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Method and system for producing aromatic hydrocarbon extraction raw material from waste plastic oil and/or waste tire oil

A technology for waste tires and waste plastic oil, applied in hydrocarbon oil treatment products, hydrocarbon oil treatment, petroleum industry, etc., can solve the problems of short processing cycle, achieve low cost, prolong operation cycle, and good effect of impurity removal

Pending Publication Date: 2022-05-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims to solve the problem of short processing period when processing waste plastic oil and / or waste tire oil raw materials in the prior art, and aims to provide a method and system for producing aromatics extraction raw materials from waste plastic oil and / or waste tire oil

Method used

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  • Method and system for producing aromatic hydrocarbon extraction raw material from waste plastic oil and/or waste tire oil
  • Method and system for producing aromatic hydrocarbon extraction raw material from waste plastic oil and/or waste tire oil
  • Method and system for producing aromatic hydrocarbon extraction raw material from waste plastic oil and/or waste tire oil

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Experimental program
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Effect test

Embodiment 1-3

[0091] Waste plastic oil and / or waste tire oil raw materials enter the impurity removal reactor, contact with waste hydrogenation catalyst in the presence of hydrogen, and carry out impurity removal reaction under the impurity removal reaction conditions. The obtained reaction effluent is obtained after separation. The first gas phase material and the first liquid phase material are further separated to obtain the first fraction (C1 ~ C5), the second fraction (C6 ~ C8) and the third fraction (C9 +).

[0092]The second fraction enters the Hydrofining Reactor, contacts with the hydrofining catalyst, and carries out the hydrofining reaction under the hydrofining reaction conditions. After separation, the reaction effluent obtains the second gas phase material and the second liquid phase material. See Table 2 for specific reaction conditions and product properties.

[0093] As shown in Table 2, the obtained second liquid phase material has low sulfur, low nitrogen and low bromine pr...

Embodiment 4-5

[0095] Waste plastic oil and / or waste tire oil raw materials enter the impurity removal reactor, contact with waste hydrogenation catalyst in the presence of hydrogen, and carry out impurity removal reaction under the impurity removal reaction conditions. The obtained reaction effluent is obtained after separation. The first gas phase material and the first liquid phase material are further separated to obtain the first fraction (C1 ~ C5), the second fraction (C6 ~ C8) and the third fraction (C9 +).

[0096] The obtained second fraction enters the Hydrofining Reactor, contacts with the hydrofining catalyst, carries out the hydrofining reaction under the hydrofining reaction conditions, and the reaction effluent is separated to obtain the second gas phase material and the second liquid phase material. See Table 3 for specific reaction conditions and product properties.

[0097] The obtained third fraction enters the catalytic cracking unit and reacts with the catalytic cracking c...

Embodiment 6

[0109] In this embodiment, the impurity removal unit is equipped with two parallel fixed bed hydrogenation reactors 1 and 2, with raw material I as the feed. The catalyst loading, impurity removal reaction conditions and reaction results are listed in Table 4.

[0110] When reactor 1 operates to 2500 h, the silicon content of liquid material in the reaction effluent is greater than 1 μ G / g, then switch to reactor 2 for impurity removal reaction, and the silicon content of liquid phase material is reduced to less than 1 μ g / g。 The catalyst is replaced for reactor 1, so the cycle realizes long-term operation.

[0111] Table 4

[0112]

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Abstract

The invention relates to a method and a system for producing an aromatic hydrocarbon extraction raw material from waste plastic oil and / or waste tire oil. The waste plastic oil and / or the waste tire oil are / is subjected to an impurity removal reaction in the impurity removal unit, the obtained reaction effluent is separated to obtain a first fraction, a second fraction and a third fraction, the second fraction enters the hydrofining unit for a reaction, and the third fraction enters the catalytic cracking unit for a reaction; the obtained catalytic cracking gasoline also enters the hydrofining unit for reaction, and a second liquid-phase material obtained after reaction products of the hydrofining unit are separated is the aromatic hydrocarbon extraction raw material. According to the invention, impurities in waste plastic oil and / or waste tire oil can be effectively removed, and qualified raw materials are provided for an aromatic hydrocarbon extraction device by combining with a catalytic cracking unit. The method is low in cost and long in operation period.

Description

technical field [0001] The invention relates to the technical field of hydrocarbon raw material treatment, in particular to a method and system for producing aromatic extraction raw materials from waste plastic oil and / or waste tire oil. Background technology [0002] With the continuous development of China's urbanization process, the urban population is increasing year by year, the people's living standards are improving, and the output of urban domestic waste is also increasing. At present, urban waste treatment methods mainly include landfill, incineration and so on. Whether incineration or landfill, there are a series of subsequent environmental protection problems. [0003] Chemical conversion method can convert plastic waste into industrial raw materials or fuel oil with utilization value. It can not only eliminate environmental pollution, but also realize the sustainable development and utilization of resources. It is an effective way to control "white pollution". At pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/00
CPCC10G65/00C10G2300/1007C10G2300/4006C10G2300/4012C10G2300/4018C10G2300/70C10G2400/30
Inventor 张登前习远兵李中亚李善清魏晓丽刘滨刘锋孔令江
Owner CHINA PETROLEUM & CHEM CORP
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