CN215640435U - Automatic preparation system of kerogen - Google Patents
Automatic preparation system of kerogen Download PDFInfo
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- CN215640435U CN215640435U CN202121227801.3U CN202121227801U CN215640435U CN 215640435 U CN215640435 U CN 215640435U CN 202121227801 U CN202121227801 U CN 202121227801U CN 215640435 U CN215640435 U CN 215640435U
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Abstract
The utility model discloses an automatic kerogen preparation system which comprises an acid tank, a water storage tank, a first peristaltic pump, a second peristaltic pump, a third peristaltic pump, a hydrochloric acid tank, a hydrofluoric acid tank, a water solution tank, a fourth peristaltic pump, a fifth peristaltic pump, a kerogen extraction device and a nitrogen bottle, wherein the first peristaltic pump is connected with the second peristaltic pump; the kerogen extraction device is provided with a double-layer pipe communicated with the inner cavity, the double-layer pipe is provided with an inner pipe and an outer pipe, and the inner pipe is respectively communicated with the nitrogen cylinder, the fourth peristaltic pump and the fifth peristaltic pump through pipelines; a pressure reducing valve is arranged between the nitrogen cylinder and the double-layer pipe; the acid tank is respectively communicated with the hydrochloric acid tank and the hydrofluoric acid tank through a first peristaltic pump and a second day peristaltic pump, the water storage tank is communicated with the aqueous solution tank through the second day peristaltic pump, and the hydrochloric acid tank is respectively communicated with a fourth peristaltic pump and a fifth peristaltic pump; the hydrofluoric acid tank is also respectively communicated with the fourth peristaltic pump and the fifth peristaltic pump; the water solution tank is also respectively communicated with the fourth peristaltic pump and the fifth peristaltic pump. The utility model is an automatic preparation system which can automatically extract kerogen.
Description
Technical Field
The utility model relates to an automatic preparation system for kerogen.
Background
Kerogen is a dispersed organic matter of sedimentary rock that is insoluble in alkalis, non-oxidizing acids, and organic solvents, and is a condensation polymer formed at moderate temperatures and pressures, accounting for approximately 90% of the organic matter in sedimentary rock.
Kerogen is considered a raw oil starting material. Kerogen will generally be classified into three categories depending on the biological source. The first type is a sapropel type organic matter, belongs to an organic matter with the best quality, is I type kerogen, and is mainly derived from phytoplankton in water. The second type is humic organic matter, belongs to organic matter with poor quality, is type III kerogen, and is mainly derived from higher plants. The third type is a mixed organic matter between the first type and the second type, belongs to a good-quality organic matter and is a type II kerogen. The analysis and research on the composition, the structure and the like of kerogen have a plurality of benefits for the development of oil and gas reservoirs. The primary task of analytical investigation of kerogen is to separate it from sedimentary rocks, thus requiring the use of kerogen preparation equipment, but now lacking a complete automated preparation system.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the prior art, the utility model provides an automatic preparation system for kerogen.
The technical scheme provided by the utility model for solving the technical problems is as follows: an automatic preparation system for kerogen comprises an acid tank, a water storage tank, a first peristaltic pump, a second peristaltic pump, a third peristaltic pump, a hydrochloric acid tank, a hydrofluoric acid tank, a water solution tank, a fourth peristaltic pump, a fifth peristaltic pump, a kerogen extraction device and a nitrogen bottle;
the kerogen extraction device is provided with a double-layer pipe communicated with the inner cavity, the double-layer pipe is provided with an inner pipe and an outer pipe, and the inner pipe is respectively communicated with the nitrogen bottle, the fourth peristaltic pump and the fifth peristaltic pump through pipelines; the outer wall of the double-layer pipe is provided with a safety valve communicated with the outer pipe; a pressure reducing valve is arranged between the nitrogen cylinder and the double-layer pipe;
the acid tank is respectively communicated with a hydrochloric acid tank and a hydrofluoric acid tank through a first peristaltic pump and a second day peristaltic pump, the water storage tank is communicated with a water solution tank through the second day peristaltic pump, and the hydrochloric acid tank is respectively communicated with a fourth peristaltic pump and a fifth peristaltic pump; the hydrofluoric acid tank is also respectively communicated with a fourth peristaltic pump and a fifth peristaltic pump; the water solution tank is also respectively communicated with the fourth peristaltic pump and the fifth peristaltic pump.
