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Aromatic hydrocarbon production process

一种芳香族烃、制造方法的技术，应用在烃裂化制烃、有机化学方法、化学仪器和方法等方向，能够解决氢消耗多、不为人所知等问题

Active Publication Date: 2013-05-08
JX NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the methods (1) and (2) have the following problems: high-pressure molecular hydrogen needs to be added, and hydrogen consumption is also high.
[0013] However, there is no known method for producing BTX with good yield using such thermally cracked heavy oil as feedstock oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0136] Hereinafter, the present invention will be more specifically described based on examples and comparative examples, but the present invention is not limited to these examples.

[0137] [Method for producing hydrotreated oil of thermally cracked heavy oil]

[0138] (Preparation of catalyst for hydroprocessing)

[0139] Water glass No. 3 was added to 1 kg of a sodium aluminate aqueous solution having a concentration of 5% by mass, and it was placed in a container kept at 70°C. In addition, in another container kept at 70°C, add an aqueous solution of titanium (IV) sulfate (TiO 2 content of 24% by mass), this solution was added dropwise to the aqueous solution containing sodium aluminate over 15 minutes. The quantities of the above-mentioned water glass and titanium sulfate aqueous solution are adjusted so as to achieve predetermined contents of silica and titania.

[0140] The point at which the pH of the mixed solution reached 6.9 to 7.5 was regarded as an end point, a...

preparation example 1

[0157] Preparation of catalysts containing Ga and phosphorus-supported crystalline aluminosilicates:

[0158] Prepare solution (A) and solution (B) respectively, solution (A) is made of 1706.1g of sodium silicate (J Sodium Silicate No. 3, SiO 2 : 28 to 30% by mass, Na: 9 to 10% by mass, the rest is water (manufactured by Nippon Chemical Industry Co., Ltd.) and 2227.5g of water, and the solution (B) is composed of 64.2g of Al 2 (SO 4 ) 3 ·14~18H 2 O (special grade reagent, manufactured by Wako Pure Chemical Industries, Ltd.), 369.2 g of tetrapropylammonium bromide, 152.1 g of H 2 SO 4 (97% by mass), 326.6 g of NaCl and 2975.7 g of water were formed.

[0159] Next, the solution (B) was slowly added to the solution (A) while stirring the solution (A) at room temperature. The resulting mixture was vigorously stirred with a mixer for 15 minutes to break the gel into a milky uniform fine state.

[0160] Next, this mixture was placed in a stainless steel autoclave, and crystal...

preparation example 2

[0166] Preparation of catalyst containing Zn and phosphorus-supported crystalline aluminosilicate:

[0167] Prepare solution (A) and solution (B) respectively, solution (A) is made of 1706.1g of sodium silicate (J Sodium Silicate No. 3, SiO 2 : 28 to 30% by mass, Na: 9 to 10% by mass, the rest is water (manufactured by Nippon Chemical Industry Co., Ltd.) and 2227.5g of water, and the solution (B) is composed of 64.2g of Al 2 (SO 4 ) 3 ·14~18H 2 O (special grade reagent, manufactured by Wako Pure Chemical Industries, Ltd.), 369.2 g of tetrapropylammonium bromide, 152.1 g of H 2 SO 4 (97% by mass), 326.6 g of NaCl and 2975.7 g of water were formed.

[0168] Next, the solution (B) was slowly added to the solution (A) while stirring the solution (A) at room temperature. The resulting mixture was vigorously stirred with a mixer for 15 minutes to break the gel into a milky uniform fine state.

[0169] Next, this mixture was placed in a stainless steel autoclave, and crystalli...

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Abstract

This aromatic hydrocarbon production process comprises bringing a raw material oil which contains a hydrogenated oil product of a thermally cracked heavy oil produced in an ethylene production apparatus into contact with a monocyclic aromatic hydrocarbon production catalyst which contains a crystalline aluminosilicate to produce an aromatic hydrocarbon. The raw material oil to be used has a distillation end point temperature of 400 DEG C or lower. The contact between the raw material oil and the monocyclic aromatic hydrocarbon production catalyst is carried out under a pressure of 0.1 to 1.5 MPaG.

Description

technical field [0001] The present invention relates to a method for producing aromatic hydrocarbons. [0002] This application claims priority based on Japanese Patent Application No. 2010-205666 for which it applied in Japan on September 14, 2010, and uses the content here. Background technique [0003] Cracked light oil (hereinafter referred to as "FCC") produced by a fluid catalytic cracking (hereinafter referred to as "FCC") device contains a large amount of polycyclic aromatic components, and has been mainly used as light oil and heavy oil until now. fraction. In recent years, there is a desire to use LCO and the like as raw materials to efficiently produce high-value-added monocyclic aromatic hydrocarbons with 6 to 8 carbon atoms (such as benzene, Toluene, crude xylene (xylene containing a small amount of ethylbenzene, etc.. Hereinafter, they are collectively referred to as "BTX") technology. [0004] As a method of producing BTX from polycyclic aromatic components...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/12B01J29/40C07B61/00C07C4/18C07C6/06C07C15/02C10G47/20
CPCB01J37/0201C10G2300/4018C07C4/18C10G65/046C10G2300/4012C10G2400/30C07C4/06C10G2300/301C07C2529/40C10G69/06C10G57/005C10G29/205B01J29/48B01J37/0009B01J23/882B01J29/06B01J29/061B01J29/405B01J37/0045C01B39/40B01J2229/186C01B39/065C10G35/095C10G45/68C10G69/08C10G9/00C10G51/04C10G63/04C10G69/04B01J35/40C07C15/02B01J29/40C10G47/20C10G65/00C10G65/12Y02P20/52
Inventor 柳川真一朗伊田领二小林正英
Owner JX NIPPON OIL & ENERGY CORP
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