Carbon Dioxide Capture Using Sorbent-Loaded Hollow-Fiber Modules with Integrated Heat Recovery

Determan, Matthew D.; Hoysall, Dhruv C.; Garimella, Srinivas; Lenz, Richard D.; Leta, D. P.

doi:10.1021/acs.iecr.5b02117

Cited by 7 publications

(2 citation statements)

References 14 publications

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“…Since the cycle times for fixed bed TSA systems are much longer than for PSA (given the relative rates of heat transfer and pressure change in a packed bed), use of fixed beds for large scale TSA is impractical as they would be insensibly large or numerous. As a result, leading research and development work in the application of TSA to CO2 capture has focused on either moving the solids rapidly (fluidised 359 , moving 360 , or rotating beds 361 ), or creating bespoke structures (hollow fibres 362 , etc.) which can be rapidly heated and cooled.…”

Section: Temperature Swing Adsorptionmentioning

confidence: 99%

CO2 Capture by Adsorption Processes

Webley

Danaci

2019

Carbon Capture and Storage

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Adsorption is a reliable process technology that has been in use since the 1960s for gas separation applications. Since the mid 90s, interest has grown around CO2 emissions abatement with adsorption being one of the first technologies considered. There has since been significant research and development on both the materials science, and engineering aspects of adsorption for CO2 capture. Adsorbents with extensive histories such as zeolites, activated carbons, and layered double hydroxides have experienced resurgences, and novel adsorbents such as metal–organic frameworks and microporous organic polymers were conceived. Adsorption-based separations are cyclic processes, and methods to improve the attainable purity and recovery of the CO2 have also been investigated; this work has shown that 90%mol recovery and 95%mol purity are possible for post-combustion capture. Work is also underway to improve the throughput of gas–solid contacting devices as a form of process intensification, which is required for high volumetric flow rate applications. Although there are still some concerns around the stability of some adsorbents to impurities, there have been meaningful and significant advancements over the last 20–25 years. These have made adsorption a viable technology for carbon capture applications.

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Section: Temperature Swing Adsorptionmentioning

confidence: 99%

CO2 Capture by Adsorption Processes

Webley

Danaci

2019

Carbon Capture and Storage

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“…By circulating the working fluid in the circuit between the above two adsorption beds, sensible heat can be transported from the bed in the pre-cooling step to the other bed in the pre-heating step 16 as shown in the Fig. 2.…”

Section: Introductionmentioning

confidence: 99%

Energy dissipation evaluation of temperature swing adsorption (TSA) cycle based on thermodynamic entropy insights

Deng

Zhao

et al. 2019

Sci Rep

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The special report of the Intergovernmental Panel on Climate Change’s (IPCC) on global warming of 1.5 °C marks a critical point in climate negotiations, which emphasizes the importance to control the CO2 level in the atmosphere. The current technology cluster of CO2 capture is still energy-intensive which results in a substantial increase in costs, thus the efficient conversion among various forms of energy is the major topic of research. Considering that most of the existing research are primarily based on the viewpoint of energy conservation on a specific case study, the results thus could not be efficiently generalized as a condensed mechanism of energy dissipation. In this work, the entropy generation evaluation of a 4-step temperature swing adsorption (TSA) process was presented as a sample. The values and contribution distributions of various entropy generation in the thermodynamic cycle were calculated to evaluate the major energy dissipation. The results on contribution distribution of entropy generation and heat required were compared, the entropy generation distribution contributed by heat transfer decreases from 63.27% to 53.72% with internal heat recovery (IHR) method integrated. Thus the entropy generation saving potential of IHR method could be proved.

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