The further technical scheme is that a waste liquid discharge system is arranged at the bottom of the kerogen extraction device.
The further technical scheme is that the waste liquid discharge system comprises a waste liquid suction pump and a waste liquid neutralizing tank, wherein the liquid inlet end and the liquid outlet end of the waste liquid suction pump are respectively communicated with the bottom of the inner cavity of the kerogen extraction device and the waste liquid neutralizing tank through pipelines.
The further technical scheme is that the waste liquid discharge system further comprises an alkali liquor tank, a sixth peristaltic pump, a sodium hydroxide tank and a seventh peristaltic pump, wherein the alkali liquor tank is communicated with the sodium hydroxide tank through the sixth peristaltic pump; and the sodium hydroxide tank is communicated with the waste liquid neutralizing tank through a seventh peristaltic pump.
The further technical scheme is that the sodium hydroxide tank is a hastelloy tank.
The further technical scheme is that the hydrochloric acid tank and the hydrofluoric acid tank are both Monel alloy tanks.
The further technical proposal is that the water solution tank is a stainless steel tank.
The technical scheme is that the automatic kerogen preparation system further comprises a vacuum tank, a vacuum buffer tank, a vacuum pump and an acid gas adsorption tank, wherein the outer tube of the double-layer tube, the vacuum tank, the vacuum buffer tank, the vacuum pump and the acid gas adsorption tank are communicated in sequence through pipelines, and an exhaust port is formed in the acid gas adsorption tank.
The further technical scheme is that the outer pipe of the double-layer pipe is communicated with the bottom of the inner cavity of the vacuum tank.
The further technical scheme is that the vacuum tank is communicated with the bottom of the inner cavity of the vacuum buffer tank.
The utility model has the following beneficial effects: the utility model is a set of automatic preparation system, which can automatically complete the extraction of kerogen; the traditional stirring mode is changed, and a gas pulse method is adopted to regularly release nitrogen into the reactor to stir the sample; and the vacuum pump is adopted to completely pump out the air in the kerogen extraction device, so that the air is not mixed in the subsequent steps of soaking, pickling, washing, neutralizing and the like of the sedimentary rock sample, and the kerogen is not oxidized by oxygen, so that the chemical property of the extracted kerogen is not changed.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the automatic preparation system for kerogen of the present invention comprises an acid tank 1, a water storage tank 2, a first peristaltic pump 4, a peristaltic pump 5 for the second day, a third peristaltic pump 6, a hydrochloric acid tank 8, a hydrofluoric acid tank 9, an aqueous solution tank 10, a fourth peristaltic pump 14, a fifth peristaltic pump 15, a kerogen extraction device 17, and a nitrogen gas bottle 25; the kerogen extraction device 17 is provided with a double-layer tube 21 communicated with the inner cavity, the double-layer tube 21 is provided with an inner tube and an outer tube, and the inner tube is respectively communicated with a nitrogen bottle 25, a fourth peristaltic pump 14 and a fifth peristaltic pump 15 through pipelines; a safety valve 22 communicated with the outer pipe is arranged on the outer wall of the double-layer pipe 21; a pressure reducing valve 23 is arranged between the nitrogen cylinder 25 and the double-layer pipe 21; the acid tank 1 is respectively communicated with a hydrochloric acid tank 8 and a hydrofluoric acid tank 9 through a first peristaltic pump 4 and a second day peristaltic pump 5, the water storage tank 2 is communicated with a water solution tank 10 through the second day peristaltic pump 5, and the hydrochloric acid tank 8 is respectively communicated with a fourth peristaltic pump 14 and a fifth peristaltic pump 15; the hydrofluoric acid tank 9 is also respectively communicated with a fourth peristaltic pump 14 and a fifth peristaltic pump 15; the tank 10 is also in communication with a fourth peristaltic pump 14, a fifth peristaltic pump 15, respectively.
