期刊
CHEMICAL ENGINEERING JOURNAL
卷 429, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.132480
关键词
Adsorption separation; Ultramicroporous material; SO2; Aromatic sulfides; Porous adsorbent
资金
- National Natural Science Foundation of China [21773223, 22178280]
- Natural Science Basic Research Plan in Shaanxi Province of China [2020JM-005, 2020JQ-017, 2019JLZ-10]
- Fundamental Research Funds for the Central Universities [xzy012019027]
- Young Talent Support Plan of Xi'an Jiaotong University [HG6J001]
- 1000-Plan program of Shaanxi Province
The three-dimensional ultramicroporous porous organic framework TAM-POF showed excellent desulfurization performance in eliminating SO2 in flue gases and aromatic sulfides in liquid fuels, achieving record-high dynamic adsorption capacity and selectivities. The strong interaction between adsorbents and TAM-POF, as well as appropriate pore apertures, were identified as the main reasons for its outstanding performance.
The governance of sulfur dioxide emissions in the atmosphere is a global challenge. Herein, a three-dimensional ultramicroporous porous organic framework named TAM-POF with high surface areas, abundant accessible N sites and suitable pore size was synthesized for elimination of SO2 in flue gases and aromatic sulfides in liquid fuels. The adsorption and separation performance of TAM-POF is investigated by equilibrium gas adsorption, instant adsorption rates and column breakthrough experiments. A record-high SO2 dynamic adsorption capacity of 2.92 mmol g-1 in ternary gas mixture (0.5/10/89.5, v/v/v, SO2/CO2/N2) and SO2/CO2 (124) and 3-methylthiophene/n-octane (42) selectivities were achieved in TAM-POF. The strong interaction between adsorbents and TAM-POF, as well as appropriate pore apertures are the main reason for their excellent desulfurization performance, which are also evidenced by theory simulation.
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