Method and apparatus for evaluating characteristics of coal direct liquefaction reaction

A technology for direct liquefaction and reaction of coal, applied in the petroleum industry, hydrotreating process, processing hydrocarbon oil, etc., can solve the problems of expensive equipment, inaccurate models, inaccurate calculation results, etc. The effect of equipment investment

Active Publication Date: 2018-03-16
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Abstract
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Problems solved by technology

Ignoring the inaccurate calculation results of the gas holdup, the provided kinetic data has errors, and the established model is not very accurate
Although in the coal liquefaction

Method used

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  • Method and apparatus for evaluating characteristics of coal direct liquefaction reaction
  • Method and apparatus for evaluating characteristics of coal direct liquefaction reaction

Examples

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Embodiment 1

[0117] This example illustrates the method for evaluating the reaction characteristics of direct coal liquefaction according to the present invention.

[0118] (1) Gas holdup in direct coal liquefaction reaction

[0119] The density of the circulating solvent for direct coal liquefaction was measured at 20°C, 40°C, 60°C, 80°C and 90°C, and the relationship between the density and temperature of the direct coal liquefaction circulating solvent was obtained by linear regression:

[0120] ρ=0.99-0.0006×T; (where, T is the temperature, °C; ρ is the density of the circulating solvent for direct coal liquefaction, g / cm 3 ).

[0121] Further extrapolation obtained the density of the coal direct liquefaction circulating solvent at 440°C for the following experiments.

[0122] Start the device (such as figure 1 ), wherein the effective volume of the stirred tank reactor is 1.8L. Add the coal direct liquefaction circulating solvent in the oil washing tank (with 80 mesh screen), and ...

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Abstract

The invention relates to the field of evaluation of characteristics of coal direct liquefaction reactions, and discloses a method and an apparatus for evaluating the characteristics of a coal direct liquefaction reaction. The method comprises: (1) inputting a hydrogenation circulation solvent and hydrogen into a stirring kettle reactor, and determining and calculating the coal direct liquefactionreaction gas content under a coal direct liquefaction reaction condition, wherein the material enters from the bottom portion and the material is discharged from the top portion in the inputting process; and (2) mixing coal powder, the hydrogenation circulation solvent and a catalyst to prepare a coal slurry, introducing the raw materials comprising the coal slurry and hydrogen into the stirring kettle reactor, carrying out a coal direct coal liquefaction reaction, and determining the coal direct coal liquefaction reaction time according to the coal slurry feeding amount, the coal direct liquefaction reaction gas content and the effective volume of the stirring kettle reactor. With the method and the apparatus of the present invention, the gas content, the reaction time and the reaction characteristic of the coal direct liquefaction reaction can be determined so as to provide the more basic data for the coal direct liquefaction reaction kinetics research and the industrial design.

Description

technical field [0001] The invention relates to the field of evaluation of reaction characteristics of direct coal liquefaction, and relates to a method and a device for evaluating the reaction characteristics of direct coal liquefaction. Background technique [0002] Coal direct liquefaction technology refers to the technology in which oil-coal slurry undergoes hydrocracking reaction with hydrogen under the action of catalyst under high temperature and high pressure to generate liquid fuel. It is a kind of clean coal conversion technology, which can convert high-sulfur coal into clean fuel. Evaluating the reaction characteristics of direct coal liquefaction is one of the key technologies in the research and development of direct coal liquefaction technology. [0003] At present, the devices for evaluating the reaction characteristics of coal direct liquefaction are intermittent evaluation devices and small continuous evaluation devices. Batch evaluation devices usually in...

Claims

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Application Information

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IPC IPC(8): C10G67/02
CPCC10G67/02
Inventor 艾军金环年马辉门卓武赵俊鹏
Owner CHNA ENERGY INVESTMENT CORP LTD
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