by some portion of the steam generated at the last stage of the steam network unit. Also, natural gas is used as an auxiliary fuel to satisfy the surplus fuel required for the steam generation. A new methodology is introduced to use a biomass-driven cogeneration system as a primary steam generator of the steam network unit instead of using a conventional boiler or gas turbine with heat recovery steam generator. The proposed system produces additional heating load of 235.26 MW in comparison with the topping system (i.e., combined solid oxide fuel cell/gas turbine system). Integrating the steam network unit also increased the energy efficiency of the basic system from 20.05% to 54.35% and the net power from 47.55 MW to 72.3 MW. The proposed integrated system can be regarded as a promising futuristic layout for simultaneous steam and power generation of the petrochemical industries.

中文翻译：

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一种由生物质驱动的新型热电联产系统，用于全站点公用事业应用

摘要 通过由可再生能源驱动的内部过程来产生工业蒸汽网络的蒸汽可能非常苛刻。通常，化石燃料用于此目的，因为需要高温热源来可靠地驱动蒸汽网络。为了解决这一需求并减少与传统方法相关的环境损失，通过考虑合适的全站热回收和分配机制，针对公用事业系统的实际需求提出了一种创新且高效的生物质驱动热电联产系统。拟议的热电联产系统由生物质气化炉、燃气轮机循环、固体氧化物燃料电池和蒸汽网络单元组成。与之前的热电联产系统相比，气化炉气化过程所需的蒸汽由蒸汽网络单元最后阶段产生的部分蒸汽供应。此外，天然气用作辅助燃料以满足产生蒸汽所需的剩余燃料。引入了一种新的方法，使用生物质热电联产系统作为蒸汽网络单元的主蒸汽发生器，而不是使用带有热回收蒸汽发生器的传统锅炉或燃气轮机。与顶部系统（即组合固体氧化物燃料电池/燃气轮机系统）相比，提议的系统产生了 235.26 MW 的额外热负荷。集成蒸汽网络单元还使基础系统的能效从20.05%提高到54.35%，净功率从47.55 MW提高到72.3 MW。