Method for solid-phase catalytic oxidation of polyaromatic hydrocarbon

Abstract

The invention discloses a method for solid-phase catalytic oxidation of polyaromatic hydrocarbon. The method comprises the following steps: step 1, mixing polyaromatic hydrocarbon with a catalyst to obtain a solid-phase mixture; step 2, enabling the polyaromatic hydrocarbon and catalyst solid-phase mixture to react under the action of microwaves, wherein in step 1, a weight ratio of the polyaromatic hydrocarbon to the catalyst is 1:(30 to 70), preferably 1:(40 to 60), and more preferably 1: 50; the catalyst is sodium bismuthate; in step 2, the reaction is performed under the action of microwaves at the power of 650 to 750 W, preferably the reaction is performed under the action of microwaves at the power of 680 to 720 W, and more preferably the reaction is performed under the action of microwaves at the power of 700 W; the reaction is performed under the action of microwaves for 8 to 12 minutes, preferably for 9 to 11 minutes, and more preferably for 10 minutes. The method disclosed bythe invention belongs to solid-phase reaction, and no fluid participates in the reaction; the steps are simple, and the energy consumption is reduced.

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 catalytic 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 pipelines, in this way, will cause the entire reaction to be stopped, and it is difficult to remove carbides. In severe cases, the reactor will be scrapped. Therefore, it will not be able to operate with long cycle, high efficiency, and full load, causing major economic losses. . [0003] Domestic microwave treatment of polycyclic aromatic hydrocarbons is a...

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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 pipelines, in this way, will cause the entire reaction to be stopped, and it is difficult to remove carbides. In severe cases, the reactor will be scrapped. Therefore, it will not be able to operate with long cycle, high efficiency, and full load, causing major economic losses.

[0003] Domestic microwave treatment of polycyclic aromatic hydrocarbons is a liquid phase reaction, and it degrades polycyclic aromatic hydrocarbons into carbon dioxide, which will inevitably lead to waste of energy

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