Separation of gas mixtures by supported complexes

Abstract

The goal of this program is to determine the feasibility of solventdissolved coordination complexes for the separation of gas mixtures under bench-scale conditions. In particular, mixtures such as low-Btu gas will be examined for CO and Hz separation. Two complexes, Pdz(dpm) 2 Br 2 and Ru(CO)z(PPh 3) 3 , were examined in a benchscale apparatus for the separation of binary (CO-Nz or Hz-N2) and quinary {Hz, CO, co 2 , CH 4 , and Nz) mixtures. The separation of CON 2 was enhanced by the i i i

Separation of syngas components using a dissolved palladium complex

“…The use of a noncondensable stripper gas for these experiments allowed for reliable metering and analyses of both inlet and outlet streams. Details of the bench-scale apparatus and its operation have been described elsewhere (Nelson et al, 1986).…”

“…The initial investment in the palladium complex was estimated to be about $0.60 per 1000 standard cubic feet of annual H2 capacity (Nelson et al, 1986). For the CO case, the complex was estimated to contribute $0,046 per annual pound of capacity to investment costs.…”

Studies on reaction of manganese(II)-based coordinating complexes with oxygen

“…Further research centered around Co(II) salcomine (Co(II)bis(salicylidene)diaminoethane) (Adduci, 1976; Nelson et al, 1985). The complex bound oxygen preferentially to the cobalt center as a Co(III) superoxide structure (Nelson et al, 1986;Ochiai, 1973).…”

“…However, rigorous activation stages of the crystalline complex, slow oxygenation rates above 10 °C, and sensitivity to water plagued the complex and prevented commercialization (Adduci, 1976; Nelson et al, 1985). In addition, complex deterioration by an irreversible oxidation of a bridge peroxo species occurs.…”