PROCESS FOR PREPARATION OF NITROGEN OXIDES AND NITRIC ACID FROM NITROUS OXIDE

There is disclosed a process for preparing adipic acid comprising the step of reacting at least one of cyclohexanone and cyclohexanol with nitric acid to produce adipic acid and an offgas comprising at least 10 mol% nitrous oxide (N20). The process further comprises the steps of converting the N20 p...

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Bibliographic Details
Main Authors ELMORE, DARRICK K, BUSH, GREGORY E, KHRAMOV, MIKHAIL
Format Patent
LanguageEnglish
French
Published 21.12.2021
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC CHEMISTRY
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Summary:There is disclosed a process for preparing adipic acid comprising the step of reacting at least one of cyclohexanone and cyclohexanol with nitric acid to produce adipic acid and an offgas comprising at least 10 mol% nitrous oxide (N20). The process further comprises the steps of converting the N20 present in the offgas to nitrogen oxide (N0x) (x = 1 or 2) in a yield of greater than 15% by passing the offgas through a reactor operating at a temperature of 2400 F or greater and converting the NOx to nitric acid. A high conversion is achieved. L'invention concerne une conversion améliorée de l'oxyde nitreux (N2O) présent sous forme d'un sous-produit dans un procédé chimique en NOx qui peut être en outre converti en un composé ou un matériau utile, tel que l'acide nitrique.
Bibliography:Application Number: CA20183084247