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Journal articles on the topic 'Cryogenic air separation'

Author: Grafiati

Published: 27 September 2024

Last updated: 31 July 2025

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1

Ionita, Claudia, Elena-Eugenia Vasilescu, Camelia Stanciu, Horatiu Pop, and Lucretia Popa. "Optimization of the air separation process in single stage cryogenic units." Technium: Romanian Journal of Applied Sciences and Technology 14 (October 9, 2023): 14–17. http://dx.doi.org/10.47577/technium.v14i.9666.

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The industrial use of cryogenic air separation units started more than 130 years ago. Cryogenic air separation units produce oxygen, pure nitrogen and argon in liquid and/or gaseous state. Different configurations of these cryogenic plants lead to different quantities of gas and liquid products. In addition, product purity is also affected by the proposed scheme. As a result, the paper analyzes different variants of installations for the separation of binary gas mixtures based on the Linde process. By comparing energy indices and constructive considerations, the separation plant with external

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2

Xiong, Yong Qiang, and Ben Hua. "Simulation and Analysis of Cryogenic Air Separation Process with LNG Cold Energy Utilization." Advanced Materials Research 881-883 (January 2014): 653–58. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.653.

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In this paper, a cryogenic air separation process with LNG cold energy utilization is proposed to produce liquid nitrogen and high pressure pure oxygen gas economically. To reduce the electric energy consumption of air separation products, liquid nitrogen have been produced by condensing the separated pure nitrogen gas with LNG cold energy utilization, and the recycled nitrogen is served to transfer cold energy from LNG stream to cool off air stream in the proposed cryogenic air separation process. The specifications of streams and the major equipments of the air separation process are simulat

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3

Parulekar, Prasad J. "Chemical Plant Utility – Nitrogen System Design." International Journal for Research in Applied Science and Engineering Technology 9, no. 11 (2021): 1560–67. http://dx.doi.org/10.22214/ijraset.2021.39047.

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Abstract: The study is been conducted to understand the different techniques to separate nitrogen from atmospheric air. Separation of nitrogen takes place by following techniques: Cryogenic air separation, Pressure swing adsorption and Membrane separation technique. Cryogenic air separation operates at a very low temperature, which uses the principle of rectification to separate nitrogen at a very high purity (99.999%). Pressure swing adsorption rely on the fact that higher the pressure, more the gas is adsorbed which results in high purity (95-99.99%) of nitrogen. Membrane separation technolo

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4

Cornelissen, R. L., and G. G. Hirs. "Exergy analysis of cryogenic air separation." Energy Conversion and Management 39, no. 16-18 (1998): 1821–26. http://dx.doi.org/10.1016/s0196-8904(98)00062-4.

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5

Cheung, Harry. "Moderate-pressure cryogenic air separation process." Gas Separation & Purification 5, no. 1 (1991): 25–28. http://dx.doi.org/10.1016/0950-4214(91)80045-7.

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6

Dutta, T., K. P. Sinhamahapatra, and S. S. Bandyopadhyay. "CFD Analysis of Energy Separation in Ranque-Hilsch Vortex Tube at Cryogenic Temperature." Journal of Fluids 2013 (November 14, 2013): 1–14. http://dx.doi.org/10.1155/2013/562027.

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Study of the energy separation phenomenon in vortex tube (VT) at cryogenic temperature (temperature range below 123 K) has become important because of the potential application of VT as in-flight air separator in air breathing propulsion. In the present study, a CFD model is used to simulate the energy separation phenomenon in VT with gaseous air at cryogenic temperature as working fluid. Energy separation at cryogenic temperature is found to be considerably less than that obtained at normal atmospheric temperature due to lower values of inlet enthalpy and velocity. Transfer of tangential shea

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7

Khalel, Zeinab A. M., Ali A. Rabah, and Taj Alasfia M. Barakat. "A New Cryogenic Air Separation Process with Flash Separator." ISRN Thermodynamics 2013 (June 27, 2013): 1–4. http://dx.doi.org/10.1155/2013/253437.

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A new cryogenic air separation process with flash separator is developed. A flash separator is added to the conventional double-column cryogenic air separation process. The flash separator is used to replace the turbine required to recover a portion of the energy in the double-column air separation process. The flash separator served dual purposes of throttling and separation. Both the conventional and the new processes are simulated using Aspen Plus version 11.1 the model air flow rate and compositions are taken as 50000 Nm3/h of air at standard conditions of 1 atm and 25°C and feed compositi

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8

Miller, Jason, William L. Luyben, Paul Belanger, Stephane Blouin, and Larry Megan. "Improving Agility of Cryogenic Air Separation Plants." Industrial & Engineering Chemistry Research 47, no. 2 (2008): 394–404. http://dx.doi.org/10.1021/ie070975t.

