Sol-gel synthesis of Li4SiO4 nanoparticles for CO2 capture at high temperature
Name
192.pdf
Description
Published version
Size
1.44 MB
Format
Adobe PDF
Checksum (MD5)
0fafeea2214ffd1b21a9a876ec6f090d
Author(s)
Harada, Takuya
Hatton, T. Alan
Alternative Title
Sol-gel synthesis of Li[subscript 4]SiO[subscript 4] for CO[subscript 2] capture at high temperature
Date Issued
2017
Journal
Chemical Engineering Transactions
Publisher
AIDIC
Citation
Puccini; Monica, Takuya Harada, Eleonora Stefanelli, Sandra Vitolo, and T. Alan Hatton, "Sol-gel synthesis of Li4SiO4 nanoparticles for CO2 capture at high temperature." Chemical Engineering Transactions 57 (2017): p. 1147-52 doi 10.3303/CET1757192 ©2017 Author(s)
Version
Final published version
Abstract
Removing carbon dioxide from industrial effluents (i.e. flue gas) via solid sorbents is a potential greenhouse gas mitigation strategy. Lithium orthosilicate (Li[subscript 4]SiO[subscript 4]) is one of the most promising materials for CO2capture at high temperature (500-700 °C). In this study, the non-hydrolytic sol-gel technique was used to synthesized Li[subscript 4]SiO[subscript 4] nanoparticles for improving lithium silicate features as solid sorbent for carbon dioxide. The CO[subscript 2] sorption properties of the obtained nanoparticles were investigated by using a thermal gravimetric analyzer (TGA) in a controlled gas flow environment at CO[subscript 2] partial pressure of 0.6 atm and at 700 °C. Li[subscript 4]SiO[subscript 4] nanoparticles with average diameter less than 100 nm aggregated in clusters less than 500 nm were obtained. An amount of adsorbed carbon dioxide of 6.9 mmol of CO[subscript 2]/g sorbent, corresponding to an 82.4 % conversion of lithium orthosilicate, was reached. The promising results could be related to high surface area of nano-size material synthesized by sol-gel process.©2020
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.3303/CET1757192
