Thermal Stability Enhanced Tetraethylenepentamine/Silica Adsorbents for High Performance CO2 Capture

Sunghyun Park; Keunsu Choi; Hyun Jung Yu; Young June Won; Chaehoon Kim; Minkee Choi; So Hye Cho; Jung Hyun Lee; Seung Yong Lee; Jong Suk Lee

doi:10.1021/acs.iecr.7b04912

Thermal Stability Enhanced Tetraethylenepentamine/Silica Adsorbents for High Performance CO₂ Capture

Sunghyun Park, Keunsu Choi, Hyun Jung Yu, Young June Won, Chaehoon Kim, Minkee Choi, So Hye Cho, Jung Hyun Lee, Seung Yong Lee, Jong Suk Lee

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

Tetraethylenepentamine (TEPA), consisting mainly of primary and secondary amines, exhibits a high CO₂ sorption capacity; however, its poor thermal stability hampers practical utilization in the temperature swing adsorption process for CO₂ capture. Here, a facile functionalization of TEPA with 1,2-epoxybutane (EB) substantially enhanced its thermal stability as well as the CO₂ adsorption kinetics. Our careful analysis on the liquid-state ¹³C NMR disclosed the amine state distribution of EB-functionalized TEPA (EB-TEPA). Although the increase in tertiary amine portion induced by EB-functionalization reduced CO₂ sorption capacity, the 0.64EB-TEPA (i.e., TEPA functionalized with EB with a TEPA/EB molar ratio of 1:3)/SiO₂ showed an excellent long-term stability over the 10 consecutive cycles of adsorption/desorption processes with a CO₂ swing capacity of 2.0 mmol CO₂ g^-1 under dry CO₂/N₂ (15/85 mol/mol) feed conditions. Also, the first-principles calculation identified the configuration of modified TEPA molecules with XRD measurements, supporting an easy access of CO₂ into amine moieties of our modified TEPA molecules.

Original language	English
Pages (from-to)	4632-4639
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	57
Issue number	13
DOIs	https://doi.org/10.1021/acs.iecr.7b04912
Publication status	Published - 2018 Apr 4

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Industrial and Manufacturing Engineering

Access to Document

10.1021/acs.iecr.7b04912

Cite this

@article{33bc8b04b1c14fa0895f03e7adc314fb,

title = "Thermal Stability Enhanced Tetraethylenepentamine/Silica Adsorbents for High Performance CO2 Capture",

abstract = "Tetraethylenepentamine (TEPA), consisting mainly of primary and secondary amines, exhibits a high CO2 sorption capacity; however, its poor thermal stability hampers practical utilization in the temperature swing adsorption process for CO2 capture. Here, a facile functionalization of TEPA with 1,2-epoxybutane (EB) substantially enhanced its thermal stability as well as the CO2 adsorption kinetics. Our careful analysis on the liquid-state 13C NMR disclosed the amine state distribution of EB-functionalized TEPA (EB-TEPA). Although the increase in tertiary amine portion induced by EB-functionalization reduced CO2 sorption capacity, the 0.64EB-TEPA (i.e., TEPA functionalized with EB with a TEPA/EB molar ratio of 1:3)/SiO2 showed an excellent long-term stability over the 10 consecutive cycles of adsorption/desorption processes with a CO2 swing capacity of 2.0 mmol CO2 g-1 under dry CO2/N2 (15/85 mol/mol) feed conditions. Also, the first-principles calculation identified the configuration of modified TEPA molecules with XRD measurements, supporting an easy access of CO2 into amine moieties of our modified TEPA molecules.",

author = "Sunghyun Park and Keunsu Choi and Yu, {Hyun Jung} and Won, {Young June} and Chaehoon Kim and Minkee Choi and Cho, {So Hye} and Lee, {Jung Hyun} and Lee, {Seung Yong} and Lee, {Jong Suk}",

note = "Funding Information: This research was supported by the Korea CCS R & D Center (KCRC) (No. 2014M1A8A1049315). This research was supported by “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201150). Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = apr,

day = "4",

doi = "10.1021/acs.iecr.7b04912",

language = "English",

volume = "57",

pages = "4632--4639",

journal = "Industrial & Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

number = "13",

}

TY - JOUR

T1 - Thermal Stability Enhanced Tetraethylenepentamine/Silica Adsorbents for High Performance CO2 Capture

