Comparative Evaluation of Different MOF and Non-MOF Porous Materials for SO2 Adsorption and Separation Showing the Importance of Small Pore Diameters for Low-Pressure Uptake

被引：63

作者：

Brandt, Philipp ^{[1
]}

Nuhnen, Alexander ^{[1
]}

Ozturk, Secil ^{[1
]}

Kurt, Gulin ^{[1
]}

Liang, Jun ^{[1
,2
]}

Janiak, Christoph ^{[1
,2
]}

机构：

[1] Heinrich Heine Univ Dusseldorf, Inst Anorgan & Analyt Chem, D-40204 Dusseldorf, Germany

[2] Shenzhen Polytech, Hoffmann Inst Adv Mat, 7098 Liuxian Blvd, Shenzhen 518055, Peoples R China

来源：

ADVANCED SUSTAINABLE SYSTEMS | 2021年 / 5卷 / 04期

关键词：

active carbon; adsorption; metal-organic frameworks; MOFs; porous materials; sulfur dioxide; zeolites; METAL-ORGANIC FRAMEWORKS; SELECTIVE CATALYTIC-REDUCTION; COVALENT TRIAZINE FRAMEWORK; SULFUR-DIOXIDE; CARBON-DIOXIDE; KETJEN BLACK; CO2; CAPTURE; WATER; NANOPARTICLES; PERFORMANCE;

D O I：

10.1002/adsu.202000285

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The search for adsorbents for flue gas desulfurization processes is a current interest. For the first time, a comparative experimental study of SO2 adsorption by porous materials including the prototypical metal-organic frameworks NH2-MIL-101(Cr), Basolite F300 (Fe-1,3,5-BTC), HKUST-1 (Cu-BTC), the zeolitic imidazolate frameworks (ZIF)-8, ZIF-67, the alumosilicate Zeolite Y, the silicoaluminumphosphate (SAPO)-34, Silica gel 60, the covalent triazine framework (CTF)-1, and the active carbon Ketjenblack is carried out. Microporous materials with pore sizes in the range of 4-8 angstrom or with nitrogen heterocycles are found to be optimal for SO2 uptake in the low-pressure range. The SO2 uptake capacity at 1 bar correlates with the Brunauer-Emmett-Teller-surface area and pore volume rather independently of the surface microstructure. Zeolite Y and SAPO-34 are stable toward humid SO2. The materials Zeolite Y and CTF-1(600) show the most promising SO2/CO2 selectivity results with an ideal adsorbed solution theory selectivity in the range of 265-149 and 63-43 with a mole fraction of 0.01-0.5 SO2, respectively, at 293 K and 1 bar.

引用

页数：10

共 93 条

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