Selective hydrogenation of maleic anhydride to gamma-butyrolactone over Pd/Al2O3 catalyst using supercritical CO2 as solvent.
A selective hydrogenation of maleic anhydride to either gamma-butyrolactone or succinic anhydride over simple Pd/Al2O3 catalyst under supercritical CO2 medium is described for the first time which has considerable promise for both lab-scale as well as industrial selective hydrogenations of low vapor pressure compounds without employing environmentally harmful organic solvents.
Pillai
Unnikrishnan R
UR
National Risk Management Research Laboratory (NRMRL), Sustainable Technology Division, MS 443, United States Environmental Protection Agency (US-EPA), Cincinnati, Ohio 45268, USA.
Sahle-Demessie
Endalkachew
E