As shown in fig. 1, in this embodiment, for better environmental protection, a waste liquid discharge system is preferably arranged at the bottom of the kerogen extracting device 17, and the waste liquid discharge system comprises a waste liquid suction pump 16 and a waste liquid neutralization tank 13, and the liquid inlet end and the liquid outlet end of the waste liquid suction pump 16 are respectively communicated with the bottom of the inner cavity of the kerogen extracting device 17 and the waste liquid neutralization tank 13 through pipelines.
The waste liquid is only stored in the waste liquid neutralizing tank 13, and potential safety hazards exist, so the waste liquid discharge system further comprises an alkali liquor tank 3, a sixth peristaltic pump 7, a sodium hydroxide tank 11 and a seventh peristaltic pump 12, wherein the alkali liquor tank 3 is communicated with the sodium hydroxide tank 11 through the sixth peristaltic pump 7; the sodium hydroxide tank 11 is communicated with a waste liquid neutralization tank 13 through a seventh peristaltic pump 12.
In this embodiment, the sodium hydroxide tank 11 is a hastelloy tank, the hydrochloric acid tank 8 and the hydrofluoric acid tank 9 are both monel tanks, and the aqueous solution tank 10 is a stainless steel tank.
As shown in fig. 1, in this embodiment, the automatic preparation system for kerogen further includes a vacuum tank 18, a vacuum buffer tank 19, a vacuum pump 24, and an acid gas adsorption tank 20, the outer tube of the double-layer tube 21, the vacuum tank 18, the vacuum buffer tank 19, the vacuum pump 24, and the acid gas adsorption tank 20 are sequentially communicated through a pipeline, the acid gas adsorption tank 20 is provided with an exhaust port, the outer tube of the double-layer tube 21 is communicated with the bottom of the inner cavity of the vacuum tank 18, and the vacuum tank 18 is communicated with the bottom of the inner cavity of the vacuum buffer tank 19.
The workflow of the overall system as shown in fig. 1 is:
step one, putting a rock sample into a kerogen extraction device 17, starting a fifth peristaltic pump 15 to inject distilled water into the kerogen extraction device 17 to soak the rock sample, and opening a waste liquid suction pump 16 to suck upper clear liquid into a waste liquid neutralization tank 13 after 2-4 hours;
step two, opening a fourth peristaltic pump 14, slowly adding hydrochloric acid with the concentration of 6mol/L into the rock sample, simultaneously opening a valve and a pressure reducing valve 23 of a nitrogen cylinder 25, inflating the kerogen extraction device 17, stirring for 1-2 hours at the temperature of 60-70 ℃ to fully decompose carbonate rock, opening a waste liquid suction pump 16 to suck the acid liquid into a waste liquid neutralization tank 13, washing the acid liquid with distilled water to weak acidity, and removing clear liquid; starting a vacuum pump, pumping waste acid gas generated by reaction into an acid gas adsorption box 20 for treatment, and then discharging the waste acid gas through an exhaust outlet, and pumping waste liquid in a vacuum tank 18 and a vacuum buffer pump tank 19 into a waste liquid neutralization box 13 through a waste liquid suction pump 16;
step three, slowly adding hydrochloric acid with the concentration of 6mol/L and 40% hydrofluoric acid into a human sample according to the requirement in proportion, simultaneously opening a valve of a nitrogen bottle 25 and a pressure reducing valve 23, inflating the kerogen extraction device 17, stirring for 2 hours at the temperature of 60-70 ℃, opening a waste liquid suction pump 16, sucking acid liquid into a waste liquid neutralization tank 13, washing for three times by using 1mol/L hydrochloric acid, and removing clear liquid;
step four, synchronous step 2, stirring for 1h, washing for three times by using 1mol/L hydrochloric acid, and removing clear liquid;
step five, synchronous step 3, stirring for 4 hours, washing three times by using 1mol/L hydrochloric acid, and removing clear liquid;
step six, step 4, stirring for 1 hour, washing with distilled water to weak acidity, and removing clear liquid;
and seventhly, performing heavy liquid flotation, and treating the heavy liquid according to standard requirements by using an ultrasonic cleaner and a centrifugal machine.
Although the present invention has been described with reference to the above embodiments, it should be understood that the present invention is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention.
Claims (10)
1. An automatic preparation system for kerogen is characterized by comprising an acid tank (1), a water storage tank (2), a first peristaltic pump (4), a peristaltic pump (5) for the next day, a third peristaltic pump (6), a hydrochloric acid tank (8), a hydrofluoric acid tank (9), an aqueous solution tank (10), a fourth peristaltic pump (14), a fifth peristaltic pump (15), a kerogen extraction device (17) and a nitrogen bottle (25);
the kerogen extraction device (17) is provided with a double-layer pipe (21) communicated with the inner cavity, the double-layer pipe (21) is provided with an inner pipe and an outer pipe, and the inner pipe is respectively communicated with a nitrogen bottle (25), a fourth peristaltic pump (14) and a fifth peristaltic pump (15) through pipelines; a safety valve (22) communicated with the outer pipe is arranged on the outer wall of the double-layer pipe (21), and a pressure reducing valve (23) is arranged between the nitrogen cylinder (25) and the double-layer pipe (21);
the acid tank (1) is respectively communicated with a hydrochloric acid tank (8) and a hydrofluoric acid tank (9) through a first peristaltic pump (4) and a second peristaltic pump (5), the water storage tank (2) is communicated with a water solution tank (10) through the second peristaltic pump (5), and the hydrochloric acid tank (8) is respectively communicated with a fourth peristaltic pump (14) and a fifth peristaltic pump (15); the hydrofluoric acid tank (9) is also respectively communicated with a fourth peristaltic pump (14) and a fifth peristaltic pump (15); the water solution tank (10) is also respectively communicated with a fourth peristaltic pump (14) and a fifth peristaltic pump (15).
2. An automatic kerogen preparation system according to claim 1, characterized in that the bottom of the kerogen extraction device (17) is provided with a waste liquid discharge system.
3. An automatic kerogen preparation system according to claim 2, wherein the waste liquid discharge system comprises a waste liquid suction pump (16) and a waste liquid neutralization tank (13), and the liquid inlet end and the liquid outlet end of the waste liquid suction pump (16) are respectively communicated with the bottom of the inner cavity of the kerogen extraction device (17) and the waste liquid neutralization tank (13) through pipelines.
4. An automatic kerogen preparation system according to claim 3, wherein the waste liquid discharge system further comprises a lye tank (3), a sixth peristaltic pump (7), a sodium hydroxide tank (11) and a seventh peristaltic pump (12), the lye tank (3) is communicated with the sodium hydroxide tank (11) through the sixth peristaltic pump (7); the sodium hydroxide tank (11) is communicated with a waste liquid neutralizing tank (13) through a seventh peristaltic pump (12).
5. An automatic kerogen preparation system according to claim 4 wherein the sodium hydroxide tank (11) is a hastelloy tank.
6. The automatic kerogen preparation system according to claim 1, wherein the hydrochloric acid tank (8) and the hydrofluoric acid tank (9) are Monel metal tanks.
7. An automatic kerogen preparation system according to claim 1 wherein the aqueous solution tank (10) is a stainless steel tank.
8. The automatic kerogen preparation system according to claim 1, further comprising a vacuum tank (18), a vacuum buffer tank (19), a vacuum pump (24) and an acid gas adsorption tank (20), wherein the outer tube of the double-layer tube (21), the vacuum tank (18), the vacuum buffer tank (19), the vacuum pump (24) and the acid gas adsorption tank (20) are sequentially communicated through pipelines, and an exhaust port is arranged on the acid gas adsorption tank (20).
9. An automatic kerogen preparation system according to claim 8 wherein the outer tube of the double tube (21) is in communication with the bottom of the inner cavity of the vacuum tank (18).
10. An automatic kerogen preparation system according to claim 8 wherein the vacuum tank (18) communicates with the bottom of the inner cavity of the vacuum buffer tank (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121227801.3U CN215640435U (en) | 2021-06-03 | 2021-06-03 | Automatic preparation system of kerogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121227801.3U CN215640435U (en) | 2021-06-03 | 2021-06-03 | Automatic preparation system of kerogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215640435U true CN215640435U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121227801.3U Active CN215640435U (en) | 2021-06-03 | 2021-06-03 | Automatic preparation system of kerogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215640435U (en) |
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2021
- 2021-06-03 CN CN202121227801.3U patent/CN215640435U/en active Active
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