CN219217922U

CN219217922U - Synthetic gas purifying device

Info

Publication number: CN219217922U
Application number: CN202320535023.7U
Authority: CN
Inventors: 高永刚; 林梓; 周凯旋; 江南; 贾露露
Original assignee: NANJING RONGXIN CHEMICAL CO Ltd
Current assignee: NANJING RONGXIN CHEMICAL CO Ltd
Priority date: 2023-03-18
Filing date: 2023-03-18
Publication date: 2023-06-20
Anticipated expiration: 2033-03-18

Abstract

The utility model discloses a synthetic gas purifying device, which comprises a separation box, wherein a booster pump for pressurizing synthetic gas to be treated is arranged at the top of the separation box, a spiral pipe is arranged at the output end of the booster pump, the spiral pipe is arranged in the separation box, a pressure limiting valve for maintaining the synthetic gas pressure in the spiral pipe and discharging the synthetic gas is arranged at the output end of the spiral pipe, a compressor is arranged outside the separation box and used for compressing a refrigerant in the separation box, and then the interior of the separation box is refrigerated through the change of the gas and the liquid of the refrigerant; on the one hand, the liquefaction or solidification temperature value of organic matter impurities in the synthesis gas is reduced by pressurizing the synthesis gas, and the synthesis gas is further cooled by a refrigerant, so that the impurities in the synthesis gas are liquefied or solidified, the organic matter impurities are condensed, and the impurity organic matters are completely separated from the synthesis gas.

Description

Synthetic gas purifying device

Technical Field

The utility model relates to the technical field of synthesis gas production and purification equipment, in particular to a synthesis gas purification device.

Background

The synthesis gas is a raw material gas which uses carbon monoxide and hydrogen as main components and is used as chemical raw materials. The raw materials of the synthesis gas have wide range, can be produced by gasifying solid fuels such as coal or coke, can be prepared from light hydrocarbons such as natural gas and naphtha, and can also be produced by a partial oxidation method from heavy oil.

After the synthesis gas is produced, the synthesis gas contains some macromolecular organic matters, and in the past, an adsorption filtration or extraction method is adopted, so that the impurity matters cannot be thoroughly removed due to insufficient contact between the gas and an extractant, and therefore, the extracted synthesis gas needs to be further purified and purified, and a synthesis gas purifying device is now proposed to solve the problems.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, an object of the present utility model is to provide a synthesis gas purifying apparatus, which is capable of reducing the liquefaction or solidification temperature value of organic impurities in the synthesis gas by pressurizing the synthesis gas, and further cooling the synthesis gas by a refrigerant to liquefy or solidify the impurities in the synthesis gas, thereby condensing the impurities and realizing the purpose of completely separating the impurity organic matters from the synthesis gas.

In order to achieve the above object, a first aspect of the present utility model provides a synthesis gas purification device, including a separation tank, a booster pump for pressurizing synthesis gas to be treated is provided at the top of the separation tank, a spiral pipe is provided at an output end of the booster pump, the spiral pipe is provided inside the separation tank, a pressure limiting valve for maintaining the synthesis gas pressure in the spiral pipe and discharging the synthesis gas is provided at an output end of the spiral pipe, a compressor is provided at an exterior of the separation tank, the compressor is used for compressing a refrigerant inside the separation tank, and further refrigerating the separation tank through a change of refrigerant gas and liquid, a refrigerant feeding pipe is provided at a refrigerant input end of the compressor, a refrigerant feeding pipe is provided at a refrigerant output end of the compressor, and the refrigerant feeding pipe are respectively communicated with two ends of the separation tank.

According to the synthesis gas purification device, on one hand, the synthesis gas is pressurized, the liquefaction or solidification temperature value of organic matter impurities in the synthesis gas is reduced, and the synthesis gas is further cooled by a refrigerant, so that the impurities in the synthesis gas are liquefied or solidified, the organic matter impurities are condensed, and the impurity organic matters are completely separated from the synthesis gas.

In addition, the synthetic gas purifying device proposed according to the application above may also have the following additional technical features:

in an embodiment of the present application, the spiral pipe material is high heat conduction material, the bottom of spiral pipe is provided with prevents stifled storage tank, prevent stifled storage tank for collect the impurity of spiral pipe internal cooling liquefaction or solidification.

In one embodiment of the present application, the input end of the booster pump is provided with a first filter for filtering large particles and liquid impurities in the synthesis gas, and the input end of the first filter is provided with a synthesis gas inlet pipe.

In one embodiment of the present application, a second filter is disposed between the spiral tube and the pressure limiting valve, and the second filter is used for filtering impurities cooled, liquefied or solidified in the spiral tube.

In one embodiment of the present application, the compressor is a high pressure nitrogen compressor, a detachable fixing strap is provided on the compressor, and the compressor is connected with the separation tank through the fixing strap.

