Industrial white oil production method

A production method and technology of industrial white oil, applied in the petroleum industry, hydrocarbon oil treatment products, hydrocarbon oil treatment, etc., can solve the problems of low kinematic viscosity, aromatics content, high requirements for kinematic viscosity flash point, low flash point, etc. Achieve high flash point, good hydrogenation effect and good interaction effect

Active Publication Date: 2019-12-20
SHANDONG JINGBO PETROCHEM
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Problems solved by technology

[0003] However, the crude white oil originally produced by the diesel cracker still contains a small amount of aromatics, and has low kinematic viscosity and low flash point, while industrial white oil has extremely high requirements on the aromatic content, kinematic viscosity, and flash point of the product.

Method used

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Embodiment 1

[0099] (1) Catalyzed diesel oil and coked diesel oil are filtered through the filter respectively, and then enter the raw material oil buffer tank, then boosted by the hydrogenation feed pump and mixed with hydrogen, and then enter the reaction feed heating furnace for heating after exchanging heat through the heat exchanger When the inlet temperature of the first reactor is 300°C, enter the first reactor for refining reaction, and control the temperature rise to 50°C-80°C; the pressure of the refining reaction is 10.5MPa-12.5MPa, and the liquid hourly volume space velocity is 1h -1 ~3h -1 , the volume ratio of hydrogen to oil is (500-900): 1; a refined reaction product is obtained.

[0100] (2) The refined reaction product obtained in step (1) directly enters the second reactor for cracking reaction, and the temperature rise is controlled at 50° C. to 80° C.; for 1h -1 ~3h -1 , the volume ratio of hydrogen to oil is (500-900): 1; the cracking reaction product is obtained. ...

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Abstract

The invention provides an industrial white oil production method which comprises the following steps: a) mixing catalytic diesel oil, coking diesel oil and hydrogen, heating to the temperature of 260DEG C-420 DEG C, carrying out a refining reaction in a first reactor, and controlling the temperature rise to 50 DEG C-80 DEG C to obtain a refined reaction product; b) feeding the refined reaction product obtained in the step a) into a second reactor, carrying out a cracking reaction, and controlling the temperature to rise to 50 DEG C-80 DEG C to obtain a cracking reaction product; and c) carrying out gas-liquid separation on the cracking reaction product obtained in the step b), and recycling the obtained gas after desulfurization; and fractionating the obtained liquid to respectively obtain naphtha, light diesel oil and industrial white oil. Compared with the prior art, the production method provided by the invention has the advantages that the catalytic diesel oil and the coking diesel oil are used as raw materials, good interaction is realized under specific process steps, conditions and parameters, and the produced industrial white oil is low in aromatic hydrocarbon content, high in kinematic viscosity and flash point and good in market prospect and economic benefit.

Description

technical field [0001] The invention relates to the technical field of petroleum refining and processing, and more specifically relates to a production method of industrial white oil. Background technique [0002] Hydrogenation process is an important processing technology commonly used by petroleum refining and processing enterprises to remove or transform non-ideal components in raw materials and produce high-quality products that meet corresponding specifications. For example, if the crude white oil is produced by using the hydrocracking unit that originally produced heavy diesel oil, in the first reactor, sulfur, nitrogen, and oxygen-containing compounds in the raw material are generally removed, and olefins and some aromatics are hydrogenated and saturated; After passing through the second reactor, the ring-opening and cracking of polycyclic cycloalkanoaromatics is accompanied by the cleavage reaction of paraffins, and the aromatics in the raw material are removed or co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/02
CPCC10G67/02C10G2400/04C10G2400/14
Inventor 徐金凤栾波
Owner SHANDONG JINGBO PETROCHEM
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