Are Water-lean Solvent Systems Viable for Post-Combustion CO2 Capture?

Heldebrant, David J.; Koech, Phillip K.; Rousseau, Roger; Glezakou, Vassiliki -Alexandra; Cantu, David; Malhotra, Deepika; Zheng, Feng; Whyatt, Greg; Freeman, Charles J.; Bearden, Mark D.

doi:10.1016/j.egypro.2017.03.1218

Title: Are Water-lean Solvent Systems Viable for Post-Combustion CO₂ Capture?

Full Record
Other Related Research

Abstract

Here, we present here an overview of water-lean solvents that compares their projected costs and performance to aqueous amine systems, emphasizing critical areas of study needed to evaluate their performance against their water-based brethren. The work presented her focuses on bridging these knowledge gaps. Because the majority of water-lean solvents are still at the lab scale, substantial studies are still needed to model their performance at scale. This presents a significant challenge as eachformulation has different physical and thermodynamic properties and behavior, and quantifying how these different properties manifest themselves in conventional absorber-stripper configurations, or identifying new configurations that are specific for a solvent’s signature behavior. We identify critical areas of study that are needed, and our efforts (e.g. custom infrastructure, molecular models) to predict, measure, and model these behaviors. Such findings are critical for determining the rheology required for heat exchanger design; absorber designs and packing to accommodate solvents with gradient changes (e.g. viscosity, contact angle, surface tension), and stripper configurations without direct steam utilization or water reflux. Another critical area of research need is to understand the molecular structure of the liquid interface and bulk as a function of CO₂ loading, and to assess whether conventional film theoriesmore »« less

Authors:

Heldebrant, David J. ^[1]; Koech, Phillip K. ^[1]; Rousseau, Roger ^[1]; Glezakou, Vassiliki -Alexandra ^[1]; Cantu, David ^[1]; Malhotra, Deepika ^[1]; Zheng, Feng ^[1]; Whyatt, Greg ^[1]; Freeman, Charles J. ^[1]; Bearden, Mark D. ^[1]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Publication Date:: Fri Aug 18 00:00:00 EDT 2017

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1398182

Report Number(s):: PNNL-SA-121489
Journal ID: ISSN 1876-6102; AA6510000

Grant/Contract Number:: AC05-76RL01830

Resource Type:: Accepted Manuscript

Journal Name:: Energy Procedia

Additional Journal Information:: Journal Volume: 114; Journal Issue: C; Journal ID: ISSN 1876-6102

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 15 GEOTHERMAL ENERGY; 54 ENVIRONMENTAL SCIENCES; CO2BOL; water-lean solvent; CO2 capture

Citation Formats


                    Heldebrant, David J., Koech, Phillip K., Rousseau, Roger, Glezakou, Vassiliki -Alexandra, Cantu, David, Malhotra, Deepika, Zheng, Feng, Whyatt, Greg, Freeman, Charles J., and Bearden, Mark D. Are Water-lean Solvent Systems Viable for Post-Combustion CO2 Capture?.  United States: N. p., 2017. 
Web.  doi:10.1016/j.egypro.2017.03.1218.

Copy to clipboard


                    Heldebrant, David J., Koech, Phillip K., Rousseau, Roger, Glezakou, Vassiliki -Alexandra, Cantu, David, Malhotra, Deepika, Zheng, Feng, Whyatt, Greg, Freeman, Charles J., & Bearden, Mark D. Are Water-lean Solvent Systems Viable for Post-Combustion CO2 Capture?.  United States.  https://doi.org/10.1016/j.egypro.2017.03.1218

Copy to clipboard


                    Heldebrant, David J., Koech, Phillip K., Rousseau, Roger, Glezakou, Vassiliki -Alexandra, Cantu, David, Malhotra, Deepika, Zheng, Feng, Whyatt, Greg, Freeman, Charles J., and Bearden, Mark D. Fri .  
"Are Water-lean Solvent Systems Viable for Post-Combustion CO2 Capture?".  United States.  https://doi.org/10.1016/j.egypro.2017.03.1218.  https://www.osti.gov/servlets/purl/1398182.

