CN106268723A - A kind of convenient, oxygen molecular sieve situ activation method processed of safety and environmental protection - Google Patents
A kind of convenient, oxygen molecular sieve situ activation method processed of safety and environmental protection Download PDFInfo
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- CN106268723A CN106268723A CN201610667349.XA CN201610667349A CN106268723A CN 106268723 A CN106268723 A CN 106268723A CN 201610667349 A CN201610667349 A CN 201610667349A CN 106268723 A CN106268723 A CN 106268723A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
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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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0009—Physical processing
- C01B2210/0014—Physical processing by adsorption in solids
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- Separation Of Gases By Adsorption (AREA)
Abstract
The present invention be more particularly directed to a kind of convenient, oxygen molecular sieve situ activation method processed of safety and environmental protection.This molecular sieve situ activation system, including adsorption tower, adsorption tower by pipeline respectively with valve A, two valves, three valves, five valves, valve B, a valve, four valves, valve A is connected with heater by pipeline B, heater is connected with valve C, three valves are connected with pipeline B by pipeline C, and pipeline C arranges valve D.The present invention utilizes heated nitrogen that molecular sieve is carried out situ activation, is passed through nitrogen in adsorption tower, along with nitrogen temperature rises, makes the moisture in the oxygen molecular sieve processed of inactivation slowly be evaporated, to reach original effect.The method utilizes field resources to transform, and the cost greatly reducing activated molecular sieve puts into, and shortens activity cycle.
Description
(1) technical field
The invention belongs to VPSA air-separating oxygen-making molecular sieve activation technical field, particularly to a kind of convenient, safety and environmental protection
Oxygen molecular sieve situ activation method processed.
(2) background technology
VPSA separating air and making oxygen enrichment technology has been used widely in current technical field, owing to oxygen generation system long period is transported
The reasons such as row and vacuum pump stop jumping cause oxygen molecular sieve water content processed high, and oxygen molecular sieve processed inactivates, and cause oxygen generation system to export oxygen
Concentration is gradually reduced, it is impossible to meet subsequent technique needs, makes device normally to produce, even stops.
Prior art mainly has two kinds to the molecular sieve processing method after inactivation, and one is to draw off molecular sieve in adsorption tower to carry out
Change recruit's sieve；Two is to draw off molecular sieve in adsorption tower to carry out packing then transporting to molecular sieve producer and activate.
The shortcoming of method one is to need to buy brand-new molecular sieve, and investment cost is bigger；The shortcoming of method two is needs
Carry out drawing off original molecular sieve, carry out packed and transported etc., middle loss is big, freight and activation costly and impact even
Continuous production, the replacement cycle is longer.Deactivated molecular sieve returns factory and recharges about need 30 days to activation end, and situ activation molecule
Sieve only needs just can complete for 3 days, and without carrying out the unloading of molecular sieve, filling work, no waste generation, substantially reduces labor intensity
And activity cycle, often activate and once can save more than 700 ten thousand yuan.
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, it is provided that a kind of convenient, oxygen molecular sieve situ activation processed of safety and environmental protection
Method, the method low cost, resource utilization are high, with short production cycle.
The present invention is achieved through the following technical solutions:
A kind of convenient, oxygen molecular sieve situ activation system processed of safety and environmental protection, including adsorption tower, it is characterized in that absorption
Tower by pipeline respectively with valve A, two valves, three valves, five valves, valve B, a valve, four valves, valve A pass through pipeline B and heater phase
Even, heater is connected with valve C, and three valves are connected with pipeline B by pipeline C, and pipeline C arranges valve D.
One valve is connected with aerator by pipeline, and four valves are connected with vacuum pump by pipeline, and heater is connected with temperature-controlling cabinet.
Blank off at two valves, three valves, a valve, four valves, five valves add heat-preservation cotton in being in pipeline.
Nitrogen is entered by valve C.
Some oxygen molecular sieve situ activation systems processed convenient, safety and environmental protection are in parallel, convenient, the oxygen molecule processed of safety and environmental protection
Adsorption tower in sieve situ activation system is connected with corresponding two valves respectively, and two valves are all connected with pipeline A.
