Effect of amine structure on CO2 adsorption over tetraethylenepentamine impregnated poly methyl methacrylate supports

Dong Hyun Jo; Hyunchul Jung; Dong Kun Shin; Chang Hun Lee; Sung Hyun Kim

doi:10.1016/j.seppur.2014.01.048

Effect of amine structure on CO₂ adsorption over tetraethylenepentamine impregnated poly methyl methacrylate supports

Dong Hyun Jo, Hyunchul Jung, Dong Kun Shin, Chang Hun Lee, Sung Hyun Kim

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

46 Citations (Scopus)

Abstract

Tetraethylenepentamine (TEPA) was modified by Michael addition reactions to study the effect of primary, secondary, and tertiary amine structure on its ability to absorb or desorb carbon dioxide. TEPA and modified TEPA were impregnated in a poly(methyl methacrylate) support to obtain solid amines. The specific characteristics such as pH, viscosity, and thermal stability were measured to study the properties of liquid amine. Structural properties, adsorption capacity, rate of adsorption, desorption energy, and sorbent durability during CO₂ adsorption/desorption processes were measured to study the properties of solid amines. The pH of modified liquid TEPA (T1AN, T2AN, and T3AN) was slightly reduced; however, both viscosity and thermal stability were increased. The increased viscosity of the modified amines was indicative of an increase in attraction between the amine molecules; accordingly, amine leaching decreased noticeably and thermal stability of amines increased. Modified amine-impregnated sorbent (ST1AN and ST2AN) showed slight decrease in CO₂ adsorption capacity but noticeable increase in rates of adsorption, durability during cyclic tests, and desorption characteristics compared to TEPA-impregnated sorbent (STEPA).

Original language	English
Pages (from-to)	187-193
Number of pages	7
Journal	Separation and Purification Technology
Volume	125
DOIs	https://doi.org/10.1016/j.seppur.2014.01.048
Publication status	Published - 2014 Apr 7

Bibliographical note

Funding Information:
This work was supported by the Korea CCS R&D Center (KCRC) Grant funded by the Korean government (Ministry of Education, Science and Technology) (No. 2012-0008898).

Keywords

Acrylonitrile
Durability
Tetraethylenepentamine
Thermal stability

ASJC Scopus subject areas

Analytical Chemistry
Filtration and Separation

Access to Document

10.1016/j.seppur.2014.01.048

Cite this

@article{692dca1f7a32410eaa291fc94bd86751,

title = "Effect of amine structure on CO2 adsorption over tetraethylenepentamine impregnated poly methyl methacrylate supports",

abstract = "Tetraethylenepentamine (TEPA) was modified by Michael addition reactions to study the effect of primary, secondary, and tertiary amine structure on its ability to absorb or desorb carbon dioxide. TEPA and modified TEPA were impregnated in a poly(methyl methacrylate) support to obtain solid amines. The specific characteristics such as pH, viscosity, and thermal stability were measured to study the properties of liquid amine. Structural properties, adsorption capacity, rate of adsorption, desorption energy, and sorbent durability during CO2 adsorption/desorption processes were measured to study the properties of solid amines. The pH of modified liquid TEPA (T1AN, T2AN, and T3AN) was slightly reduced; however, both viscosity and thermal stability were increased. The increased viscosity of the modified amines was indicative of an increase in attraction between the amine molecules; accordingly, amine leaching decreased noticeably and thermal stability of amines increased. Modified amine-impregnated sorbent (ST1AN and ST2AN) showed slight decrease in CO2 adsorption capacity but noticeable increase in rates of adsorption, durability during cyclic tests, and desorption characteristics compared to TEPA-impregnated sorbent (STEPA).",

keywords = "Acrylonitrile, Durability, Tetraethylenepentamine, Thermal stability",

author = "Jo, {Dong Hyun} and Hyunchul Jung and Shin, {Dong Kun} and Lee, {Chang Hun} and Kim, {Sung Hyun}",

note = "Funding Information: This work was supported by the Korea CCS R&D Center (KCRC) Grant funded by the Korean government (Ministry of Education, Science and Technology) (No. 2012-0008898).",

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T1 - Effect of amine structure on CO2 adsorption over tetraethylenepentamine impregnated poly methyl methacrylate supports

AU - Jo, Dong Hyun

AU - Jung, Hyunchul

AU - Shin, Dong Kun

AU - Lee, Chang Hun

AU - Kim, Sung Hyun

N1 - Funding Information: This work was supported by the Korea CCS R&D Center (KCRC) Grant funded by the Korean government (Ministry of Education, Science and Technology) (No. 2012-0008898).

PY - 2014/4/7

Y1 - 2014/4/7

N2 - Tetraethylenepentamine (TEPA) was modified by Michael addition reactions to study the effect of primary, secondary, and tertiary amine structure on its ability to absorb or desorb carbon dioxide. TEPA and modified TEPA were impregnated in a poly(methyl methacrylate) support to obtain solid amines. The specific characteristics such as pH, viscosity, and thermal stability were measured to study the properties of liquid amine. Structural properties, adsorption capacity, rate of adsorption, desorption energy, and sorbent durability during CO2 adsorption/desorption processes were measured to study the properties of solid amines. The pH of modified liquid TEPA (T1AN, T2AN, and T3AN) was slightly reduced; however, both viscosity and thermal stability were increased. The increased viscosity of the modified amines was indicative of an increase in attraction between the amine molecules; accordingly, amine leaching decreased noticeably and thermal stability of amines increased. Modified amine-impregnated sorbent (ST1AN and ST2AN) showed slight decrease in CO2 adsorption capacity but noticeable increase in rates of adsorption, durability during cyclic tests, and desorption characteristics compared to TEPA-impregnated sorbent (STEPA).

AB - Tetraethylenepentamine (TEPA) was modified by Michael addition reactions to study the effect of primary, secondary, and tertiary amine structure on its ability to absorb or desorb carbon dioxide. TEPA and modified TEPA were impregnated in a poly(methyl methacrylate) support to obtain solid amines. The specific characteristics such as pH, viscosity, and thermal stability were measured to study the properties of liquid amine. Structural properties, adsorption capacity, rate of adsorption, desorption energy, and sorbent durability during CO2 adsorption/desorption processes were measured to study the properties of solid amines. The pH of modified liquid TEPA (T1AN, T2AN, and T3AN) was slightly reduced; however, both viscosity and thermal stability were increased. The increased viscosity of the modified amines was indicative of an increase in attraction between the amine molecules; accordingly, amine leaching decreased noticeably and thermal stability of amines increased. Modified amine-impregnated sorbent (ST1AN and ST2AN) showed slight decrease in CO2 adsorption capacity but noticeable increase in rates of adsorption, durability during cyclic tests, and desorption characteristics compared to TEPA-impregnated sorbent (STEPA).

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KW - Thermal stability

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