Copy to clipboard


                    
@article{osti_1398182,

  title        = {Are Water-lean Solvent Systems Viable for Post-Combustion CO2 Capture?},

  author       = {Heldebrant, David J. and Koech, Phillip K. and Rousseau, Roger and Glezakou, Vassiliki -Alexandra and Cantu, David and Malhotra, Deepika and Zheng, Feng and Whyatt, Greg and Freeman, Charles J. and Bearden, Mark D.},

  abstractNote = {Here, we present here an overview of water-lean solvents that compares their projected costs and performance to aqueous amine systems, emphasizing critical areas of study needed to evaluate their performance against their water-based brethren. The work presented her focuses on bridging these knowledge gaps. Because the majority of water-lean solvents are still at the lab scale, substantial studies are still needed to model their performance at scale. This presents a significant challenge as eachformulation has different physical and thermodynamic properties and behavior, and quantifying how these different properties manifest themselves in conventional absorber-stripper configurations, or identifying new configurations that are specific for a solvent’s signature behavior. We identify critical areas of study that are needed, and our efforts (e.g. custom infrastructure, molecular models) to predict, measure, and model these behaviors. Such findings are critical for determining the rheology required for heat exchanger design; absorber designs and packing to accommodate solvents with gradient changes (e.g. viscosity, contact angle, surface tension), and stripper configurations without direct steam utilization or water reflux. Another critical area of research need is to understand the molecular structure of the liquid interface and bulk as a function of CO2 loading, and to assess whether conventional film theories accurately quantify solvent behavior, or if thermodynamic models adequately quantify activity coefficients of ions in solution. We conclude with an assessment of our efforts to aid in bridging the knowledge gaps in understanding water-lean solvents, and suggestions of what is needed to enable large-scale demonstrations to meet the United States Department of Energy’s year 2030 goal.},

  doi          = {10.1016/j.egypro.2017.03.1218},

  journal      = {Energy Procedia},

  number       = C,

  volume       = 114,

  place        = {United States},

  year         = {Fri Aug 18 00:00:00 EDT 2017},

  month        = {Fri Aug 18 00:00:00 EDT 2017}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1016/j.egypro.2017.03.1218

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 15 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Techno-Economic Comparison of Various Process Configurations for Post-Combustion Carbon Capture Using a Single-Component Water-Lean Solvent

Journal Article Jiang, Yuan ; Mathias, Paul M. ; Freeman, Charles J. ; ... - International Journal of Greenhouse Gas Control

Solvent-based absorption using aqueous amines is the most mature and scalable technology for post-combustion carbon capture, but aqueous amines are subject to high energy and capital investment costs. Those costs can be significantly reduced by considering water-lean solvents and advanced process configurations, as both approaches can minimize the circulation, condensation and vaporization of water in the system. Even though advanced process configurations have been intensively studied for aqueous amines, few discussions can be found in the open literature for configurations associated with water-lean solvents. In order to fill the gap, the present study focuses on the process designs towards lowermore »« less
https://doi.org/10.1016/j.ijggc.2021.103279
CO2-Binding Organic Liquids Gas Capture with Polarity-Swing-Assisted Regeneration Full Technology Feasibility Study B1 - Solvent-based Systems

Technical Report Heldebrant, David J

PNNL, Fluor Corporation and Queens University (Kingston, ON) successfully completed a three year comprehensive study of the CO2BOL water-lean solvent platform with Polarity Swing Assisted Regeneration (PSAR). This study encompassed solvent synthesis, characterization, environmental toxicology, physical, thermodynamic and kinetic property measurements, Aspen Plus™ modeling and bench-scale testing of a candidate CO2BOL solvent molecule. Key Program Findings The key program findings are summarized as follows: • PSAR favorably reduced stripper duties and reboiler temperatures with little/no impact to absorption column • >90% CO2 capture was achievable at reasonable liquid-gas ratios in the absorber • High rich solvent viscosities (up to 600more »« less
https://doi.org/10.2172/1151840

Full Text Available
Emissions mitigation technology for advanced water-lean solvent-based CO₂ capture processes

Technical Report Tanthana, Jak ; Mobley, Paul ; Gilmore, Dennis ; ...

