A methane oxidative coupling reaction device and its process for producing ethylene

Abstract

The invention belongs to the technical field of methane oxidative coupling to ethylene reaction, and specifically relates to a methane oxidative coupling to ethylene reaction device and its process; it includes a reaction barrel; a barrel cover is rotatably connected to the top of the reaction barrel; the barrel cover A feeding pipe is fixedly connected to the inner wall at the center line of the barrel cover, and the feeding pipe is a tapered design; a feeding cover is sleeved above the feeding pipe; inclined plates, and the inclined plates are arranged in a staggered manner; a reaction layer is fixedly connected to the inner wall of the reaction barrel below the feed pipe; the present invention is mainly used to solve the obvious hot spots in the process of preparing ethylene in the current methane oxidation coupling reaction device , when the catalyst filling amount increases, the catalyst layer will become thicker, thereby generating a large amount of heat of reaction. Since the generated heat of reaction cannot be removed in time, the reaction speed of the catalyst will be accelerated and more heat will be released, which will lead to the phenomenon of sintering of the catalyst. , but also cause damage to the reaction device.

Description

technical field [0001] The invention belongs to the technical field of ethylene production by oxidative coupling of methane, in particular to a reaction device for producing ethylene by oxidative coupling of methane and a process thereof. Background technique [0002] Ethylene is an important product of petrochemical and organic chemicals. With the development of the world economy, the demand for ethylene is increasing year by year. In the future, the world's ethylene production capacity will continue to grow rapidly, and the raw materials will be lighter and more diversified. Natural gas resources are not only rich in sources, but also clean and environmentally friendly. Methane is the main component of natural gas, shale gas, coalbed methane, and combustible ice. In the long run, methane-to-ethylene technology has good development prospects. Compared with the indirect conversion method of natural gas, the oxidative coupling of methane (OCM) to ethylene can convert metha...

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Problems solved by technology

[0006] In order to make up for the deficiencies in the prior art, the present invention proposes a methane oxidative coupling ethylene reaction device and its process. The present invention is mainly used to solve the obvious hot spots in the process of preparing ethylene in the current methane oxidative coupling ethylene reaction device. When the catalyst filling amount increases, the catalyst layer will become thicker, resulting in a large amount of heat of reaction. Since the generated heat of reaction cannot be removed in time, the reaction speed of the catalyst will be accelerated and more heat will be released, which will lead to the sintering of the catalyst. At the same time, it will also cause damage to the reaction device.

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