公开(公告)号：MY125244A

公开(公告)日：2006-07-31

申请号：MYPI20001007

申请日：2000-03-14

Applicant: BASF AG

Inventor： CORR FRANZ ,  OLBERT GERHARD ,  REUTER PETER ,  WAMBACH LUDWIG ,  HAMMOM ULRICH

IPC: B01J19/00 ,  B01J8/06 ,  B01J19/24 ,  C07C45/35 ,  C07C45/38 ,  H01Q21/08

Abstract: THE PRESENT INVENTION RELATES TO MULTITUBE REACTOR AND THE USE OF SUCH A REACTOR FOR CARRYING OUT CATALYTIC GAS-PHASE REACTIONS, IN PARTICULAR FOR CARRYING OUT EXOTHERMIC AND ENDOTHERMIC CATALYTIC GAS-PHASE REACTIONS SUCH AS THE PREPARATION OF PHTHALIC ANYHYDRIDE (PA), ACRYLIC ACID, METHACRYLIC ACID (MAA), ACROLEIN, MAEIC ANHYDRIDE (MA), GLYOXAL, PHOSGENE, HYDROCYANIC ACID OR VINYL FORMAMIDE (VFA). IN A RELATIVELY LARGE MULTITUBE REACTOR IN WHICH A LARGE AMOUNT OF HEAT OF REACTION IS GENERATE OWING TO THE NUMEROUS CATALYST TUBES (17) AND HAS TO BE REMOVED, IT IS PROPOSED THAT THE RATIO OF TUBE SPACING t TO EXTERNAL TUBE DIAMETER da BE MADE DEPENDENT ON THE REACTOR DIAMETER OR ON THE EXTERNAL TUBE BUNDLE DIAMETER dRBa. AT THE EXTERNAL DIAMETER OF THE CATALYST TUBE BUNDLE (18) OF MORE THAN 4 METERS, A RATIO OF TUBE SPACING d TO EXTERNAL TUBE DIAMETER da OF AT LEAST 1.3 IS PREFER-RED.(FIGURE 3)