Polygeneration integrates various systems and processes to produce multiple energy and chemical products, optimizing resource allocation and enhancing efficiency while mitigating resource wastage and environmental pollution. Based on the polygeneration coupling biomass pyrolysis, carbon capture and formic acid synthesis technology, it not only enhances the added value and market competitiveness of biomass-derived products but also reduces reliance on carbon monoxide for the production of formic acid. This study proposes a biomass pyrolysis polygeneration system configuration that couples carbon capture and formic acid synthesis processes, and builds an integrated simulation model of the polygeneration system process flow in gPROMS. The simulation results indicate that the system can simultaneously produce electricity, hot water at 60 °C, bio-oil, formic acid, and liquid CO2. The system’s comprehensive energy utilization and exergy efficiency are 47.43 % and 34.54 % respectively. From an economic perspective, the system’s annual net income is 59.14 million RMB, and the investment recovery is 7.78 years. The system configuration and simulation model proposed in this paper can provide theoretical basis and model support for the development and application of biomass pyrolysis polygeneration technology.

中文翻译：

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创新的生物质热解多联产耦合碳捕获和甲酸合成


Polygeneration 整合各种系统和流程，生产多种能源和化工产品，优化资源配置并提高效率，同时减少资源浪费和环境污染。基于多联产耦合生物质热解、碳捕获和甲酸合成技术，不仅提高了生物质衍生产品的附加值和市场竞争力，还减少了生产甲酸对一氧化碳的依赖。本研究提出了一种耦合碳捕获和甲酸合成过程的生物质热解联产系统配置，并在 gPROMS 中构建了联产系统工艺流程的集成仿真模型。仿真结果表明，该系统可以同时产生电力、60 °C 的热水、生物油、甲酸和液态 CO2。该系统的综合能量利用率和用能效率分别为 47.43 % 和 34.54 %。从经济角度来看，该系统的年净收入为 5914 万元，投资回收时间为 7.78 年。本文提出的系统配置和仿真模型可为生物质热解联产技术的开发与应用提供理论依据和模型支持。