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Hydrogen sulfide adsorption by zinc oxide-impregnated zeolite (synthesized from Malaysian kaolin) for biogas desulfurization

Abdullah, Abdul Hadi and Mat, Ramli and Somderam, Sathoshini and Abd. Aziz, Azharin Shah and Mohamed, Amri (2018) Hydrogen sulfide adsorption by zinc oxide-impregnated zeolite (synthesized from Malaysian kaolin) for biogas desulfurization. Journal of Industrial and Engineering Chemistry, 65 . pp. 334-342. ISSN 1226-086X

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Official URL: http://dx.doi.org/10.1016/j.jiec.2018.05.003

Abstract

The adsorption of hydrogen sulfide (H2S) from the gas stream in a fixed-bed reactor has been investigated using zinc oxide (10–30 wt% loading) impregnated on Na-A zeolite prepared from local kaolin. The adsorbents obtained were characterized by XRF, XRD, FTIR, nitrogen adsorption and SEM. Reductions of micropore surface area and micropore volume of Na-A zeolite were observed after modification with zinc oxide. H2S adsorption capacity was the highest, 15.75 mg S/g sorbent, when 20 wt% ZnO was loaded on Na-A zeolite. Reduction in adsorption capacity was observed when wt% ZnO increased above 20 wt%.

Item Type:Article
Uncontrolled Keywords:adsorption, biogasHydrogen sulfide, Kaolin, Na-A zeolite, Zinc oxide
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:85441
Deposited By: Yanti Mohd Shah
Deposited On:30 Jun 2020 16:45
Last Modified:30 Jun 2020 16:45

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