依托企业现有煤焦制气装置,开发了一套浮渣-污泥协同气化资源化利用技术。通过设计多组适应不同产出工况的定制化掺烧比例,并结合预处理与混浆气化耦合工艺,实现了对污水处理场浮渣与污泥的全量、稳定消纳。该技术将危废在高温下转化为高价值合成气(CO+H₂),无需新增核心设备,且运行稳定、环保达标。工业应用结果表明,该技术可处理浮渣含油率35%~42%、污泥含水率85%的复杂物料,年消纳危废1.58万t,替代燃料煤3.95万t。基于2025年市场价核算,年新增综合经济效益达1.83亿元,投入产出比超过1∶8。本研究为大型炼化企业解决高负荷污水处理系统固废出路、实现绿色低碳转型提供了切实可行的技术路径与实践范本。

This paper develops a synergistic gasification technology for the resource utilization of scum and sludge,leveraging an existing coal-coke gasification unit.By designing multiple customized co-processing ratios adaptable to different output conditions and integrating pretreatment with slurry-mixing gasification,the technology achieves complete and stable consumption of scum and sludge from the wastewater treatment plant.This process converts hazardous waste into high-value synthesis gas (CO+H₂) at high temperatures without requiring new core equipment,ensuring stable operation and environmental compliance.Industrial application results demonstrate that the technology can effectively treat complex materials—scum with 35%-42% oil content and sludge with 85% moisture content—achieving an annual hazardous waste disposal capacity of 15 800 tons and replacing 39,500 tons of fuel coal.Based on 2025 market prices,the calculated annual incremental comprehensive economic benefit reached 183 million yuan,with an input-output ratio exceeding 1∶8.This study provides a feasible technical pathway and a practical paradigm for large-scale refining enterprises to resolve the solid waste disposal challenges in high-load wastewater treatment systems and to achieve green and low-carbon transformation.