Oil-coal mixing process as well as designing method and application thereof

A mixing process, oil-coal technology, applied in mixing methods, petroleum industry, chemical instruments and methods, etc., can solve the problems of uneven mixing of oil-coal slurry two-phase, difficult transportation and measurement, and easy agglomeration of coal powder. The effect of short time, few programs, and even three-phase mixing

Active Publication Date: 2019-09-24
CATECH TECH
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  • Description
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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 agglomerati...

Method used

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  • Oil-coal mixing process as well as designing method and application thereof

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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 which comprises the following steps: conveying coal powder into a coal powder cabin, carrying out caching, evacuating waste gases, conveying the coal powder into an oil-coal mixing stirrer through vibration, conveying oil into the oil-coal mixing stirrer through an oil conveying pipeline, controlling that the mass ratio of the oil to the coal fed into the oil-coal mixing stirrer is (0.25-0.55):1, carrying out three-dimensional spiral stirring on the oil and the coal in the oil-coal mixing stirrer so as to obtain primary oil-coal slurry, respectively conveying the primary oil-coal slurry, residual oil and an oil-soluble catalyst into a secondary mixer, and carrying out stirring, so as to obtain oil-coal slurry. Through novel processes and parameters, oil-coal slurry with three uniform phases can be obtained through two times of stirring with simple procedures in a short time.

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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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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