Hydrogenation of 10% aqueous solution of 3-hydroxypropanal (HPA) was adiabatically carried out over cylindrical Ni/SiO2/Al2O3-catalyst pellets ( 0.8 + 5 mm) in a trickle bed ( 76 5200 mm) at 2.6 to 8.0 MPa. The concentration and temperature profiles in the trickle-bed were measured at...
The hydrogenation of 3-hydroxypropanal (HPA) to 1,3-propanediol (PD) over Ni/SiO2/Al2O3 catalyst powder was carried out at 318−353 K and 2.60−5.15 MPa in a batchwise-operated stirred autoclave. A kinetic model which can well describe the reactions of this process was developed....
CuiBaojun,LiMeng.Thecatalystsappliedintheprepara tionof1,3 propanediolbyhydrogenating3 hydroxypropanal andthecondition forhydrogenation[J].Chemistryand Adhesion,2005,27(1):30-33.崔宝军,李猛.3-羟基丙醛加氢制1,3-丙二醇催化剂及加氢条件[J]. 化学与黏合.2005(01)崔宝军 李猛.3-羟基丙醛加氢制1;3-...
Process for preparation of 1,3-propanediol via hydrogenation of 3-hydroxypropanal[P].US:5786524 1998.Powell Joseph B.,Pledger William R.,et al.Process for preparation of1,3-propanediol via hydrogenation of 3-hydroxypropanal[P].U.S.P,US 5786524,1998....
By comparing two different process,thehydrogenation of methyl 3-hydroxypropanoate toprepare 1, 3-propanediol was thought to have better prospect inindustrialization. Keywords:1,3-propanediol;3-hydroxypropanal; methyl 3-hydroxypropionate; catalyst. 1,3-丙二醇(1,3-PDO)是一种重要的化工原料,广泛用做...
Keywords:3-hydroxypropanaI;1,3-propanedioI;hydrogenationcataIyst 此技术转让给Dupont公司。二公司目前均以此技术建成了工业化装置。该技术工艺路线为:丙烯醛水溶液在酸性催化剂存在下发生水合反应生成3- 羟基丙醛(HPA),HPA水溶液在加氢催化剂作用下完成加氢反应生成1,3-丙二醇。水合反应催化剂包括沸石分子筛[3、4...
sites generated by acid activation of the catalyst promoted selective abstraction of secondary –OH group of glycerol favoring the formation of 1,3-PDO and the highly dispersed nanosize Pt particles, confirmed from CO-chemissorption and TEM studies, enabled the hydrogenation of 3-hydroxypropanal. ...
sodium hydroxide is added to the solution to neutralize any acid therein such that the pH is at least about 5, the neutralized aqueous solution is subjected to hydrogenation to produce a crude 1,3-propanediol mixture which is distilled to produce 1,3-propanediol, water, and reactive heavy comp...
3_羟基丙醛加氢制13_丙二醇催化剂及加氢条件
Process for the production of 3-hydroxypropanal 优质文献 相似文献 参考文献 引证文献Two-stage process for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal Vanheertum R,Haas T,Hofen W,et al.Two-stage process for the production of 1,3-propanediol by catalytic hyd...