Engineering Solutions for CO2 Conversion

Wiley-VCH (Verlag)
  • erschienen am 25. Februar 2021
  • |
  • 496 Seiten
E-Book | ePUB mit Adobe-DRM | Systemvoraussetzungen
978-3-527-34651-6 (ISBN)
A comprehensive guide that offers a review of the current technologies that tackle CO2 emissions

The race to reduce CO2 emissions continues to be an urgent global challenge. "Engineering Solutions for CO2 Conversion" offers a thorough guide to the most current technologies designed to mitigate CO2 emissions ranging from CO2 capture to CO2 utilization approaches. With contributions from an international panel representing a wide range of expertise, this book contains a multidisciplinary toolkit that covers the myriad aspects of CO2 conversion strategies. Comprehensive in scope, it explores the chemical, physical, engineering and economical facets of CO2 conversion.
"Engineering Solutions for CO2 Conversion" explores a broad range of topics including linking CFD and process simulations, membranes technologies for efficient CO2 capture-conversion, biogas sweetening technologies, plasma-assisted conversion of CO2, and much more.

This important resource:

* Addresses a pressing concern of global environmental damage, caused by the greenhouse gases emissions from fossil fuels
* Contains a review of the most current developments on the various aspects of CO2 capture and utilization strategies
* Incldues information on chemical, physical, engineering and economical facets of CO2 capture and utilization
* Offers in-depth insight into materials design, processing characterization, and computer modeling with respect to CO2 capture and conversion

Written for catalytic chemists, electrochemists, process engineers, chemical engineers, chemists in industry, photochemists, environmental chemists, theoretical chemists, environmental officers, "Engineering Solutions for CO2 Conversion" provides the most current and expert information on the many aspects and challenges of CO2 conversion.
1. Auflage
  • Englisch
  • Newark
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  • Deutschland
  • 4
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  • 7 s/w Tabellen, 3 s/w Abbildungen, 4 farbige Abbildungen
  • 15,89 MB
978-3-527-34651-6 (9783527346516)
weitere Ausgaben werden ermittelt
Dr Tomas R. Reina is a lecturer in Chemical Engineering and the leader of the Catalysis Unit at the University of Surrey. He holds a PhD in Chemistry with a strong background in heterogeneous catalysis, reaction engineering and materials science. He has broad expertise in the development of advanced catalysts for energy conversion and sustainability. Currently, he is the PI of several projects in the area of CO2 utilisation (sponsored by EPSRC) and green routes for chemicals and fuel production. His research in the field of catalysis has been internationally recognized with several awards and distinctions from prestigious institutions including the European Federation of Catalysis Societies (EFCATS), the Spanish Society of Catalysis (SECAT), and the Institution of Chemical Engineers (IChemE).
Prof. José A. Odriozola is Chair of Inorganic Chemistry of the University of Sevilla, Spain. He is Fellow of the Spanish Society of Catalysis and of the American Chemical Society, and Head of the Materials Science and Technology Panel of the Spanish National Agency for Evaluation and Prospective, ANEP (2004-2006). Prof. Odriozola has focused his research on the surface chemistry of materials and has developed a new research line focused on the manufacture and study of micromonoliths and microchannel reactors for energetic and environmental catalytic applications including CO2 utilization.
Prof. Harvey Arellano-Garcia is Director of Research and Professor of Energy and Chemical Engineering at the Department of Process and Plant Technology at BTU-Cottbus, Germany. He holds an honorary Professorship and is Distinguished Visiting Professor at the Technical University of Berlin in Germany. He has made valuable and relevant contributions to diverse research areas in Energy and Process Systems Engineering. He has pioneered and introduced a novel formulation of optimization problems under uncertainty and proposed methods that enable the efficient solution of the resulting complex numerical problems. The proposed method has a wide range of application, from process synthesis to nonlinear model predictive control. Moreover, his achievements on modelling and optimization-based methods have made a major impact in different fields of Process Engineering, from process design and experimental design to online applications for an improved monitoring and advanced control using miniplant techniques. These research results have also been successfully integrated into several industrial processes. He is recipient of several awards including the Excellence Award of the European Federation of Chemical Engineers (EFCE) in Computer Aided Process Engineering. His research expertise includes the application of mathematical methods to optimise process design, control and operation as well as model-based experimental analysis, and miniplant technology in process and energy systems.
CO2 capture-A brief review of technologies and its integration
Advancing CCSU technologies with Computational Fluid Dynamics (CFD): A look at the future by linking CFD and Process Simulations
Membranes technologies for efficient CO2 capture-conversion
Computational modeling of carbon dioxide catalytic conversion
An overview of the transition to a carbon-neutral steel industry
Potential processes for simultaneous biogas upgrading and carbon dioxide utilization
Biogas sweetening technologies
CO2 conversion to added-value gas phase products: technology overview and catalysts selection
CO2 utilization enabled by microchannel reactors
Analysis of High Pressure Conditions In CO2 Hydrogenation Processes
Sabatier-based direct synthesis of methane and methanol using CO2 from industrial gas mixture
A survey of heterogeneous catalysts for the CO2 reduction to CO via reverse water gas shift
Electrocatalytic conversion of CO2 to syngas
Recent progress on catalysts development for CO2 conversion into value-added chemicals by photo- and electro-reduction
Yolk@Shell Materials for CO2 Conversion: Chemical and Photochemical Applications
Aliphatic Polycarbonates Derived from Epoxides and CO2
Metal-Organic Frameworks (MOFs) for CO2 cycloaddition reactions
Plasma-assisted conversion of CO2