Two oxygen molecular sieve situ activation systems processed convenient, safety and environmental protection are in parallel.
The activation method of the oxygen molecular sieve situ activation system processed of described convenient, safety and environmental protection, comprises the following steps:
Utilize heated nitrogen that the moisture in molecular sieve in adsorption tower is evaporated thus carry out situ activation.
(1) heater, temperature-controlling cabinet are set, adsorption tower and subsidiary pipeline are incubated；
(2) by blank off at two valves, three valves, a valve, four valves, five valves add heat-preservation cotton in being in pipeline, to prevent gas blowby to program control
Valve seals and causes damage.
(3) being heated up by heater by drying nitrogen, 99% drying nitrogen after heating exports from adsorption tower top products gas
Access, discharge bottom adsorption tower, molecular sieve is carried out heat-activated；Heating is stopped after temperature is qualified.With 99% nitrogen to absorption
Tower carries out cooling purging, and outlet temperature is down to room temperature and can be run by input coefficient.
Temperature controller gives during activation temperature set, watch adsorption tower bottom temp, when temperature reaches to activate setting value,
Judgement can stop heating.
Adsorption tower bottom temp is watched, when temperature reaches to lower the temperature setting value, it is determined that activated after stopping heating.
Particularly as follows:
(1) first carry out flow process dredging, close two valves, three valves and blank off, prevent gas blowby；
(2) heat-preservation cotton is added in closing a valve, four valves, five valves and being added in pipeline；
(3) close valve D, open valve A, valve B；
(4) temperature-controlling cabinet gives temperature setting, opens valve C, and nitrogen is heated by heater, enters adsorption tower and enter after heating
Row molecular sieve activation, drying nitrogen is discharged at valve B；
(5) after temperature detecting point reaches qualified temperature, constant temperature stops heating in 1.5-2.5 hour, then lowers the temperature by nitrogen at room
Purging, when temperature detecting point reaches room temperature, adsorption tower molecular sieve activation terminates；
(6) if other adsorption towers in parallel on pipeline A, described in molecular sieve activation method such as step (1)-(5) of other adsorption towers；
(7) terminate when molecular sieve all activates, may be incorporated into system after carrying out valve recovery and normally produce.
The invention has the beneficial effects as follows: the present invention utilizes heated nitrogen molecular sieve to be carried out situ activation, in adsorption tower
It is passed through nitrogen, along with nitrogen temperature rises, makes the moisture in the oxygen molecular sieve processed of inactivation slowly be evaporated, to reach original effect
Really.The method utilizes field resources to transform, and the cost greatly reducing activated molecular sieve puts into, and shortens activity cycle.
It is mainly characterized by and just on-the-spot can activate oxygen molecular sieve processed without loading, unloading molecular sieve.
(4) accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the structural representation of the present invention；
In figure, 1. a valve, 2. two valves, 3. three valves, 4. four valves, 5. five valves, 6. valve A, 7. valve D, 8. valve B, 9. valve C,
10. temperature detecting point, 11. pressure detecting points, 12. temperature detecting point, 13. temperature-controlling cabinets, 14. heaters, 15. adsorption tower A, 16.
Adsorption tower B, 17 pipeline C, 18 pipeline B, 19 aerators, 20 vacuum pumps, 21 pipeline A.
(5) detailed description of the invention
Embodiment 1
This embodiment includes a kind of convenient, oxygen molecular sieve situ activation system processed of safety and environmental protection, and including adsorption tower, adsorption tower leads to
Piping respectively with valve A6, two valve 2, three valve 3, five valves 5, valve B8, valve 1, four valve 4, valve A6 is by pipeline B18 and adding
Hot device 14 is connected, and heater 14 is connected with valve C9, and three valves 3 are connected with pipeline B18 by pipeline C17, and pipeline C17 arranges valve
Door D7.
