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Method for extracting petrologen in oil shale

A technology for extracting kerogen and oil, which is applied in the petroleum industry and the preparation of liquid hydrocarbon mixtures. It can solve the problems of cumbersome processing and long time consumption, and achieve the effect of simple process and low energy consumption.

Inactive Publication Date: 2014-03-26
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems of cumbersome and time-consuming processing in existing methods, and provides a method for extracting kerogen in oil shale

Method used

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  • Method for extracting petrologen in oil shale
  • Method for extracting petrologen in oil shale
  • Method for extracting petrologen in oil shale

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specific Embodiment approach 1

[0019] Specific embodiment one: a kind of method for extracting kerogen in oil shale in this embodiment, carries out according to the following steps:

[0020] 1. Crush oil shale into oil shale powder, and sieve to obtain oil shale particles with a mesh number of 100 mesh to 300 mesh;

[0021] 2. Put oil shale particles with a mesh number of 100 mesh to 300 mesh into a polytetrafluoroethylene tube, then add a hydrofluoric acid solution with a mass fraction of 5% to 40% into the polytetrafluoroethylene tube, and shake for 5 minutes ~20min;

[0022] 3. Put the PTFE tube shaken in step 2 into a microwave digestion apparatus, and react for 5 minutes to 80 minutes under the conditions of microwave power of 400W-1000W and microwave temperature of 40°C-140°C to obtain a brown-black solid-liquid mixture ;

[0023] Four, then carry out suction filtration to the brown-black solid-liquid mixture that step 3 obtains, then adopt deionized water to wash filter residue, wash until the loti...

specific Embodiment approach 2

[0028] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 1, oil shale particles with a mesh number of 200 mesh are obtained by sieving. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that in step 2, a hydrofluoric acid solution with a mass fraction of 30% is added to the polytetrafluoroethylene tube. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a method for extracting petrologen in an oil shale and aims to solve the problems of complicated operating process and long operating time of the conventional method. The method comprises the following steps: 1, grinding the oil shale into oil shale particles with a certain particle size; 2, weighing and adding a certain amount of the oil shale particles and a hydrofluoric acid solution into a polytetrafluoroethylene tube, oscillating the polytetrafluoroethylene tube to enable the oil shale to be in full contact with the acid, putting the polytetrafluoroethylene tube into a microwave reactor, setting the microwave power, the microwave temperature and the microwave time, and performing quality enhancement treatment on the oil shale; 3, performing suction filtration on a sample through deionized water after the reaction is finished, washing the sample to neutrality, and drying to obtain the petrologen. The method disclosed by the invention is used for extracting the petrologen in the oil shale.

Description

technical field [0001] The invention relates to a method for extracting kerogen in oil shale. Background technique [0002] Oil shale is an unconventional oil and gas resource. It is rich in shale gas. Shale oil can be obtained through carbonization and refining. The composition is similar to petroleum, and it has the reputation of "man-made oil". At present, the international oil price is fluctuating at a high level, and the demand for oil continues to rise, which makes the development of oil shale refining technology a far-reaching energy strategic plan in the new century. Oil shale can also be used as fuel to generate electricity, and the remaining ash can also be used to extract chemical raw materials such as alumina and white carbon black. However, oil shale is a fossil fuel with high ash content and low combustion value, and the oil yield of shale oil extracted by dry distillation is also relatively low, which is mainly determined by the content and form of kerogen in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00
Inventor 宋微娜董永利薛丽梅魏立国丁慧贤张增凤解丽萍张俣
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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