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公开(公告)号：EP1246788A2
公开(公告)日：2002-10-09
申请号：EP01907432.7
申请日：2001-01-10
IPC分类号： C07C51/31 , C07C51/265 , C07C57/145 , B01J8/02 , B01J19/24
CPC分类号： F28F13/08 , B01J8/0285 , B01J19/249 , B01J2208/022 , B01J2219/0002 , B01J2219/2453 , B01J2219/2459 , B01J2219/2462 , B01J2219/2479 , B01J2219/2481 , B01J2219/2497 , B01J2219/32466 , B01J2219/32475 , C07C51/265 , C07C51/313 , F28D9/0031 , F28F2250/104 , C07C63/16
摘要： The invention relates to a method for producing phthalic acid anhydride by means of heterogeneously catalysed gas phase oxidation, in a reactor comprising an element for guiding a reaction mixture in at one reactor end and an element for guiding the product mixture out at the opposite reactor end. The reactor also comprises devices for carrying off the reaction heat, through which heat exchanger agents flow and which are configured as heat exchanger plates, these devices being located in the inner chamber of the reactor.
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公开(公告)号：EP1230204A1
公开(公告)日：2002-08-14
申请号：EP00975980.4
申请日：2000-10-31
发明人： TENTEN, Andreas , HIBST, Hartmut , MACHHAMMER, Otto , HECHLER, Claus , MÜLLER-ENGEL, Klaus, Joachim , UNVERRICHT, Signe
摘要： The invention relates to a method for carrying out the two-stage catalytic gas phase oxidation of propene to form acrylic acid. The inventive method provides that, in a multitube fixed-bed reactor, the reaction gas starting mixture having a propene load ≥ 160 Nl propene / l.h is firstly conducted over a fixed-bed catalyst feed material (1), which is located in two successive temperature zones A, B, and afterwards, is conducted over a fixed-bed catalyst feed material (2), which is accommodated either in another temperature zone C or in two additional temperature zones D, E. The temperature of zone A is maintained at a lower temperature than that of zone B, and the temperature of zone D is maintained at a lower temperature than that of zone E.
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