One valve 1 is connected with aerator 19 by pipeline, and four valves 4 are connected with vacuum pump 20 by pipeline, heater 14 and temperature
Control cabinet 13 is connected.
Blank off at two valves, three valves, a valve, four valves, five valves add heat-preservation cotton in being in pipeline.
Nitrogen is entered by valve C9.
Some oxygen molecular sieve situ activation systems processed convenient, safety and environmental protection are in parallel, convenient, the oxygen molecule processed of safety and environmental protection
Adsorption tower in sieve situ activation system is connected with corresponding two valves 2 respectively, and two valves 2 are all connected with pipeline A21.
Two oxygen molecular sieve situ activation systems processed convenient, safety and environmental protection are in parallel.
The activation method of the oxygen molecular sieve situ activation system processed of described convenient, safety and environmental protection, comprises the following steps:
Utilize heated nitrogen that the moisture in molecular sieve in adsorption tower is evaporated thus carry out situ activation.
Particularly as follows:
(1) first carry out flow process dredging, close two valve 2, three valve 3 and blank ofves, prevent gas blowby；
(2) heat-preservation cotton is added in closing valve 1, four valve 4, five valve 5 and being added in pipeline；
(3) close valve D7, open valve A6, valve B8；
(4) temperature-controlling cabinet 14 gives temperature setting, opens valve C9, and nitrogen is heated by heater 14, enters and inhale after heating
Attached tower carries out molecular sieve activation, and drying nitrogen is discharged at valve B8；
(5) after temperature detecting point 10 reaches qualified temperature, constant temperature stops heating in 2 hours, then carries out cooling by nitrogen at room and blows
Sweeping, when temperature detecting point 10 reaches room temperature, adsorption tower molecular sieve activation terminates；
(6) if other adsorption towers in parallel on pipeline A, described in molecular sieve activation method such as step (1)-(5) of other adsorption towers；
(7) terminate when molecular sieve all activates, may be incorporated into system after carrying out valve recovery and normally produce.
Embodiment 2
A kind of convenient, oxygen molecular sieve situ activation system processed of safety and environmental protection of this embodiment, including adsorption tower, adsorption tower is by pipe
Road respectively with valve A6, two valve 2, three valve 3, five valves 5, valve B8, valve 1, four valve 4, valve A6 pass through pipeline B18 and heater
14 are connected, and heater 14 is connected with valve C9, and three valves 3 are connected with pipeline B18 by pipeline C17, and pipeline C17 arranges valve
D7。
One valve 1 is connected with aerator 19 by pipeline, and four valves 4 are connected with vacuum pump 20 by pipeline, heater 14 and temperature
Control cabinet 13 is connected.
Blank off at two valves, three valves, a valve, four valves, five valves add heat-preservation cotton in being in pipeline.
Nitrogen is entered by valve C9.
Some oxygen molecular sieve situ activation systems processed convenient, safety and environmental protection are in parallel, convenient, the oxygen molecule processed of safety and environmental protection
Adsorption tower in sieve situ activation system is connected with corresponding two valves 2 respectively, and two valves 2 are all connected with pipeline A21.
Preferably, two oxygen molecular sieve situ activation systems processed convenient, safety and environmental protection are in parallel.Adsorption tower A on i.e. pipeline A,
Adsorption tower B is in parallel, wherein, and adsorption tower A molecular sieve activation process:
(1) first carry out flow process dredging, close two valve 2, three valve 3 and blank ofves, prevent gas blowby；
(2) add heat-preservation cotton in closing valve 1, four valve 4, five valve 5 and being added in pipeline, protect valve seal；
(3) close valve D7, open valve A6, valve B8；
(4) temperature-controlling cabinet 14 gives temperature setting, opens valve C9, and nitrogen is heated by heater 14, enters and inhale after heating
Attached tower A15 carries out molecular sieve activation, and drying nitrogen is discharged at valve B8, notes the temperature on viewing temperature-controlling cabinet 13 during activation
Degree, the temperature of temperature detecting point 12, the pressure of pressure detecting point 11, the temperature etc. of temperature detecting point 10, note on temperature-controlling cabinet 13
Temperature not above setting value；
(5) after temperature detecting point 10 reaches qualified temperature, constant temperature stops heating in 2 hours, then carries out cooling by nitrogen at room and blows
Sweeping, when temperature detecting point 10 reaches room temperature, adsorption tower molecular sieve activation terminates；
(6) for the adsorption tower B16 same above-mentioned steps of molecular sieve activation method.