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9

Hamayun, Muhammad Haris, Naveed Ramzan, Murid Hussain, and Muhammad Faheem. "Evaluation of Two-Column Air Separation Processes Based on Exergy Analysis." Energies 13, no. 23 (2020): 6361. http://dx.doi.org/10.3390/en13236361.

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Cryogenic air separation processes are widely used for the large-scale production of nitrogen and oxygen. The most widely used design for this process involves two distillation columns operating at different pressures. This work focuses on the selection of suitable cryogenic air separation process by evaluating seven alternative designs of the two-column air separation process based on detailed exergy analysis. The feed conditions (500 tons/h, and 50% relative humidity of air), product purities (99 mole% for both nitrogen and oxygen), and operational conditions (pressures of both distillation

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10

Rinker, Garrett. "Minimum work associated with separating nitrogen from air: An exergy analysis." F1000Research 13 (March 1, 2024): 158. http://dx.doi.org/10.12688/f1000research.145337.1.

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Background Nitrogen is essential for a variety of industries, including heat treatment, laser cutting, fire protection, and food packaging. Many companies in these industries obtain nitrogen via on-premises air separation processes. The three main processes for separating nitrogen from ambient air are cryogenic distillation, membrane separation, and pressure-swing adsorption (PSA). Improvements to these processes will likely focus on increasing efficiency, resulting in reduced environmental impact owing to less electrical power demand and opportunities for economic incentives. Regardless of th

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11

Bucsa, Sorin, Alexandru Serban, Mugur C. Balan, et al. "Exergetic Analysis of a Cryogenic Air Separation Unit." Entropy 24, no. 2 (2022): 272. http://dx.doi.org/10.3390/e24020272.

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This case study analyzes a cryogenic air separation unit (ASU) with a production of V˙O2=58,300 [m3Nh] of gaseous oxygen with a concentration greater than 98.5%, operating in Romania on a steel plant platform. The goal of the paper is to provide an extensive model of exergetic analysis that could be used in an optimization procedure when decisional parameters are changed or structural design modifications are implemented. For each key part of the Air Separation Unit, an exergetic product and fuel were defined and, based on their definition, the coefficient of performance of each functional zon

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12

Ye, Pengcheng, Erik Sjöberg, and Jonas Hedlund. "Air separation at cryogenic temperature using MFI membranes." Microporous and Mesoporous Materials 192 (July 2014): 14–17. http://dx.doi.org/10.1016/j.micromeso.2013.09.016.

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13

van der Ham, L. V., and S. Kjelstrup. "Exergy analysis of two cryogenic air separation processes." Energy 35, no. 12 (2010): 4731–39. http://dx.doi.org/10.1016/j.energy.2010.09.019.

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14

Schoofs, Gregory R., and P. Petit. "Repressurization of adsorption purifiers for cryogenic air separation." Chemical Engineering Science 48, no. 4 (1993): 753–60. http://dx.doi.org/10.1016/0009-2509(93)80141-c.

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15

Cao, Yanan, Christopher L. E. Swartz, and Jesus Flores‐Cerrillo. "Preemptive dynamic operation of cryogenic air separation units." AIChE Journal 63, no. 9 (2017): 3845–59. http://dx.doi.org/10.1002/aic.15753.

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16

Voronetskiy, A. V. "Comparative analysis of operational indicators of air separation plants." Glavnyj mekhanik (Chief Mechanic), no. 3 (February 25, 2022): 188–202. http://dx.doi.org/10.33920/pro-2-2203-03.

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The article gives tips on how to achieve real savings in electricity costs during the operation of an oxygen station, determined by the speed of performance regulation and the launch of cryogenic and adsorption technologies. A comparative analysis of obtaining 40,000 Nm³ /hr of oxygen with a purity of at least 93% and a pressure of 0.5 MPa at the output of the oxygen station with round-the-clock and year-round operation was carried out. The optimal solution to the problem under consideration is the use of cryogenic technology. The advantage of adsorption technology, compared to cryogenic one,

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17

Wojcieszak, Paweł. "Exergy Analysis of Liquid Nitrogen Power Cycles." EPJ Web of Conferences 201 (2019): 01004. http://dx.doi.org/10.1051/epjconf/201920101004.

