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Device and method for carrying out microwave thermal desorption on oil-containing drilling cuttings

A thermal analysis and microwave technology, applied in the field of petrochemical industry, can solve the problems of uneven distribution of nitrogen, influence on deoiling rate, difference in deoiling rate, etc., and achieve the effect of improving the overall deoiling rate and improving uneven distribution

Inactive Publication Date: 2014-11-12
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The uneven distribution of nitrogen will affect the reaction, resulting in differences in the deoiling rate of different parts of the material, which in turn affects the overall deoiling rate

Method used

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  • Device and method for carrying out microwave thermal desorption on oil-containing drilling cuttings
  • Device and method for carrying out microwave thermal desorption on oil-containing drilling cuttings
  • Device and method for carrying out microwave thermal desorption on oil-containing drilling cuttings

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Embodiment 1

[0033] Such as figure 1 Shown is the apparatus diagram of the present invention.

[0034] The microwave generation and conduction unit is used to generate microwaves and conduct the generated microwaves to the reaction unit;

[0035] The reaction unit is used to receive the microwave from the microwave generation and conduction unit, and make it act on oily drill cuttings;

[0036] A nitrogen purge unit is used to flow the nitrogen gas flow into the reaction unit to remove air and entrain the oil gas produced by the reaction, and the nitrogen purge unit can control the flow rate of the nitrogen gas flow;

[0037] The condensation and separation unit is used to cool the oil and gas produced by the reaction to condense it into a liquid phase.

[0038] Among them, the microwave generation and conduction unit includes:

[0039] microwave generator 1;

[0040] The waveguide converter 2 is connected to the microwave generator 1, and the waveguide converter 2 is also equipped wit...

Embodiment 2

[0050] Introduce the using method of device of the present invention in detail below:

[0051] (1) Load an appropriate amount of oily cuttings into the lower part of the reactor 7. The oily cuttings are from Well Pengye 2, with an oil content of 15.3%, a water content of 4%, and a density of 2120kg / m 3 . The loading amount of oily drilling cuttings in the experiment is 30g. Then the upper and lower parts of the reactor 7 are sealed and placed in the single mold cavity 5 .

[0052] (2) Connect the five nitrogen pipelines 12 with the lower part of the reactor 7, then connect the receiver 8 with the upper part of the reactor 7, and check the airtightness of each connection.

[0053] (3) Turn on the microwave generator 1, set the microwave power used to 3kW, feed nitrogen at the same time, adjust the total rate of nitrogen to 1.5L / min, and adjust the nitrogen feed rate of each pipeline as required. Make the microwave act on oily drill cuttings at this power for 30 seconds. Ad...

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Abstract

The invention discloses a device for carrying out microwave thermal desorption on oil-containing drilling cuttings. The device comprises a microwave generation and conduction unit, a reaction unit, a nitrogen purging unit and a condensation and separation unit; the microwave generation and conduction unit is used for generating micro waves and conducting the generated micro waves to a reaction unit; (ii) the reaction unit is used for receiving the micro waves from the microwave generation and conduction unit and enabling the micro waves to act on the oil-containing drilling cuttings; (iii) the nitrogen purging unit comprises a nitrogen source, a flow controller and at least two nitrogen pipelines, is used for inputting at least two bunches of nitrogen flow into the reaction unit so as to remove air together with oil gas generated by reaction and is capable of controlling the flow velocity of the nitrogen flow; (iv) the condensation and separation unit is used for cooling the oil gas which is generated by the reaction and condensing the oil gas into liquid phase. The invention also discloses a method for carrying out the microwave thermal desorption on the oil-containing drilling cuttings by using the device.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and relates to a device for separating organic matter from waste containing crude oil and a method for using the same, in particular to a device and a method for microwave treatment of waste containing oil. Background technique [0002] In the process of oil exploitation, a large amount of oily drilling cuttings will be produced. The main components of oily drilling cuttings are diesel oil, sediment and water. If they are discharged directly without treatment, on the one hand, it will have a serious impact on the environment, and on the other hand, it will cause waste of resources. Therefore, the main goal of this study is to realize the harmless and resource recovery of oily drilling cuttings. [0003] At present, domestic and foreign methods of processing oily cuttings mainly include: incineration, pyrolysis, biological treatment, solvent extraction, solidification, mechanical dehydration,...

Claims

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Application Information

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IPC IPC(8): E21B21/01B01J19/12
Inventor 商辉林永学张文慧王显光石金春何恕李雄
Owner CHINA PETROLEUM & CHEM CORP
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