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Hydrogenation method of ethylcarbazole and dehydrogenation method of product thereof

A technology of ethylcarbazole and hydrogenation products, applied in the field of hydrogenation method and dehydrogenation of products thereof, achieves the effects of improving reaction rate, reducing energy consumption and omitting separation process

Inactive Publication Date: 2015-04-29
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, it is necessary to solve the economic problems of the overall process of this hydrogen storage technology, for example, how to reduce the amount of precious metals in the catalyst, how to improve the energy conversion efficiency of on-board dehydrogenation, etc.

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  • Hydrogenation method of ethylcarbazole and dehydrogenation method of product thereof
  • Hydrogenation method of ethylcarbazole and dehydrogenation method of product thereof
  • Hydrogenation method of ethylcarbazole and dehydrogenation method of product thereof

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Embodiment Construction

[0047] The following is a detailed implementation and a specific operation process in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.

[0048] The steps of hydrogenation and dehydrogenation of ethyl carbazole:

[0049] (1) Hydrogenation process: first add ethyl carbazole, the selected metal catalyst and ionic liquid to the stainless steel autoclave 9, and open the valve 20 to seal and vacuum the stainless steel autoclave 9 (to reduce the temperature in the autoclave) , and then supercritical CO 2 Fluid, then feed hydrogen, adjust the temperature, pressure and open the stirring device to start the reaction. During the reaction process, the valve 7 is opened to continuously feed hydrogen, and 19 and 20 are closed. Since the hydrogenation hydrogen storehouse 4 continues to supply hydrogen to t...

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Abstract

The invention discloses an hydrogenation method of ethylcarbazole and a dehydrogenation method of a product thereof. The hydrogenation method comprises the following steps: adding Ag of ethylcarbazole, Bg of metal catalyst and Cg of ionic liquid into a reaction kettle, adding a supercritical CO2 fluid into the reaction kettle, connecting a hydrogenation hydrogen library to the reaction kettle, introducing hydrogen, and starting a stirring device to start the reaction while regulating the temperature of the reaction kettle to 150-180 DEG C under the pressure of 8-10 MPa, wherein A:B:C=(1-8):(0.1-1):(0.1-2), and the metal catalyst is Ru-Co / Al2O3 and Ru-Ni / Al2O3. The invention adopts the bimetallic catalyst, thereby lowering the operating cost to some extent; and the supercritical fluid, ionic liquid and other green solvents are used as carriers to greatly enhance the hydrogenation and dehydrogenation efficiency without causing environmental pollution.

Description

technical field [0001] The invention relates to the field of energy and chemical industry, in particular to a hydrogenation method of ethyl carbazole and a dehydrogenation method of its product. Background technique [0002] Among many new energy sources, hydrogen energy is considered to be an ideal energy source due to its advantages such as abundant resources, no pollution, renewable energy, and high energy density. A complete hydrogen energy system includes hydrogen source development, hydrogen production, hydrogen storage, hydrogen transportation and hydrogen utilization, etc. Among them, hydrogen storage is the key to effective energy utilization, but people have not found an ideal material to solve this problem. However, the storage problem of hydrogen is still an important factor preventing its large-scale use. [0003] Organic liquid hydride hydrogen storage is based on a pair of reversible reactions between unsaturated liquid and hydrogen to achieve hydrogenation a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D209/86
CPCY02P20/54
Inventor 方涛姜召徐杰李璐潘琦
Owner XI AN JIAOTONG UNIV
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