AU - Park, Sunghyun

AU - Choi, Keunsu

AU - Yu, Hyun Jung

AU - Won, Young June

AU - Kim, Chaehoon

AU - Choi, Minkee

AU - Cho, So Hye

AU - Lee, Jung Hyun

AU - Lee, Seung Yong

AU - Lee, Jong Suk

N1 - Funding Information: This research was supported by the Korea CCS R & D Center (KCRC) (No. 2014M1A8A1049315). This research was supported by “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201150). Publisher Copyright: © 2018 American Chemical Society.

PY - 2018/4/4

Y1 - 2018/4/4

N2 - Tetraethylenepentamine (TEPA), consisting mainly of primary and secondary amines, exhibits a high CO2 sorption capacity; however, its poor thermal stability hampers practical utilization in the temperature swing adsorption process for CO2 capture. Here, a facile functionalization of TEPA with 1,2-epoxybutane (EB) substantially enhanced its thermal stability as well as the CO2 adsorption kinetics. Our careful analysis on the liquid-state 13C NMR disclosed the amine state distribution of EB-functionalized TEPA (EB-TEPA). Although the increase in tertiary amine portion induced by EB-functionalization reduced CO2 sorption capacity, the 0.64EB-TEPA (i.e., TEPA functionalized with EB with a TEPA/EB molar ratio of 1:3)/SiO2 showed an excellent long-term stability over the 10 consecutive cycles of adsorption/desorption processes with a CO2 swing capacity of 2.0 mmol CO2 g-1 under dry CO2/N2 (15/85 mol/mol) feed conditions. Also, the first-principles calculation identified the configuration of modified TEPA molecules with XRD measurements, supporting an easy access of CO2 into amine moieties of our modified TEPA molecules.

AB - Tetraethylenepentamine (TEPA), consisting mainly of primary and secondary amines, exhibits a high CO2 sorption capacity; however, its poor thermal stability hampers practical utilization in the temperature swing adsorption process for CO2 capture. Here, a facile functionalization of TEPA with 1,2-epoxybutane (EB) substantially enhanced its thermal stability as well as the CO2 adsorption kinetics. Our careful analysis on the liquid-state 13C NMR disclosed the amine state distribution of EB-functionalized TEPA (EB-TEPA). Although the increase in tertiary amine portion induced by EB-functionalization reduced CO2 sorption capacity, the 0.64EB-TEPA (i.e., TEPA functionalized with EB with a TEPA/EB molar ratio of 1:3)/SiO2 showed an excellent long-term stability over the 10 consecutive cycles of adsorption/desorption processes with a CO2 swing capacity of 2.0 mmol CO2 g-1 under dry CO2/N2 (15/85 mol/mol) feed conditions. Also, the first-principles calculation identified the configuration of modified TEPA molecules with XRD measurements, supporting an easy access of CO2 into amine moieties of our modified TEPA molecules.

UR - http://www.scopus.com/inward/record.url?scp=85045031816&partnerID=8YFLogxK

U2 - 10.1021/acs.iecr.7b04912

DO - 10.1021/acs.iecr.7b04912

M3 - Article

AN - SCOPUS:85045031816

SN - 0888-5885

VL - 57

SP - 4632

EP - 4639

JO - Industrial & Engineering Chemistry Research

JF - Industrial & Engineering Chemistry Research

IS - 13

ER -

Thermal Stability Enhanced Tetraethylenepentamine/Silica Adsorbents for High Performance CO₂ Capture

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this