柔性氧变压吸附装置液化氧储存的潜力

Q3 Chemical Engineering

Chemical engineering transactions Pub Date : 2021-11-15 DOI:10.3303/CET2188081

R. Šulc, P. Ditl

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引用次数: 0

摘要

变压吸附(PSA)装置被广泛用作氧源。与需要数小时或数天启动时间的低温空分技术相比，启动时间只需几分钟是PSA技术不可否认的优势。可再生能源电力份额的增加导致了电价的日内波动。这些波动可能是改善工厂经济和/或以液化产品的形式积累电力的机会。本文的目的是证明一个灵活的PSA单元连接到一个小的氧燃料燃烧单元的可能性。分析了两种方案:1)在电价高峰时段供应液氧，2)液氧储能(LOES)。氧气液化所需的冷能将利用大型空分装置(ASU)输送的液化氮(LIN)获得。对捷克共和国、德意志联邦共和国和丹麦王国进行了分析。这些国家的能源结构差别很大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The Potential of Liquefied Oxygen Storage for Flexible Oxygen-Pressure Swing Adsorption Unit

The pressure swing adsorption (PSA) units are widely used as an oxygen source. Start-up time taking minutes is an undeniable advantage of PSA technology compared to cryogenic air separation start-up time taking hours or days. The increasing share of renewable electricity causes intraday electricity price fluctuations. These fluctuations can be an opportunity to improve the economy of a plant and/or to accumulate electricity in the form of liquefied products. This paper aims to demonstrate the possibility of a flexible PSA unit connected to a small oxy-fuel combustion unit. Two options were analyzed: i) LOX supply at electricity price peak, and ii) liquid oxygen energy storage (LOES). The cold energy needed for oxygen liquefaction will be obtained utilizing liquefied nitrogen (LIN) delivered from a large air separation unit (ASU). The analysis was carried out for the Czech Republic, the Federal Republic of Germany, and the Kingdom of Denmark. These countries differ significantly in the energy mix.

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来源期刊

Chemical engineering transactions Chemical Engineering-Chemical Engineering (all)

CiteScore

1.40

自引率

0.00%

发文量

审稿时长

6 weeks

期刊介绍： Chemical Engineering Transactions (CET) aims to be a leading international journal for publication of original research and review articles in chemical, process, and environmental engineering. CET begin in 2002 as a vehicle for publication of high-quality papers in chemical engineering, connected with leading international conferences. In 2014, CET opened a new era as an internationally-recognised journal. Articles containing original research results, covering any aspect from molecular phenomena through to industrial case studies and design, with a strong influence of chemical engineering methodologies and ethos are particularly welcome. We encourage state-of-the-art contributions relating to the future of industrial processing, sustainable design, as well as transdisciplinary research that goes beyond the conventional bounds of chemical engineering. Short reviews on hot topics, emerging technologies, and other areas of high interest should highlight unsolved challenges and provide clear directions for future research. The journal publishes periodically with approximately 6 volumes per year. Core topic areas: -Batch processing- Biotechnology- Circular economy and integration- Environmental engineering- Fluid flow and fluid mechanics- Green materials and processing- Heat and mass transfer- Innovation engineering- Life cycle analysis and optimisation- Modelling and simulation- Operations and supply chain management- Particle technology- Process dynamics, flexibility, and control- Process integration and design- Process intensification and optimisation- Process safety- Product development- Reaction engineering- Renewable energy- Separation processes- Smart industry, city, and agriculture- Sustainability- Systems engineering- Thermodynamic- Waste minimisation, processing and management- Water and wastewater engineering