CN112387064A - Organic waste gas low-wind-resistance fixed adsorption bed device - Google Patents
Organic waste gas low-wind-resistance fixed adsorption bed device Download PDFInfo
- Publication number
- CN112387064A CN112387064A CN202011212827.0A CN202011212827A CN112387064A CN 112387064 A CN112387064 A CN 112387064A CN 202011212827 A CN202011212827 A CN 202011212827A CN 112387064 A CN112387064 A CN 112387064A
- Authority
- CN
- China
- Prior art keywords
- adsorption
- plate
- unit
- air inlet
- wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- 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
- B01D53/0407—Constructional details of adsorbing systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model provides a low windage fixed adsorption bed device of organic waste gas, the form of board-like adsorption element is selected for use to the adsorption medium, it separates the interval and arranges to use business turn over wind face as the interface board-like adsorption element, the business turn over wind face of board-like adsorption element both sides encloses an "N" type basic side wall with a pair of main baffle and protects the structure, two wedge-shaped spaces that main baffle and board-like adsorption filter unit enclose have formed a pair of business turn over wind passageway, the main purpose that forms business turn over wind unit like this is the tissue form that changes the air current, reduced the wind speed that passes through the adsorption medium simultaneously and passed through thickness. On the premise that the total mass of the adsorption medium is the same and the requirement on adsorption efficiency is the same, the wind loss is greatly reduced.
Description
Technical Field
A fixed adsorption bed, in particular to a low wind resistance treatment device aiming at large-air-volume low-concentration organic waste gas.
Background
Volatile Organic Compounds (VOCs) are a generic term for all organic compounds that can be volatilized into the air at normal temperature and pressure. The discharge of organic waste gas in industry involves a plurality of industries, and pollutants are various and complex in composition. The composition of VOCs is complex, the treatment technical system is complex, and more than ten technologies and combination technologies are involved. In order to reduce the treatment cost, the adsorption material is usually used to firstly perform adsorption concentration on the low-concentration waste gas, and then perform condensation recovery, catalytic combustion or high-temperature incineration treatment. The application of the adsorption concentration technology is rapidly developed in recent years, and mainly comprises a fixed bed adsorption concentration technology and a zeolite rotating wheel adsorption concentration technology. Compared with zeolite rotary wheel adsorption technology, the fixed bed adsorption technology has the advantage of low cost, but the fixed activated carbon adsorption bed generally has some problems: the adsorption bed has large air flow resistance and high energy consumption.
Disclosure of Invention
In order to solve the technical problem, a fixed adsorption bed device with low wind resistance for organic waste gas is provided, which comprises: the box body is provided with at least one plate-type adsorption and filtration unit and at least one pair of main partition plates;
the box body is used for forming an enclosure and support structure of the fixed adsorption bed and providing an air inlet and an air outlet interface to the outside;
at least one plate-type adsorption and filtration unit is used for adsorbing organic waste gas, the plate-type adsorption and filtration units are arranged at intervals, and the air inlet and outlet surfaces of the plate-type adsorption and filtration units are interfaces for separating spaces;
the main partition plates are connected with two opposite corners of the adsorption and filtration unit, and form a basic side enclosure structure with the air inlet and outlet surfaces of the basic adsorption unit, and two unsealed end surfaces of the basic side enclosure structure are sealed by the enclosure structure to form an air inlet and outlet enclosure structure unit.
Preferably, the plate-type adsorption filtration unit in the device consists of not less than one honeycomb activated carbon or honeycomb zeolite block.
Preferably, the device can be directly heated in the box body for desorption.
Drawings
FIG. 1 is an embodiment of the apparatus according to the present invention;
description of the reference numerals
1-a box body; 2-plate type adsorption filtration unit; 3-a main partition board; 4-a heater; 5-honeycomb activated carbon.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings.
In view of the defects of the prior art, the invention aims to provide a fixed adsorption bed device with low wind resistance for organic waste gas, and the realization cost is low.
The aim of the invention is achieved by the following technical measures:
firstly, the box body is used for forming an enclosure and support structure of the fixed adsorption bed; the plate-type adsorption filtration units in the box body are arranged at intervals by taking the air inlet and outlet surfaces as interfaces, a pair of main partition plates are connected with two opposite ends of the adsorption filtration units, a basic side enclosure structure is formed by the main partition plates and the air inlet and outlet surfaces, and the upper end surface and the lower end surface of the basic side enclosure structure are sealed to form an air inlet and outlet enclosure structure unit.
