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Method and system for producing one or more olefins

A technology for alkenes, alkynes, used in the field of production or multiple alkenes and systems

Pending Publication Date: 2021-10-29
ลินเดอ จีเอ็มบีเอช (นิติบุคคลจัดตั้งขึ้นตามกฎหมายแห่งสหพันธ์สาธารณรัฐเยอรมนี)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In addition, the high conversion of ODH leads to a large amount of carbon monoxide and carbon dioxide and a small amount of alkynes as by-products

Method used

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  • Method and system for producing one or more olefins
  • Method and system for producing one or more olefins

Examples

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Embodiment Construction

[0060] figure 1 A method, generally designated 100 , according to a particularly preferred embodiment of the invention is illustrated. The explanations about the method 100 are also applicable to the corresponding device, wherein figure 1 The process steps shown are carried out by corresponding plant components.

[0061] In process 100, a reaction feed comprising oxygen and one or more paraffins is formed and undergoes oxidative dehydrogenation 1 in material stream a. The process gas formed in the oxidative dehydrogenation is at least partially fed to the condensation separation 2 in which, for example, water and acetic acid are separated condensately. The corresponding process gas or part thereof is fed to the condensation separation in the form of process gas stream b.

[0062] The process gas removed from the condensation separation and depleted of water and possibly other components is fed in the form of process gas stream c to the process gas compressor or feed gas com...

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Abstract

The invention relates to a method (100) for producing one or more olefins, in which a reaction mixture is formed, containing oxygen and one or more paraffins, and in which a portion of the oxygen in the reaction mixture is reacted with a portion of the paraffin / s, producing a process gas, via an oxidative method to form the olefin / s, wherein the process gas contains at least the unreacted portion of the paraffin / s and the oxygen, the olefin / s, one or more acetylenes, carbon dioxide and water. The method involves the process gas or a gas mixture, formed using at least one portion of the process gas, partially or entirely undergoing the following processes in the given order: condensate separation (2); compression (3); at least partial removal (4) of the oxygen and the acetylene / s; and one or more stages of a carbon dioxide removal (5); wherein the at least partial removal (4) of the oxygen and the acetylene / s occurs simultaneously and via a catalytic reaction using a catalyst containing copper oxide or ruthenium, and wherein the catalytic reaction occurs at least partially in the form of a hydrogenation. The invention also relates to a corresponding system.

Description

technical field [0001] The invention relates to a process for the production of one or more olefins and a corresponding plant according to the preambles of the independent claims. Background technique [0002] The oxidative dehydrogenation (ODH) of paraffins having 2 to 4 carbon atoms is basically known. In ODH, the above-mentioned alkanes react with oxygen, especially to form alkenes of the same carbon number and water. [0003] ODH may have advantages over more established olefin production processes such as steam cracking or catalytic dehydrogenation. Due to the exothermic nature of the reactions involved, there is no restriction on thermodynamic equilibrium. ODH can be performed at relatively low reaction temperatures. In principle, the catalyst used does not require regeneration, since the presence of oxygen allows regeneration in situ. Finally, less valuable by-products such as coke are formed compared to steam cracking. [0004] For further details about ODH, ple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C5/48C07C2/82C07C7/09C07C7/148C07C7/163C07C7/167C07C11/04
CPCC07C2/82C07C5/48C07C7/005C07C7/09C07C7/148C07C7/14858C07C7/163C07C7/167C07C2521/04C07C2523/72C07C2523/889Y02P20/52C07C11/02C07C11/04B01J23/72B01J23/74C07C2/84C07C2523/74
Inventor 赫尔穆特·弗里茨安德烈·迈斯温克尔马丁·舒伯特马蒂厄·泽尔胡贝尔尼科尔·桑德尔索尼娅·舒尔特阿尼娜·韦尔
Owner ลินเดอ จีเอ็มบีเอช (นิติบุคคลจัดตั้งขึ้นตามกฎหมายแห่งสหพันธ์สาธารณรัฐเยอรมนี)
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