Technique for producing terphenyl, indane and aromatics solvent oil by cracking C9 fraction and hydrogenation

A technology for aromatic solvent oil and distillate, which is applied in the fields of hydrotreating process, hydrocarbon oil treatment, hydrogenation hydrocarbon production, etc. It can solve the problems of low comprehensive utilization rate and waste of resources, etc., and achieve the improvement of aromatic hydrocarbon retention rate, avoid waste, and increase economy benefit effect

Active Publication Date: 2010-09-08
中国寰球工程有限公司辽宁分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, all production plants directly use or sell the cracked C9 fraction as low-g

Method used

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  • Technique for producing terphenyl, indane and aromatics solvent oil by cracking C9 fraction and hydrogenation
  • Technique for producing terphenyl, indane and aromatics solvent oil by cracking C9 fraction and hydrogenation
  • Technique for producing terphenyl, indane and aromatics solvent oil by cracking C9 fraction and hydrogenation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The cracking C9 raw material property that present embodiment adopts sees the following table:

[0039] Cracked C9 Fraction Composition

data

Aromatics, (% mass)

58～62

n-alkanes, (% mass)

1.1～1.2

Isoparaffins, (% mass)

30～31

Naphthenes, (% mass)

1～2

Monoolefins, (% mass)

28～30

Total sulfur, ppm

150～180

Total nitrogen, ppm

50～65

Colloid, mg / 100g

＜500

Bromine value, gBr / 100g

95

Diolefins, (% mass)

1～4

[0040] Cracked C9 Fraction Composition

data

Density, 20℃, g / ml

0.8921～0.895

Distillation range, ℃

Initial boiling point ~ 230

[0041] Specific process such as figure 1 Shown:

[0042] (1) Raw material pretreatment part: the cracked C9 raw material 22 first enters the heat exchanger 2 to exchange heat with the degumming tower bottom oil 23, and then enters the degumming tower 1 for degumming, ...

Embodiment 2

[0053] The cracking C9 raw material used in this example is the same as that in Example 1.

[0054] Such as figure 2 As shown, the one-stage hydrogenation reactor 4 and the gas-liquid separator 5 in this embodiment can be combined into one to form a two-in-one reactor 4-5, and the lower section of the reactor 4-5 is provided with a gas-liquid separation space; The stripping tower 15 and the solvent recovery tower 16 can be combined into one to form a stripping solvent recovery tower 15-16, which can reduce equipment investment and equipment investment.

[0055] Specific process flow:

[0056] (1) Raw material pretreatment part: Cracking C9 raw material 22 first enters heat exchanger 2 to exchange heat with degumming tower bottom oil 23, then enters degumming tower 1 for degumming, and the fraction <230°C is obtained at the top of the tower, and the tower bottom oil 23 exchanges heat with cracking C9 raw material 22 and exits the device.

[0057] (2) Hydrogenation part: the...

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PUM

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Abstract

The invention discloses a technique for producing terphenyl, indane and aromatics solvent oil by cracking C9 fraction and hydrogenation, belonging to the technical field of oil refining. The technique comprises the following parts: (1) raw material pretreatment part; (2) hydrogenation part; (3) aromatics extraction part; and (4) product refining part. By adopting the technique, benzene, toluene, dimethyl benzene, the indane and the aromatics solvent oil can be obtained by co-production, the comprehensive utilization rate of the cracked C9 fraction can be improved, the additional production value is increased, resource waste is avoided, the cracked C9 fraction is changed into valuable from waste, and the economic benefit is improved.

Description

1. Technical field [0001] The invention belongs to the technical field of petroleum refining, and in particular relates to a process for producing triphenyl, indane and aromatic solvent oil through hydrogenation of cracked C9 fraction. 2. Background technology [0002] In the process of pyrolysis of petroleum hydrocarbons to produce ethylene and propylene, there are a considerable amount of C5 and C9 fractions in the by-products. Their yield and composition vary with the type of cracking raw material, cracking depth and process conditions. Among them, the cracked C9 fraction accounts for about 10% to 20% of ethylene production. As we all know, cracking C9 fraction is rich in aromatics, which also contains about 15% to 20% of indene. Toluene) and valuable raw materials for high-boiling aromatic solvent oils. However, at present, all production plants directly use or sell the cracked C9 fraction as low-grade fuel, and the comprehensive utilization rate is low, resulting in a...

Claims

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Application Information

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IPC IPC(8): C10G67/00C07C7/04C07C15/04C07C15/06C07C15/08C07C13/465C07C5/03
Inventor 曾蓬房晶金月昶李柏张淑蓉王涛李静
Owner 中国寰球工程有限公司辽宁分公司
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