The fixed adsorption bed is installed by a box body, and an external gas circuit interface and fixed installation are realized. The adsorption medium in the box body is in a plate type adsorption unit form, the plate type adsorption units are arranged at intervals by taking the air inlet and outlet surfaces as interfaces, the air inlet and outlet surfaces on two sides of the plate type adsorption units and a pair of main partition plates form an N-shaped basic side enclosure structure, two wedge-shaped spaces enclosed by the main partition plates and the plate type adsorption filtering units form a pair of air inlet and outlet channels, the upper end and the lower end of the air inlet and outlet channels are further sealed, and the air inlet and outlet processing units can be formed by sealing the two ends of the air inlet and outlet channels. The main purpose of forming such air inlet and outlet units is to change the pattern of the air flow compared to a conventional fixed bed, which involves a relatively large thickness of the gas to be treated passing through the adsorption medium, which corresponds to a large wind resistance. The air inlet and outlet processing unit is used for air inlet and outlet, the gas to be processed penetrates through the large surface of the plate-type filter, the thickness of the absorption medium penetrating through the air inlet and outlet processing unit is the length of the short side of the plate-type absorption unit, and the air speed and the penetrating thickness of the absorption medium are reduced simultaneously. On the premise that the total mass of the adsorption medium is the same and the requirement on adsorption efficiency is the same, the wind loss is greatly reduced by utilizing the device according to the wheeler equation.
And secondly, the plate-type adsorption filtering unit consists of at least one honeycomb activated carbon or honeycomb zeolite block.
The honeycomb activated carbon or honeycomb zeolite block is a common organic waste gas adsorption material at present, and is generally in a cubic structure, the side length of the cube is usually 100 mm, and the pore diameter of the honeycomb is usually 1 mm to 3 mm. In current fixed bed adsorption schemes, the honeycomb activated carbon or honeycomb zeolite blocks are typically arranged as walls of a certain thickness, plugged in the middle of the air inlet. In the scheme, a plurality of honeycomb activated carbon or honeycomb zeolite blocks form a plate-type adsorption unit, and the plate-type adsorption unit can be understood as a rectangular unit with 1 layer number and formed by the honeycomb activated carbon or the honeycomb zeolite blocks.
Finally, the adsorption bed can be directly heated in the box body for desorption.
When a fixed adsorbent bed is used for VOC treatment, a plurality of adsorbent beds are usually used, and some of the beds are in the adsorption process and some of the beds are in the thermal desorption process during the operation. The use of a plurality of adsorption beds will increase equipment investment and increase the installation area, adopt a fixed bed and make it possess the function of absorption and desorption respectively at different moments, add the heater unit in the adsorption bed and can simplify the gas circuit, reduce cost.
By combining the above technical measures, the invention is realized by the device shown in the embodiment of fig. 1
The basic operation process is as follows, as explained by using fig. 1:
FIG. 1 is a schematic cross-sectional view of a fixed adsorbent bed according to the present invention, which is a view of a fixed adsorbent bed, in which a fixed adsorbent bed casing is cut at a middle position along a horizontal plane and then viewed from above. Organic waste gas to be treated enters the box body from an air inlet of the box body shown in the figure, the heater is not heated during adsorption, organic gas enters a space surrounded by the plate-type adsorption unit and the main partition plate on the air inlet side of the box body, then enters the plate-type adsorption unit from the side surface of the plate-type adsorption unit for adsorption, passes through the plate-type adsorption unit to complete adsorption, then flows out from the space surrounded by the main partition plate on the other side and the plate-type adsorption filtering unit, enters the air outlet side of the box body, and flows out of the box body from the air outlet, the main partition plate is shown in a straight plate structure form, and can also adopt a folded plate.
The plate-type adsorption filtration unit is formed by closely arranging a plurality of honeycomb activated carbon blocks shown in the figure, ventilation honeycomb holes on the honeycomb activated carbon blocks are led to a space enclosed by the plate-type adsorption filtration unit and the main partition plate, the honeycomb surface is an air inlet and outlet surface, and air enters the upper end and the lower end of the space enclosed by the plate-type adsorption filtration unit and the main partition plate
The end part sealing is carried out by utilizing the upper and lower enclosing structures of the box body, so that the gas can only pass through the plate type filter from the honeycomb surface of the plate type adsorption and filtration unit, and the self independent enclosing structures can be adopted if the structure needs to be sealed without using the bottom and the top of the box body.
The heater heats the desorption gas during desorption, and realizes thermal desorption to the plate-type adsorption filtration unit.
Claims (3)
1. An organic waste gas low-wind resistance fixed type adsorption bed device, which is characterized by comprising: the box body is provided with at least one plate-type adsorption unit and at least one pair of main partition plates;
the box body is used for forming an enclosure and support structure of the fixed adsorption bed and providing an air inlet and an air outlet interface to the outside;
at least one plate-type adsorption unit is used for adsorbing organic waste gas, the plate-type adsorption filtration units are arranged at intervals, and the air inlet and outlet surfaces of the plate-type adsorption filtration units are interfaces for separating spaces;
the main partition plates are connected with two opposite corners of the adsorption and filtration unit, and form a basic side enclosure structure with the air inlet and outlet surfaces of the basic adsorption unit, and two unsealed end surfaces of the basic side enclosure structure are sealed by the enclosure structure to form an air inlet and outlet enclosure structure unit.
2. The fixed adsorbent bed of claim 1, wherein: the plate-type adsorption filtration unit is composed of at least one honeycomb activated carbon or honeycomb zeolite block.
3. The fixed adsorbent bed of claim 2, wherein: the adsorption bed can be directly heated in the box body for desorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011212827.0A CN112387064A (en) | 2020-11-04 | 2020-11-04 | Organic waste gas low-wind-resistance fixed adsorption bed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011212827.0A CN112387064A (en) | 2020-11-04 | 2020-11-04 | Organic waste gas low-wind-resistance fixed adsorption bed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112387064A true CN112387064A (en) | 2021-02-23 |
Family
ID=74598100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011212827.0A Withdrawn CN112387064A (en) | 2020-11-04 | 2020-11-04 | Organic waste gas low-wind-resistance fixed adsorption bed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112387064A (en) |
-
2020
- 2020-11-04 CN CN202011212827.0A patent/CN112387064A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2570562C (en) | Adsorptive separation of gas streams | |
| JP2016532559A (en) | High performance adsorbent media for concentration systems. | |
| DE69809581D1 (en) | GAS FILTER | |
| JP2004515349A (en) | Pressure swing adsorption using contaminant-sensitive adsorbents | |
| TWI689345B (en) | Adsorption material module, gas filtration structure and gas filtration mask | |
| US20220193598A1 (en) | Adsorber structure for gas separation processes | |
| CN210125274U (en) | Molecular sieve rotating wheel module for waste gas purification equipment and integrated waste gas purification equipment | |
| CN206184212U (en) | Fixed adsorption bed of honeycomb activated carbon | |
| EP0830263B1 (en) | Air conditioning system | |
| CN112387064A (en) | Organic waste gas low-wind-resistance fixed adsorption bed device | |
| CN202778201U (en) | Folding iodine adsorber | |
| JPH06327936A (en) | Method for separating and recovering carbon dioxide in waste gas | |
| CN211864494U (en) | Gas purification device | |
| CN208436658U (en) | A kind of electric discharge basic unit, catalytic converter and waste gas cleaning system | |
| Shen et al. | Cosorption characteristics of solid adsorbents | |
| CN215610421U (en) | Novel zeolite concentration runner with multilayer structure | |
| CN212236607U (en) | Waste gas treatment equipment | |
| CN105056704B (en) | Container member, container, air-purifying module and air purifier | |
| CN204485501U (en) | Medical air purifier | |
| CN104208988B (en) | The compressed air drier that a kind of window filters | |
| CN103725338A (en) | Device and method for removing oxosilane gas in combustible gas | |
| CN219518325U (en) | Organic waste gas purifying device with long service life and low flow resistance | |
| CN218501661U (en) | Uniform distribution flow guide type activated carbon adsorber | |
| CN217472981U (en) | Organic waste gas catalytic combustion regeneration purification composite set | |
| DE69827676D1 (en) | ELECTRICALLY REGENERABLE AIR FILTER MEDIUM AND MOLECULAR SCREEN MADE OF CARBON FIBER COMPOSITE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210223 |