Linde Aktiengesellschaft

Linde Gmbh

David Bruder

Helmut Fritz

Mathieu Zellhuber

Heinz Zimmermann

Torben Höfel

Martin Hofstätter

Benedikt Kurz

Anne Spindelndreher

Karlheinz Brudi

Stefan Glomb

Matthias Andre

Christopher Eberstein

Richard Koller

Michael HÖRENZ

The invention relates to a process () for deriving polymerizable aromatic compounds having nine carbon atoms (S) in which a component mixture (B) is formed at least partially by steam cracking, in which the component mixture (B) is subjected to a workup () comprising a gasoline removal () and thereafter is a compression () and a fractionation (), and wherein one or more pyrolysis gasoline fractions (H, L) is or are formed in the gasoline removal () and/or the compression (). The invention provides that a separation feed is formed which comprises predominantly exclusively pyrolysis gasoline from the or at least one of the pyrolysis gasoline fractions (H, L) and that the separation feed is subjected to a separation (), wherein in the separation () at least one fraction (P) enriched in aromatic compounds having nine carbon atoms compared to the separation feed is formed. A corresponding plant likewise forms part of the subject matter of the invention.

Method and system for obtaining polymerizable aromatic compounds

A method () is proposed for the manufacture of benzene, in which a first feedstock mixture is formed, which contains alkylated aromatics and hydrogen, and in which the alkylated aromatics contained in the first feedstock mixture are partially converted with the hydrogen contained in the first feedstock mixture to the benzene through hydrodealkylation (), thereby obtaining a first product mixture, wherein the first product mixture contains the benzene, the unconverted alkylated aromatics, alkanes with one to three carbon atoms formed in the conversion of the alkylated aromatics to the benzene, and the unconverted hydrogen, and wherein at least a part of the alkanes with one to three carbon atoms and of the hydrogen are separated from the first product mixture, thereby obtaining a light-gas fraction. It is proposed that the hydrogen contained in the first feedstock mixture is provided at least in part with the use of a low-temperature separation (), to which at least a part of a second product mixture is supplied, wherein the second product mixture is formed at least in part through steam cracking () of a second feedstock mixture, and that the light-gas fraction is also supplied at least in part to the low-temperature separation (). A corresponding plant also forms the subject matter of the invention.

Method and system for producing benzene

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Munich, Germany

David Bruder