Effect of PEI Impregnation on the CO2 Capture Performance of Activated Fly Ash

Abdallah Dindi; Dang Viet Quang; Enas Nashef; Mohammad Abu Zahra

doi:10.1016/j.egypro.2017.03.1361

Effect of PEI Impregnation on the CO₂ Capture Performance of Activated Fly Ash

Abdallah Dindi, Dang Viet Quang, Enas Nashef, Mohammad Abu Zahra

Chemical and Petroleum Engineering

Research output: Contribution to journal › Conference article › peer-review

32 Scopus citations

Abstract

In the bid to develop cheaper adsorbents for CO₂ capture applications, this work investigates the impact of polyethylenimine (PEI) impregnation on the performance of an activated fly ash material for CO₂ capture. The fly ash was activated by fusing with NaOH and then subjecting to hydrothermal treatment to derive more porous zeolitic phases which were subsequently loaded with Polyethylenimine (PEI) using a wet impregnation technique. Two different PEI amines (MW∼600 and MW∼1200) were tested at varying concentrations (15%, 20%, and 25%) to study the effect of molecular weight of the PEI as well the loading percentage on the adsorption performance. The activation resulted in a significant increase in surface area from 11 m²/g in the fly ash to 270 m²/g in the activated fly ash, while the 25% PEI-600 sorbent was found to be the most efficient, giving the highest adsorption capacity of 26 mg/g adsorbent at 70 ^oC.

Original language	British English
Pages (from-to)	2243-2251
Number of pages	9
Journal	Energy Procedia
Volume	114
DOIs	https://doi.org/10.1016/j.egypro.2017.03.1361
State	Published - 2017
Event	13th International Conference on Greenhouse Gas Control Technologies, GHGT 2016 - Lausanne, Switzerland Duration: 14 Nov 2016 → 18 Nov 2016

Keywords

Amine Impregnation
CO capture
Fly Ash zeolite
PEI

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10.1016/j.egypro.2017.03.1361

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title = "Effect of PEI Impregnation on the CO2 Capture Performance of Activated Fly Ash",

abstract = "In the bid to develop cheaper adsorbents for CO2 capture applications, this work investigates the impact of polyethylenimine (PEI) impregnation on the performance of an activated fly ash material for CO2 capture. The fly ash was activated by fusing with NaOH and then subjecting to hydrothermal treatment to derive more porous zeolitic phases which were subsequently loaded with Polyethylenimine (PEI) using a wet impregnation technique. Two different PEI amines (MW∼600 and MW∼1200) were tested at varying concentrations (15%, 20%, and 25%) to study the effect of molecular weight of the PEI as well the loading percentage on the adsorption performance. The activation resulted in a significant increase in surface area from 11 m2/g in the fly ash to 270 m2/g in the activated fly ash, while the 25% PEI-600 sorbent was found to be the most efficient, giving the highest adsorption capacity of 26 mg/g adsorbent at 70 oC.",

keywords = "Amine Impregnation, CO capture, Fly Ash zeolite, PEI",

author = "Abdallah Dindi and Quang, {Dang Viet} and Enas Nashef and {Abu Zahra}, Mohammad",

note = "Publisher Copyright: {\textcopyright} 2017 The Authors.; 13th International Conference on Greenhouse Gas Control Technologies, GHGT 2016 ; Conference date: 14-11-2016 Through 18-11-2016",

year = "2017",

doi = "10.1016/j.egypro.2017.03.1361",

language = "British English",

volume = "114",

pages = "2243--2251",

journal = "Energy Procedia",

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TY - JOUR

T1 - Effect of PEI Impregnation on the CO2 Capture Performance of Activated Fly Ash

AU - Dindi, Abdallah

AU - Quang, Dang Viet

AU - Nashef, Enas

AU - Abu Zahra, Mohammad

PY - 2017

Y1 - 2017

N2 - In the bid to develop cheaper adsorbents for CO2 capture applications, this work investigates the impact of polyethylenimine (PEI) impregnation on the performance of an activated fly ash material for CO2 capture. The fly ash was activated by fusing with NaOH and then subjecting to hydrothermal treatment to derive more porous zeolitic phases which were subsequently loaded with Polyethylenimine (PEI) using a wet impregnation technique. Two different PEI amines (MW∼600 and MW∼1200) were tested at varying concentrations (15%, 20%, and 25%) to study the effect of molecular weight of the PEI as well the loading percentage on the adsorption performance. The activation resulted in a significant increase in surface area from 11 m2/g in the fly ash to 270 m2/g in the activated fly ash, while the 25% PEI-600 sorbent was found to be the most efficient, giving the highest adsorption capacity of 26 mg/g adsorbent at 70 oC.

AB - In the bid to develop cheaper adsorbents for CO2 capture applications, this work investigates the impact of polyethylenimine (PEI) impregnation on the performance of an activated fly ash material for CO2 capture. The fly ash was activated by fusing with NaOH and then subjecting to hydrothermal treatment to derive more porous zeolitic phases which were subsequently loaded with Polyethylenimine (PEI) using a wet impregnation technique. Two different PEI amines (MW∼600 and MW∼1200) were tested at varying concentrations (15%, 20%, and 25%) to study the effect of molecular weight of the PEI as well the loading percentage on the adsorption performance. The activation resulted in a significant increase in surface area from 11 m2/g in the fly ash to 270 m2/g in the activated fly ash, while the 25% PEI-600 sorbent was found to be the most efficient, giving the highest adsorption capacity of 26 mg/g adsorbent at 70 oC.

KW - Amine Impregnation

KW - CO capture

KW - Fly Ash zeolite

KW - PEI

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U2 - 10.1016/j.egypro.2017.03.1361

DO - 10.1016/j.egypro.2017.03.1361

M3 - Conference article

AN - SCOPUS:85029656286

SN - 1876-6102

VL - 114

SP - 2243

EP - 2251

JO - Energy Procedia

JF - Energy Procedia

T2 - 13th International Conference on Greenhouse Gas Control Technologies, GHGT 2016

Y2 - 14 November 2016 through 18 November 2016

ER -

Effect of PEI Impregnation on the CO₂ Capture Performance of Activated Fly Ash

Abstract

Keywords

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