CN112915725A - Methanol cracking gas pressure swing adsorption device - Google Patents
Methanol cracking gas pressure swing adsorption device Download PDFInfo
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- CN112915725A CN112915725A CN202110075168.9A CN202110075168A CN112915725A CN 112915725 A CN112915725 A CN 112915725A CN 202110075168 A CN202110075168 A CN 202110075168A CN 112915725 A CN112915725 A CN 112915725A
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- reaction kettle
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- cracking reaction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
- B01D53/053—Pressure swing adsorption with storage or buffer vessel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a methanol cracking gas inlet pressure swing adsorption device which comprises a cracking reaction kettle, wherein a heater is arranged at the lower end of the cracking reaction kettle, the output end of the heater extends to the inner side position of the cracking reaction kettle, a feeding funnel is connected to one side of the top end of the cracking reaction kettle in a penetrating manner, a first air pump is fixedly connected to the other side of the top surface of the cracking reaction kettle through screws, a first air guide pipe is connected between the input end of the first air pump and the output end of the cracking reaction kettle in a penetrating manner, a pressure swing adsorption mechanism is arranged on one side of the cracking reaction kettle and comprises an adsorption barrel, a gas temporary storage tank is fixed to one side of the top surface of the adsorption barrel, a constant pressure pump is arranged on one side of the gas temporary storage tank, and a second air guide pipe. The invention has reasonable design, stable device operation, convenient and fast adjustment of adsorption pressure after methanol cracking, convenient control of high-pressure and low-pressure time and good guarantee of the purification quality of the methanol cracking gas.
Description
Technical Field
The invention relates to the technical field of methanol cracking production equipment, in particular to a methanol cracking gas pressure swing adsorption device.
Background
The pressure swing adsorption technique is a technique for purifying a gas by adsorbing an impurity component at a high pressure and desorbing the impurity component at a low pressure using an adsorbent, and is commonly used in a gas cracking reaction.
Through retrieval, the patent of application No. 201521136153.5 discloses a pressure swing adsorption nitrogen making device, which comprises an air buffer tank, an adsorption tower, a silencer and a nitrogen buffer tank; the air buffer tank, the adsorption tower and the nitrogen buffer tank are communicated in sequence; the silencer is communicated with the adsorption tower and is used for discharging oxygen in the adsorption tower.
When the device is used, the change of the adsorption pressure is unstable, the low and high pressure time during adsorption is not convenient to control, the purification quality after methanol cracking is difficult to ensure, and the use requirements of people cannot be met, so that the research on the methanol cracking gas pressure swing adsorption device is necessary.
Disclosure of Invention
The invention aims to solve the problems of labor consumption and low efficiency in the prior art, and provides a methanol cracking gas pressure swing adsorption device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a methanol cracking gas inlet pressure swing adsorption device comprises a cracking reaction kettle, wherein a heater is arranged at the lower end of the cracking reaction kettle, the output end of the heater extends to the inner side position of the cracking reaction kettle, a feeding funnel is connected at one side of the top end of the cracking reaction kettle in a penetrating manner, a first air pump is fixedly connected at the other side of the top surface of the cracking reaction kettle through screws, a first air guide pipe is connected between the input end of the first air pump and the output end of the cracking reaction kettle in a penetrating manner, a pressure swing adsorption mechanism is arranged at one side of the cracking reaction kettle and comprises an adsorption barrel, a gas temporary storage tank is fixed at one side of the top surface of the adsorption barrel, a constant pressure pump is arranged at one side of the gas temporary storage tank, a constant input end of the pressure pump and one side of the lower end of the gas temporary storage tank are connected in a penetrating manner, an air inlet pipe, the outer wall of the limiting rod is connected with a sealing plate in a sliding manner, the central position of the sealing plate is connected with a third air guide tube in a penetrating manner, a control valve is arranged on the inner wall of the third air guide tube, one side of the top surface of the sealing plate is fixedly connected with an installation rod, the bottom end of the installation rod is fixedly connected with a control switch, an installation cylinder is arranged under the installation rod, the inner bottom surface of the installation cylinder is fixedly connected with an electric telescopic rod through screws, the output end of the electric telescopic rod is fixedly connected with an installation block through screws, the top surface of the installation block is fixedly provided with a pressing block, the bottom surface of the adsorption barrel is also fixedly provided with an arc-shaped sheet, through holes are formed in the two sides of the arc-shaped sheet in a penetrating manner, a catalyst is fixedly connected with the inner wall of the through holes, one side of the bottom end of the adsorption barrel is also fixedly connected, gaseous face deposit jar and deviate from schizolysis reation kettle one side and be provided with the cask, through connection has the air duct five between two output of air pump and the cask upper end lateral wall, the cask deviates from gaseous face and deposits jar one side and still is provided with the gas holder, and the cask top surface has the booster pump through the screw rigid coupling, and through connection has the gas-supply pipe between booster pump input and the cask top surface, and through connection has the filling pipe between booster pump output and the gas holder input.
Preferably, the equal rigid coupling of schizolysis reation kettle, absorption bucket and cask downside outer wall has the supporting seat, and the supporting seat all is equipped with a plurality ofly and evenly distributed on reation kettle, absorption bucket and cask downside outer wall, the supporting seat bottom all is through the screw rigid coupling on the working face.
Preferably, the constant pressure pump is fixedly connected to the top surface of the outside of the adsorption barrel through screws.
Preferably, the limiting rod is provided with a plurality of limiting rods which are evenly distributed on the extension position of the inner wall of the adsorption bucket, and the sealing plate is in sliding contact with the inner wall of the adsorption bucket.
Preferably, a sealing ring is fixed at the joint of the limiting rod and the sealing plate.
Preferably, the arc-shaped pieces are provided with a plurality of pieces and are uniformly distributed on the inner bottom surface of the adsorption barrel.
Preferably, the installation cylinder is fixedly connected to the inner bottom surface of the adsorption barrel through a screw, the control switch is electrically connected with the control end of the second air pump, and a delay relay is further installed on a control end electric connection line of the control switch and the second air pump.
Preferably, five ends of the air duct extend to the lower side of the inner wall of the water bucket.
Preferably, a thermometer and a pressure gauge are further mounted at the lower part of the inner side of the perspective window.
Compared with the prior art, the invention provides a methanol pyrolysis gas pressure swing adsorption device, which has the following beneficial effects:
1. the invention has reasonable design, stable device operation, convenient adjustment of adsorption pressure after methanol cracking, convenient control of high-pressure and low-pressure time and good guarantee of the purification quality of the methanol cracking gas;
2. when the pressure-adjustable adsorption device is used, the pressure at the lower side of the adsorption barrel can be adjusted through the constant-pressure pump, the pressure of the device is stable, the air tightness is good, and the adsorption time is controlled by adopting a time delay relay, so that the adsorption operation can be conveniently completed by gas with constant time and constant pressure, and the quality of gas inlet pressure-variable adsorption is well ensured;
3. according to the invention, the adsorption catalyst is fixed on the arc-shaped sheets arranged in a three-dimensional row, so that the gas is fully contacted with the adsorption catalyst, and the residual gas is further removed after the adsorbed methanol cracking gas is subjected to water treatment, so that the purification precision of the methanol cracking gas is well ensured;
4. the invention adopts the methanol cracking gas to realize pressurization during the adsorption, and well avoids other miscellaneous gases from mixing into the methanol cracking gas, thereby ensuring the quality of gas purification to a certain extent.
Drawings
FIG. 1 is a schematic structural diagram of a methanol cracking gas pressure swing adsorption apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a pressure swing adsorption mechanism in a pressure swing adsorption apparatus for methanol cracked gas according to the present invention;
FIG. 3 is a front sectional view of an adsorption drum of a methanol pyrolysis gas inlet pressure swing adsorption apparatus according to the present invention;
FIG. 4 is a schematic structural diagram of an arc-shaped plate in a pressure swing adsorption apparatus for methanol pyrolysis gas.
In the figure: the cracking reaction kettle comprises a cracking reaction kettle 1, a heater 2, a feeding funnel 3, a first air pump 4, a first air guide pipe 5, a pressure swing adsorption mechanism 6, a fourth air guide pipe 7, a water bucket 8, a fifth air guide pipe 9, an air storage tank 10, a booster pump 11, an air conveying pipe 12, a filling pipe 13, an adsorption bucket 601, a temporary gas storage tank 602, a constant pressure pump 603, a second air guide pipe 604, an air inlet pipe 605, a limiting rod 606, a sealing plate 607, a third air guide pipe 608, a control valve 609, an installation rod 610, a control switch 611, an installation cylinder 612, an electric telescopic rod 613, an installation block 614, a pressing block 615, an arc-shaped sheet 616, a catalyst 617, an installation frame 618, a second.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and 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.
Example one
Referring to fig. 1-4, a methanol cracking gas inlet pressure swing adsorption device comprises a cracking reaction kettle 1, a heater 2 is arranged at the lower end of the cracking reaction kettle 1, the output end of the heater 2 extends to the inner side of the cracking reaction kettle 1, a feeding funnel 3 is connected at one side of the top end of the cracking reaction kettle 1 in a penetrating way, a first air pump 4 is fixedly connected at the other side of the top surface of the cracking reaction kettle 1 through screws, a first air duct 5 is connected between the input end of the first air pump 4 and the output end of the cracking reaction kettle 1 in a penetrating way, a pressure swing adsorption mechanism 6 is arranged at one side of the cracking reaction kettle 1, the pressure swing adsorption mechanism 6 comprises an adsorption bucket 601, a gas temporary storage tank 602 is fixed at one side of the top surface of the adsorption bucket 601, a constant pressure pump 603 is arranged at one side of the gas temporary storage tank 602, a second air duct 604 is connected at the input end of the, a limiting rod 606 is further fixed between the inner walls of the upper end and the lower end of the adsorption bucket 601, a sealing plate 607 is slidably connected to the outer wall of the limiting rod 606, a third air duct 608 is penetratingly connected to the central position of the sealing plate 607, a control valve 609 is mounted on the inner wall of the third air duct 608, a mounting rod 610 is further fixedly connected to one side of the top surface of the sealing plate 607, a control switch 611 is fixedly connected to the bottom end of the mounting rod 610, a mounting cylinder 612 is further arranged on the lower side of the mounting rod 610, an electric telescopic rod 613 is fixedly connected to the inner bottom surface of the mounting cylinder 612 through screws, a mounting block 614 is fixedly connected to the output end of the electric telescopic rod 613 through screws, a pressing block 615 is fixed to the top surface of the mounting block 614, an arc sheet 616 is further fixed to the bottom surface of the adsorption bucket 601, through holes are formed in the two sides of the arc sheet 616, a catalyst, the terminal surface still is provided with perspective window 621 before adsorption bucket 601, it has four 7 air ducts to go back the rigid coupling between jar 602 input and the 4 output of air pump that gaseous faces to deposit jar 602 one side of deviating from the decomposition reation kettle 1 and is provided with cask 8, through connection has five 9 air ducts between two 619 output of air pump and the 8 upper end lateral walls of cask, cask 8 deviates from gaseous face to deposit jar 602 one side and still is provided with gas holder 10, 8 top surfaces of cask have booster pump 11 through the screw rigid coupling, through connection has gas-supply pipe 12 between 11 input of booster pump and the 8 top surfaces of cask, through connection has filling pipe 13 between 11 output of booster pump and the 10 input of.
When the device is used, firstly reactants are put into a cracking reaction kettle 1, the cracking of methanol is realized under the assistance of a heater, cracked gas is sucked into an adsorption barrel 601 through a first air pump 4, part of the gas is input to the lower side position of a sealing plate 607 through a third air duct 608, then a control valve 609 is closed, the pressure output by a constant pressure pump 603 is adjusted according to the pressure requirement, a pressing block 615 is driven to move upwards through an electric telescopic rod 613 after the adjustment to touch a control switch 611, a time delay relay starts timing, when the time reaches a set value, a second air pump 619 starts to work to pump out the gas, and then the adsorption operation of the part of the gas is performed.
Example two
As shown in fig. 1 and 2, in this embodiment, basically the same as in embodiment 1, preferably, the outer walls of the lower sides of the cracking reactor 1, the adsorption bucket 601 and the water bucket 8 are all fixedly connected with a support seat 14, and the support seats 14 are all provided with a plurality of support seats and uniformly distributed on the outer walls of the lower sides of the cracking reactor 1, the adsorption bucket 601 and the water bucket 8, and the bottom ends of the support seats 14 are all fixedly connected to the working surface through screws.
In this embodiment, reation kettle 1, adsorb bucket 601 and cask 8 downside all fixes on the working face through a plurality of supporting seats 14 to it is more stable to make reation kettle 1, adsorb bucket 601 and cask 8 during operation.