CO2 Capture - A Brief Review of Technologies and Its Integration

Mónica García1, Theo Chronopoulos2, and Rubén M. Montañés3

1International Energy Agency- Greenhouse Gas R&D Programme (IEAGHG), Pure Offices, Hatherley Lane, Cheltenham, GL51 6SH, United Kingdom

2128/15 Hoxton Street, N1 6SH, London, United Kingdom

3Energy Technology, Chalmers University of Technology, Department of Space, Earth and Environment, Hörsalsvägen 7B, SE-412 96, Gothenburg, Sweden

1.1 Introduction: The Role of Carbon Capture

The Intergovernmental Panel for Climate Change (IPCC) recently released the special report on 1.5C [1] and pointed out the need to implement all available tools to cut down CO2 emissions. Energy efficiency, fuel switching, renewables, and carbon capture represent the largest impact on CO2 emission reduction in power and industrial sectors. Carbon capture represents a contribution of 23% in the "Beyond 2 degrees scenario" (B2DS) modeled by the International Energy Agency (IEA)1 and has other interesting characteristics that increase its value beyond its cost: (i) easiness to retrofit current power plants or industrial facilities,2 (ii) simplicity to integrate that in the electricity grid and offer an interesting tool to cover the intermittency of renewables, (iii) ideal to cut down industrial process emissions that otherwise cannot suffer deep reductions, and (iv) current carbon budgets rely on negative emissions to compensate the use of fossil fuels [1]. Carbon capture combined with bioenergy (BECCS) can provide negative emissions at large scale in an immediate future.

CO2 capture (also called CO2 sequestration or carbon capture) involves a group of technologies aiming to separate CO2 from other compounds released during the production of energy or industrial products, obtaining a CO2-rich gas that can be stored or used for the obtention of valuable products. The main classification of CO2 capture technologies relies on where in the process the CO2 separation occurs. For the power sector, it can be divided into pre-, oxy-, and post-combustion. For the industrial sector, the classification is similar, although their integration would be different. In addition, other new arrangements are emerging.

1.2 CO2 Capture Technologies

1.2.1 Status of CO2 Capture Deployment

GCCSI reported in 2018 23 large-scale CCS facilities in operation or under construction globally, summing up 37 MtCO2 per year. This wide range of facilities shows the versatility of CO2 capture processes.3

In the power sector, the United States is leading the implementation deployment, although Europe has the highest CO2 capture capacity. The Boundary Dam project (Canada) and Petra Nova (USA) are pioneers in reaching commercial scale. Moreover, based on the successful results of the Boundary Dam project, a CO2 capture facility has been planned for the Shand power facility (Canada), incorporating not only learnings from the Boundary Dam but also enhanced thermal integration and tailored design. The results show a significant cost reduction [2]. Also in Canada, the Quest project completes the list of Canadian CCS projects in operation [3] and The National Energy Laboratory (NET) power project recently appeared in the United States as a potential significant reduction on CO2 capture costs [4].

In the industrial sector, cement, steel, refining, chemicals, heavy oil, hydrogen, waste-to-energy, fertilizers, and natural gas have been identified by the Carbon Sequestration Leadership Forum (CSLF; as the main intensive emitter industries. As it is highlighted, the Norcem Brevik plant [5, 6], LEILAC [7] (cement production), and Al Redayah (steel production) are on the way to start running carbon capture systems in industrial facilities at pilot and large scales.

