title: Three-step calcination synthesis of high-purity Li8ZrO6 with CO2 absorption properties.
abstract: Li(8)ZrO(6) contains a high lithium content and may bear a great ability of CO(2) absorption, yet the reports about the properties of CO(2) absorption on Li(8)ZrO(6) are few to date for its difficulty in production. In this paper, high-purity Li(8)ZrO(6) is synthesized via a three-step calcination method combined with an effective lithium source and a suitable initial Li/Zr molar ratio. The produced Li(8)ZrO(6) possesses a great CO(2) absorption capacity of about 53.98 wt % at 998 K, which could be well-maintained in a wide range of CO(2) partial pressures of 0.1-1.0 bar although it decreased gradually during the multicycle process of CO(2) absorption-desorption in a 10% CO(2) feed stream because of the high working temperature. These properties imply that Li(8)ZrO(6) may be a new option for high-temperature CO(2) capture applied in industrial processes such as a steam methane reformer.
authors.affiliation: State Key Laboratory of Chemical Engineering, College of Chemical Engineering, East China University of Science and Technology, Shanghai, People's Republic of China.
authors.forename: Xian-Sheng
authors.initials: XS
authors.lastname: Yin
authors.forename: Qin-Hui
authors.initials: QH
authors.lastname: Zhang
authors.forename: Jian-Guo
authors.initials: JG
authors.lastname: Yu