This technical final report submitted to DOE/NETL presents all the research activities performed during the entirety of DE-FE0031660 project-Emissions Mitigation Technology for Advanced Water-Lean Solvent-Based CO₂ Capture Processes which spans from October 2018 through March 2022. RTI International has been conducting studies from fundamental and operational aspects to reduce the overall amine emissions from the advanced Water-Lean Solvent (WLS) systems, specifically RTI’s Non-Aqueous Solvent (NAS). This technical final report will highlight the key findings from project which align closely to the project objectives which are: Identify the contribution of vapor loss, entrainment, and aerosols to the overall emissions of water-leanmore »« less
https://doi.org/10.2172/1875691

Full Text Available
A Process with Decoupled Absorber Kinetics and Solvent Regeneration through Membrane Dewatering and In-Column Heat Transfer (Final Report)

Technical Report Frimpong, Reynolds ; Liu, Kunlei ; Richburg, Lisa ; ...

This report summarizes the work conducted on project DE-FE0031604 where University of Kentucky Center for Applied Energy (UK CAER) has validated its intensified CO₂ capture process through substantial enhancements to the kinetics of the absorption process and energy reductions by absorber temperature profile modification, dewatering and heat integration technologies for achieving significant capital and operating cost reductions. To address DOE’s objective of improving post-combustion CO₂ capture technology and reducing associated cost, UK CAER employed an intensified process which combined three key aspects targeted at overcoming inherent limitations or barriers in the conventional CO₂ capture and desorption process. The process designedmore »« less
https://doi.org/10.2172/1864587

Full Text Available
Device Scale Modeling of Solvent Absorption using MFIX-TFM

Technical Report Carney, Janine E. ; Finn, Justin R.

Recent climate change is largely attributed to greenhouse gases (e.g., carbon dioxide, methane) and fossil fuels account for a large majority of global CO₂ emissions. That said, fossil fuels will continue to play a significant role in the generation of power for the foreseeable future. The extent to which CO₂ is emitted needs to be reduced, however, carbon capture and sequestration are also necessary actions to tackle climate change. Different approaches exist for CO₂ capture including both post-combustion and pre-combustion technologies, oxy-fuel combustion and/or chemical looping combustion. The focus of this effort is on post-combustion solvent-absorption technology. To apply CO_{2more » technologies at commercial scale, the availability and maturity and the potential for scalability of that technology} need to be considered. Solvent absorption is a proven technology but not at the scale needed by typical power plant. The scale up and down and design of laboratory and commercial packed bed reactors depends heavily on the specific knowledge of two-phase pressure drop, liquid holdup, the wetting efficiency and mass transfer efficiency as a function of operating conditions. Simple scaling rules often fail to provide proper design. Conventional reactor design modeling approaches will generally characterize complex non-ideal flow and mixing patterns using simplified and/or mechanistic flow assumptions. While there are varying levels of complexity used within these approaches, none of these models resolve the local velocity fields. Consequently, they are unable to account for important design factors such as flow maldistribution and channeling from a fundamental perspective. Ideally design would be aided by development of predictive models based on truer representation of the physical and chemical processes that occur at different scales. Computational fluid dynamic (CFD) models are based on multidimensional flow equations with first principle foundations. CFD models can include a more accurate physical description of flow processes and be modified to include more complex behavior. Wetting performance and spatial liquid distribution inside the absorber are recognized as weak areas of knowledge requiring further investigation. CFD tools offer a possible method to investigating such topics and gaining a better understanding of their influence on reactor performance. This report focuses first on describing a hydrodynamic model for countercurrent gas-liquid flow through a packed column and then on the chemistry, heat and mass transfer specific to CO₂ absorption using monoethanolamine (MEA). The indicated model is implemented in MFIX, a CFD open source software package. The user defined functions needed to build this model are described in detail along with the keywords for the corresponding input file. A test case is outlined along with a few results. The example serves to briefly illustrate the developed CFD tool and its potential capability to investigate solvent absorption.« less
https://doi.org/10.2172/1350958

Full Text Available

Similar Records

Title: Are Water-lean Solvent Systems Viable for Post-Combustion CO2 Capture?

Abstract

Citation Formats

Title: Are Water-lean Solvent Systems Viable for Post-Combustion CO₂ Capture?