logo

PSA USING SUPERIOR ADSORBENTS

PDF Publication Title:

PSA USING SUPERIOR ADSORBENTS ( psa-using-superior-adsorbents )

Previous Page View | Next Page View | Return to Search List

Text from PDF Page: 167

It is worth noting here that other substrates were tried with no success. Several types of intercalated clays (or pillared interlayered clays, PILCs), with varying pore sizes and cation exchange capacities were used. In each case the final synthesized material was the familiar red color of the unoxygenated Co(fluomine); but contained no O2-binding capacity over that of the PILC that contained no complex. Co(fluomine) was also synthesized in type X (Si/Al 1.25) and in type Y zeolites. The O2-binding capacity and the general aspect of the isotherms were the same as for that of the type X (Si/Al 1). The Nature of the Bond. Although the O2-binding transition metal complexes have been extensively studied, the nature of their bond formation has long been the subject of some controversy. Vaska showed that almost all currently known transition metal dioxygen complexes can be divided into two types according to the characteristics of the dioxygen ligand.29 The types are the (type I) superoxo (O2-) and the (type II) peroxo (O22-) complexes. These complexes are further classified as to whether the dioxygen is bound to one metal atom (type a) or bridges two metal atoms (type b). These are shown in Figure 9. Several previous studies have attempted to attach O2-binding complexes to substrates. Others have attempted to build the complex within the supercage of type X or Y zeolite, the so called “ship in a bottle” synthesis. In the earliest work of Drago and coworkers the most abundant cobalt species formed in their synthesis was the ion [Co(CN)6]-3, which does not have oxygen-binding capacity.22,23 However, a limited amount of the O2-binding complex [Co(CN)4]-2 was also formed. The EPR spectrum of the deoxygenated samples is significantly different from that of the oxygenated sample that contains the dioxygen adduct. From EPR spectrum of the deoxygenated sample, Taylor et al. were able to 167

PDF Image | PSA USING SUPERIOR ADSORBENTS

psa-using-superior-adsorbents-167

PDF Search Title:

PSA USING SUPERIOR ADSORBENTS

Original File Name Searched:

789503.pdf

DIY PDF Search: Google It | Yahoo | Bing

CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info

Heat Pumps CO2 ORC Heat Pump System Platform More Info

CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP