Title: Method for in-situ modernization of heterogeneous exothermic synthesis reactor
Application Number: 98123392 Application Date: 1998.11.27
Publication Number: 1223169 Publication Date: 1999.07.21
Approval Pub. Date: 2004.09.15 Granted Pub. Date: 2004.09.15
International Classifi-cation: B01J8/04
Applicant(s) Name: Ammonia Casale S. A. Address:
Inventor(s) Name: Giorgio Pagani;Ermanno Filippi
Attorney & Agent: wu yihua
Abstract:
    A Method for in-situ modernization of a heterogeneous exothermic synthesis reactor, comprising the steps of providing at least a first and at least a second catalytic bed (12, 13) in an upper (2a) respectively lower (2b) portion of the reactor, providing additionally a lowermost catalytic bed (14) in the lower portion (2b) of the reactor having a reaction volume smaller than the reaction volume of the second catalytic bed (13), and loading the lowermost catalytic bed (14) with a catalyst having an activity higher that the activity of the catalyst loaded in the other beds (12, 13). Thanks to the above steps, the present method allows to obtain a reactor with high conversion yield.
Time: 38