Parametric Testing of a Pilot-scale Design for a Moving-bed CO2 Capture System Using Low-temperature Steam

Okumura, Takahiro; Yoshizawa, Keiko; Nishibe, Shohei; Iwasaki, Hayato; Kazari, Masahide; Hori, Toru

doi:10.1016/j.egypro.2017.03.1369

Cited by 22 publications

(12 citation statements)

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“…At last, the sorbent material is discharged from the adsorbent dryer and refed to the top of the adsorption reactor to separate the CO 2 present in the exhaust gas. This process uses low grade steam (<100 °C) for the regeneration . It is not clear how the temperature of the sorbent is decreased after being at the temperature of the dryer to the adsorber inlet.…”

Section: Reactor Configurationsmentioning

confidence: 99%

Section: Reactor Configurationsmentioning

confidence: 99%

“…This process uses low grade steam (<100 °C) for the regeneration. 53 It is not clear how the temperature of the sorbent is decreased after being at the temperature of the dryer to the adsorber inlet.…”

Section: Mass Transfermentioning

confidence: 99%

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Review on Reactor Configurations for Adsorption-Based CO₂ Capture

Dhoke

Zaabout

Cloete

et al. 2021

Ind. Eng. Chem. Res.

136

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Adsorption-based CO 2 capture has enjoyed considerable research attention in recent years. Most of the research efforts focused on sorbent development to reduce the energy penalty. However, the use of suitable gas−solid contacting systems is key for extracting the full potential from the sorbent to minimize operating and capital costs and accelerate the commercial deployment of the technology. This paper reviews several reactor configurations that were proposed for adsorptionbased CO 2 capture. The fundamental behavior of adsorption in different gas−solid contactors (fixed, fluidized, moving, or rotating beds) and regeneration under different modes (pressure, temperature, or combined swings) is discussed, highlighting the strengths and limitations of different combinations of gas−solid contactor and regeneration mode. In addition, the estimated energy duties in published studies and current technology readiness level of the different reactor configurations are reported. Other aspects, such as the reactor footprint, the operation strategy, suitability to retrofits, and the ability to operate under flexible loads are also discussed. In terms of future work, the key research need is a standardized techno-economic benchmarking study to calculate CO 2 avoidance costs for different adsorption technologies under standardized assumptions. Qualitatively, each technology presents several strengths and weaknesses that make it impossible to identify a clear optimal solution. Such a standardized quantitative comparison is therefore needed to focus on future technology development efforts.

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Section: Reactor Configurationsmentioning

confidence: 99%

Section: Reactor Configurationsmentioning

confidence: 99%

See 1 more Smart Citation

Review on Reactor Configurations for Adsorption-Based CO₂ Capture

Dhoke

Zaabout

Cloete

et al. 2021

Ind. Eng. Chem. Res.

136

View full text Add to dashboard Cite

show abstract

“…9 In addition, fixed bed systems are difficult to implement in industrial scale due to the increased number of reactors and equipment required to treat the large amount of flue gas. 14 In view of the need to treat large volumes uninterruptedly, it is crucial to have smaller units than those imposed by fixed bed configurations. Therefore, the application of another type of solid−gas contactor, such as fluidized bed or moving bed may help overcome such limitations.…”

Section: Introductionmentioning

confidence: 99%

Parametric Analysis of a Moving Bed Temperature Swing Adsorption (MBTSA) Process for Postcombustion CO₂ Capture

Morales-Ospino

Santos

Lima

et al. 2021

Ind. Eng. Chem. Res.