1.2.2 Pre-combustion

Pre-combustion systems can be applied to natural gas combined cycles (NGCC) or integrated gasification combined cycle (IGCC) (Figure 1.1), where a syngas, comprising mainly CO and H2, feeds a gas turbine (GT) combined cycle system to produce electricity. The potential advantages are higher conversion efficiencies of coal to electricity and cheaper removal of pollutants [8]. The syngas, based on the water shift reaction, can be converted into CO2 and H2O. This mixture is typically separated with physical solvents (as described in Section 1.2.4), membranes, or sorbents. However, hybrid technologies can also be used. Depending on the technology, further post-treatment would be needed to avoid degradation and loss of efficiency.

The main theoretical advantage of pre-combustion is the production of hydrogen, which will add value to the business model, and a lower energy penalty compared to using the traditional chemical absorption within a post-combustion configuration. However, large projects demonstrated that this difference is only 1-2%, as reported by National Energy Technology Laboratory (NETL) [9].

The most notable pre-combustion project was the Kemper County IGCC plant in the United States, which stopped its operation in 2017.This demonstration facility would place this arrangement at high TRL, while other testing campaigns would reach up to a TRL of 6. 

Figure 1.1 Diagram of pre-combustion capture for power generation in IGCC.

Source: Adapted from Jansen et al. [72].

1.2.3 Oxyfuel

In the oxyfuel process, the air is split into nitrogen and oxygen, generally using an air separation unit (ASU), for the combustion of fuel with nearly pure oxygen. The consequence is a higher flame temperature and a highly concentrated CO2 stream (60-75%, wet and might contain impurities and incondensable components) that can be further purified to meet the final use specifications. The CO2-rich gas is typically recirculated to manage the unstable flame and its high temperature. Nowadays, the progress on oxyfuel combustion is focused on the reduction of air separation costs and the enhancement of process configuration to reduce capture costs. Further information can be found, for example, in Ref. [10]. Based on the current progress, the most advanced arrangements can be assessed as TRL 7.

An advanced oxyfuel process, called the Allam cycle (Figure 1.2), is being tested at large scale as part of the NET Power project in the United States [4]. This involves oxyfuel combustion and a high-pressure supercritical CO2 working fluid in a highly recuperated Brayton cycle, aiming to reduce CO2 capture costs and prove stable operation. Based on that, there is a potential to progress to a TRL of 7 once the facility is fully operational.

1.2.4 Post-combustion

Post-combustion refers to the group of technologies able to separate CO2 from the flue gas emitted during the fuel combustion and/or other reactions in the industrial sector. This indicates that those systems are mainly installed as additional equipment downstream in new plants or during the retrofitting of the existing facilities. The latter represents the main advantage of post-combustion technologies compared to pre- or oxy-combustion, as a fundamental redesign or complex integration with the existing facilities would be minimal.

Figure 1.2 Process schematic of a simplified commercial scale natural gas Allam cycle.

Source: Adapted from Allam et al. [4]. Adsorption

Adsorption refers to the uptake of CO2 molecules onto the surface of another material. Based on the nature of interactions, adsorption can be classified into two types: (i) physical adsorption and (ii) chemical adsorption. In physical adsorption, the molecules are physisorbed because of physical forces (dipole-dipole, electrostatic, apolar, hydrophobic associations, or van der Waals) and the bond energy is 8-41?kcal?mol-1, while in chemical adsorption, the molecules are chemisorbed (chemical bond; covalent, ionic, or metallic) and the bond energy is about 60-418?kcal?mol-1 [11].

A theoretical advantage of adsorption against other processes is that the regeneration energy should be lower compared to absorption because the heat capacity of a solid sorbent is lower than that of aqueous solvents. However, other parameters, such as working capacity and heat of adsorption, should also be considered [12]. The higher the heat of adsorption, the stronger the interaction between the CO2 molecules and adsorbent-active sites and thus the higher the energy demand for the regeneration. The potential disadvantages for adsorbents include particle attrition, handling of large volumes of sorbents, and thermal management of large-scale adsorber vessels.

Solid sorbents can be classified according to the temperature range where adsorption is performed. Low-temperature solid adsorbents (<200?°C) include carbon-based, zeolite-based,...

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