具有碳捕获和储存功能的生物能源
碳捕获和储存(时间表)
环境科学
碳中和
废物管理
污染物
边际减排成本
环境工程
自然资源经济学
环境保护
温室气体
减缓气候变化
工程类
可再生能源
气候变化
经济
化学
有机化学
电气工程
生物
生态学
作者
Ming Ren,Teng Ma,Chen Fang,Xiaorui Liu,Chaoyi Guo,Silu Zhang,Ziqiao Zhou,Yan Zhu,Hancheng Dai,Chen Huang
出处
期刊:Applied Energy
[Elsevier]
日期:2023-01-01
卷期号:329: 120254-120254
被引量:14
标识
DOI:10.1016/j.apenergy.2022.120254
摘要
The cement industry, which contributes to 8 % of global CO2 emissions and a large quantity of air pollutants, plays a pivotal role in achieving the carbon neutrality target. However, the question of how to decarbonize the cement industry toward net-zero emissions and the corresponding environmental impact remains unclear. An integrated assessment framework combining a top-down computable general equilibrium model, a bottom-up technology selection model, and a life-cycle assessment was developed to explore the cement industry’s carbon–neutral pathways and associated environmental impact. Results show that promoting energy-efficient technologies is crucial for reducing CO2 emissions in the short term, which can also significantly reduce air pollutant emissions. Improving energy efficiency contributes to reducing the emissions of SO2, NOx, and PM2.5, by 33 %, 35 %, and 8 %, respectively, by 2030. In the long run, achieving net-zero carbon emissions requires implementation of bioenergy with carbon capture and storage (BECCS) and demand-side mitigation measures. The share of kilns equipped with BECCS would increase to 68–75 % by 2060. Corresponding unit abatement costs of CO2 are 484–676 CNY/tonne CO2. However, BECCS triggers adverse side effects by increasing water consumption and land cover by 7–11 km3 and 3–4 Mha, respectively, in 2060. Thus, China should take full advantage of energy-efficient technologies to co-control CO2 and air pollutant emissions while avoiding negative effects of BECCS.
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