草酸二甲酯加氢合成乙二醇反应研究.pdf

! 34 0! PETROCHEM ICAL T ECHNO LOGY 2007 36 4 , , , ( , 2002 37) [ ] , C u / S iO 2 , 190 ~ 2 10 1~ 3 M P a( DM O ) ( ) 40 ~ 120DM O 6. 0 ~ 25. 0 mm o l / ( g! h) , DM O , DM O DM O , 2 M P a, 205~ 2 10 , 80 ~ 100, DM O 10. 0 mm o l / ( g ! h ), DM O L angm u ir- H in she wl ood, , , , DM O [ ] ; ; ; /; [ ] 1000- 8144 ( 2007) 04 - 0340- 05 [ ] TQ 223. 162 [ ] A Hydrogenation ofDimethylOxalate to EthyleneGlycol Zhang Q iyun, H uang W eijie, W en F eng, X iao W ende ( S tate K ey L abo tatory of Ch em ica l Eng ineerin g, Eest C h ina U n iv ers ity of Science and T echno logy, Sh angh ai 200237, C h ina) [Abstract] H ydrogenation o f d mi ethy l oxa la te( DM O ) to e thy lene g lyco l( EG ) w as inve stig ated in a tubular m icro reac to r on C u /S iO2 cata ly st. E f fects o f tem p erature, pressure, m o le rat io o f H2 to DM O and DM O space ve lo city on react ion w ere stud ied in rang es o f 190- 210 , 1- 3M Pa, 40 - 120 and 6. 0 - 25. 0 mm o l/ ( g ! h) , respective ly. B o th DM O conversion and EG y ie ld increased at higher tem p erature, higher pressure, larger m o le ratio o f H2 to DM O and low er DM O sp ace ve lo city, but se lectiv ity to byproduc t a lso increased. The optmi ized reaction condition s w ere pre ssure 2 M Pa, tem p erature 205- 210 , m o le ratio o f H2 to DM O 80 - 100 and DM O space v eloc ity 10. 0 mm o l/ ( g ! h) . L angm u ir - H in she wl ood m echan ism m ode l w ith non - dissoc iative hydrogen adso