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Nitrogen is by-product from cryogenic air separation processes used for oxygen production for metallurgy and oxygen-enriched combustion purposes. If the gases are delivered from air separation unit (ASU) in liquid phase, liquid nitrogen (LN2) can be used as energy accumulator for stabilization of electrical grid system with large share of renewable energy sources. When the energy demand is high and not enough electricity is generated in power plants, energy accumulated in LN2 may be recovered in a cryogenic power cycle. In this research complete exergy analysis of liquid nitrogen direct expans

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18

Berdowska, Sylwia, and Anna Skorek-Osikowska. "Technology of oxygen production in the membranecryogenic air separation system for a 600 MW oxy-type pulverized bed boiler." Archives of Thermodynamics 33, no. 3 (2012): 61–72. http://dx.doi.org/10.2478/v10173-012-0018-8.

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Abstract In this paper the results of the thermodynamic analysis of the oxy-combustion type pulverized bed boiler integrated with a hybrid, membrane- cryogenic oxygen separation installation are presented. For the calculations a 600 MW boiler with live steam parameters at 31.1 MPa /654.9 oC and reheated steam at 6.15 MPa/672.4 oC was chosen. In this paper the hybrid membrane-cryogenic technology as oxygen production unit for pulverized bed boiler was proposed. Such an installation consists of a membrane module and two cryogenic distillation columns. Models of these installations were built in

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19

Xu, Zuhua, Jun Zhao, Xi Chen, et al. "Automatic load change system of cryogenic air separation process." Separation and Purification Technology 81, no. 3 (2011): 451–65. http://dx.doi.org/10.1016/j.seppur.2011.08.024.

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20

Ye, Pengcheng, Danil Korelskiy, Mattias Grahn, and Jonas Hedlund. "Cryogenic air separation at low pressure using MFI membranes." Journal of Membrane Science 487 (August 2015): 135–40. http://dx.doi.org/10.1016/j.memsci.2015.03.063.

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21

Mandler, J. A., D. R. Vinson, and N. Chatterjee. "Dynamic Modelling and Control of Cryogenic AIR Separation Plants." IFAC Proceedings Volumes 22, no. 8 (1989): 267–73. http://dx.doi.org/10.1016/s1474-6670(17)53367-4.

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22

Agrawal, Rakesh, and Robert M. Thorogood. "Production of medium pressure nitrogen by cryogenic air separation." Gas Separation & Purification 5, no. 4 (1991): 203–9. http://dx.doi.org/10.1016/0950-4214(91)80025-z.

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23

Zhu, Yu, Sean Legg, and Carl D. Laird. "Optimal design of cryogenic air separation columns under uncertainty." Computers & Chemical Engineering 34, no. 9 (2010): 1377–84. http://dx.doi.org/10.1016/j.compchemeng.2010.02.007.

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24

Darling, Robert M., and Zhiwei Yang. "Electrochemical Air Separation and Emergency Power Fuel Cell for Aircraft." ECS Meeting Abstracts MA2022-02, no. 50 (2022): 2561. http://dx.doi.org/10.1149/ma2022-02502561mtgabs.

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The crash of TWA Flight 800 in July 1996 was attributed to an explosion in the center fuel tank. Since then, commercial airliners have been equipped with inerting systems to prevent explosive mixtures of air and kerosene vapor from forming in fuel tanks. The incumbent technology is based on hollow-fiber membrane (HFM) separation modules that split air into an oxygen-enriched air (OEA) stream and a nitrogen- enriched air (NEA) stream. The nitrogen enriched air used to inert kerosene contains less than 12% oxygen. Other methods for separating air like cryogenic distillation and pressure swing ab

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25

Alyaseen, Nazar Oudah Mousa, Salem Mehrzad, and Mohammad Reza Saffarian. "Modeling and Design of a Multistream Plate-Fin Heat Exchanger in the Air Separation Units by Pinch Technology." International Journal of Chemical Engineering 2023 (November 30, 2023): 1–16. http://dx.doi.org/10.1155/2023/9204268.

