循环流化床掺烧油基岩屑过程有机污染物排放及风险评估

张兴岳; 肖海平; 张绪钦; 于刚; 闫大海

doi:10.19805/j.cnki.jcspe.2026.250017

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循环流化床掺烧油基岩屑过程有机污染物排放及风险评估

绿色低碳 | 更新时间：2026-10-10

- 循环流化床掺烧油基岩屑过程有机污染物排放及风险评估
- Emission and Risk Assessment of Organic Pollutants in the Co-combustion Process of Oil-based Cuttings in a Circulating Fluidized Bed
- 动力工程学报 2026年46卷第4期页码：191-197
- 作者机构：
  
  1. 华北电力大学能源动力与机械工程学院,北京,102206
  2. 中国环境科学研究院固体废物污染控制技术研究所,北京,100012
- 作者简介：
  
  张兴岳(2001—),男,山东德州人,硕士研究生,研究方向为固废协同处理。肖海平(通信作者),男,副教授,博士,E-mail:Xiaohaiping@ncepu.edu.cn。
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2026.250017
  中图分类号： X705
- 纸质出版：2026
- 稿件说明：
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张兴岳, 肖海平, 张绪钦, 于刚, 闫大海. 循环流化床掺烧油基岩屑过程有机污染物排放及风险评估[J]. 动力工程学报, 2026, 46(4): 191-197.
张兴岳, 肖海平, 张绪钦, 于刚, 闫大海. 循环流化床掺烧油基岩屑过程有机污染物排放及风险评估[J]. 动力工程学报, 2026, 46(4): 191-197. DOI： 10.19805/j.cnki.jcspe.2026.250017.

DOI： 10.19805/j.cnki.jcspe.2026.250017

摘要

为研究掺烧油基岩屑过程有机污染物的排放特性

评估该工艺的环境风险及健康风险

在600 MW循环流化床锅炉上进行掺烧试验。分析了产物中有机污染物排放浓度

并利用累计终身癌症风险模型及健康标准模型评估健康风险。试验结果表明:各工况下多环芳烃(PAHs)及二噁英(PCDD/Fs)的排放浓度极低。掺烧油基岩屑后

由于炉内氯含量的增加

烟气中PAHs浓度降低29%。相较于低负荷工况

高负荷掺烧工况下烟气中PAHs浓度升高

高温促进了PAHs的生成。相较于空白工况

低、高负荷掺烧工况烟气中二噁英毒性当量浓度分别降低25%和60%

油基岩屑硫分含量较高

不利于二口恶英生成。健康风险评估结果表明

高负荷掺烧工况下飞灰中PAHs会对各年龄段人群造成潜在致癌风险;飞灰中二口恶英致癌与非致癌风险均低于相关限值。

Abstract

To investigate the emission characteristics of organic pollutants during the co-combustion of oil-based cuttings and evaluate the environmental and health risks associated with this process

co-combustion experiments were carried out on a 600 MW circulating fluidized bed boiler. The emission concentrations of organic pollutants in the products were analyzed

and health risks were assessed using the incremental lifetime cancer risk model and the health standard model. Experimental results reveal that the emission concentrations of polycyclic aromatic hydrocarbons (PAHs) and dioxins (PCDD/Fs) are extremely low under all operating conditions. After co-combustion with oil-based cuttings

the increased chlorine content in the furnace lead to a 29% reduction in PAHs concentrations in the flue gas. Compared with low-load operating conditions

higher PAH concentrations are observed in the flue gas under high-load co-combustion conditions

as the elevated temperature promotes the formation of PAHs. Relative to the baseline condition

the toxic equivalent concentrations of dioxins in the flue gas decrease by 25% and 60% under low- and high-load co-combustion conditions

respectively

as the higher sulfur content in oil-based cuttings is found to be unfavorable for dioxin formation. The health risk assessment results indicate that

under high-load co-combustion conditions

PAHs in the fly ash could pose a potential carcinogenic risk to individuals of all age groups

while the carcinogenic and non-carcinogenic risks associated with dioxins in the fly ash remain below the relevant threshold values.

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references

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