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A kind of oil-coal mixing process and its design method and application

A mixing process, oil-coal technology, applied in the direction of mixing methods, petroleum industry, chemical instruments and methods, etc., can solve the problems of uneven mixing of two phases of oil-coal slurry, difficulty in transportation and measurement, easy agglomeration of coal powder, etc., to achieve The effect of short mixing program time, accurate control and avoiding agglomeration

Active Publication Date: 2021-08-27
CATECH TECH
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Problems solved by technology

[0005] In order to solve the problem of uneven mixing of the two phases in the oil-coal slurry and the problems of safety and catalyst activity caused by factors such as easy agglomeration and agglomeration of coal powder and high difficulty in transportation and metering in the prior art, the present invention proposes an oil-coal mixed Process and its design method and use

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  • A kind of oil-coal mixing process and its design method and application

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Embodiment Construction

[0034] For further elaborating specific features of the present invention, will combine figure 1 and specific examples are described.

[0035] An oil-coal mixing process, comprising the following processes:

[0036] The pulverized coal from the coal preparation device enters the pulverized coal bin 1, and the residence time in the pulverized coal bin 1 is 2 hours, where the temperature is 80°C, the pressure is a micro positive pressure of ≤80KPa, the normal material level is 60%, and the pulverized coal The particle size is 60-90μm. A measuring instrument 2, a remote oxygen concentration detector and a humidity detector are installed on the pulverized coal bin 1. During the buffering period, the emergency shut-off valve 3 is closed, and the weight of pulverized coal, oxygen concentration and temperature are measured, and the data is transmitted to the computer remotely. The shaft length of the conveyor 4 is 3.5 meters, and the vibration transmission prevents coal dust from ...

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Abstract

The invention relates to an oil-coal mixing process. The steps include: transporting pulverized coal into the buffer of a pulverized coal bunker, transporting the pulverized coal to an oil-coal mixing agitator through vibration after exhaust gas is evacuated, and transporting oil to the oil-coal mixing agitator through an oil pipeline. Coal mixing agitator, control the mass ratio of oil and coal entering the oil-coal mixing agitator to be 0.25-0.55:1, in the oil-coal mixing agitator, oil and coal are subjected to three-dimensional spiral stirring to obtain primary oil-coal slurry , transporting the primary oil-coal slurry, residual oil and oil-soluble catalyst to a secondary mixer for stirring to obtain oil-coal slurry. The present invention can obtain three-phase and more uniform oil-coal slurry through two times of stirring with short time and few procedures through new process and parameters.

Description

technical field [0001] The invention relates to an oil-coal mixing process, which is suitable for heavy oil and coal mixed refining projects, and belongs to the fields of oil refining chemical industry and coal chemical industry. Background technique [0002] Crude oil / heavy oil and coal integrated refining technology, and coal direct liquefaction to oil technology can make full use of my country's unique oil-rich coal resources, reduce dependence on imported oil, and promote industrial upgrading, quality improvement, efficiency improvement, energy conservation and emission reduction of my country's oil refining industry , to achieve high-quality development. The core of integrated refining technology and direct liquefaction technology is the oil-coal co-hydrogenation process. In order to realize the oil-coal co-hydrogenation reaction, it is first necessary to fully mix heavy oil, coal powder and hydrogenation catalyst. [0003] At present, the main problems in the raw mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/12C10G1/00
CPCC10G1/00B01F23/53
Inventor 李苏安王坤朋周学杰邓清宇曹立军
Owner CATECH TECH
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