Effect of the Ni-to-CaO Ratio on Integrated CO[sub.2] Capture and Direct Methanation

Direct methanation in an integrated CO[sub.2] capture and utilization system has recently gained considerable attention as a promising approach owing to its simplified process and lower requirement of total thermal energy as compared to conventional CO[sub.2] capture and utilization techniques. This...

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Published in:Catalysts 2023-07, Vol.13 (8)
Main Authors: Woo, Jin-Hyeok, Jo, Seongbin, Kim, Ju-Eon, Kim, Tae-Young, Son, Han-Dong, Ryu, Ho-Jung, Hwang, Byungwook, Kim, Jae-Chang, Lee, Soo-Chool, Gilliard-AbdulAziz, Kandis Leslie
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Language:English
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Energy minerals
Fossil fuels
Global temperature changes
Lime
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container_issue 8
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container_title Catalysts
container_volume 13
creator Woo, Jin-Hyeok
Jo, Seongbin
Kim, Ju-Eon
Kim, Tae-Young
Son, Han-Dong
Ryu, Ho-Jung
Hwang, Byungwook
Kim, Jae-Chang
Lee, Soo-Chool
Gilliard-AbdulAziz, Kandis Leslie
description Direct methanation in an integrated CO[sub.2] capture and utilization system has recently gained considerable attention as a promising approach owing to its simplified process and lower requirement of total thermal energy as compared to conventional CO[sub.2] capture and utilization techniques. This study formulated macroporous structured Ni/CaO catal-sorbents by controlling the Ni-to-CaO ratio. The influence of this ratio on the CO[sub.2] capture (capacity and kinetics) and direct methanation performances (productivity and kinetics) was evaluated at 500 °C. CO[sub.2] capture combined with direct methanation experiments revealed that 10Ni/CaO exhibited the best CO[sub.2] capture capacity, kinetics, and CH[sub.4] productivity with the thermal stability of Ni and CaO species.
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subjects Energy minerals
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Global temperature changes
Lime
title Effect of the Ni-to-CaO Ratio on Integrated CO[sub.2] Capture and Direct Methanation
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