01649nas a2200157   4500008004100000022001400041245012600055210006900181260007100250300001400321490000700335520097300342100002101315700002901336856012601365       2012                        eng d  a1083-616000aContinuous dehydration and hydrogenolysis of glycerol over non-chromium copper catalyst: laboratory-scale process studies0 aContinuous dehydration and hydrogenolysis of glycerol over nonch  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcMAY  a1043-10520 v163 a<p>A non-chromium Cu:Al catalyst was developed for glycerol dehydration under N-2 atmosphere to acetol and hydrogenolysis to 1,2-propanediol (1,2-PDO). Among the various copper-based catalysts screened in this work, Cu:Al-1 catalyst showed the highest activity and acetol selectivity in water medium, whereas transfer hydrogenation in 2-propanol as the reaction medium led to the formation of 1,2-PDO (10-38%). The same catalyst was also found to catalyze the direct hydrogenolysis of glycerol to 1,2-PDO. Time on stream activity (TOS) of our Cu:Al-1 catalyst for both continuous dehydration and hydrogenolysis of glycerol was found to be 400 h with an average glycerol conversion of 90% and 65%, respectively. Maximum acetol selectivity was 55% while 1,2-PDO selectivity was 91% in dehydration and hydrogenolysis reactions separately. Effects of various reaction conditions on conversion, selectivity, and global rates of the two processes were also investigated.</p>1 aMane, Rasika, B.1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/continuous-dehydration-and-hydrogenolysis-glycerol-over-non-chromium-copper-catalyst-0