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A kind of processing method of phenol tar

A processing method and technology of phenol tar, applied in the petroleum industry, processing hydrocarbon oil, hydrocarbon distillation and other directions, can solve the problems of waste and difficult recovery of phenol products, and achieve the effects of reducing dosage, reducing emissions and improving utilization rate

Active Publication Date: 2018-06-19
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the purpose of the present invention is to solve the problem of waste of resources caused by the difficulty in recycling phenolic products in phenol tar and the fact that phenol tar can only be incinerated as solid waste, so as to increase the added value of the product

Method used

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  • A kind of processing method of phenol tar
  • A kind of processing method of phenol tar
  • A kind of processing method of phenol tar

Examples

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Effect test

Embodiment 1

[0016] The raw material is phenol tar selected from a refinery, and the specific properties are shown in Table 1. The feedstock for conventional coking is the vacuum residue of a refinery, and the outlet temperature of the heating furnace is 500°C. When the coke filling amount of the coke tower with the vacuum residue reaches 90% of the maximum safe coke filling height, stop the coke tower with the vacuum residue Coke charging, switch to 250°C phenol tar and continue to charge the coke tower through the steam purge pipeline of the coke tower. The amount of material is 10%, and the steam blowing time is 3.5h. The specific product distribution is shown in Table 2.

Embodiment 2

[0020] The outlet temperature of the conventional coking feed heating furnace is 510 ° C. When the coke filling amount of the coke tower with vacuum residue oil reaches the maximum safe coke filling height of 95%, stop the coke filling of the coke tower with vacuum residue oil and switch to phenol at 280 ° C. The tar continues to fill the coke tower through the steam purge pipeline of the coke tower. When the temperature in the coke tower is lower than 420°C, the phenol tar charging process is stopped. The final phenol tar accounts for 20% of the total coking feed, and the water vapor is small. The blowing time is 1h, and the big blowing time is 3h. The specific product distribution is shown in Table 3.

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Abstract

The invention discloses a phenol tar processing method, which comprises that a conventional coking raw material is heated by a heating furnace, the heated conventional coking raw material enters a coke tower, coke filling with the conventional coking raw material is stopped after the coke filling amount in the coke tower achieves 80-100% of the maximum coke filling height of the coke tower, preferably 90-95%, the coke filling is continuously performed through a coke tower steam purging pipeline by switching into phenol tar, the coke filling with phenol tar is stopped after the temperature in the coke tower is lower than 300-400 DEG C, preferably 350-400 DEG C, more preferably 380-400 DEG C, a water vapor purging process is performed, coking gas enters a fractionation tower and is subjected to fractionation to obtain naphtha, diesel oil, wax oil distillate, and the coke is obtained from the coking tower. With the method of the present invention, the added value of the phenol tar product can be increased.

Description

technical field [0001] The invention relates to a processing method of phenol tar. Background technique [0002] At present, the synthesis of phenol generally adopts the cumene method, that is, cumene is oxidized by air to generate cumene oxide, and cumene peroxide is further acidified and decomposed into phenol and acetone, and a certain amount of solid waste is produced as a by-product—“phenol-containing tar". Since phenolic tar contains a large amount of toxic volatile components, burning it in an open environment will cause serious air pollution, so it is difficult to recover heat as a fuel. For the sake of environmental protection, phenol tar generally needs to be incinerated in a special incinerator during the normal production process. In this case, it is impossible to recover a large number of high value-added products contained in phenolic tar, and it is necessary to increase investment in solid waste treatment, so there is no commercial value. If phenolic tar can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G7/00
CPCC10G7/006C10G2300/1003
Inventor 初人庆李晓姝郭丹刘继华乔凯勾连忠
Owner CHINA PETROLEUM & CHEM CORP
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