Method for preparing diesel by hydrogenating anthracene oil of coal tar

A technology for coal tar and anthracene oil, which is applied in the fields of hydrogenation treatment process, petroleum industry, and hydrocarbon oil treatment. It can solve the problems that hydrogenation products cannot reach diesel oil and are not suitable, and achieve improved activity and selectivity and strong adsorption. ability, activity-enhancing effect

Active Publication Date: 2014-04-02
NINGBO JINYUANDONG PETROCHEM ENG TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above methods are not suitable for catalytic hydrogenation of high-boiling point II anthracene oil, and the hydrogenation products cannot reach the standard of diesel oil.

Method used

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  • Method for preparing diesel by hydrogenating anthracene oil of coal tar

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The hydrorefining catalyst (i.e., the first catalyst, the same below) used in this embodiment is B1, the hydrocracking catalyst (i.e., the second catalyst, the same below) is C1, and the contents of each component are shown in Table 2. The hydrodemetallization agent is a commercial FZC-103 catalyst. The following is the specific process of using this process to hydrogenate anthracene oil in a fixed-bed reactor to obtain diesel.

[0033] (1) Fill 150ml of hydrofinishing catalyst B1 and 20ml of demetallizing agent FZC-103 in the hydrofinishing reaction zone of the fixed bed reactor, and fill 120ml of hydrocracking catalyst C1 in the hydrocracking reaction zone.

[0034] (2) The anthracene oil raw material is continuously input by a plunger type metering pump, the feed temperature of the anthracene oil is 120° C., and the feed rate is 1 ml / min.

[0035] (3) According to the operating conditions of the hydrofining reaction zone: the reaction temperature is 360°C, the react...

Embodiment 2

[0037] The hydrorefining catalyst used in this example is B2, the hydrocracking catalyst is C2, and the contents of each component are shown in Table 2. The hydrodemetallization agent is a commercial FZC-103 catalyst. The following is the specific process of using this process to hydrogenate anthracene oil in a fixed-bed reactor to obtain diesel.

[0038] (1) Fill 200ml of hydrofinishing catalyst B2 and 20ml of demetallizing agent FZC-103 in the hydrofinishing reaction zone of the fixed bed reactor, and fill 150ml of hydrocracking catalyst C2 in the hydrocracking reaction zone.

[0039] (2) The anthracene oil raw material is continuously input by a plunger type metering pump, the feed temperature of the anthracene oil is 120° C., and the feed rate is 0.8 ml / min.

[0040] (3) According to the operating conditions of the hydrofining reaction zone: the reaction temperature is 370°C, the reaction pressure is 13MPa, the volume ratio of hydrogen to oil is 1500:1, and the volume spa...

Embodiment 3

[0042] The hydrorefining catalyst used in this example is B3, the hydrocracking catalyst is C3, and the contents of each component are shown in Table 2. The hydrodemetallization agent is a commercial FZC-103 catalyst. The following is the specific process of using this process to hydrogenate anthracene oil in a fixed-bed reactor to obtain diesel.

[0043] (1) Fill 200ml of hydrofinishing catalyst B3 and 25ml of demetallizing agent FZC-103 in the hydrofinishing reaction zone of the fixed bed reactor, and fill 180ml of hydrocracking catalyst C3 in the hydrocracking reaction zone.

[0044] (2) The anthracene oil raw material is continuously input by a plunger type metering pump, the feed temperature of the anthracene oil is 150° C., and the feed rate is 1.0 ml / min.

[0045] (3) According to the operating conditions of the hydrofining reaction zone: the reaction temperature is 370°C, the reaction pressure is 14MPa, the volume ratio of hydrogen to oil is 1500:1, and the volume spa...

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Abstract

The invention relates to a method for preparing diesel by hydrogenating anthracene oil. The method comprises the following steps: reacting anthracene oil in hydrogenation reaction region containing a first catalyst; allowing the product oil obtained in the hydrogenation reaction region to enter a hydrocracking reaction region containing a second catalyst to react to prepare a diesel component finished product. The method has the advantages that hydrofining catalysts can realize hydrodesulfurization, hydrodenitrification and hydrodeoxygenation of coal tar and can improve activity, so that aromatic hydrocarbon is saturated and subjected to ring opening; an aid potassium is added into the catalysts, so easy-to-coke substances of the coal tar can be inhibited from coking and blocking reactors and the stability of the catalysts is improved; the acidity of a carrier is effectively controlled by adjusting the adding ratio of titanium dioxide and cerium dioxide of the carrier, so that hydrocracking activity and selectivity are improved; the titanium dioxide has strong adsorption capability on sulfur, so desulfuration is promoted; the cerium dioxide has high melting point, so the stability of the carrier is improved and the service life of the catalysts is prolonged.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry, and in particular relates to a method for preparing diesel oil through hydrogenation of anthracene oil in high-temperature coal tar. Background technique [0002] Anthracene oil is an important part of coal tar components. In recent years, coal tar hydrogenation has attracted much attention in the coal chemical industry. It has been reported that hydrogenation of various fractions of coal tar as raw materials to prepare clean fuel oil has been reported. CN1351130A discloses a method for producing diesel oil by hydrogenation of coal tar. The method is to distill the whole fraction of coal tar, and hydrogenate the light fraction less than 370°C. The heavy fraction is not used as a hydrogenation raw material, and the catalyst used is hydrogenation Refining catalysts and dearomatization catalysts are mainly used for refining and removing impurities and saturating aromatic hydrocarbons....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/12
Inventor 项文裕项裕桥胡义波王华
Owner NINGBO JINYUANDONG PETROCHEM ENG TECH
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