Doppeldrucksystem zur Herstellung von Salpetersäure und Verfahren zum Betrieb davon

Details

Veröffentlichungs-Nr.

EP4238932

Aktenzeichen

EP22160016

Anmeldetag

3. März 2022

Veröffentlichung

6. September 2023

Rechtsraum

EP

IPC

C01B21/26B01D53/56C01B21/28C01B21/38

Abstract

The present disclosure discloses a production plant for producing nitric acid at reduced power, the system being derived from a state-of-the art dual pressure nitric acid plant characterised in that the system further comprises a first means for splitting (55) a stream of tail gas into a first tail gas stream (10) in fluid communication with compressed air (34) and with an oxygen-rich gas (50) and a second tail gas stream (80), and/or means for splitting (82) a stream of tail gas into a third tail gas stream (83, 84) in fluid communication with compressed air (34) and with an oxygen-rich gas (50) and a fourth tail gas stream (80). The present production plant allows for reduction of power by the air compressor (36). The present disclosure further relates to a method for operating the system, to the use of the system of the disclosure for performing the method of the disclosure and to a method for revamping a state-of-the-art dual pressure nitric acid plant into the system of the disclosure.

Anmelder

Firma

Yara International ASA

Land

🇳🇴 Norwegen

Fachgebiete