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We simulate a moving bed temperature swing adsorption (MBTSA) process to capture CO2 in postcombustion context using zeolite 13X as adsorbent. Experimental adsorption isotherms for CO2 and N2 were performed gravimetrically to obtain the equilibrium input data for the model. The need of the flue gas drying was demonstrated by pure water and binary water/CO2 experimental adsorption isotherms, and the energy penalty of the water removal was accounted for within the energetic duty of the unit. The model consists of three sections (adsorption, regeneration, and cooling) each with its own model and integrated by a composite model that simulates the entire unit. Given the large number of variables and parameters in a MBTSA process, which can be arranged in different input data sets, a parametric study of the effect of several variables (feed gas flow rate, regeneration temperature, adsorbent residence time in the adsorption section, feed temperature, solid loading) on the key performance parameters of the process was performed. The results showed that, under the studied conditions, values up to 99% and 91% mol of CO2 recovery and purity could be achieved, respectively. The specific energy consumption, which included an energy recovery in the cooling section, was found to be competitive against reported values for commercial amine absorption separation processes suggesting that the MBTSA process might be a potential separation process candidate for large-scale postcombustion CO2 capture by adsorption.

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“…The Kawasaki CO 2 capture (KCC) system is a TSA process that uses an amine-impregnated solid sorbent, which is regenerated using low-temperature steam at 60 °C. A pilot KCC moving bed unit captured 75% of the CO 2 in 820 Nm 3 h -1 of coal exhaust gas at 35 °C with a CO 2 concentration of 13% with a power consumption of 1.3 MJ e kg -1 CO 2 [9]. In another moving bed process, the advanced carbon sorbent technology (ACS), carbon beads are regenerated at 120 °C by steam stripping.…”

Section: Introductionmentioning

confidence: 99%

Development of carbon-based vacuum, temperature and concentration swing adsorption post-combustion CO2 capture processes

Plaza

Rubiera

2019

Chemical Engineering Journal

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Vacuum, temperature and concentration swing adsorption processes, have been designed to capture 85% of the CO 2 emitted by an advanced supercritical coal fired power plant of 800 MW taken as reference, and to produce a concentrated product with 95% of CO 2 (dry basis) using a sustainable carbon adsorbent inside the tubes of a tube-bundle adsorber. Indirect heat transfer is used to increase productivity and to conserve energy within the process. Two different configurations of the cyclic process have been evaluated at cyclic steady state through dynamic process simulation, using a detailed non-isothermal non-equilibrium fixed bed adsorption model that takes into consideration competitive adsorption between the main flue gas components: N 2 , CO 2 and H 2 O. Simulation results indicate that the purity and recovery constraints can be met with a specific heat duty of 2.32 MJ th kg -1 CO 2 and a specific electric consumption of 0.66 MJ e kg -1 CO 2 . The main advantage of this process is that the specific heat duty, which is lower than the benchmark amine absorption technology, could be satisfied using waste heat.

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Parametric Testing of a Pilot-scale Design for a Moving-bed CO2 Capture System Using Low-temperature Steam

Cited by 22 publications

References 1 publication

Review on Reactor Configurations for Adsorption-Based CO₂ Capture

Review on Reactor Configurations for Adsorption-Based CO₂ Capture

Parametric Analysis of a Moving Bed Temperature Swing Adsorption (MBTSA) Process for Postcombustion CO₂ Capture

Development of carbon-based vacuum, temperature and concentration swing adsorption post-combustion CO2 capture processes

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Parametric Testing of a Pilot-scale Design for a Moving-bed CO2 Capture System Using Low-temperature Steam

Cited by 22 publications

References 1 publication

Review on Reactor Configurations for Adsorption-Based CO2 Capture

Review on Reactor Configurations for Adsorption-Based CO2 Capture

Parametric Analysis of a Moving Bed Temperature Swing Adsorption (MBTSA) Process for Postcombustion CO2 Capture

Development of carbon-based vacuum, temperature and concentration swing adsorption post-combustion CO2 capture processes

Contact Info

Product

Resources

About

Review on Reactor Configurations for Adsorption-Based CO₂ Capture

Review on Reactor Configurations for Adsorption-Based CO₂ Capture

Parametric Analysis of a Moving Bed Temperature Swing Adsorption (MBTSA) Process for Postcombustion CO₂ Capture