New adsorbents for olefin-paraffin and acetylene separations by {pi}-complexation

Conference · Tue Oct 01 04:00:00 EDT 1996

OSTI ID:370539

Yang, R T ^[1]; Kikkinides, E S; Chen, Jianpin; Foldes, R ^[1]

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1. State Univ. of New York, Buffalo, NY (United States)

New adsorbents for olefin-paraffin separation have been synthesized by effective dispersion of Ag(I) and Cu(I) cations on substrates that have hydrocarbon-phobic surfaces. These cations bind olefin molecules by a {pi}-complexation bond - a weak chemical bond. For acetylene separations, we have prepared a new type of sorbent by monolayer dispersion of Ni{sup 2+} or Co{sup 2+} on {gamma}-Al{sub 2}O{sub 3} which has high selectivity and reversibility for acetylene (C{sub 2}H{sub 2}) over other hydrocarbons, also through {pi}-complexation. The {pi}-complexation bonds, as well as the effects of anions and substrates on these bonds, are understood from molecular orbital calculation results.

• OSTI ID: 370539
• Report Number(s): CONF-960376--
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ACETYLENE
ADSORBENTS
ALUMINIUM OXIDES
CHEMICAL FEEDSTOCKS
COBALT
COMPLEXES
HYDROCARBONS
MOLECULAR ORBITAL METHOD
NICKEL
PARAFFIN
PETROCHEMICALS
SEPARATION PROCESSES