Breakthrough performances of metal-exchanged nanotitanate ETS-2 adsorbents for room temperature desulfurization

Rezaei, Sabereh; Jarligo, Maria Ophelia; Wu, Lizhao; Kuznicki, Steven M.

doi:10.1016/j.ces.2014.11.041

Cited by 23 publications

(15 citation statements)

References 26 publications

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“…In another study of Rezai et al [41], ETS-2 was exchanged with different metals like Ag, Cu, Ca and Zn in order to investigate the effects of these metals on H 2 S adsorption and compare with an efficient commercial H 2 S adsorbent R3-11G. Ion exchange was experienced by mixing the ETS-2 with nitrate salts of Ag and Cu, and chloride salts of Zn and Ca.…”

Section: Engelhard Titanosilicate Zeolitementioning

confidence: 99%

Use of zeolites for the removal of H 2 S: A mini-review

Ozekmekci

Salkic

Fellah

2015

Fuel Processing Technology

197

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Section: Engelhard Titanosilicate Zeolitementioning

confidence: 99%

Use of zeolites for the removal of H 2 S: A mini-review

Ozekmekci

Salkic

Fellah

2015

Fuel Processing Technology

197

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“…Synthesis of ETS-2 and the ion exchange procedure to make Cu-ETS-2 were followed as explained previously. 17 The final solid powder was pressed into a binderless dense disk and then crushed and sieved with the 0.297 mm to 0.595 mm (No. 30 to 50 mesh) fraction for use in the column dynamic sulfidation test experiments.…”

Section: Methodsmentioning

confidence: 99%

Chemisorption of H₂S on Copper-ETS-2: Experiment and Modeling of a Packed Column

Rezaei

Avila

Kuznicki

2018

j nanosci nanotechnol

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Copper supported on Engelhard Titanosilicate-2 (ETS-2) showed to be a promising adsorbent for deep H 2 S removal (to sub-ppm levels) for gas purification applications at room temperature. Because of the high external surface area and the cation exchange capacity of ETS-2, Cu ions are highly dispersed and very accessible to H 2 S molecules. In this study, H 2 S column breakthrough experiments are analyzed by a dynamic model based on the rigorous mass balance equations applied to the fixed-bed. The proposed model also includes the chemical reaction term, which is affected by the deactivation of the solid phase. Temperature-programmed desorption tests provided insight on the material characterization as well as on the relative magnitudes of the H 2 S-material interactions.

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“…To further improve the H 2 S adsorption capacity and utilization of loaded metal-oxide, a series of Na-ETS-2 sorbents exchanged with Ag, Ca, Cu, and Zn were prepared by mixing the ETS-2 with Ag/Cu nitrate and Zn/Ca chloride in the solution . The high external surface area and cation exchange capacity of ETS-2 allowed the high dispersion of active ions which were easily available to H 2 S molecules.…”

Section: Zeolitementioning

confidence: 99%

Removal of Hydrogen Sulfide from Gas Streams Using Porous Materials: A Review

Khabazipour

Anbia

2019

Ind. Eng. Chem. Res.

142

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Removal of hydrogen sulfide (H2S) released from various source processes is crucial because this compound can cause corrosion and environmental damage even at low concentration levels. The porous materials offer a wide variety of chemical architectures with tunable pore size and high surface area that are very promising for the adsorption of H2S molecules. This review attempts to comprehensively compile the current studies in the literature on hydrogen sulfide removal in gas purification processes using highly porous materials such as zeolites, carbon materials, activated carbon, porous metal oxides, mesoporous silica, and metal–organic frameworks as highly effective adsorbents. Possible interactions between the H2S and active adsorption sites of these materials are also discussed. Surface functionality and porosity play a crucial role in the H2S removal performance by virgin or modified porous materials. However, tailoring these materials to obtain high adsorption capacity, good selectivity, and suitable stability and regenerability and to retain structural integrity under high temperatures or in the presence of moisture are still the major challenges in the practical applications. According to the extensive background knowledge for H2S removal by different porous materials in this review, it can be expected that readers will gain insight into the further developments in this area and the design of new cost-effective sorbents.

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Breakthrough performances of metal-exchanged nanotitanate ETS-2 adsorbents for room temperature desulfurization

Cited by 23 publications

References 26 publications

Use of zeolites for the removal of H 2 S: A mini-review

Use of zeolites for the removal of H 2 S: A mini-review

Chemisorption of H₂S on Copper-ETS-2: Experiment and Modeling of a Packed Column

Removal of Hydrogen Sulfide from Gas Streams Using Porous Materials: A Review

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Breakthrough performances of metal-exchanged nanotitanate ETS-2 adsorbents for room temperature desulfurization

Cited by 23 publications

References 26 publications

Use of zeolites for the removal of H 2 S: A mini-review

Use of zeolites for the removal of H 2 S: A mini-review

Chemisorption of H2S on Copper-ETS-2: Experiment and Modeling of a Packed Column

Removal of Hydrogen Sulfide from Gas Streams Using Porous Materials: A Review

Contact Info

Product

Resources

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Chemisorption of H₂S on Copper-ETS-2: Experiment and Modeling of a Packed Column