Synthesis of CaO-based sorbents through incorporation of alumina/aluminate and their CO2 capture performance was written by Zhou, Zhiming;Qi, Yang;Xie, Miaomiao;Cheng, Zhenmin;Yuan, Weikang. And the article was included in Chemical Engineering Science in 2012.Category: alcohols-buliding-blocks This article mentions the following:
CaO-based CO2 sorbents derived from various Ca and Al precursors were synthesized using a wet mixing method and characterized by x-ray diffraction (XRD), SEM, differential scanning calorimetry (DSC), thermogravimetric anal. (TGA), and N2 adsorption/desorption. As-synthesized sorbents consisted of active CaO and inert support materials which could be Al2O3, Ca12Al14O33, or Ca9Al6O18, depending on their Ca and Al precursors used during synthesis. A formation mechanism for inert support materials is proposed. Compared to pure CaO, most synthetic CaO-based sorbents exhibited much higher CO2 capture capability and stability over multiple carbonation/calcination cycles. This was ascribed to the relatively high sp. surface area of the sorbents, their bimodal pore size distribution with a fair number of small pores, and the inert support material which could effectively prevent or delay CaO particle sintering. Among the synthetic sorbents, CaO-Ca9Al6O18, with an 80 weight percent CaO content derived from calcium citrate and aluminum nitrate exhibited the best CO2 capture performance, and is expected to be used for the sorption-enhanced steam CH4 reforming process. In the experiment, the researchers used many compounds, for example, Calcium 2-hydroxypropanoate pentahydrate (cas: 5743-47-5Category: alcohols-buliding-blocks).
Calcium 2-hydroxypropanoate pentahydrate (cas: 5743-47-5) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Category: alcohols-buliding-blocks
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts