CN114367178A - Realization of NO2Converted filter element material, preparation method thereof and filter element device comprising same - Google Patents

Realization of NO2Converted filter element material, preparation method thereof and filter element device comprising same Download PDF

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Publication number
CN114367178A
CN114367178A CN202011502862.6A CN202011502862A CN114367178A CN 114367178 A CN114367178 A CN 114367178A CN 202011502862 A CN202011502862 A CN 202011502862A CN 114367178 A CN114367178 A CN 114367178A
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CN
China
Prior art keywords
baffling
chamber
filter element
barrel
vitamin
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CN202011502862.6A
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Chinese (zh)
Inventor
赵杨波
吴清
陆秋仙
曹贵平
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Nanjing Nuoling Biotechnology Co ltd
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Nanjing Nuoling Biotechnology Co ltd
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Application filed by Nanjing Nuoling Biotechnology Co ltd filed Critical Nanjing Nuoling Biotechnology Co ltd
Priority to CN202011502862.6A priority Critical patent/CN114367178A/en
Priority to CA3201125A priority patent/CA3201125A1/en
Priority to IL303679A priority patent/IL303679A/en
Priority to EP21844628.4A priority patent/EP4244406A1/en
Priority to CN202311032508.5A priority patent/CN117802515A/en
Priority to CN202311033027.6A priority patent/CN117568825A/en
Priority to AU2021401099A priority patent/AU2021401099A1/en
Priority to CN202180027930.4A priority patent/CN115398036B/en
Priority to CN202311031041.2A priority patent/CN117070962A/en
Priority to KR1020237024202A priority patent/KR20230121851A/en
Priority to JP2023537262A priority patent/JP2023554469A/en
Priority to PCT/CN2021/139117 priority patent/WO2022127902A1/en
Priority to US18/043,900 priority patent/US20230313399A1/en
Publication of CN114367178A publication Critical patent/CN114367178A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/56Nitrogen oxides
    • B01D53/565Nitrogen oxides by treating the gases with solids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81Solid phase processes
    • B01D53/82Solid phase processes with stationary reactants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/20Reductants
    • B01D2251/21Organic compounds not provided for in groups B01D2251/206 or B01D2251/208

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention provides a method for realizing NO2The converted filter element material comprises a carrier and reductive vitamins coated on the surface of the carrier, a preparation method thereof and a filter element device comprising the same. The filter element device comprises a cylinder body and sealing covers positioned at two ends of the cylinder body; the barrel internal partitioning for two at least baffling chambeies, the baffling chamber link up along the barrel axial the barrel, the baffling intracavity fill filter core material, the top or the bottom of two adjacent baffling chambeies communicate with each other, gas gets into and is snakelike baffling and flows through in proper order in the barrel baffling chamber. The invention provides a method for converting NO2The filter element material of (1) uses reductive vitamins to convert NO2Reduction to NO to thereby effect NO2The zero generation and the effective utilization of the filter element can increase the concentration of NO and improve the NO output range of the equipment provided with the filter element.

Description

Realization of NO2Converted filter element material, preparation method thereof and filter element device comprising same
Technical Field
The invention belongs to the technical field of gas conversion, and relates to a method for realizing NO2Converted filter element material, its preparationA method and a filter element device comprising the same.
Background
The nitrogen oxides are compounds composed of two elements of nitrogen and oxygen, and include nitrogen monoxide, nitrogen dioxide, nitrous oxide, dinitrogen tetroxide and the like, and the nitrogen oxides are mainly nitrogen monoxide and nitrogen dioxide. Nitric oxide is a colorless, non-irritating odor gas that can be oxidized to nitrogen dioxide, which is a reddish-brown gas with an irritating odor. Nitrogen oxides can irritate the lungs, making it more difficult for people to resist respiratory diseases. Research shows that exogenous low-concentration NO gas can be inhaled to selectively expand pulmonary artery, reduce pulmonary artery high pressure and improve oxygenation, and can effectively treat neonatal pulmonary artery high pressure, acute respiratory distress syndrome, pulmonary edema and the like. However, NO is very easily oxidized to NO2The latter can cause severe pulmonary edema, acidic pneumonia and even death.
Common in the existing methods is that NO is reacted2The NO is converted by adopting a chemical method, other easily-consumed substances are required to be introduced in the conversion process, the maintenance cost is high, and the equipment is difficult to stably operate for a long time.
CN206121514U discloses a NO2Turn into NO's device, including conversion furnace body, heating rod, catalytic oxidation device, temperature-detecting device, microprocessor and vent line, catalytic oxidation device locates in the conversion furnace body, the heating rod is located in the conversion furnace body, the heating rod is arranged in catalytic oxidation device's below, one vent line's one end is connected catalytic oxidation device's air inlet, one vent line's one end is connected catalytic oxidation device's gas outlet, temperature-detecting device locates in the conversion furnace body, temperature-detecting device's output is connected microprocessor's input, connect for the output of treater the control end of heating rod.
CN1720443B discloses a method for reducing NO in a gas sample2Photolytic NO conversion to NO2Converter comprising a body with a diffusely reflective reaction chamber having at least one aperture, located within the body, the reaction chamber having a high heightReflective, the reaction chamber comprising a diffuse reflective material; a reaction chamber inlet coupled to the reaction chamber for introducing a gas sample into the reaction chamber; a reaction chamber outlet connected to the reaction chamber for discharging a treated gas sample from the reaction chamber; and at least one LED capable of generating UV radiation in the range of 350 to 420nm, said LED being positioned adjacent to said at least one aperture such that UV radiation from said at least one LED can enter said reaction chamber through said at least one aperture for the purpose of coupling NO present in a gas sample introduced into said reaction chamber through said reaction chamber inlet2Converted to NO and a treated gas sample comprising NO is discharged from the reaction chamber through the reaction chamber outlet.
NO presently available2The conversion equipment has high production cost, high operation difficulty and long treatment period, so that a novel NO needs to be redesigned2And a conversion device.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for realizing NO2The invention provides a converted filter element material, a preparation method thereof and a filter element device comprising the same, and provides a method for converting NO2The filter element material of (1) uses reductive vitamins to convert NO2Reduction to NO to thereby effect NO2The zero generation and the effective utilization of the filter element can increase the concentration of NO and improve the NO output range of the equipment provided with the filter element. The cost of the reducing vitamin is low, the treatment process is non-toxic and harmless, complex treatment operation and severe treatment conditions are not needed, and the process is non-toxic and harmless, green and environment-friendly.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for effecting NO2The converted filter element material comprises a carrier and reducing vitamins coated on the surface of the carrier.
The invention provides a method for converting NO2The filter element material of (1) uses reductive vitamins to convert NO2Reduction to NO to thereby effect NO2Zero generation and efficient utilization of, and also increased NOConcentration, the NO output range of the device equipped with the filter element is increased. The cost of the reducing vitamin is low, the treatment process is non-toxic and harmless, complex treatment operation and severe treatment conditions are not needed, and the process is non-toxic and harmless, green and environment-friendly. As a preferable technical scheme of the invention, the carrier comprises one or a combination of at least two of aluminum silica gel, molecular sieve, alumina, sponge, cotton or foaming resin.
Preferably, the reducing vitamin comprises one or a combination of at least two of vitamin C, vitamin E or vitamin a.
Preferably, the carrier is coated with 5-50 g of reducing vitamin per 100g of carrier, such as 5g, 10g, 15g, 20g, 25g, 30g, 35g, 40g, 45g or 50g, but not limited to the recited values, and other values not recited in the range are also applicable.
In a second aspect, the present invention provides a method of effecting NO as described in the first aspect2A method of making a converted filter element material, said method comprising:
and adding a carrier into the aqueous solution of the reducing vitamin, uniformly stirring and drying to obtain the filter element.
As a preferred technical scheme of the present invention, the preparation method specifically comprises:
preparing 5-50 g of reducing vitamin into an aqueous solution of the reducing vitamin, adding 100g of carrier into a saturated aqueous solution of the reducing vitamin, uniformly stirring, and drying to obtain the filter element, wherein the amount of the carrier can be, for example, 5g, 10g, 15g, 20g, 25g, 30g, 35g, 40g, 45g or 50g, but the filter element is not limited to the enumerated values, and other unrecited values in the numerical range are also applicable.
Preferably, the reducing vitamin comprises one or a combination of at least two of vitamin C, vitamin E or vitamin a.
Preferably, the carrier comprises one or a combination of at least two of aluminum silica gel, molecular sieve, alumina, sponge, cotton or foaming resin.
Preferably, the drying temperature is 40 to 150 ℃, for example, 40 ℃, 50 ℃, 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃, 110 ℃, 120 ℃, 130 ℃, 140 ℃ or 150 ℃, but not limited to the recited values, and other values not recited in the range of the values are also applicable.
Preferably, the drying time is 0.2 to 10 hours, for example, 0.2 hour, 0.5 hour, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 7 hours, 8 hours, 9 hours or 10 hours, but is not limited to the recited values, and other values not recited in the range of the values are also applicable.
In a third aspect, the present invention provides a method for effecting NO2The converted filter element device comprises a cylinder body and sealing covers positioned at two ends of the cylinder body.
The cylinder internal partitioning for two at least baffling chambeies, the baffling chamber link up along the cylinder axial the cylinder, the baffling intracavity fill the first aspect the filter core material, the top or the bottom of two adjacent baffling chambeies communicate with each other, gas gets into and is snakelike baffling and flows through in proper order in the cylinder baffling chamber.
The invention provides a filter element device matched with filter element materials for use, which is characterized in that a plurality of layers of baffling cavities are arranged to enable smoke to be in snakelike baffling in a cylinder body, so that NO is increased2The contact time and the contact area of the gas and the filter element material reduce the occupied area of the equipment.
As a preferable technical scheme of the invention, a filter membrane is arranged between the sealing cover and the cylinder body.
Preferably, a filter membrane fixing part is arranged between the sealing cover and the barrel body, and the filter membrane fixing part is used for fixing the filter membrane between the sealing cover and the barrel body.
Preferably, the filter membrane fixing part is detachably connected with the sealing cover and the barrel body respectively.
Preferably, the filter membrane fixing piece is respectively connected with the sealing cover and the barrel body through threads.
As a preferable technical scheme of the invention, a circumferential partition plate group is arranged in the cylinder, and the circumferential partition plate group divides the interior of the cylinder into at least two baffling cavities.
Preferably, the circumferential partition plate group comprises at least two partition plates which are radially distributed in the circumferential direction, the partition plates penetrate through the cylinder body, and a baffling cavity is formed between every two adjacent partition plates.
Preferably, the long edge of one side of the partition board is butted and converged at the axis of the cylinder body, and the other opposite long edge is tightly attached to the inner wall of the cylinder body along the circumferential direction of the cylinder body.
Preferably, the central angles formed between adjacent partition plates are equal, and the circumferential partition plate group divides the interior of the cylinder into at least two identical baffling cavities.
As a preferable technical scheme of the invention, one end of two ends of two adjacent baffling cavities close to the air inlet is marked as a near end, and the end far away from the air inlet is marked as a far end.
Along gaseous snakelike baffling direction, the distal end intercommunication in first baffling chamber and second baffling chamber, the proximal end intercommunication in second baffling chamber and third baffling chamber, gaseous gets into first baffling chamber by the air inlet, gets into second baffling chamber through the distal end baffling, gets into third baffling chamber by the proximal end baffling in second baffling chamber to analogize in this, thereby the baffling chamber sets gradually according to the mode that near distal end and proximal end communicate in turn and forms snakelike gas passage, and last baffling chamber is adjacent with first baffling chamber and cuts off completely between the chamber with first baffling, and gaseous flow is discharged by the gas outlet after last baffling chamber of flowing through.
As a preferable technical solution of the present invention, a circumferential partition plate group composed of an even number of partitions is axially arranged inside the cylinder, and the circumferential partition plate group partitions the inside of the cylinder into an even number of baffle chambers.
Preferably, the barrel internal partitioning is odd number baffling chamber, the air inlet has been seted up on the closing cap of barrel one end, the gas outlet has been seted up on the other end closing cap of barrel, along gaseous snakelike baffling direction, the air inlet correspond first baffling chamber, the gas outlet correspond last baffling chamber, gaseous gets into first baffling chamber by barrel one end, flows through behind each baffling chamber in proper order along snakelike baffling and discharges by the barrel other end through last baffling chamber.
As a preferable technical solution of the present invention, a circumferential partition plate group composed of odd number of partitions is axially arranged in the cylinder, and the circumferential partition plate group partitions the inside of the cylinder into odd number of baffle chambers.
Preferably, the interior of the cylinder is divided into an even number of baffling cavities, a sealing cover at one end of the cylinder is simultaneously provided with an air inlet and an air outlet, the air inlet corresponds to the first baffling cavity and the air outlet corresponds to the last baffling cavity along the snakelike baffling direction of air, the air enters the first baffling cavity from one end of the cylinder and sequentially flows through the baffling cavities along the snakelike baffling direction and then is discharged from the same end of the cylinder through the last baffling cavity.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a method for converting NO2The filter element material of (1) uses reductive vitamins to convert NO2Reduction to NO to thereby effect NO2The zero generation and the effective utilization of the filter element can increase the concentration of NO and improve the NO output range of the equipment provided with the filter element. The cost of the reducing vitamin is low, the treatment process is non-toxic and harmless, complex treatment operation and severe treatment conditions are not needed, and the process is non-toxic and harmless, green and environment-friendly.
Drawings
Fig. 1 is a schematic structural diagram of a filter cartridge device provided in embodiment 1 of the present invention.
Wherein, 1-sealing cover; 2-a filter membrane; 3-fixing a filter membrane; 4-cylinder body.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in 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 taken as limiting the present invention. Furthermore, the terms "first", "second", etc. 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 defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example 1
This example provides a method for realizing NO2A method of making a converted filter element material, said method comprising:
dissolving 5g of vitamin C in 100g of water to prepare a vitamin C aqueous solution, adding 100g of aluminum silica gel into the vitamin C saturated aqueous solution, uniformly stirring the aluminum silica gel particles with the diameter of 0.2mm, and drying the aluminum silica gel particles at 100 ℃ for 0.5h to obtain the filter element.
This example also provides a method for realizing NO2The filter element device of conversion, the filter element device as shown in figure 1, including vertical barrel 4 of arranging and the closing cap 1 that is located barrel 4 both ends, be provided with circumference baffle group in the barrel 4, circumference baffle group includes three baffle that is radial distribution in circumference, the long limit butt joint of one side of three baffle and intersection in barrel 4 axis department, barrel 4 inner wall is hugged closely along barrel 4 circumference to another relative long border, the central angle that forms between the adjacent baffle equals, circumference baffle group is with barrel 4The internal partition is the three baffling chambeies that are the exact same, marks as first baffling chamber, second baffling chamber and third baffling chamber in proper order along the gas flow direction, fills the filter core material that this embodiment preparation obtained into three baffling intracavity.
An air inlet is formed in the sealing cover 1 at the bottom of the cylinder body 4, an air outlet is formed in the sealing cover 1 at the top of the cylinder body 4, smoke enters from bottom to top, the air inlet corresponds to the first baffling cavity, and the air outlet corresponds to the third baffling cavity. The top of the first baffling chamber is communicated with the top of the second baffling chamber, the bottom of the second baffling chamber is communicated with the bottom of the third baffling chamber, the third baffling chamber is completely isolated from the first baffling chamber, gas enters the first baffling chamber from a gas inlet at the bottom, flows through the second baffling chamber and the third baffling chamber in sequence along a snake shape, and is discharged from a gas outlet at the top of the third baffling chamber after being converted into NO through contact reaction with filter core materials.
A filter membrane 2 is arranged between the seal cover 1 and the cylinder body 4, a filter membrane fixing piece 3 is arranged between the seal cover 1 and the cylinder body 4, the filter membrane fixing piece 3 is used for fixing the filter membrane 2 between the seal cover 1 and the cylinder body 4, and the filter membrane fixing piece 3 is respectively in threaded connection with the seal cover 1 and the cylinder body 4.
The filter element device provided by the embodiment is adopted to process 100ppmNO at 1.0L/min2The gas flow is treated and continuously operated for 90 hours, NO2Total conversion to NO was 100%.
Example 2
This example provides a method for realizing NO2A method of making a converted filter element material, said method comprising:
preparing 15g of vitamin E into a saturated aqueous solution of the vitamin E, adding 100g of silica gel into the saturated aqueous solution of the vitamin E, uniformly stirring the silica gel particles with the diameter of 3mm, and drying the silica gel particles at 50 ℃ for 5 hours to obtain the filter element.
This example also provides a method for realizing NO2The filter element device comprises a vertically arranged cylinder body 4 and sealing covers 1 positioned at two ends of the cylinder body 4, wherein a circumferential partition plate group is arranged in the cylinder body 4 and comprises three partition plates which are distributed radially in the circumferential direction, and long edges on one side of each partition plate are opposite to long edges on one side of each partition plateConnect and meet in barrel 4 axis department, the 4 inner walls of barrel are hugged closely along barrel 4 circumference to another relative long edge, and the central angle that forms between the adjacent baffle is equal, and the circumference baffle group is divided barrel 4 inside into the three baffling chambeies that are the same completely, marks as first baffling chamber, second baffling chamber and third baffling chamber in proper order along the gas flow direction, fills the filter core material that this embodiment prepared into in three baffling intracavity.
An air inlet is formed in the sealing cover 1 at the top of the cylinder body 4, an air outlet is formed in the sealing cover 1 at the bottom of the cylinder body 4, smoke enters from top to bottom, the air inlet corresponds to the first baffling cavity, and the air outlet corresponds to the third baffling cavity. The bottom of the first baffling chamber is communicated with the bottom of the second baffling chamber, the top of the second baffling chamber is communicated with the top of the third baffling chamber, the third baffling chamber is completely isolated from the first baffling chamber, gas enters the first baffling chamber from a gas inlet at the top, flows through the second baffling chamber and the third baffling chamber in sequence along a snake shape, and is discharged from a gas outlet at the bottom of the third baffling chamber after being converted into NO through contact reaction with filter core materials.
A filter membrane 2 is arranged between the seal cover 1 and the cylinder body 4, a filter membrane fixing piece 3 is arranged between the seal cover 1 and the cylinder body 4, the filter membrane fixing piece 3 is used for fixing the filter membrane 2 between the seal cover 1 and the cylinder body 4, and the filter membrane fixing piece 3 is respectively in threaded connection with the seal cover 1 and the cylinder body 4.
The filter element device provided by the embodiment is adopted to process 500ppmNO at 4.0L/min2The gas flow is treated and continuously operated for 5h, NO2Total conversion to NO was 100%.
Example 3
This example provides a method for realizing NO2A method of making a converted filter element material, said method comprising:
preparing 25g of vitamin A into a saturated aqueous solution of the vitamin A, adding 100g of molecular sieve into the saturated aqueous solution of the vitamin A, uniformly stirring the molecular sieve particles with the diameter of 5mm, and drying the molecular sieve particles at 80 ℃ for 2h to obtain the filter element.
This example also provides a method for realizing NO2A convertible cartridge assembly comprising a vertically disposed housing 4 andlie in closing cap 1 at barrel 4 both ends, be provided with circumference baffle group in the barrel 4, circumference baffle group includes four baffles that are radial distribution in circumference, the long limit butt joint in 4 axes of barrel department of one side of four baffles and intersection, 4 inner walls of barrel are hugged closely along 4 circumference of barrel to another relative length, the central angle that forms between the adjacent baffle equals, circumference baffle group is with 4 internal partitioning of barrel for four baffling chambeies that are the same completely, record into first baffling chamber in proper order along the gas flow direction, the second baffling chamber, third baffling chamber and fourth baffling chamber, pack into the filter core material that this embodiment prepared and obtained to four baffling intracavity.
An air inlet and an air outlet are simultaneously formed in the sealing cover 1 at the bottom of the barrel 4, smoke enters and exits from the lower portion, the air inlet corresponds to the first baffling cavity, and the air outlet corresponds to the fourth baffling cavity. The top in first baffling chamber and the top in second baffling chamber communicate, the bottom in second baffling chamber and the bottom in third baffling chamber communicate, the top in third baffling chamber and the top in fourth baffling chamber communicate, cut off completely between fourth baffling chamber and the first baffling chamber, gas gets into first baffling chamber by the air inlet of bottom, flows through second baffling chamber, third baffling chamber and fourth baffling chamber in proper order along snakelike, turn into the gas vent through the bottom by fourth baffling chamber after NO with filter core material contact reaction.
A filter membrane 2 is arranged between the seal cover 1 and the cylinder body 4, a filter membrane fixing piece 3 is arranged between the seal cover 1 and the cylinder body 4, the filter membrane fixing piece 3 is used for fixing the filter membrane 2 between the seal cover 1 and the cylinder body 4, and the filter membrane fixing piece 3 is respectively in threaded connection with the seal cover 1 and the cylinder body 4.
The filter element device provided by the embodiment is adopted to process 2.0L/min 200ppmNO2The gas flow is treated and continuously operated for 70h, NO2Total conversion to NO was 100%.
Example 4
This example provides a method for realizing NO2A method of making a converted filter element material, said method comprising:
preparing 35g of vitamin C into a saturated aqueous solution of the vitamin C, adding 100g of alumina into the saturated aqueous solution of the vitamin C, wherein the diameter of alumina particles is 6mm, uniformly stirring, and drying at 120 ℃ for 0.25h to obtain the filter element.
This example also provides a method for realizing NO2The filter core device of conversion, the filter core device include vertical barrel 4 of arranging and be located the closing cap 1 at barrel 4 both ends, be provided with circumference baffle group in the barrel 4, circumference baffle group includes four baffles that are radial distribution in circumference, the long limit butt joint in one side of four baffles intersects in barrel 4 axis department, barrel 4 inner wall is hugged closely along barrel 4 circumference to another relative length, the central angle that forms between the adjacent baffle equals, circumference baffle group is 4 internal partitioning for the barrel four identical baffling chambeies, follow the gas flow direction and mark in proper order into first baffling chamber, second baffling chamber, third baffling chamber and fourth baffling chamber, pack into the filter core material that this embodiment prepared to four baffling intracavity.
An air inlet and an air outlet are simultaneously formed in the sealing cover 1 at the top of the barrel 4, smoke goes up and out, the air inlet corresponds to the first baffling cavity, and the air outlet corresponds to the fourth baffling cavity. The bottom in first baffling chamber and the bottom in second baffling chamber communicate, the top in second baffling chamber and the top in third baffling chamber communicate, the bottom in third baffling chamber and the bottom in fourth baffling chamber communicate, cut off completely between fourth baffling chamber and the first baffling chamber, gas gets into first baffling chamber by the air inlet at top, flows through second baffling chamber, third baffling chamber and fourth baffling chamber in proper order along snakelike, turn into the gas vent through the top by fourth baffling chamber after NO with filter core material contact reaction.
A filter membrane 2 is arranged between the seal cover 1 and the cylinder body 4, a filter membrane fixing piece 3 is arranged between the seal cover 1 and the cylinder body 4, the filter membrane fixing piece 3 is used for fixing the filter membrane 2 between the seal cover 1 and the cylinder body 4, and the filter membrane fixing piece 3 is respectively in threaded connection with the seal cover 1 and the cylinder body 4.
The filter element device provided by the embodiment is adopted to process 500ppmNO at 1.0L/min2The gas flow is treated and continuously operated for 125h, NO2All conversion to NO was still 100%.
