Synergistic co-steam gasification of biomass and refuse-derived fuel: A path to enhanced gasification performance

IF 6.7 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Environmental Technology & Innovation Pub Date : 2024-07-10 DOI:10.1016/j.eti.2024.103745

Jianjun Cai , Lingxia Zhu , Jianbo Yang , Minjia Guo , Mingkang Fang , Shengfeng Yao

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Abstract

The co-steam gasification of biomass (straw) and Refuse-Derived Fuel (RDF) presents a promising pathway for sustainable waste management and renewable energy production, with significant implications for environmental protection. This study investigates the co-gasification of straw and RDF to optimize syngas production and minimize undesired by-products. The optimization of the S/M ratio and gasification temperature is crucial for efficient RDF gasification. The optimal S/M ratio and temperature balance syngas yield, quality (LHV), and process efficiency (carbon conversion efficiency and cold gas efficiency), while minimizing environmental hazards from solid residues. The carbon conversion efficiency of co-gasification of RDF increased by 12.7 % at the S/M 0 f 0.75 and gasification temperature of 800°C, a significant improvement compared to the efficiencies observed for the separate gasification of straw and RDF. Additionally, the gas yield and the cold gas efficiency were increased by 14.43 % and 26.42 % compared to the separate gasification processes, respectively. These results demonstrate the synergistic effects of co-gasifying straw and RDF, enhancing gasification performance and reducing tar formation. The study underscores the potential of co-steam gasification of straw and RDF as a technologically viable and environmentally friendly approach to waste-to-energy conversion, emphasizing the importance of operational optimization for achieving superior energy recovery, resource efficiency, and reduced environmental impact.

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生物质和垃圾衍生燃料的协同共蒸气化：提高气化性能的途径

生物质（秸秆）和垃圾衍生燃料（RDF）的共蒸汽气化为可持续废物管理和可再生能源生产提供了一条前景广阔的途径，对环境保护具有重要意义。本研究调查了秸秆和垃圾衍生燃料的联合气化，以优化合成气的生产，并最大限度地减少不良副产品。S/M 比率和气化温度的优化对于 RDF 的高效气化至关重要。最佳 S/M 比率和温度可平衡合成气产量、质量（LHV）和工艺效率（碳转化效率和冷气效率），同时最大限度地减少固体残留物对环境的危害。在 S/M 比为 0 f 0.75、气化温度为 800°C 的条件下，RDF 协同气化的碳转化效率提高了 12.7%，与秸秆和 RDF 单独气化的效率相比有了显著提高。此外，与单独气化工艺相比，气体产量和冷气效率分别提高了 14.43% 和 26.42%。这些结果表明了秸秆和 RDF 共同气化的协同效应，既提高了气化性能，又减少了焦油的形成。该研究强调了秸秆和 RDF 的共蒸汽气化作为一种技术上可行且环保的废物能源转化方法的潜力，同时强调了优化操作对于实现卓越的能源回收、资源效率和减少环境影响的重要性。

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来源期刊

Environmental Technology & Innovation Environmental Science-General Environmental Science

CiteScore

14.00

自引率

4.20%

发文量

435

审稿时长

74 days

期刊介绍： Environmental Technology & Innovation adopts a challenge-oriented approach to solutions by integrating natural sciences to promote a sustainable future. The journal aims to foster the creation and development of innovative products, technologies, and ideas that enhance the environment, with impacts across soil, air, water, and food in rural and urban areas. As a platform for disseminating scientific evidence for environmental protection and sustainable development, the journal emphasizes fundamental science, methodologies, tools, techniques, and policy considerations. It emphasizes the importance of science and technology in environmental benefits, including smarter, cleaner technologies for environmental protection, more efficient resource processing methods, and the evidence supporting their effectiveness.