Process analysis of intensified absorber for post-combustion CO2 capture through modelling and simulation

Joel, Atuman Samaila; Wang, Meihong; Ramshaw, Colin; Oko, Eni

doi:10.1016/j.ijggc.2013.12.005

Cited by 73 publications

(86 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This allows higher flooding rate and lower interfacial mass transfer resistance resulting in significant reduction in the packed bed sizes. Recent studies have demonstrated prospects of replacing conventional packed beds in PCC with RPB (Agarwal et al 2010;Joel et al 2014;Thiels et al 2016). Agarwal et al (2010) and Joel et al (2014) reported 7 and 12 times packing volume reduction respectively for separate cases involving replacement of conventional packed bed with RPB for Absorbers in PCC based on chemical absorption.…”

Section: Commercial Deploymentmentioning

confidence: 99%

Current status and future development of solvent-based carbon capture

Oko

Wang

Joel

2017

Int J Coal Sci Technol

Self Cite

View full text Add to dashboard Cite

Solvent-based carbon capture is the most commercially-ready technology for economically and sustainably reaching carbon emission reduction targets in the power sector. Globally, the technology has been deployed to deal with flue gases from large scale power plants and different carbon-intensive industries. The success of the technology is due to significant R&D activities on the process development and decades of industrial experience on acid gas removal processes from gaseous mixtures. In this paper, current status of PCC based on chemical absorption-commercial deployment and demonstration projects, analysis of different solvents and process configurations-is reviewed. Although some successes have been recorded in developing this technology, its commercialization has been generally slow as evidenced in the cancellation of high profile projects across the world. This is partly due to the huge cost burden of the technology and unpredictable government policies. Different research directions, namely new process development involving process intensification, new solvent development and a combination of both, are discussed in this paper as possible pathways for reducing the huge cost of the technology.

show abstract

Section: Commercial Deploymentmentioning

confidence: 99%

Current status and future development of solvent-based carbon capture

Oko

Wang

Joel

2017

Int J Coal Sci Technol

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is especially true when modeling more complex processes such as distillation or reactive systems for which first‐principle models can be both difficult and tedious. For this reason, most of the modeling and simulation studies of rotating packed beds reported in the literature have opted to modify existing units (e.g. RADFRAC module in Aspen Plus) so that the special characteristics of HiGee contactors, such as the effect of the centrifugal field on mass transfer coefficients and pressure drop and the variation of flow area with radial length, can be taken into account.…”

Section: Modeling and Simulationmentioning

confidence: 99%

A review on process intensification in HiGee distillation

Garcia

Schaaf

Kiss

2017

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

15This review paper describes the state-of-the-art in the field of HiGee contactors used for gas-16 liquid mass transfer processes, with a special focus on distillation, and for heterogeneously 17 catalyzed reactions. 18Several types of rotating beds are discussed, including single-block rotating packed-bed, split-19 packing rotating bed, rotating zigzag bed, two-stage counter-current rotating packed bed, 20 blade packing rotating packed bed, rotating bed with blade packing and baffles, counter-flow 21 concentric-ring rotating bed and crossflow concentric-baffle rotating bed. 22The working principles of HiGee technology, as well as the modeling, design and control 23 aspects, and practical applications are explained and discussed. In addition, this paper 24 addresses the advantages and disadvantages with respect to mass-transfer performance, 25 pressure drop, rotor complexity and suitability to perform continuous distillation and to be 26

show abstract

“…These towers make the fluids spin at high speeds using centrifugal forces instead of gravitational forces, making the solvent and gas flow outwards and inwards, respectively. The rotating towers have shown to favor gas‐liquid contact, thus improving the reaction rate . The towers can be operated in multiples either themselves or in combination with conventional packed towers and in different configurations, namely series and parallel.…”

Section: Post‐combustion Co2 Capture In Gas‐fired Systemsmentioning

confidence: 99%

“…The rotating towers have shown to favor gas-liquid contact, thus improving the reaction rate. 95,96 The towers can be operated in multiples either themselves or in combination with conventional packed towers and in different configurations, namely series and parallel. Yu et al 97 studied this system for a flue gas with 10%vol.…”

Section: Process Optimizationmentioning

confidence: 99%

Making gas‐CCS a commercial reality: The challenges of scaling up

et al. 2017

View full text Add to dashboard Cite

Significant reductions in CO 2 emissions are required to limit the global temperature rise to 2°C. Carbon capture and storage (CCS) is a key enabling technology that can be applied to power generation and industrial processes to lower their carbon intensity. There are, however, several challenges that such a method of decarbonization poses when used in the context of natural gas (gas-CCS), especially for solvent-based (predominantly amines) post-combustion capture. These are related to: (i) the low CO 2 partial pressure of the exhaust gases from gas-fired power plants (ß3-4%vol. CO 2 ), which substantially limits the driving force for the capture process; (ii) their high O 2 concentration (ß12-13%vol. O 2 ), which can degrade the capture media via oxidative solvent degradation; and (iii) their high volumetric flow rates, which means large capture plants are needed. Such post-combustion gas-CCS features unavoidably lead to increased CO 2 capture costs. This perspective aims to summarize the key technologies used to overcome these as a priority, including supplementary firing, humidified systems, exhaust gas recirculation and selective exhaust gas recirculation. These focus on the maximum CO 2 levels achievable for each, as well as the electrical efficiencies attainable when the capture penalty is taken into account. Oxy-turbine cycles are also discussed as an alternative to post-combustion gas-CCS, indicating the main advantages and limitations of these systems together with the expected electrical efficiencies. Furthermore, we consider the challenges for scaling-up and deployment of these technologies at a commercial level to enable gas-CCS to play a crucial role in a low-carbon future. C

show abstract

Process analysis of intensified absorber for post-combustion CO2 capture through modelling and simulation

Cited by 73 publications

References 23 publications

Current status and future development of solvent-based carbon capture

Current status and future development of solvent-based carbon capture

A review on process intensification in HiGee distillation

Making gas‐CCS a commercial reality: The challenges of scaling up

Contact Info

Product

Resources

About