Carbon dioxide capture under postcombustion conditions using amine-functionalized SBA-15: Kinetics and multicyclic performance

Dey, Runa; Gupta, Rajender; Samanta, Arunkumar

doi:10.1080/01496395.2018.1461114

Cited by 9 publications

(1 citation statement)

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“…The mean pore size of the SBA‐15 support material was 6.4 nm, which is estimated from the desorption isotherm using the Barrett–Joyner–Halenda (BJH) method. The detailed textural properties of the calcined SBA‐15 silica support determined by the nitrogen adsorption/desorption method have been published in the study by Dey et al The copper oxide loading by impregnation reduced the BET surface area due to clogging of the pore channels.…”

Section: Resultsmentioning

confidence: 99%

Performance and Kinetic Evaluation of Synthesized CuO/SBA‐15 Oxygen Carrier for Chemical Looping with Oxygen Uncoupling

et al. 2019

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Chemical looping oxygen uncoupling (CLOU), a variant of chemical looping combustion (CLC), is one of the most promising combustion technologies for inherent separation and feasible capture of carbon dioxide. Herein, synthesized SBA‐15, a highly ordered mesoporous silica support, is used to host CuO for developing a new variant of an oxygen‐carrier material. Based on thermoanalytical evaluations, a typical CuO/SBA‐15 composition with 36 mass% CuO loading is identified as highly suitable with an average oxygen transport capacity of 3.61%. In addition, extensive studies along with model‐dependent kinetic evaluations are carried out using isothermal thermogravimetric data for the reduction–reoxidation of CuO/SBA‐15. It is observed that the Avrami‐Erofeev random nucleation and subsequence growth model (A2) fitted well for the reduction reaction, while the 3D diffusion model (D3) described suitably the reoxidation reaction in the temperature range of 800–950 °C. Reduction–reoxidation rate data and kinetic information derived from corresponding isothermal conversion curves can contribute immensely to design and establish operational strategies for interconnected CLOU reactors.

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Section: Resultsmentioning

confidence: 99%