Development of Ca/KIT-6 adsorbents for high temperature CO2 capture

Hongman Sun; Christopher M.A. Parlett; Mark A. Isaacs; Xiaotong Liu; George Adwek; Jianqiao Wang; Boxiong Shen; Jun Huang; Chunfei Wu

doi:10.1016/j.fuel.2018.07.044

Development of Ca/KIT-6 adsorbents for high temperature CO₂ capture

Hongman Sun, Christopher M.A. Parlett, Mark A. Isaacs, Xiaotong Liu, George Adwek, Jianqiao Wang, Boxiong Shen, Jun Huang, Chunfei Wu

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

Abstract

The incorporation of CaO into an inert porous solid support has been identified as an effective approach to improve the stability of adsorbents for CO₂ capture. In this work, we focus on enhancing the capacity of carbon capture and cyclic stability of CaO by impregnating CaO particles into a three-dimensional mesoporous silica (KIT-6) support. At a low CaO loading, the three-dimensional mesoporous support was filled with CaO nano-particles. The further increase of CaO loading resulted in the aggregation of CaO particles on the external surface of the support material, as identified by electron microscopy analysis. These CaO/KIT-6 adsorbents show excellent high-temperature CO₂ carbonation/calcination stability over multiple cycles of CaO carbonation and calcination. The enhancement of the performance of carbon capture is attributed to the interaction between CaO and the silica skeleton of KIT-6 through the formation of interfacial CaSiO₃ and Ca₂SiO₄ which enhanced the resistance of CaO sintering.

Original language	English
Pages (from-to)	1070-1076
Number of pages	7
Journal	Fuel
Volume	235
Early online date	30 Aug 2018
DOIs	https://doi.org/10.1016/j.fuel.2018.07.044
Publication status	Published - 1 Jan 2019

Keywords

Adsorbent
CaO
CO capture
KIT-6
Mesoporous silica

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.fuel.2018.07.044

UoMaH: The University of Manchester at Harwell
Lawrence, J. (PI), Burnett, T. (PI), Baker, M. (Researcher), Eastwood, D. (Researcher), Hunt, S. (Researcher), Yan, K. (Researcher), Khan, A. (Researcher), Ma, L. (Researcher), Mirihanage, W. (Researcher), Mu, T. (Researcher), Parlett, C. (Researcher), Price, C. (Researcher), Freitas, D. (Researcher), Bourne, N. (Researcher), Reinhard, C. (Support team), Lewis-Fell, J. (Technical team), Nonni, S. (Technical team), Rollings, B. (Technical team), Sinclair, L. (Technical team) & Batts, S. (Support team)
1/01/18 → …
Project: Other

Cite this

@article{e6132fc0eb3147c08abc20c4f57d971a,

title = "Development of Ca/KIT-6 adsorbents for high temperature CO2 capture",

abstract = "The incorporation of CaO into an inert porous solid support has been identified as an effective approach to improve the stability of adsorbents for CO2 capture. In this work, we focus on enhancing the capacity of carbon capture and cyclic stability of CaO by impregnating CaO particles into a three-dimensional mesoporous silica (KIT-6) support. At a low CaO loading, the three-dimensional mesoporous support was filled with CaO nano-particles. The further increase of CaO loading resulted in the aggregation of CaO particles on the external surface of the support material, as identified by electron microscopy analysis. These CaO/KIT-6 adsorbents show excellent high-temperature CO2 carbonation/calcination stability over multiple cycles of CaO carbonation and calcination. The enhancement of the performance of carbon capture is attributed to the interaction between CaO and the silica skeleton of KIT-6 through the formation of interfacial CaSiO3 and Ca2SiO4 which enhanced the resistance of CaO sintering.",

keywords = "Adsorbent, CaO, CO capture, KIT-6, Mesoporous silica",

author = "Hongman Sun and Parlett, {Christopher M.A.} and Isaacs, {Mark A.} and Xiaotong Liu and George Adwek and Jianqiao Wang and Boxiong Shen and Jun Huang and Chunfei Wu",

year = "2019",

month = jan,

day = "1",

doi = "10.1016/j.fuel.2018.07.044",

language = "English",

volume = "235",

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journal = "Fuel",

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TY - JOUR

T1 - Development of Ca/KIT-6 adsorbents for high temperature CO2 capture

AU - Sun, Hongman

AU - Parlett, Christopher M.A.

AU - Isaacs, Mark A.

AU - Liu, Xiaotong

AU - Adwek, George

AU - Wang, Jianqiao

AU - Shen, Boxiong

AU - Huang, Jun

AU - Wu, Chunfei

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The incorporation of CaO into an inert porous solid support has been identified as an effective approach to improve the stability of adsorbents for CO2 capture. In this work, we focus on enhancing the capacity of carbon capture and cyclic stability of CaO by impregnating CaO particles into a three-dimensional mesoporous silica (KIT-6) support. At a low CaO loading, the three-dimensional mesoporous support was filled with CaO nano-particles. The further increase of CaO loading resulted in the aggregation of CaO particles on the external surface of the support material, as identified by electron microscopy analysis. These CaO/KIT-6 adsorbents show excellent high-temperature CO2 carbonation/calcination stability over multiple cycles of CaO carbonation and calcination. The enhancement of the performance of carbon capture is attributed to the interaction between CaO and the silica skeleton of KIT-6 through the formation of interfacial CaSiO3 and Ca2SiO4 which enhanced the resistance of CaO sintering.

AB - The incorporation of CaO into an inert porous solid support has been identified as an effective approach to improve the stability of adsorbents for CO2 capture. In this work, we focus on enhancing the capacity of carbon capture and cyclic stability of CaO by impregnating CaO particles into a three-dimensional mesoporous silica (KIT-6) support. At a low CaO loading, the three-dimensional mesoporous support was filled with CaO nano-particles. The further increase of CaO loading resulted in the aggregation of CaO particles on the external surface of the support material, as identified by electron microscopy analysis. These CaO/KIT-6 adsorbents show excellent high-temperature CO2 carbonation/calcination stability over multiple cycles of CaO carbonation and calcination. The enhancement of the performance of carbon capture is attributed to the interaction between CaO and the silica skeleton of KIT-6 through the formation of interfacial CaSiO3 and Ca2SiO4 which enhanced the resistance of CaO sintering.

KW - Adsorbent

KW - CaO

KW - CO capture

KW - KIT-6

KW - Mesoporous silica

U2 - 10.1016/j.fuel.2018.07.044

DO - 10.1016/j.fuel.2018.07.044

M3 - Article

AN - SCOPUS:85052540576

SN - 0016-2361

VL - 235

SP - 1070

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JO - Fuel

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