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Method and system for producing clean diesel oil from waste plastic oil and/or waste tire oil

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

Pending Publication Date: 2022-07-29
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 clean diesel oil from waste plastic oil and / or waste tire oil

Method used

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  • Method and system for producing clean diesel oil from waste plastic oil and/or waste tire oil
  • Method and system for producing clean diesel oil from waste plastic oil and/or waste tire oil
  • Method and system for producing clean diesel oil from waste plastic oil and/or waste tire oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0079] The raw material of waste plastic oil enters the decontamination reactor and contacts with the waste and old hydrogenation catalyst in the presence of hydrogen, and carries out decontamination reaction under decontamination reaction conditions, and the obtained reaction effluent enters the hydrotreating reactor and contacts with the hydrotreating catalyst, The hydrotreating reaction is carried out under the hydrotreating reaction conditions, the reaction effluent of the hydrotreating reactor enters the hydrocracking reactor and is contacted with the hydrocracking catalyst, the hydrocracking reaction is carried out under the hydrocracking reaction conditions, and the hydrocracking reaction is carried out. After the reaction effluent of the cracking reactor is subjected to gas-liquid separation by the high-pressure separator, a gas-phase stream and a liquid-phase stream are obtained, and the obtained liquid-phase stream enters a fractionation tower for fractionation to obta...

Embodiment 4-5

[0082] The raw materials of waste plastic oil and waste tire oil enter the de-purification reactor and contact the waste hydrogenation catalyst in the presence of hydrogen, and carry out de-impurification reaction under de-purification reaction conditions. The hydrotreating catalyst is contacted, and the hydrotreating reaction is carried out under the hydrotreating reaction conditions, and the reaction effluent of the hydrotreating reactor enters the hydrocracking reactor and contacts with the hydrocracking catalyst, and the hydrotreating reaction is carried out under the hydrocracking reaction conditions. In the cracking reaction, the reaction effluent of the hydrocracking reactor is subjected to gas-liquid separation by a high-pressure separator to obtain a gas-phase stream and a liquid-phase stream, and the obtained liquid-phase stream enters a fractionation tower for fractionation to obtain gasoline fractions, diesel fractions and tail oil fractions , all the tail oil fract...

Embodiment 6

[0099] In the present embodiment, two parallel fixed-bed hydrogenation reactors 1 and 2 are arranged in the impurity removal unit, and the raw material I is used as the feed. The catalyst loading situation, the impurity removal reaction conditions and the reaction results are listed in Table 6.

[0100] When the reactor 1 runs for 250 hours, the silicon content of the liquid phase material in the reaction effluent is greater than 1 μg / g. At this time, the reactor 2 is switched to carry out the decontamination reaction, and the silicon content of the liquid phase material is reduced to less than 1 μg / g. The catalyst is replaced in the reactor 1, and this cycle realizes long-term operation.

[0101] Table 6

[0102]

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PUM

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Abstract

The invention relates to a method and a system for producing clean diesel oil 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 enters the hydrogenation unit to be subjected to hydrofining and hydrocracking reactions, and the reaction products are separated to obtain a gasoline fraction, a diesel fraction and a tail oil fraction. Impurities in the waste plastic oil and / or the waste tire oil can be effectively removed, and a clean diesel oil product can be obtained to the maximum extent in combination with a hydrogenation 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 processing, in particular to a method and system for producing clean diesel oil from waste plastic oil and / or waste tire oil. Background technique [0002] With the continuous development of my country's urbanization process, the urban population is increasing year by year, the people's living standards are constantly improving, and the output of urban domestic waste is also increasing. At present, urban waste treatment methods mainly include landfill and incineration. Whether it is incineration or landfill, there are a series of subsequent environmental problems. [0003] The chemical conversion method can convert plastic waste into valuable industrial raw materials or fuel oil, which can not only eliminate environmental pollution, but also realize the sustainable development and utilization of resources, which is an effective way to control "white pollution". At present, the wa...

Claims

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Application Information

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IPC IPC(8): C10G67/02
CPCC10G67/02C10G2300/1003C10G2300/4006C10G2300/4012C10G2300/4018C10G2300/701C10G2300/202C10G2300/205C10G2400/04C10G2400/02
Inventor 习远兵张登前李中亚丁石赵广乐张锐鞠雪艳徐凯刘清河
Owner CHINA PETROLEUM & CHEM CORP
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