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A method for solid-phase photocatalytic oxidation of polycyclic aromatic hydrocarbons

A technology for photocatalytic oxidation and polycyclic aromatic hydrocarbons, applied in catalytic cracking, oxidized quinone preparation, cracking, etc., can solve the problems of energy waste, failure, and difficulty in removing carbides

Active Publication Date: 2021-08-03
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country's crude oil contains many polycyclic aromatic hydrocarbons, which need to be cracked to turn into gasoline, diesel oil and fine chemicals. This process requires high temperature and high energy consumption. Moreover, polycyclic aromatic hydrocarbons are easy to carbonize during cracking, clogging the reactor, Heat exchangers and pipes, and it is difficult to remove carbides, resulting in long-term, high-efficiency, and full-load operation, resulting in major economic losses
[0003] Domestic photocatalytic treatment of polycyclic aromatic hydrocarbons is a liquid phase reaction, and the polycyclic aromatic hydrocarbons are degraded into carbon dioxide, which will inevitably lead to waste of energy

Method used

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  • A method for solid-phase photocatalytic oxidation of polycyclic aromatic hydrocarbons
  • A method for solid-phase photocatalytic oxidation of polycyclic aromatic hydrocarbons
  • A method for solid-phase photocatalytic oxidation of polycyclic aromatic hydrocarbons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] The catalytic oxidation of embodiment 1 phenanthrene

[0094] Weigh 0.02g of phenanthrene and 0.6g of sodium bismuthate, add them to the petri dish, then add 14mL of n-hexane to the petri dish, mix the three evenly, then allow the n-hexane to volatilize naturally to obtain a solid phase mixture;

[0095] The solid-phase mixture was irradiated under an ultraviolet lamp with a wavelength of 365 nm, and heated to 80° C. for 8 hours.

Embodiment 2

[0096] The catalytic oxidation of embodiment 2 pyrene

[0097] Weigh 0.02g of pyrene and 0.8g of sodium bismuthate, add them to the petri dish, then add 20mL of ethanol to the petri dish, mix the three evenly, then allow the ethanol to evaporate naturally to obtain a solid phase mixture;

[0098] The solid-phase mixture was placed under a UV lamp with a wavelength of 365 nm, and heated to 80° C. for 8 hours.

Embodiment 3

[0099] The catalytic oxidation of embodiment 3 anthracene

[0100] Weigh 0.02g of anthracene and 1g of sodium bismuthate, add them to a petri dish, then add 20mL of dichloromethane to the petri dish, mix the three evenly, then allow the dichloromethane to volatilize naturally to obtain a solid phase mixture;

[0101] The solid-phase mixture was placed under a UV lamp with a wavelength of 365 nm, and heated to 60° C. for 8 hours.

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Abstract

The invention discloses a method for solid-phase photocatalytic oxidation of polycyclic aromatic hydrocarbons. The method comprises the following steps: step 1, mixing polycyclic aromatic hydrocarbons with a catalyst to obtain a solid phase mixture, step 2, mixing polycyclic aromatic hydrocarbons with a catalyst The solid-phase mixture reacts under the action of ultraviolet light; wherein, in step 1: the weight ratio of polycyclic aromatic hydrocarbons to the catalyst is 1: (30-70), preferably 1: (40-60), more preferably 1 : 50; the catalyzer is sodium bismuthate; in step 2: carry out under the ultraviolet light effect of 220~395nm in wavelength; Under the ultraviolet light effect, react 2~10 hours, preferably react 4~10 hours, more preferably react 8 to 9 hours. The method of the invention belongs to solid phase reaction, does not involve fluid, has simple steps and saves energy consumption.

Description

technical field [0001] The invention relates to the field of catalytic oxidation, in particular to the catalytic oxidation of polycyclic aromatic hydrocarbons, in particular to a method for solid-phase photocatalytic oxidation of polycyclic aromatic hydrocarbons. Background technique [0002] my country's crude oil contains many polycyclic aromatic hydrocarbons, which need to be cracked to turn into gasoline, diesel oil and fine chemicals. This process requires high temperature and high energy consumption. Moreover, polycyclic aromatic hydrocarbons are easy to carbonize during cracking, clogging the reactor, Heat exchangers and pipes, and it is difficult to remove carbides, resulting in the failure of long-term, high-efficiency, and full-load operation, resulting in major economic losses. [0003] The domestic photocatalytic treatment of polycyclic aromatic hydrocarbons is a liquid phase reaction, and the polycyclic aromatic hydrocarbons are degraded into carbon dioxide, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C46/04C07C50/18C07C50/16C07C50/22C10G11/02
CPCC07C46/04C10G11/02C10G2300/1096C07C50/18C07C50/16C07C50/22
Inventor 郝向阳张天王程张翠鹏吕潇牛秀秀郝思濛农佳节刘童谣尹康
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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