Inorganic cation-tailored “trapdoor” effect of the silicoaluminophosphate zeolite for highly selective CO2 separation
نویسندگان
چکیده
منابع مشابه
A new tetrazolate zeolite-like framework for highly selective CO2/CH4 and CO2/N2 separation.
A new tetrazolate zeolite-like framework with a diamond topology, UTSA-49, was synthesized. UTSA-49 shows high selectivity for CO2/CH4 and CO2/N2 indicating a synergistic effect of the suitable pore size/shape and functional groups.
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Zeolite Rho is able to successfully separate CO(2) from CH(4) with the highest selectivity ever observed on the basis of pore diameter and surface polarity. The adsorption of CO(2) provokes structural changes in the zeolite Rho.
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In this work, the main aspects regarding the permeation of mixtures containing CO2 and permanent gases such as H2 , N2 and CH4 through zeolite membranes have been investigated, focusing on the description of the mass transport mechanisms taking place inside the pores. First, a brief overview about the performance of the main zeolite membranes used in gas separation (e.g. DDR, CHA, AEI, FAU, etc...
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Nitrogen oxides (NOx: NO, NO2) are a concern due to their adverse health effects. Diesel engine transport sector is the major emitter of NOx. The regulations have been strengthened and to comply with them, one of the two methods commonly used is the selective catalytic reduction of NOx by NH3 (NH3-SCR), NH3 being supplied by the in-situ hydrolysis of urea. Efficiency and durability of the catal...
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ژورنال
عنوان ژورنال: Chemical Science
سال: 2021
ISSN: 2041-6520,2041-6539
DOI: 10.1039/d1sc00619c