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Title: Synthesis and characterization of low viscosity carbon dioxide binding organic liquids for flue gas clean up

Abstract

Climate change is partly attributed to global anthropogenic carbon dioxide (CO2) emission to the atmosphere. These environmental effects can be mitigated by CO2 capture, utilization and storage. Alkanolamine solvents, such as monoethanolamine (MEA), which bind CO2 as carbamates or bicarbonate salts are used for CO2 capture in niche applications. These solvents consist of approximately 30 wt% of MEA in water, exhibiting a low, CO2-rich viscosity, fast kinetics and favorable thermodynamics. However, these solvents have low CO2 capacity and high heat capacity of water, resulting in prohibitively high costs of thermal solvent regeneration. Effective capture of the enormous amounts of CO2 produced by coal-fired plants requires a material with high CO2 capacity and low regeneration energy requirements. To this end, several water-lean transformational solvents systems have been developed in order to reduce these energy penalties. These technologies include nano-material organic hybrids (NOHMs), task-specific, protic and conventional ionic liquids, phase change solvents. As part of an ongoing program in our group, we have developed new water lean transformational solvents known as CO2 binding organic liquids (CO2BOLs) which have the potential to be energy efficient CO2 capture solvents. These solvents, also known as switchable ionic liquids meaning, are organic solvents that can reversiblymore » transform from non- ionic to ionic form and back. The zwitterionic state in these liquids is formed when low polarity non-ionic alkanolguanidines or alkanolamidines react with CO2 or SO2 to form ionic liquids with high polarity. These polar ionic liquids can be thermally converted to the less polar non-ionic solvent by releasing CO2.« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1349181
Report Number(s):
PNNL-SA-106437
AA6510000
DOE Contract Number:
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: Energy & Fuels Preprints Presented at the 249th ACS National Meeting & Exposition, March 22-26, 2015, Denver, Colorado, 60(1):628-630
Country of Publication:
United States
Language:
English

Citation Formats

Koech, Phillip K., Malhotra, Deepika, Heldebrant, David J., Cantu Cantu, David, Glezakou, Vassiliki Alexandra, and Rousseau, Roger J. Synthesis and characterization of low viscosity carbon dioxide binding organic liquids for flue gas clean up. United States: N. p., 2015. Web.
Koech, Phillip K., Malhotra, Deepika, Heldebrant, David J., Cantu Cantu, David, Glezakou, Vassiliki Alexandra, & Rousseau, Roger J. Synthesis and characterization of low viscosity carbon dioxide binding organic liquids for flue gas clean up. United States.
Koech, Phillip K., Malhotra, Deepika, Heldebrant, David J., Cantu Cantu, David, Glezakou, Vassiliki Alexandra, and Rousseau, Roger J. Thu . "Synthesis and characterization of low viscosity carbon dioxide binding organic liquids for flue gas clean up". United States. doi:.
@article{osti_1349181,
title = {Synthesis and characterization of low viscosity carbon dioxide binding organic liquids for flue gas clean up},
author = {Koech, Phillip K. and Malhotra, Deepika and Heldebrant, David J. and Cantu Cantu, David and Glezakou, Vassiliki Alexandra and Rousseau, Roger J.},
abstractNote = {Climate change is partly attributed to global anthropogenic carbon dioxide (CO2) emission to the atmosphere. These environmental effects can be mitigated by CO2 capture, utilization and storage. Alkanolamine solvents, such as monoethanolamine (MEA), which bind CO2 as carbamates or bicarbonate salts are used for CO2 capture in niche applications. These solvents consist of approximately 30 wt% of MEA in water, exhibiting a low, CO2-rich viscosity, fast kinetics and favorable thermodynamics. However, these solvents have low CO2 capacity and high heat capacity of water, resulting in prohibitively high costs of thermal solvent regeneration. Effective capture of the enormous amounts of CO2 produced by coal-fired plants requires a material with high CO2 capacity and low regeneration energy requirements. To this end, several water-lean transformational solvents systems have been developed in order to reduce these energy penalties. These technologies include nano-material organic hybrids (NOHMs), task-specific, protic and conventional ionic liquids, phase change solvents. As part of an ongoing program in our group, we have developed new water lean transformational solvents known as CO2 binding organic liquids (CO2BOLs) which have the potential to be energy efficient CO2 capture solvents. These solvents, also known as switchable ionic liquids meaning, are organic solvents that can reversibly transform from non- ionic to ionic form and back. The zwitterionic state in these liquids is formed when low polarity non-ionic alkanolguanidines or alkanolamidines react with CO2 or SO2 to form ionic liquids with high polarity. These polar ionic liquids can be thermally converted to the less polar non-ionic solvent by releasing CO2.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}

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