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Investigation of a novel composite sorbent for improved sorption characteristic

Lookup NU author(s): Dr Long Jiang, Dr Yiji Lu, Ke Tang, Professor Tony Roskilly, Dr Yaodong Wang, Ye Yuan, Dr Liwei Wang

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


Abstract

Novel composite sorbents are developed. Strontium chloride (SrCl2) is selected whereas expanded natural graphite and nanoparticle i.e. carbon coated nickel are integrated as the additive with different densities for the better heat transfer and sorption performance. Thermal properties such as thermal diffusivity and conductivity are investigated by the laser flash method. The sorption performance is tested by the unit which is especially designed. It is indicated that the highest thermal diffusivity could reach 2.242 mm2·s-1 when the density is 1000 kg·m-3 and testing temperature is 20oC. For different testing temperature and density, the thermal diffusivity range from 1.3 mm2·s-1 to 2.242 mm2·s-1. Also worth noting that the highest thermal conductivity could reach 2.5 mm2·s-1 for the environmental temperature. One paramount factor i.e. the global conversion rate of the novel composite SrCl2 is compared and analyzed under different working conditions. It can be found that the higher desorption temperature results in the faster variation of the global conversion rate. In addition, It takes about 15 minutes and 40 minutes to finish the reaction SrCl2 8-1 and 1-0 when the desorption temperature is 180oC and 130oC, respectively. For sorption process, it is indicated that the global conversion rate varies faster with the increase of the sorption temperature. When the global conversion is 0.7, it takes about 14 to 28 minutes when sorption temperature range from -5oC to 15oC.


Publication metadata

Author(s): Long J, Lu YJ, Tang K, Roskilly AP, Wang Y, Yuan Y, Wang RZ, Wang LW

Publication type: Article

Publication status: Published

Journal: Energy Procedia

Year: 2017

Volume: 142

Pages: 1455-1461

Print publication date: 01/12/2017

Online publication date: 31/01/2018

Acceptance date: 02/08/2017

ISSN (electronic): 1876-6102

Publisher: Elsevier BV

URL: https://doi.org/10.1016/j.egypro.2017.12.534

DOI: 10.1016/j.egypro.2017.12.534

Notes: 9th International Conference on Applied Energy, ICAE2017, 21-24 August 2017


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