Method and plant for producing olefin

一种烯烃、设备的技术，应用在化学仪器和方法、碳氢化合物、碳氢化合物等方向，达到增加使用时间、减少变化、避免控制成本和复杂性的效果

Active Publication Date: 2019-09-10
LINDE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, a major challenge in these methods is to control the exothermic reaction

Method used

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  • Method and plant for producing olefin
  • Method and plant for producing olefin

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Experimental program
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Embodiment Construction

[0058] In the following figures, functionally or structurally equivalent elements are denoted by the same reference numerals, and for the sake of simplicity, the description is not repeated. When device parts are described below, statements regarding these also apply correspondingly to method steps carried out by these device parts, and vice versa.

[0059] exist figure 1 In , an apparatus for the production of olefins according to one embodiment of the present invention is shown in the form of a greatly simplified apparatus diagram and is generally referred to as 100 . Although the apparatus 100 is described below for ODH of ethane (ODH-E), as stated, the present invention is also applicable to ODH of higher hydrocarbons. In this case, the following instructions apply accordingly.

[0060] In the plant 100, the separated input in the form of stream a is supplied to a rectification unit 101 having, for example, one or more rectification columns and rectified. In the descri...

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PUM

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Abstract

The invention relates to a method for producing an olefin. In the method, a reaction feedstock stream is formed that contains at least one paraffin, oxygen and water, and a part of the paraffin and ofthe oxygen is converted into the olefin in the reaction feedstock stream, wherein a process gas is obtained through oxidative dehydrogenation using a catalyst, the process gas contains at least the non-converted part of the paraffin and of the oxygen, the olefin and the water from the reaction feedstock stream. According to the invention, at least one characteristic value is determined that displays an activity of the catalyst, and an amount of water in the reaction feedstock stream is set based on the at least one determined characteristic value. The invention also relates to a correspondingplant (100).

Description

technical field [0001] The invention relates to a process for the production of 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 known in principle. In ODH, the paraffins are reacted with oxygen, inter alia to give the respective olefins and water. [0003] ODH may be advantageous compared to established methods for producing olefins, such as steam cracking or catalytic dehydrogenation. For example, due to the exothermic nature of the reactions involved, there are no thermodynamic equilibrium constraints. ODH can be performed at relatively low reaction temperatures. Since the presence of oxygen allows regeneration in situ, regeneration of the catalysts used is in principle not necessary. Finally, less valuable by-products such as coke are formed compared to steam cracking. [0004] For further details on ODH refer to relevan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C5/48C07C11/04
CPCC07C5/48C07C11/04C07C2523/22C07C2523/28C07C2523/648C07C2523/656C07C2527/057Y02P20/52
Inventor M·泽尔胡伯F·温克勒M·舒伯特A·迈斯温克尔
Owner LINDE AG
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