In one embodiment of the present application, the separator tank is provided with a thermometer for detecting the internal temperature thereof, and the spiral pipe is provided with a barometer for detecting the internal air pressure thereof.

In one embodiment of the application, the inner wall of the separation box is provided with an insulation layer, and the insulation layer is made of an insulation foam board.

In one embodiment of the present application, the pressure limiting valve is a pressure limiting valve with an adjustable pressure limiting value, and an output end of the pressure limiting valve is provided with a synthesis gas discharge pipe.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a syngas purification apparatus according to one embodiment of the utility model;

FIG. 2 is a cross-sectional view of a syngas purification apparatus according to one embodiment of the utility model;

as shown in the figure: 1. a separation box; 2. a first filter; 3. a booster pump; 4. a thermometer; 5. a barometer; 6. a pressure limiting valve; 7. a refrigerant feeding pipe; 8. a compressor; 81. a fixing belt; 82. a refrigerant delivery pipe; 9. a heat preservation layer; 10. a spiral tube; 101. anti-blocking storage grooves; 11. and a second filter.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. On the contrary, the embodiments of the utility model include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.

A syngas purification apparatus according to an embodiment of the utility model is described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a syngas purification apparatus according to one embodiment of the utility model.

As shown in fig. 1-2, the synthesis gas purification device according to the embodiment of the present utility model may include a separation tank 1, a booster pump 3 for pressurizing synthesis gas to be processed is disposed at the top of the separation tank 1, a spiral pipe 10 is disposed at an output end of the booster pump 3, the spiral pipe 10 is disposed inside the separation tank 1, a pressure limiting valve 6 for maintaining the synthesis gas pressure in the spiral pipe 10 and discharging the synthesis gas is disposed at an output end of the spiral pipe 10, a compressor 8 is disposed outside the separation tank 1, and it is noted that a refrigerant is disposed in the compressor 8, the compressor 8 is used for compressing the refrigerant therein, and further, the interior of the separation tank 1 is cooled by a change of the refrigerant gas and liquid, a refrigerant inlet pipe 7 is disposed at a refrigerant outlet pipe 82 is disposed at a refrigerant outlet end of the compressor 8, and the refrigerant inlet pipe 7 and the refrigerant outlet pipe 82 are respectively communicated with two ends of the separation tank 1.

Specifically, when the organic impurity gas in the synthesis gas needs to be fully separated, the synthesis gas is firstly introduced into the booster pump 3, the synthesis gas enters the spiral pipe 10, (critical pressure of carbon monoxide: 3499kPa, critical temperature: 140.2 ℃ and critical temperature of hydrogen: 234.8 ℃ and critical pressure: 1664.8kPa, and since the boiling point of carbon monoxide is higher than that of hydrogen, only the carbon monoxide is generally controlled to be not liquefied), the synthesis gas is pressurized to 3.0-3.4 Mpa by the booster pump 3, and meanwhile, the pressure of the pressure limiting valve 6 is controlled to be 3.0-3.4 Mpa, and the pressure of the booster pump 3 needs to be always larger than the pressure of the pressure limiting valve 6 to prevent the synthesis gas from being unable to be discharged from the pressure limiting valve 6.

Then the internal refrigerant is compressed into liquid by the compressor 8, the liquid refrigerant enters the separation tank 1 through the refrigerant delivery pipe 82 to gasify and absorb heat, the separation tank 1 is refrigerated, then the gas refrigerant is sucked into the compressor 8 again by the refrigerant delivery pipe 7 to be compressed into the liquid refrigerant again, the liquid refrigerant is reciprocated, the internal temperature of the separation tank 1 is maintained to be refrigerated to-130 to-120 ℃, the high-pressure synthetic gas in the spiral pipe 10 is refrigerated, most macromolecules in the synthetic gas are condensed, liquefied or solidified and precipitated, the liquid refrigerant is separated from the synthetic gas, and finally the synthetic gas with impurities separated is discharged through the pressure limiting valve 6;

at the end of the synthesis gas separation, the compressor 8 is stopped, the pressure limiting valve 6 is fully opened, the gas in the spiral pipe 10 is reduced, the temperature is increased, and the condensed impurities are gasified again and discharged, so that the inside of the device is not required to be cleaned.

In one embodiment of the present utility model, as shown in fig. 2, the spiral pipe 10 is made of a high heat conductive material, the bottom of the spiral pipe 10 is provided with an anti-blocking storage groove 101, and the anti-blocking storage groove 101 is used for collecting impurities cooled, liquefied or solidified in the spiral pipe 10, specifically, since most of macromolecules in the synthesis gas in the spiral pipe 10 are condensed, liquefied or solidified, the formed liquid flows downwards due to gravity, and the condensed impurities are collected through the anti-blocking storage groove 101, so that the spiral pipe 10 is prevented from being blocked, and the synthesis gas flows smoothly.

