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A microwave reactor and its application

A microwave reactor and reactor technology, which is applied in the chemical/physical/physical-chemical process of applying energy, refining to remove heteroatoms, etc., can solve the problem that microwave reactors cannot withstand high temperature and high pressure, and achieve high pressure reaction Effect

Active Publication Date: 2017-05-03
CHINA UNIV OF PETROLEUM (BEIJING) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The object of the present invention is to provide a microwave reactor, which solves the problem that the microwave reactor cannot withstand high temperature and high pressure due to the limitation of the seal by changing the seal of the microwave reactor

Method used

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  • A microwave reactor and its application
  • A microwave reactor and its application
  • A microwave reactor and its application

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Experimental program
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Effect test

Embodiment 1

[0031] The FCC gasoline raw material is subjected to hydrodesulfurization treatment with the hydrodesulfurization device of the present invention. The total sulfur content of the FCC gasoline feedstock used in the experiment was 450 ppm, and the hydrocarbons consisted of n-alkanes ( n -P), isoparaffins ( i -P), olefins (O), naphthenes (N) and aromatics (A) are: 5.41%, 37.59%, 27.15%, 7.84% and 22.01%, respectively, motor octane number (MON) It is 87.79 and has a Research Octane Number (RON) of 94.75. The catalyst uses conventional Ni-Mo / Al 2 o 3 .

[0032] Adopt the used device of the present invention to carry out FCC gasoline hydrogenation desulfurization research, be 2 MPa at pressure, the weight hourly space velocity is 2h -1 , the volume ratio of hydrogen to oil was 200:1, and the microwave power was 1.6 kW, the effect of different reaction temperatures (240-280 ℃) on the hydrodesulfurization reaction of FCC gasoline under the action of microwave was investigated, an...

Embodiment 2

[0034] Using the reactor of the present invention to study the hydrodesulfurization of catalytic cracking diesel oil, the properties of the diesel oil are: the sulfur content is 1576ppm, the nitrogen content is 650ppm, the initial boiling point of the diesel oil is 190°C, and the final boiling point is 375°C. Using the above microwave device and conventional Ni-Mo / Al 2 o 3 The reaction is carried out under the catalyst, the microwave power is 3.5kW, the reaction pressure is 6MPa, the hydrogen-oil ratio is 600:1, and the space velocity is 1h -1 , when the reaction temperature was 330°C, 350°C and 360°C, the removal rates of diesel oil reached 86%, 93% and 97%, which were 10-13% higher than those under conventional conditions; the hydrogenation denitrogenation rates reached 71%, 83% respectively. % and 89%, 15-17% higher than the denitrification rate of conventional heating under the same conditions.

[0035] Among them, in terms of safety control, an overpressure parking auto...

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Abstract

The invention provides a microwave reactor. The microwave reactor comprises a microwave cavity and a reactor body arranged in the microwave cavity, wherein a reaction section is arranged in the reactor body, the outer side of the microwave cavity corresponding to the reaction section is communicated with a waveguide, a cooling water jacket is arranged outside the waveguide, and the outer side of the microwave cavity corresponding to the lower end of the reactor body is also provided with a cooling water jacket. According to the microwave reactor provided by the invention, a hydrogen inlet is formed in the waveguide, hydrogen enters from the waveguide, moves upwards in the microwave cavity through a gap between the microwave cavity and the reactor body, and enters the reactor body from the upper part of the reactor body, and differential pressure does not exist between the interior and exterior of the reactor body. The microwave reactor provided by the invention can be used for solving the problem that the microwave reactor cannot tolerate high temperature and high pressure due to the restrictions of sealing and materials by changing the sealing of the microwave reactor and changing the differential pressure between the interior and exterior of the reactor body.

Description

technical field [0001] The invention relates to a microwave reactor and its application, in particular to the application of the microwave reactor in hydrodesulfurization of oil products. Background technique [0002] In recent years, with the increase in the number of motor vehicles, the exhaust gas produced by the combustion of gasoline and diesel has become one of the important sources of urban pollution. In order to reduce the emission of harmful substances in the tail gas, countries all over the world have proposed increasingly strict restrictions on the sulfur content in gasoline. my country requires that the National IV gasoline standard be implemented nationwide on January 1, 2014, and the sulfur content be reduced from 150ppm in the National III standard to 50ppm. The National V standard will be implemented nationwide on January 1, 2018. It is required to be controlled below 10ppm. In 2008 and 2009, Japan and the European Union required that the sulfur content in g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/12C10G45/02
Inventor 商辉赵金岷张文慧
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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