脱碳一体化氯碱、氯乙烯单体生产:降低成本,具有工业灵活性

IF 13 Q1 ENERGY & FUELS Advances in Applied Energy Pub Date : 2023-09-26 DOI:10.1016/j.adapen.2023.100152
Sverre Stefanussen Foslie , Julian Straus , Brage Rugstad Knudsen , Magnus Korpås
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引用次数: 0

摘要

在可变可再生能源比例较高的电网中,工业需求响应将变得越来越重要,但关于工业电力需求和灵活性将如何随着化学过程脱碳而变化的现有知识有限。在此,我们开发了一个混合整数线性优化模型,用于比较氯-碱联合电解(CAE)和氯乙烯单体(VCM)生产过程中最相关脱碳方案的成本和灵活性。我们将产品和储能相结合,以充分发挥脱碳过程的灵活性潜力。我们的研究结果表明,CAE工艺的灵活操作在技术上是可行的,但由于VCM生产脱碳,内部工艺依赖性受到限制。将能源和产品存储相结合以满足需求,通过在高峰价格时段转移负载,可将运营成本降低4%。PEM电解槽的高产能需要释放氢脱碳方案的全部灵活性潜力,而灵活性较低的直接通电方案显示出降低运营成本的潜力。在不显著增加运营成本的情况下,CAE和VCM联合工艺的完全脱碳似乎很困难。我们的研究强调,通过产品和储能来响应需求,这是一种将增加的成本降至最低的可行途径,也有助于在高价时段大幅减少电力需求。
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Decarbonizing integrated chlor-alkali and vinyl chloride monomer production: Reducing the cost with industrial flexibility

Industrial demand response will become increasingly important in power grids with high shares of variable renewables, yet the existing knowledge on how the industrial electricity demand and flexibility will change with the decarbonization of chemical processes is limited. Here we develop a mixed-integer linear optimization model, which we use to compare the cost and flexibility of the most relevant decarbonization options for the combined chlor-alkali electrolysis (CAE) and vinyl chloride monomer (VCM) production process. We combine product and energy storage to enable the full flexibility potential of the decarbonized process. Our results show that flexible operation of the CAE process is deemed technically possible but limited by internal process dependencies due to decarbonization of the VCM production. Combining energy and product storage for demand response enables up to 4% operational cost reduction by shifting loads during peak price hours. High overcapacity of PEM electrolyzers is required to release the full flexibility potential in the hydrogen based decarbonization option, while the less flexible direct electrification option shows a potential for OPEX reduction. Full decarbonization of the combined CAE and VCM process without increasing operational cost significantly appears difficult. Our study emphasizes demand response through product and energy storages as a viable pathway for minimizing the added cost, and also enables a significant reduction of electric demand in high-price hours.

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来源期刊
Advances in Applied Energy
Advances in Applied Energy Energy-General Energy
CiteScore
23.90
自引率
0.00%
发文量
36
审稿时长
21 days
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