In one embodiment of the present utility model, as shown in fig. 1 and 2, the input end of the booster pump 3 is provided with a first filter 2, the first filter 2 is used for filtering large particles and liquid impurities in the synthesis gas, and the input end of the first filter 2 is provided with a synthesis gas inlet pipe, so that the synthesis gas is conveniently accessed.

In one embodiment of the present utility model, as shown in fig. 2, a second filter 11 is provided between the spiral pipe 10 and the pressure limiting valve 6, and the second filter 11 is provided to remove liquefied or solidified impurities floating in the spiral pipe 10.

In one embodiment of the present utility model, as shown in fig. 1, the compressor 8 is a high-pressure nitrogen compressor 8, a detachable fixing strap 81 is provided on the compressor 8, and the compressor 8 is connected with the separation tank 1 through the fixing strap 81, so that the compressor 8 is conveniently fixed.

In one embodiment of the present utility model, as shown in fig. 1 and 2, a thermometer 4 for detecting the internal temperature thereof is provided on the separation tank 1, a barometer 5 for detecting the internal air pressure thereof is provided on the spiral pipe 10 for monitoring the cooling temperature in the separation tank 1, and the air pressure in the spiral pipe 10.

In one embodiment of the utility model, as shown in fig. 2, the inner wall of the separation box 1 is provided with an insulation layer 9, and the insulation layer 9 is made of an insulation foam board and plays a role in refrigerating and insulating the inside of the separation box 1.

In one embodiment of the present utility model, as shown in fig. 1 and 2, the pressure limiting valve 6 is a pressure limiting valve 6 with an adjustable pressure limiting value, and the output end of the pressure limiting valve 6 is provided with a synthesis gas discharge pipe, which can be adjusted according to the pressure limiting requirement, so that the separated synthesis gas is conveniently discharged to a designated position by the synthesis gas discharge pipe.

In summary, according to the synthesis gas purification device provided by the embodiment of the utility model, on one hand, the liquefaction or solidification temperature value of organic matter impurities in the synthesis gas is reduced by pressurizing the synthesis gas, and furthermore, the synthesis gas is further cooled by a refrigerant, so that the impurities in the synthesis gas are liquefied or solidified, and further, the organic matter impurities are condensed, and the impurity organic matters are completely separated from the synthesis gas.

In the description of this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The utility model provides a synthetic gas purifier, includes separator box (1), its characterized in that, the top of separator box (1) is provided with booster pump (3) that are used for treating the pressurized synthetic gas, the output of booster pump (3) is provided with spiral pipe (10), spiral pipe (10) set up inside separator box (1), the output of spiral pipe (10) is provided with pressure limiting valve (6) that maintain the synthetic gas pressure in spiral pipe (10) and exhaust synthetic gas, separator box (1) outside is provided with compressor (8), compressor (8) are used for compressing its inside refrigerant, and then through refrigerant gas-liquid change to the inside refrigeration of separator box (1), the refrigerant input of compressor (8) is provided with refrigerant feed-in pipe (7), the refrigerant output of compressor (8) is provided with refrigerant delivery tube (82), refrigerant feed-in pipe (7) and refrigerant delivery tube (82) communicate with the both ends of separator box (1) respectively.

2. The synthesis gas purification device according to claim 1, wherein the spiral tube (10) is made of a high heat conduction material, an anti-blocking storage groove (101) is formed in the bottom of the spiral tube (10), and the anti-blocking storage groove (101) is used for collecting impurities cooled, liquefied or solidified in the spiral tube (10).

3. The synthesis gas purification device according to claim 1, wherein the input end of the booster pump (3) is provided with a first filter (2), the first filter (2) is used for filtering large particles and liquid impurities in the synthesis gas, and the input end of the first filter (2) is provided with a synthesis gas inlet pipe.

4. A synthesis gas purification device according to claim 1, wherein a second filter (11) is arranged between the spiral pipe (10) and the pressure limiting valve (6), the second filter (11) being arranged to filter out impurities in the spiral pipe (10) which cool to liquefy or solidify.

5. The synthesis gas purification device according to claim 1, wherein the compressor (8) is a high pressure nitrogen compressor (8), a detachable fixing belt (81) is arranged on the compressor (8), and the compressor (8) is connected with the separation tank (1) through the fixing belt (81).

6. The synthesis gas purification device according to claim 1, wherein the separation tank (1) is provided with a thermometer (4) for detecting the internal temperature thereof, and the spiral pipe (10) is provided with a barometer (5) for detecting the internal air pressure thereof.

7. The synthesis gas purification device according to claim 1, wherein an insulation layer (9) is arranged on the inner wall of the separation tank (1), and the insulation layer (9) is made of an insulation foam board.

8. The synthesis gas purification device according to claim 1, wherein the pressure limiting valve (6) is a pressure limiting valve (6) with an adjustable pressure limiting value, and an output end of the pressure limiting valve (6) is provided with a synthesis gas discharge pipe.