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Recent years have seen considerable advancement in cryogenic technology. Air separation devices have used the cold box with heat exchanger plate-fin (PFHE) in numerous applications. Cryogenic technologies are used in many industrial processes to recover heat and reduce energy consumption. The multistream plate-fin heat exchanger (MSPFHE) is heavily utilized in the air separation plant’s (ASU) design. The plate-fin heat exchanger, one of the most important applications in the cryogenic industry, is the focus of the current investigation. The air entering this operation has been cooled by utiliz

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26

Khalel, Zeinab A. M. "Proposed Transformation Flow Sheet of a Single Column Cryogenic Air Separation Process Utilizing LNG Cold Energy." East African Scholars Journal of Engineering and Computer Sciences 5, no. 3 (2022): 32–40. http://dx.doi.org/10.36349/easjecs.2022.v05i03.001.

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In this study a transformation flow sheet of a single column cryogenic air separation is proposed, the air separation process utilizes the LNG re-gasification cold energy, the transformation flow sheet shows the main actions happens in each unit operation in the process, these action are whether desired, undesired, corrective or transport transformation, this transformation flow sheet helps for better understanding of the process and also helps to investigate the weakness and improving the design.

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27

Quarshie, Anthony W. K., José Matias, and Christopher L. E. Swartz. "Economic Model Predictive Control for Cryogenic Air Separation Unit Startup." IFAC-PapersOnLine 58, no. 14 (2024): 761–66. http://dx.doi.org/10.1016/j.ifacol.2024.08.429.

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28

Misra, Shamik, Mangesh Kapadi, Ravindra D. Gudi, and R. Srihari. "Energy-Efficient Production Scheduling of a Cryogenic Air Separation Plant." Industrial & Engineering Chemistry Research 56, no. 15 (2017): 4399–414. http://dx.doi.org/10.1021/acs.iecr.6b04585.

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29

Vorob'ev, P. V., O. V. Miller, and A. P. Cherepanov. "Sibkriotekhnika's cryogenic equipment in technologies that use air-separation products." Chemical and Petroleum Engineering 31, no. 7 (1995): 343–45. http://dx.doi.org/10.1007/bf01150272.

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30

Wankat, Phillip C., and Kyle P. Kostroski. "Hybrid Membrane-Cryogenic Distillation Air Separation Process for Oxygen Production." Separation Science and Technology 46, no. 10 (2011): 1539–45. http://dx.doi.org/10.1080/01496395.2011.577497.

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31

Fu, Chao, and Truls Gundersen. "Recuperative vapor recompression heat pumps in cryogenic air separation processes." Energy 59 (September 2013): 708–18. http://dx.doi.org/10.1016/j.energy.2013.06.055.

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32

Schmidt, William P., Karen S. Winegardner, Martin Dennehy, and Howard Castle-Smith. "Safe design and operation of a cryogenic air separation unit." Process Safety Progress 20, no. 4 (2001): 269–79. http://dx.doi.org/10.1002/prs.680200409.

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33

Ye, Bicui, Shufei Sun, and Zheng Wang. "Potential for Energy Utilization of Air Compression Section Using an Open Absorption Refrigeration System." Applied Sciences 12, no. 13 (2022): 6373. http://dx.doi.org/10.3390/app12136373.

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In this paper, an open absorption refrigeration system is proposed to recover part of the waste compression heat while producing cooling capacity to further cool the compressed air itself. The self-utilization of the compression waste heat can significantly reduce the energy consumption of air compression, and hence increase the energy efficiency of the cryogenic air separation unit. To illuminate the energy distribution and energy conversion principle of the open absorption refrigerator-assisted air compression section, a thermodynamic model is built and the simulation work conducted based on

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34

Leiva, C. A., D. A. Poblete, T. L. Aguilera, C. A. Acuña, and F. J. Quintero. "Air Separation Units (ASUs) Simulation Using Aspen Hysys® at Oxinor I of Air Liquid Chile S.A Plant." Polish Journal of Chemical Technology 22, no. 1 (2020): 10–17. http://dx.doi.org/10.2478/pjct-2020-0003.

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AbstractThe method used to extract copper from its ores depends on the nature of the ore. The main process currently to separate copper from sulphide ores is the smelting process. The concentrated ore is heated strongly with silicon dioxide (silica), calcium carbonate and oxygen enriched air in a furnace or series of furnaces which is carried out using the injection of the air for oxidation the Fe and Si present in the raw material. Oxygen can be produced using several different methods. One of these methods is Air separation process, which separates atmospheric air into its primary components

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35

Fu, Qian, Yasuki kansha, Chunfeng Song, Yuping Liu, Masanori Ishizuka, and Atsushi Tsutsumi. "An Advanced Cryogenic Air Separation Process Based on Self-heat Recuperation for CO2 Separation." Energy Procedia 61 (2014): 1673–76. http://dx.doi.org/10.1016/j.egypro.2014.12.189.

