Energy and Material Recovery from Bone Waste: Steam Gasification for Biochar and Syngas Production in a Circular Economy Framework

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy Pub Date : 2025-04-15 DOI:10.1016/j.energy.2025.136179

Agata Mlonka-Mędrala , Szymon Sobek , Mariusz Wądrzyk , Sebastian Werle , Gabriela Ionescu , Cosmin Mărculescu , Aneta Magdziarz

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引用次数: 0

Abstract

The food industry generates large amounts of bone waste, which presents both environmental and economic challenges. This study investigates the potential of bone waste as a feedstock for the production of energy carriers (syngas) and biochar through steam gasification, contributing to sustainable energy and circular economy strategies. The raw feedstock characterised by low carbon (<20%) and high ash content (with large amounts of Ca and P) was subjected to steam gasification at 800 °C, 900 °C and 1000 °C to obtain the biochar developed at the surface. Biochar generated at 800 °C exhibited the highest surface area and micropore volume, making it ideal for catalysis or energy storage purposes. This biochar was then applied to the Py-GC-MS of biomass to investigate its catalytic properties. Kinetic analysis using isoconversional methods revealed that the addition of bone-derived biochar to biomass reduced the apparent activation energy in the primary devolatilization stage, facilitating a more efficient conversion process. These findings highlight the feasibility of using bone waste as a resource for the development of advanced biofuels and catalysts, aligning with the sustainability goals and waste valorisation principles.

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从骨废物中回收能源和材料：循环经济框架下生物炭和合成气生产的蒸汽气化

食品工业产生了大量的骨废物，这对环境和经济都提出了挑战。本研究探讨了骨废物作为通过蒸汽气化生产能源载体（合成气）和生物炭的原料的潜力，为可持续能源和循环经济战略做出贡献。将低碳（20%）和高灰分（含有大量Ca和P）的原料在800°C、900°C和1000°C下进行蒸汽气化，得到表面发育的生物炭。在800°C下生成的生物炭具有最高的表面积和微孔体积，使其成为催化或储能目的的理想选择。然后将该生物炭应用于生物质的Py-GC-MS以研究其催化性能。利用等转化方法进行的动力学分析表明，向生物质中添加骨源性生物炭降低了初级脱挥发阶段的表观活化能，促进了更有效的转化过程。这些发现强调了利用骨废物作为开发先进生物燃料和催化剂的资源的可行性，与可持续性目标和废物增值原则保持一致。

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来源期刊

Energy 工程技术-能源与燃料

CiteScore

15.30

自引率

14.40%

发文量

审稿时长

14.2 weeks

期刊介绍： Energy is a multidisciplinary, international journal that publishes research and analysis in the field of energy engineering. Our aim is to become a leading peer-reviewed platform and a trusted source of information for energy-related topics. The journal covers a range of areas including mechanical engineering, thermal sciences, and energy analysis. We are particularly interested in research on energy modelling, prediction, integrated energy systems, planning, and management. Additionally, we welcome papers on energy conservation, efficiency, biomass and bioenergy, renewable energy, electricity supply and demand, energy storage, buildings, and economic and policy issues. These topics should align with our broader multidisciplinary focus.