Example 5
This example provides a method for realizing NO2A method of making a converted filter element material, said method comprising:
preparing 40g of vitamin E into a saturated aqueous solution of the vitamin E, adding 100g of sponge into the saturated aqueous solution of the vitamin E, uniformly stirring, and drying at 150 ℃ for 0.2h to obtain the filter element.
This example also provides a method for realizing NO2The filter core device of conversion, the filter core device include vertical barrel 4 of arranging and be located the closing cap 1 at barrel 4 both ends, be provided with circumference baffle group in the barrel 4, circumference baffle group includes five baffles that are radial distribution in circumference, the long limit butt joint in one side of five baffles intersects in barrel 4 axis department, barrel 4 inner wall is hugged closely along barrel 4 circumference to another relative length, the central angle that forms between the adjacent baffle equals, circumference baffle group is divided barrel 4 internal partitioning for five baffling chambeies totally the same, follow the gas flow direction and mark in proper order into first baffling chamber, second baffling chamber, third baffling chamber, fourth baffling chamber and fifth baffling chamber, fill the filter core material that this embodiment prepared into in five baffling chambeies.
An air inlet is formed in the sealing cover 1 at the bottom of the cylinder body 4, an air outlet is formed in the sealing cover 1 at the top of the cylinder body 4, smoke enters from bottom to top, the air inlet corresponds to the first baffling cavity, and the air outlet corresponds to the fifth baffling cavity. The top in first baffling chamber and the top in second baffling chamber communicate, the bottom in second baffling chamber and the bottom in third baffling chamber communicate, the top in third baffling chamber and the top in fourth baffling chamber communicate, the bottom in fourth baffling chamber and the bottom in fifth baffling chamber communicate, cut off completely between fifth baffling chamber and the first baffling chamber, gaseous gets into first baffling chamber by the air inlet of bottom, flow through second baffling chamber, third baffling chamber, fourth baffling chamber and fifth baffling chamber in proper order along snakelike, turn into the gas vent at top by fifth baffling chamber after NO with filter core material contact reaction.
A filter membrane 2 is arranged between the seal cover 1 and the cylinder body 4, a filter membrane fixing piece 3 is arranged between the seal cover 1 and the cylinder body 4, the filter membrane fixing piece 3 is used for fixing the filter membrane 2 between the seal cover 1 and the cylinder body 4, and the filter membrane fixing piece 3 is respectively in threaded connection with the seal cover 1 and the cylinder body 4.
The filter element device provided by the embodiment is adopted to carry out filter element pair treatment on 3.0L/min 800ppmNO2The gas flow is treated and continuously operated for 12h, NO2All conversion to NO was still 100%.
Example 6
This example provides a method for realizing NO2A method of making a converted filter element material, said method comprising:
preparing 50g of vitamin A into a saturated aqueous solution of the vitamin A, adding 100g of cotton into the saturated aqueous solution of the vitamin A, uniformly stirring, and drying at 70 ℃ for 3h to obtain the filter element.
This example also provides a method for realizing NO2The filter core device of conversion, the filter core device include vertical barrel 4 of arranging and be located the closing cap 1 at barrel 4 both ends, be provided with circumference baffle group in the barrel 4, circumference baffle group includes five baffles that are radial distribution in circumference, the long limit butt joint in one side of five baffles intersects in barrel 4 axis department, barrel 4 inner wall is hugged closely along barrel 4 circumference to another relative length, the central angle that forms between the adjacent baffle equals, circumference baffle group is divided barrel 4 internal partitioning for five baffling chambeies totally the same, follow the gas flow direction and mark in proper order into first baffling chamber, second baffling chamber, third baffling chamber, fourth baffling chamber and fifth baffling chamber, fill the filter core material that this embodiment prepared into in five baffling chambeies.
An air inlet is formed in the sealing cover 1 at the top of the cylinder body 4, an air outlet is formed in the sealing cover 1 at the bottom of the cylinder body 4, smoke enters from top to bottom, the air inlet corresponds to the first baffling cavity, and the air outlet corresponds to the fifth baffling cavity. The bottom in first baffling chamber and the bottom in second baffling chamber communicate, the top in second baffling chamber and the top in third baffling chamber communicate, the bottom in third baffling chamber and the bottom in fourth baffling chamber communicate, the top in fourth baffling chamber and the top in fifth baffling chamber communicate, cut off completely between fifth baffling chamber and the first baffling chamber, gaseous gets into first baffling chamber by the air inlet at top, the second baffling chamber, the third baffling chamber, fourth baffling chamber and fifth baffling chamber of following snakelike flowing through in proper order, turn into the gas vent through the bottom with filter core material contact reaction after NO by fifth baffling chamber and discharge.
A filter membrane 2 is arranged between the seal cover 1 and the cylinder body 4, a filter membrane fixing piece 3 is arranged between the seal cover 1 and the cylinder body 4, the filter membrane fixing piece 3 is used for fixing the filter membrane 2 between the seal cover 1 and the cylinder body 4, and the filter membrane fixing piece 3 is respectively in threaded connection with the seal cover 1 and the cylinder body 4.
