Patent · US Expired

Method of retrofitting a heterogeneous exothermic synthesis reactor

US5882606A · kind A · utility

1Cited by
6References
6Claims
0Family size

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Key dates

Filing dateOct 30, 1996
Grant dateMar 16, 1999
Priority date
Expiry dateOct 30, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/52
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

In a method of modernizing a heterogeneous exothermic synthesis reactor (1) of the type comprising an external shell (2), in which at least one catalytic bed (15, 16, 17) is supported, the catalytic bed (15, 16, 17) is connected to an external boiler (21), for generating high pressure steam, by means of a reacted gas outlet nozzle (4) and a conduit (29) extending in said nozzle (4) thereby forming an annular airspace (30). Advantageously, the airspace (30) defines an outlet flowpath of the gases cooled in the boiler (21) which avoids overheating of the nozzle (4).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.