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