The filter element device provided by the embodiment is adopted to treat 4.0L/min 400ppmNO2The gas flow is treated and continuously operated for 35h, NO2All conversion to NO was still 100%.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.

Claims (10)

1. Realization of NO2The converted filter element material is characterized by comprising a carrier and reducing vitamins coated on the surface of the carrier.
2. The filter element material as claimed in claim 1, wherein the carrier comprises one or a combination of at least two of alumino silica gel, molecular sieve, alumina, sponge, cotton or foamed resin;
preferably, the reducing vitamin comprises one or a combination of at least two of vitamin C, vitamin E or vitamin A;
preferably, 5-50 g of reducing vitamin is coated on each 100g of carrier.
3. A method of effecting NO as defined in claim 1 or 22A method of making a converted filter element material, said method comprising:
and adding a carrier into the aqueous solution of the reducing vitamin, uniformly stirring and drying to obtain the filter element.
4. The preparation method according to claim 3, wherein the preparation method specifically comprises:
preparing 5-50 g of reducing vitamin into saturated aqueous solution of the reducing vitamin, adding 100g of carrier into the saturated aqueous solution of the reducing vitamin, uniformly stirring, and drying to obtain the filter element;
preferably, the reducing vitamin comprises one or a combination of at least two of vitamin C, vitamin E or vitamin A;
preferably, the carrier comprises one or a combination of at least two of aluminum silica gel, molecular sieve, alumina, sponge, cotton or foaming resin;
preferably, the drying temperature is 40-150 ℃;
preferably, the drying time is 0.2-10 h.
5. Realization of NO2The converted filter element device is characterized by comprising a cylinder body and sealing covers positioned at two ends of the cylinder body;
the cylinder is internally divided into at least two baffling cavities, the baffling cavities axially penetrate through the cylinder, the baffling cavities are filled with the filter element material of claim 1 or 2, the tops or the bottoms of the two adjacent baffling cavities are communicated, and gas enters the cylinder and flows through the baffling cavities in sequence in a serpentine baffling manner.
6. A filter cartridge arrangement as claimed in claim 5, wherein a filter membrane is provided between the cover and the cartridge body;
preferably, a filter membrane fixing part is arranged between the sealing cover and the barrel body and used for fixing the filter membrane between the sealing cover and the barrel body;
preferably, the filter membrane fixing piece is respectively detachably connected with the sealing cover and the cylinder body;
preferably, the filter membrane fixing piece is respectively connected with the sealing cover and the barrel body through threads.
7. A filter element assembly as claimed in claim 5 or claim 6, wherein a circumferential set of baffles is provided within the barrel, the circumferential set of baffles dividing the interior of the barrel into at least two baffling chambers;
preferably, the circumferential partition plate group comprises at least two partition plates radially distributed in the circumferential direction, the partition plates penetrate through the cylinder body, and a baffling cavity is formed between every two adjacent partition plates;
preferably, the long edges of one side of the partition board are butted and converged at the axis of the cylinder body, and the other opposite long edge is tightly attached to the inner wall of the cylinder body along the circumferential direction of the cylinder body;
preferably, the central angles formed between adjacent partition plates are equal, and the circumferential partition plate group divides the interior of the cylinder into at least two identical baffling cavities.
8. A filter element device according to any one of claims 5-7, wherein one of the two ends of two adjacent baffle chambers close to the air inlet is designated as a proximal end, and the end far away from the air inlet is designated as a distal end;
along gaseous snakelike baffling direction, the distal end intercommunication in first baffling chamber and second baffling chamber, the proximal end intercommunication in second baffling chamber and third baffling chamber, gaseous gets into first baffling chamber by the air inlet, gets into second baffling chamber through the distal end baffling, gets into third baffling chamber by the proximal end baffling in second baffling chamber to analogize in this, thereby the baffling chamber sets gradually according to the mode that near distal end and proximal end communicate in turn and forms snakelike gas passage, and last baffling chamber is adjacent with first baffling chamber and cuts off completely between the chamber with first baffling, and gaseous flow is discharged by the gas outlet after last baffling chamber of flowing through.
9. A filter element assembly as claimed in any one of claims 5 to 8, wherein the interior of the housing is provided axially with a circumferential set of baffles which divide the interior of the housing into an even number of baffle chambers;
preferably, the barrel internal partitioning is odd number baffling chamber, the air inlet has been seted up on the closing cap of barrel one end, the gas outlet has been seted up on the other end closing cap of barrel, along gaseous snakelike baffling direction, the air inlet correspond first baffling chamber, the gas outlet correspond last baffling chamber, gaseous gets into first baffling chamber by barrel one end, flows through behind each baffling chamber in proper order along snakelike baffling and discharges by the barrel other end through last baffling chamber.
