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Method for dehydrogenating alkane

一种使烷烃、脱氢的技术，应用在使烷烃脱氢领域，能够解决转化率低、催化剂停留时间短等问题，达到降低氢分压、改进供热量、提高丙烯产量的效果

Active Publication Date: 2019-08-27
HYOSUNG CHEM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such conventional fluidized bed dehydrogenation reactors are limited by the short catalyst residence time and low conversion

Method used

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  • Method for dehydrogenating alkane
  • Method for dehydrogenating alkane

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Embodiment Construction

[0014] The present invention will be described in more detail below with reference to the accompanying drawings.

[0015] Although commonly-used terms widely used at present are selected as terms used in the present invention, terms randomly selected by the applicant are used in specific cases. In this case, the meaning of the term should be understood by considering the meaning described or used in the detailed description of the present invention, rather than simply considering the name of the term. Throughout the specification, the same reference symbols denote the same components.

[0016] Although the drawings depict a specific shape for the dehydrogenation reactor of the present invention, the dehydrogenation reactor may have various shapes suitable for the particular circumstances in which it is performed in a particular application. The broad applicability of the invention is not limited to the specific embodiments which will be described below. In addition, the numb...

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Abstract

The present invention relates to a method for dehydrogenating alkane, the method comprising: a step for dehydrogenating propane by supplying hydrogen, steam, and a supply gas stream including a hydrocarbon to be dehydrogenated to a dehydrogenation reactor, the dehydrogenation step being repeated for 5 sets or more, the dehydrogenation reactor being provided with a two-stage reaction raw material heater connected in parallel that heats the supply gas stream supplied to each reactor, and the steam being supplied divided among the reactors respectively that are used for the 5 sets or more of reaction steps; and a step for cooling and compressing a product gas stream of the previous step, passing the product gas stream through a cooling box to rapidly cool the product gas stream, and recovering a product by separating and purifying the product gas stream that has passed through the cooling box.

Description

technical field [0001] This invention relates to a process for the dehydrogenation of alkanes, and more particularly to a process for the dehydrogenation of propane to produce propylene. Background technique [0002] In the petrochemical industry, continuous catalytic conversions are carried out. The Moving Catalyst Dehydrogenation Process of hydrocarbons is an important process in the production of light hydrocarbon components, and is an important process in the production of ethylene and propylene. In the mobile catalyst dehydrogenation process, the catalyst is continuously circulated between the reactor and the regenerator. [0003] Propane dehydrogenation via catalytic dehydrogenation reactions provides access to propylene production. Dehydrogenation catalysts typically include noble metal catalysts on acidic supports such as alumina, silica alumina or zeolite supports. However, the dehydrogenation reaction is strongly endothermic and requires high temperatures for th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C5/333C07C11/02C07C7/00C07C7/20B01J8/00B01J38/04B01D53/04C01B3/50
CPCB01D53/04B01J8/00B01J38/04C01B3/50C07C5/3337C07C11/06B01D53/0407B01J8/008C01B3/506C07C5/333C07C7/005C07C7/20C07C11/02B01J2204/007B01D2253/1124B01D2257/502B01J19/0013B01J19/245B01J2219/00103B01J2219/00117C01B3/56C01B2203/042C01B2203/047C07C7/12
Inventor 赵富英金洹一
Owner HYOSUNG CHEM CORP
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