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36

Mitovski, Milance, and Aleksandra Mitovski. "Efficiency of the process of cryogenic air separation into the components." Chemical Industry 63, no. 5 (2009): 397–405. http://dx.doi.org/10.2298/hemind0905397m.

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The separation process of atmospheric air into its components by means of cryogenic low-pressure procedure, which takes place in the Oxygen plant in the Copper Mining and Smelting Complex, yields various products of different quantities and purities. Proper assessment of the energy consumption, hence assignments production cost of individual products may present considerable problem. For that goal, the least invested technical operation was adopted as criteria, and was restrained for all costs of production and distribution of specific energy. Case study was carried out in the Oxygen factory b

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37

Wimer, John G., Dale Keairns, Edward L. Parsons, and John A. Ruether. "Integration of Gas Turbines Adapted for Syngas Fuel With Cryogenic and Membrane-Based Air Separation Units: Issues to Consider for System Studies." Journal of Engineering for Gas Turbines and Power 128, no. 2 (2005): 271–80. http://dx.doi.org/10.1115/1.2056535.

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The purpose of this paper is to aid systems analysts in the design, modeling, and assessment of advanced, gasification-based power generation systems featuring air separation units (ASUs) integrated with gas turbines adapted for syngas fuel. First, the fundamental issues associated with operating a gas turbine on syngas will be reviewed, along with the motivations for extracting air from the turbine-compressor and/or injecting nitrogen into the turbine expander. Configurations for nitrogen-only and air-nitrogen ASU integration will be described, including the benefits and drawbacks of each. Cr

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38

Zhang, Xiao-bin, Jian-ye Chen, Lei Yao, Yong-hua Huang, Xue-jun Zhang, and Li-min Qiu. "Research and development of large-scale cryogenic air separation in China." Journal of Zhejiang University SCIENCE A 15, no. 5 (2014): 309–22. http://dx.doi.org/10.1631/jzus.a1400063.

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39

Kansha, Yasuki, Akira Kishimoto, Tsuguhiko Nakagawa, and Atsushi Tsutsumi. "A novel cryogenic air separation process based on self-heat recuperation." Separation and Purification Technology 77, no. 3 (2011): 389–96. http://dx.doi.org/10.1016/j.seppur.2011.01.012.

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40

Acharya, D., F. Fitch, and R. Jain. "Some Issues in Operating Adsorption Prepurification Systems for Cryogenic Air Separation." Separation Science and Technology 31, no. 16 (1996): 2171–82. http://dx.doi.org/10.1080/01496399608001038.

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41

Pintilie, M., A. Șerban, V. Popa, and C. L. Popa. "Design analysis of low pressure distillation column for cryogenic air separation." IOP Conference Series: Materials Science and Engineering 595 (September 20, 2019): 012023. http://dx.doi.org/10.1088/1757-899x/595/1/012023.

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42

Variny, Miroslav, Dominika Jediná, Miroslav Rimár, Ján Kizek, and Marianna Kšiňanová. "Cutting Oxygen Production-Related Greenhouse Gas Emissions by Improved Compression Heat Management in a Cryogenic Air Separation Unit." International Journal of Environmental Research and Public Health 18, no. 19 (2021): 10370. http://dx.doi.org/10.3390/ijerph181910370.

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Oxygen production in cryogenic air separation units is related to a significant carbon footprint and its supply in the medicinal sphere became critical during the recent COVID-19 crisis. An improved unit design was proposed, utilizing a part of waste heat produced during air pre-cooling and intercooling via absorption coolers, to reduce power consumption. Variable ambient air humidity impact on compressed air dryers’ regeneration was also considered. A steady-state process simulation of a model 500 t h−1 inlet cryogenic air separation unit was performed in Aspen Plus® V11. Comparison of a mode

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43

Bucanovic, Ljubisa, Mihailo Lazarevic, and Srecko Batalov. "The fractional PID controllers tuned by genetic algorithms for expansion turbine in the cryogenic air separation process." Chemical Industry 68, no. 5 (2014): 519–28. http://dx.doi.org/10.2298/hemind130717078b.

