2014
DOI: 10.1016/j.micromeso.2014.02.007
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A high-performance adsorbent for hydrogen sulfide removal

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2014
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Cited by 64 publications
(29 citation statements)
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“…Zn, Fe, Ca, Mn, and V metal oxides have been studied rather extensively in the literature as adsorbents for H 2 S removal at elevated temperatures (>573 K). 8,[10][11][12][13][14][15][16] Despite possessing favorable thermodynamics (ΔG T=298 = 126 kJ mol -1 , -76 kJ mol -1 , -74 kJ mol -1 and -136 kJ mol -1 for CuO, ZnO, Fe 2 O 3 , and NiO, respectively) 17 these oxides when reacted with H 2 S at room temperature suffer from low removal capacities due to (1) slow ion migrations to and from the lattice structure, (2) sintering, 18 (3) mechanical disintegration, 18 (4) diffusional resistance, 19,20 and/or (4) limitations in the number of adsorption sites.…”
Section: Introductionmentioning
confidence: 99%
“…Zn, Fe, Ca, Mn, and V metal oxides have been studied rather extensively in the literature as adsorbents for H 2 S removal at elevated temperatures (>573 K). 8,[10][11][12][13][14][15][16] Despite possessing favorable thermodynamics (ΔG T=298 = 126 kJ mol -1 , -76 kJ mol -1 , -74 kJ mol -1 and -136 kJ mol -1 for CuO, ZnO, Fe 2 O 3 , and NiO, respectively) 17 these oxides when reacted with H 2 S at room temperature suffer from low removal capacities due to (1) slow ion migrations to and from the lattice structure, (2) sintering, 18 (3) mechanical disintegration, 18 (4) diffusional resistance, 19,20 and/or (4) limitations in the number of adsorption sites.…”
Section: Introductionmentioning
confidence: 99%
“…Also, as shown in Figure b, pore volume of the sorbent after adsorption was lower than two other conditions indicating the coverage of the surface in the sorbent structure. According to the results, it could be said that the optimized sorbent showed a good capability toward adsorption of hydrogen sulphide at 25 °C in comparison with other promoted sorbents …”
Section: Resultsmentioning
confidence: 97%
“…One strategy to enhance their gas capture performances and decrease the operating temperatures is to support these solids on a porous matrix, such as stable mesoporous materials (i.e., MCM-41 and SBA−15). Thus, this method introduces new perspectives to consider in order to accomplish sufficient gas removal although, in most cases, increases the implementation costs [ 20 ]. Another way is the use of metal hydroxide [ 21 ] or oxohydroxide [ 22 ] composites, which offer the opportunity of operating in lower temperatures in comparison to those of pure metal oxides, but with average adsorption capacities.…”
Section: Introductionmentioning
confidence: 99%