Apparatus for catalytic conversion of methane by utilizing visible light

A catalytic conversion and visible light technology, applied in the field of chemical engineering, can solve limitations and other problems, and achieve the effects of light specific gravity, large effective light area, improved mass transfer efficiency and degradation rate

Inactive Publication Date: 2013-11-27
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method is limited to the degradation of methane under the condition of ultraviolet light

Method used

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  • Apparatus for catalytic conversion of methane by utilizing visible light
  • Apparatus for catalytic conversion of methane by utilizing visible light

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Embodiment 1

[0028] Such as figure 1 and figure 2 As shown in the present invention, a device for catalytic conversion of methane using visible light includes a cylinder 11, a support 12 is arranged inside the cylinder 11, and a titanium mesh 9 is arranged on the support 12, and the A catalyst is arranged on the titanium mesh 9, and the catalyst is BiVO 4 Powder, the lower part of the support 12 is provided with a fan 5, the upper end of the cylinder 11 is provided with a light-transmittable cover 1, and a light source 10 is provided on the vertical direction of the cover 1. The outer circumference of the cylinder 11 is provided with a water sleeve 4, the water sleeve 4 is airtightly connected with the cylinder 11, and the upper part of the side wall of one side of the water sleeve 4 is provided There is a water inlet 3, the lower part of the side wall on the other side of the water casing 4 is provided with a water outlet 7, and the bottom of the cylinder 11 is provided with at least o...

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Abstract

An apparatus for catalytic conversion of methane by utilizing visible light comprises a barrel; a rack is arranged in the barrel; the rack is provided with a titanium net; the titanium net is provided with a catalyst; a fan is arranged at the lower part of the rack; the upper end of the barrel is provided with a light-permeable lid; a light source arranged at a direction perpendicular to the lid; a flushing casing pipe is arranged on the periphery of the barrel; one sidewall of the flushing casing pipe is provided with a water inlet, and the lower part of the other sidewall of the flushing casing pipe is provided with a gas outlet; the bottom of the barrel is provided with at least one air intake; and one upper sidewall of the barrel is provided with a gas outlet. According to the invention, the catalyst is loaded on the titanium net, so that the apparatus has advantages of low light mass transfer loss and large effective illumination area. Gas distribution fan arranged on the bottom of the barrel guarantees uniform gas distribution of mixed gas in a reactor and increases mass transfer efficiency and degradation rate.

Description

technical field [0001] The invention belongs to the field of chemical engineering, and in particular relates to a device for photocatalytically converting methane, in particular to a device for catalytically converting methane using visible light. [0002] Background technique [0003] Methane is a potent greenhouse gas with high global warming potential (GWP). 3 —The dissociation energy of the H bond is 435 kJ / mol, and the C atom forms four equivalent C-H bonds with four H atoms, forming a very symmetrical regular tetrahedral structure, and does not have functional groups and magnetism that are conducive to the attack of other substances. Polarity, chemical properties are very stable, difficult to transform. Therefore, it is urgent to find a method that can quickly convert methane under normal temperature and pressure, and photocatalytic oxidation is considered to be one of the methods to break this thermodynamic barrier. With conventional TiO 2 As a photocatalyst, u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/72
Inventor 王罗春武文燕陈飞李亭林志静
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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