EXAMPLE III
As shown in fig. 1 and 2, this embodiment is substantially the same as embodiment 1, and preferably, the constant pressure pump 603 is fixed to the outer top surface of the adsorption bucket 601 by screws.
In this embodiment, the constant pressure pump 603 is fixedly connected to the outer top surface of the adsorption barrel 601 through screws, so that the constant pressure pump 603 can be assembled and disassembled more conveniently.
Example four
As shown in fig. 3, in this embodiment, basically the same as that in embodiment 1, preferably, a plurality of limiting rods 606 are provided and uniformly distributed at the extended positions of the inner wall of the adsorption bucket 601, the sealing plate 607 is connected with the inner wall of the adsorption bucket 601 in a sliding contact manner, and sealing rings are fixed at the joints of the limiting rods 606 and the sealing plate 607.
In this embodiment, the limiting rod 606 is provided with a plurality of and evenly distributed at the extension position of the inner wall of the adsorption barrel 601, so that the sealing plate 607 moves down more stably.
EXAMPLE five
As shown in fig. 3 and 4, this embodiment is substantially the same as embodiment 1, and preferably, the arc-shaped pieces 616 are provided in a plurality of pieces and uniformly distributed on the inner bottom surface of the adsorption bucket 601.
In this embodiment, the arc-shaped pieces 616 are uniformly distributed on the bottom surface in the adsorption barrel 601, so that the gas is fully contacted with the catalyst, and the quality of methanol purification is well ensured.
EXAMPLE six
As shown in fig. 2 and 3, in this embodiment, basically the same as that in embodiment 1, preferably, the mounting cylinder 612 is fixedly connected to the inner bottom surface of the adsorption bucket 601 by screws, the control switch 611 is electrically connected to the control end of the air pump 619, and a delay relay is further installed on an electrical connection line between the control switch 611 and the control end of the air pump 619.
In this embodiment, a delay relay is further installed on the control switch 611 and the control end electrical connection line of the second air pump 619, so that the methanol cracking adsorption time can be conveniently controlled, and the quality of gas purification can be further ensured.
EXAMPLE seven
As shown in fig. 2 and 3, this embodiment is substantially the same as embodiment 1, and preferably, one end of the air duct five 9 extends to a position on the lower side of the inner wall of the water tub 8.
A thermometer and a pressure gauge are further installed at the lower part of the inner side of the transparent window 621.
In this embodiment, a thermometer and a pressure gauge are further installed at the lower portion of the inner side of the transparent window 621, so that the real-time temperature and pressure at the lower end of the adsorption barrel 601 can be monitored.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. The methanol cracking gas inlet pressure swing adsorption device comprises a cracking reaction kettle (1), and is characterized in that a heater (2) is arranged at the lower end of the cracking reaction kettle (1), the output end of the heater (2) extends to the inner side of the cracking reaction kettle (1), one side of the top end of the cracking reaction kettle (1) is connected with a feeding funnel (3) in a penetrating manner, the other side of the top surface of the cracking reaction kettle (1) is fixedly connected with a first air pump (4) through a screw, a first air guide pipe (5) is connected between the input end of the first air pump (4) and the output end of the cracking reaction kettle (1) in a penetrating manner, and a pressure swing adsorption mechanism (6) is arranged on one side of the cracking reaction kettle (;
the pressure swing adsorption mechanism (6) comprises an adsorption barrel (601), a gas temporary storage tank (602) is fixed on one side of the top surface of the adsorption barrel (601), a constant pressure pump (603) is arranged on one side of the gas temporary storage tank (602), the input end of the constant pressure pump (603) and one side of the lower end of the gas temporary storage tank (602) are connected with a second air duct (604) in a penetrating way, an air inlet pipe (605) is connected between the output end of the constant pressure pump (603) and the top surface of the adsorption barrel (601) in a penetrating way, a limiting rod (606) is further fixed between the inner walls of the upper end and the lower end of the adsorption barrel (601), a sealing plate (607) is connected with the outer wall of the limiting rod (606) in a sliding way, a third air duct (608) is connected with the central position of the sealing plate (607) in a penetrating way, a control valve (609) is installed, ) The adsorption device is characterized in that an installation barrel (612) is further arranged on the right lower side of the installation rod (610), an electric telescopic rod (613) is fixedly connected to the inner bottom surface of the installation barrel (612) through screws, an installation block (614) is fixedly connected to the output end of the electric telescopic rod (613) through screws, a pressing block (615) is fixedly connected to the top surface of the installation block (614), an arc-shaped sheet (616) is further fixedly connected to the bottom surface of the adsorption barrel (601), through holes are formed in two sides of the arc-shaped sheet (616) in a penetrating mode, a catalyst (617) is fixedly connected to the inner wall of each through hole, a mounting frame (618) is further fixedly connected to one side of the bottom end of the adsorption barrel (601), a second air pump (619) is fixedly connected to the top surface of the mounting frame (618) through screws, an; 1)
gas faces and deposits jar (602) input and air pump (4) and go back the rigid coupling between the output and have the air duct four (7), and gas faces and deposits jar (602) and deviates from schizolysis reation kettle (1) one side and be provided with cask (8), and through connection has five (9) of air duct between two (619) output of air pump and cask (8) the upper end lateral wall, cask (8) deviate from gas and face and deposit jar (602) one side and still be provided with gas holder (10), and cask (8) top surface has booster pump (11) through the screw rigid coupling, and through connection has gas-supply pipe (12) between booster pump (11) input and cask (8) top surface, and through connection has filling tube (13) between booster pump (11) output and gas holder.
