A device and method for fluidized mining of coal slime water gas-liquid in old empty area

A technology of old empty area and conversion device, which is applied in the fields of coal gasification, preparation of liquid hydrocarbon mixture, and exploitation of fluids, etc., can solve problems such as waste of coal slime water resources

Active Publication Date: 2021-11-19
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a device and method for coal slime water-gas-liquid fluidized mining in the old empty area, so as to solve the problem of waste of coal slime water resources

Method used

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  • A device and method for fluidized mining of coal slime water gas-liquid in old empty area
  • A device and method for fluidized mining of coal slime water gas-liquid in old empty area
  • A device and method for fluidized mining of coal slime water gas-liquid in old empty area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The above-mentioned equipment for coal slime water-gas-liquid fluidized mining in the old empty area was used to conduct experiments on the conversion efficiency of coal slime at different temperatures. The experimental steps are as follows:

[0057] Step 1: Determine the experimental plan; assume that the experimental pressure is 5 atmospheres, no catalyst is added, and the experimental material comes from the coal slime water in the old empty area whose coal quality is lignite. The temperature is controlled by computer, and multiple experiments are carried out.

[0058] Step 2, sample preparation; sample preparation 0.5 cubic meters of coal slime water.

[0059] Step 3, air tightness inspection; connect the experimental devices in order, generate a certain amount of steam through the heater, and judge the air tightness by observing the value change of the pressure sensor on the slime water-gas liquefaction conversion box. If there is almost no change in the value of ...

Embodiment 2

[0071] The above-mentioned device for coal slime water-gas-liquid fluidized mining in the old empty area was used to conduct experiments on the conversion efficiency of coal slime under different pressures. The experimental steps are as follows:

[0072] Step 1: Determine the experimental plan; assume that the experimental temperature is 400°C, no catalyst is added, and the experimental material comes from the coal slime water in the old empty area whose coal quality is lignite. The pressure is controlled by computer, and multiple experiments are carried out.

[0073] Step 2, sample preparation; sample preparation 0.5 cubic meters of coal slime water.

[0074] Step 3, air tightness inspection; connect the experimental devices in order, generate a certain amount of steam through the heater, and judge the air tightness by observing the value change of the pressure sensor on the slime water-gas liquefaction conversion box. If there is almost no change in the value of the pressur...

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Abstract

The invention discloses a device and method for coal slime water-gas-liquid fluidized mining in an old empty area. The device includes a superheated steam device, a coal slime water gas liquefaction conversion device, a gas liquefaction product collection device, and a control device. The control device includes a temperature control device, a pressure control device, a pressure and temperature coordination device and a computer; , water supply pipeline, heater and steam pipeline; the coal slime water gas-liquid conversion device includes a coal slime water gas liquefaction conversion box, the gas liquefaction product collection device includes an oil collection device and a mixed gas collection device, the temperature control device is located inside the heater, and the pressure control The device is located in the coal slime water-gas liquefaction conversion box, the temperature and pressure coordination device includes an air pump; the computer is connected with the coal slime water-gas liquefaction conversion box and a heater. The invention takes the coal slime water in the old empty area as the research object, and realizes the coal slime water gas-liquid fluidized mining test under the conditions of given temperature, given pressure, and given coal rank.

Description

technical field [0001] The invention belongs to the technical field of coal-to-oil and coal-to-gas, and in particular relates to a device and method for coal slime water-gas-liquid fluidized mining in an old empty area. Background technique [0002] Coal liquefaction is an industrial technology that converts coal in a solid state to hydrogenation reaction under the action of a certain temperature and pressure and a catalyst, and directly converts coal into liquid oil. It is one of the important technologies for efficient and clean utilization of coal. [0003] Coal gasification, at a certain temperature and pressure, the organic matter in the coal is subjected to thermochemical processing with gasification agents such as steam, air or oxygen, and the solid coal is converted into combustible gases such as CO, oxygen, methane and non-combustible gases such as carbon dioxide and nitrogen. Gas synthesizer process. [0004] Due to the problem of coal mining technology, there is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00E21B43/295E21B43/34C10G1/00C10J3/00G01N33/22
CPCC10G1/00C10J3/00E21B43/00E21B43/295E21B43/34G01N33/22G01N33/222G01N33/225
Inventor 高杰姜海纳宋晓杰崔蛟林郝尉凯
Owner TAIYUAN UNIV OF TECH
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