10. A filter element assembly as recited in any one of claims 5-9, wherein the interior of the housing is axially provided with a circumferential set of baffles comprising an odd number of baffle plates, the circumferential set of baffles dividing the interior of the housing into an odd number of baffle chambers;
preferably, the interior of the cylinder is divided into an even number of baffling cavities, a sealing cover at one end of the cylinder is simultaneously provided with an air inlet and an air outlet, the air inlet corresponds to the first baffling cavity and the air outlet corresponds to the last baffling cavity along the snakelike baffling direction of air, the air enters the first baffling cavity from one end of the cylinder and sequentially flows through the baffling cavities along the snakelike baffling direction and then is discharged from the same end of the cylinder through the last baffling cavity.
CN202011502862.6A 2020-12-18 2020-12-18 Realization of NO2Converted filter element material, preparation method thereof and filter element device comprising same Pending CN114367178A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
CN202011502862.6A CN114367178A (en) 2020-12-18 2020-12-18 Realization of NO2Converted filter element material, preparation method thereof and filter element device comprising same
CA3201125A CA3201125A1 (en) 2020-12-18 2021-12-17 Apparatuses, systems, and methods for generating nitric oxide
IL303679A IL303679A (en) 2020-12-18 2021-12-17 Apparatuses, systems, and methods for generating nitric oxide
EP21844628.4A EP4244406A1 (en) 2020-12-18 2021-12-17 Apparatuses, systems, and methods for generating nitric oxide
CN202311032508.5A CN117802515A (en) 2020-12-18 2021-12-17 System for generating nitric oxide
CN202311033027.6A CN117568825A (en) 2020-12-18 2021-12-17 System and method for generating nitric oxide
AU2021401099A AU2021401099A1 (en) 2020-12-18 2021-12-17 Apparatuses, systems, and methods for generating nitric oxide
CN202180027930.4A CN115398036B (en) 2020-12-18 2021-12-17 Devices, systems, and methods for generating nitric oxide
CN202311031041.2A CN117070962A (en) 2020-12-18 2021-12-17 Apparatus and method for generating nitric oxide
KR1020237024202A KR20230121851A (en) 2020-12-18 2021-12-17 Devices, systems and methods for producing nitrogen monoxide
JP2023537262A JP2023554469A (en) 2020-12-18 2021-12-17 Equipment, systems and methods for producing nitric oxide
PCT/CN2021/139117 WO2022127902A1 (en) 2020-12-18 2021-12-17 Apparatuses, systems, and methods for generating nitric oxide
US18/043,900 US20230313399A1 (en) 2020-12-18 2021-12-17 Apparatuses, systems, and methods for generating nitric oxide

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CN202011502862.6A CN114367178A (en) 2020-12-18 2020-12-18 Realization of NO2Converted filter element material, preparation method thereof and filter element device comprising same

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07178317A (en) * 1993-12-22 1995-07-18 Osaka Gas Co Ltd Removing method of nitrogen dioxide
US20040108197A1 (en) * 2002-12-06 2004-06-10 Martin Buhr Solid-state light source photolytic nitrogen dioxide converter
US20150328429A1 (en) * 2014-05-14 2015-11-19 Ino Therapeutics Llc Systems And Methods For Indicating Lifetime Of An NO2-to-NO Reactor Cartridge Used To Deliver NO For Inhalation Therapy To A Patient
CN108310971A (en) * 2018-03-14 2018-07-24 张荷友 A kind of flue-gas purification equipment of more cartridge combinations
CN109966816A (en) * 2019-04-29 2019-07-05 北京市环境保护科学研究院 A kind of composite filter element and volatile organic matter purification device
CN209985207U (en) * 2019-03-27 2020-01-24 江苏苏北环保科技有限公司 Biological deodorization device with enhanced filtering effect

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07178317A (en) * 1993-12-22 1995-07-18 Osaka Gas Co Ltd Removing method of nitrogen dioxide
US20040108197A1 (en) * 2002-12-06 2004-06-10 Martin Buhr Solid-state light source photolytic nitrogen dioxide converter
US20150328429A1 (en) * 2014-05-14 2015-11-19 Ino Therapeutics Llc Systems And Methods For Indicating Lifetime Of An NO2-to-NO Reactor Cartridge Used To Deliver NO For Inhalation Therapy To A Patient
CN108310971A (en) * 2018-03-14 2018-07-24 张荷友 A kind of flue-gas purification equipment of more cartridge combinations
CN209985207U (en) * 2019-03-27 2020-01-24 江苏苏北环保科技有限公司 Biological deodorization device with enhanced filtering effect
CN109966816A (en) * 2019-04-29 2019-07-05 北京市环境保护科学研究院 A kind of composite filter element and volatile organic matter purification device

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Application publication date: 20220419