2. The methanol cracking gas pressure swing adsorption device of claim 1, wherein the outer walls of the lower sides of the cracking reaction kettle (1), the adsorption bucket (601) and the water bucket (8) are all fixedly connected with a support seat (14), the support seats (14) are all provided with a plurality of support seats and evenly distributed on the outer walls of the lower sides of the cracking reaction kettle (1), the adsorption bucket (601) and the water bucket (8), and the bottom ends of the support seats (14) are all fixedly connected to a working surface through screws.
3. The methanol cracked gas inlet pressure swing adsorption device of claim 1, wherein the constant pressure pump (603) is fixedly connected to the outer top surface of the adsorption barrel (601) through screws.
4. The methanol pyrolysis gas pressure swing adsorption device of claim 1, wherein the limiting rod (606) is provided with a plurality of limiting rods and evenly distributed at the extension positions of the inner wall of the adsorption barrel (601), and the sealing plate (607) is in sliding contact connection with the inner wall of the adsorption barrel (601).
5. The methanol cracked gas inlet pressure swing adsorption device of claim 1, wherein a sealing ring is fixed at the joint of the limiting rod (606) and the sealing plate (607).
6. The methanol cracking gas pressure swing adsorption unit of claim 1, wherein the arc-shaped pieces (616) are provided with a plurality of pieces and are uniformly distributed on the inner bottom surface of the adsorption barrel (601).
7. The methanol cracking gas pressure swing adsorption device of claim 1, wherein the installation cylinder (612) is fixedly connected to the inner bottom surface of the adsorption barrel (601) through screws, the control switch (611) is electrically connected with the control end of the air pump II (619), and a delay relay is further installed on an electrical connection line of the control switch (611) and the control end of the air pump II (619).
8. The methanol cracking gas pressure swing adsorption device of claim 1, wherein one end of the gas guide pipe five (9) extends to the lower side position of the inner wall of the water barrel (8).
9. The methanol cracking gas pressure swing adsorption apparatus of claim 1, wherein a thermometer and a pressure gauge are further installed at the lower part of the inner side of the transparent window (621).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110075168.9A CN112915725A (en) | 2021-01-20 | 2021-01-20 | Methanol cracking gas pressure swing adsorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110075168.9A CN112915725A (en) | 2021-01-20 | 2021-01-20 | Methanol cracking gas pressure swing adsorption device |
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| CN112915725A true CN112915725A (en) | 2021-06-08 |
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| CN202110075168.9A Withdrawn CN112915725A (en) | 2021-01-20 | 2021-01-20 | Methanol cracking gas pressure swing adsorption device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976044A (en) * | 2021-10-27 | 2022-01-28 | 深圳市沃尔奔达新能源股份有限公司 | Methanol hydrogen production power generation system |
-
2021
- 2021-01-20 CN CN202110075168.9A patent/CN112915725A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976044A (en) * | 2021-10-27 | 2022-01-28 | 深圳市沃尔奔达新能源股份有限公司 | Methanol hydrogen production power generation system |
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Application publication date: 20210608 |