Verfahren und Vorrichtung zum Dampfkracken

Details

Veröffentlichungs-Nr.

EP4715029

Anmeldetag

18. September 2024

Veröffentlichung

25. März 2026

Rechtsraum

EP

IPC

C10G9/20, C10G9/36, F23C9/00(O'DONNELL JOHN SETEL et al.)

Abstract

A method for steam cracking is proposed, the method comprising operating a steam cracking furnace (100) with a radiant section (110) and a convection section (120), the radiant section (110) comprising a plurality of reaction tubes (111) and a plurality of burners (112) and the convection section (120) comprising a plurality of heat recovery units (121, 122). The proposed method includes operating the steam cracking furnace (100) using a group of gases to provide heat to the reaction tubes (111) and/or the heat recovery units (121, 122), the group of gases consisting of one or more combustible gases and a subgroup of further gases, the subgroup of further gases consisting of oxygen and one or more incombustible gases. In the proposed method, the oxygen is provided in the subgroup of further gases in a proportion lower than a proportion of oxygen in atmospheric air. The subgroup of further gases, or one or more gas components used in forming the subgroup of further gases, is subjected to a preheating step to a temperature above 500 °C upstream of the burners (111), and the preheating step is performed using electric energy in an energy amount which is at least 20% of an energy amount provided by the lower heating value of the one or more combustible gases (111). A corresponding apparatus (1000) is also proposed herein.

Anmelder

Firma

Linde GmbH

Land

🇩🇪 Deutschland