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This paper deals with the design of a new algorithm of PID control based on fractional calculus (FC) in production of technical gases, i.e. in a cryogenic air separation process. Production of low pressure liquid air was first introduced by P. L. Kapica and involved expansion in a gas turbine. For application in the synthesis of the control law, for the input temperature and flow of air to the expansion turbine, it is necessary to determine the appropriate differential equations of the cryogenic process of mixing of two gaseous airflows at different temperatures before entrance to the expansio

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44

Chong, Kok Chung, Soon Onn Lai, Hui San Thiam, and Woei Jye Lau. "The Progress of Polymeric Membrane Separation Technique in O2/N2 Separation." Key Engineering Materials 701 (July 2016): 255–59. http://dx.doi.org/10.4028/www.scientific.net/kem.701.255.

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The oxygen air production are generally be achieved by pressure swing adsorption (PSA) and cryogenic distillation. Both of the techniques are able to produce high purity oxygen level which is more than 95% with a production volume of 20 – 300 tons per day. These techniques however required high energy consumption and with the rising cost of energy, membrane separation is a good option as it require relatively low energy requirement. Membrane separation technique is an emerging technique which garners the interest from academia and industry from last decade as an alternative method to produce o

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45

Belikov, Dmitry, Satoshi Sugawara, Shigeyuki Ishidoya, et al. "Three-dimensional simulation of stratospheric gravitational separation using the NIES global atmospheric tracer transport model." Atmospheric Chemistry and Physics 19, no. 8 (2019): 5349–61. http://dx.doi.org/10.5194/acp-19-5349-2019.

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Abstract. A three-dimensional simulation of gravitational separation, defined as the process of atmospheric molecule separation under gravity according to their molar masses, is performed for the first time in the upper troposphere and lower stratosphere. We analyze distributions of two isotopes with a small difference in molecular mass (13C16O2 (Mi=45) and 12C16O2 (Mi=44)) simulated by the National Institute for Environmental Studies (NIES) chemical transport model (TM) with a parameterization of molecular diffusion. The NIES model employs global reanalysis and an isentropic vertical coordina

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46

Haseli, Y., and N. S. Sifat. "Performance modeling of Allam cycle integrated with a cryogenic air separation process." Computers & Chemical Engineering 148 (May 2021): 107263. http://dx.doi.org/10.1016/j.compchemeng.2021.107263.

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47

Rizk, J., M. Nemer, and D. Clodic. "A real column design exergy optimization of a cryogenic air separation unit." Energy 37, no. 1 (2012): 417–29. http://dx.doi.org/10.1016/j.energy.2011.11.012.

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48

Cao, Yanan, Christopher L. E. Swartz, Jesus Flores-Cerrillo, and Jingran Ma. "Dynamic modeling and collocation-based model reduction of cryogenic air separation units." AIChE Journal 62, no. 5 (2016): 1602–15. http://dx.doi.org/10.1002/aic.15164.

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49

Chorowski, Maciej, and Wojciech Gizicki. "Technical and economic aspects of oxygen separation for oxy-fuel purposes." Archives of Thermodynamics 36, no. 1 (2015): 157–70. http://dx.doi.org/10.1515/aoter-2015-0011.

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Abstract Oxy combustion is the most promising technology for carbon dioxide, originated from thermal power plants, capture and storage. The oxygen in sufficient quantities can be separated from air in cryogenic installations. Even the state-of-art air separation units are characterized by high energy demands decreasing net efficiency of thermal power plant by at least 7%. This efficiency decrease can be mitigated by the use of waste nitrogen, e.g., as the medium for lignite drying. It is also possible to store energy in liquefied gases and recover it by liquid pressurization, warm-up to ambien

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50

Cormos, Calin-Cristian. "Techno-Economic Evaluations of Copper-Based Chemical Looping Air Separation System for Oxy-Combustion and Gasification Power Plants with Carbon Capture." Energies 11, no. 11 (2018): 3095. http://dx.doi.org/10.3390/en11113095.

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Energy and economic penalties for CO2 capture are the main challenges in front of the carbon capture technologies. Chemical Looping Air Separation (CLAS) represents a potential solution for energy and cost-efficient oxygen production in comparison to the cryogenic method. This work is assessing the key techno-economic performances of a CLAS system using copper oxide as oxygen carrier integrated in coal and lignite-based oxy-combustion and gasification power plants. For comparison, similar combustion and gasification power plants using cryogenic air separation with and without carbon capture we

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