PLANT AND METHOD FOR PRODUCING ETHYLENE

The invention relates to a plant for producing ethylene with: a reactor (2) which is designed and provided for oxidative coupling of methane; a processing unit (3) connected to the reactor (2), which unit is designed for separating a first material stream (S) produced during the oxidative coupling o...

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Bibliographic Details
Main Authors Christian THALLER, Volker GÖKE, Holger SCHMIGALLE, (FALLECIDO)
Format Patent
LanguageEnglish
Spanish
Published 27.03.2018
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Summary:The invention relates to a plant for producing ethylene with: a reactor (2) which is designed and provided for oxidative coupling of methane; a processing unit (3) connected to the reactor (2), which unit is designed for separating a first material stream (S) produced during the oxidative coupling of methane into at least one C1 material stream and an ethylene product stream (P); and a separating unit (4) which is connected to the processing unit (3) and is designed to separate the material stream at least into a hydrogen-rich product stream (W) and an low-hydrogen residual gas stream (S'). According to the invention a steam cracking device (5) connected to the processing unit (3) is provided for producing an olefin- and hydrogen-containing crude gas stream (R), wherein the processing unit (3) is designed to separate the crude gas (R) together with the first material stream (S) into at least the C1 material stream and the ethylene product stream (P), wherein the plant (1) is designed to feed at least one part of the residual gas stream (S') back into the reactor (2) as feedstock. Furthermore, the invention relates to a corresponding method for producing ethylene. La invención se refiere a una planta para producir etileno y comprende: un reactor (2) configurado y previsto para efectuar acoplamiento oxidativo de metano, una unidad de trabajo (3) conectada al reactor (2) y configurada para separar una primera corriente de material (S) producida durante el acoplamiento oxidativo de metano dentro de por lo menos una corriente de material de C1- y una corriente de producto de etileno (P) y una unidad de separación (4) conectada a la unidad de trabajo (3) y configurada para separar la corriente de material de C1- por lo menos en una corriente de producto rica en hidrógeno (H) y una corriente de gas residual con poco hidrógeno (S´). La invención proporciona un craqueador de vapor (5) para producir una corriente de gas crudo que contiene olefina e hidrógeno (C) y conectada a la unidad de trabajo (3), en donde la unidad de trabajo (3) está configurada para separar la corriente de gas crudo (C) junto con la primera corriente de material (S) dentro de por lo menos la corriente de material de C1- y la corriente de producto de etileno (P), en donde la planta (1) está configurada para reciclar por lo menos una porción de la corriente de gas residual (S´) en el reactor (2) como entrada. La invención se refiere además a un proceso correspondiente para producir etileno.
Bibliography:Application Number: MX20150003068