(7) terminate when two tower molecular sieves all activate, may be incorporated into system after carrying out valve recovery and normally produce.
The present invention relates to VPSA air-separating oxygen-making molecular sieve activation technical field, by drying nitrogen by heater liter
Temperature, 99% drying nitrogen after heating accesses from the outlet of adsorption tower top products gas, discharges deactivated molecular sieve bottom adsorption tower
Carry out on-the-spot heat-activated；Heating is stopped after temperature is qualified；With 99% nitrogen, adsorption tower being carried out cooling purging, outlet temperature drops
Can run by input coefficient to room temperature, the method without carry out deactivated molecular sieve discharging and, after long-distance transportation and activation complete
Recharge.
Although it should be noted that the present invention is disclosed above by preferred embodiment, but being not limited to the present invention
Method.Any those of ordinary skill in the art, in the case of without departing from the present invention program scope, may be by above-mentioned taking off
The present invention program is made many possible variations and modification by the technology contents shown, or is revised as the equivalence enforcement of equivalent variations
Example.Therefore without departing from the content of the present invention program, according to essence of the present invention to any simple modification made for any of the above embodiments, etc.
With change and modification, all should fall in the range of the present invention program protects.
Claims (10)
1. convenient, an oxygen molecular sieve situ activation system processed for safety and environmental protection, including adsorption tower, it is characterised in that: adsorption tower
By pipeline respectively with valve A, two valves, three valves, five valves, valve B, a valve, four valves, valve A pass through pipeline B and heater phase
Even, heater is connected with valve C, and three valves are connected with pipeline B by pipeline C, and pipeline C arranges valve D.
Convenient, the oxygen molecular sieve situ activation system processed of safety and environmental protection the most according to claim 1, it is characterised in that: one
Valve is connected with aerator by pipeline, and four valves are connected with vacuum pump by pipeline, and heater is connected with temperature-controlling cabinet.
Convenient, the oxygen molecular sieve situ activation system processed of safety and environmental protection the most according to claim 1 and 2, it is characterised in that:
Relevant program-controlled valve blank off and heat-preservation cotton.
Convenient, the oxygen molecular sieve situ activation system processed of safety and environmental protection the most according to claim 1 and 2, it is characterised in that:
Nitrogen is entered by valve C.
Convenient, the oxygen molecular sieve situ activation system processed of safety and environmental protection the most according to claim 1 and 2, it is characterised in that:
Some oxygen molecular sieve situ activation systems processed convenient, safety and environmental protection are in parallel, live in oxygen molecular sieve scene processed convenient, safety and environmental protection
Adsorption tower in change system is connected with corresponding two valves respectively, and two valves are all connected with pipeline A.
Convenient, the oxygen molecular sieve situ activation system processed of safety and environmental protection the most according to claim 1 and 2, it is characterised in that:
Two oxygen molecular sieve situ activation systems processed convenient, safety and environmental protection are in parallel.
7. an activation method for the oxygen molecular sieve situ activation system processed of convenient, safety and environmental protection according to claim 1,
It is characterized in that: comprise the following steps:
Utilize heated nitrogen that the moisture in molecular sieve in adsorption tower is evaporated thus carry out situ activation.
The activation method of the oxygen molecular sieve situ activation system processed of convenient, safety and environmental protection the most according to claim 7, it is special
Levy and be:
(1) first carry out flow process dredging, close two valves, three valves and blank off, prevent gas blowby；
(2) heat-preservation cotton is added in closing a valve, four valves, five valves and being added in pipeline；
(3) close valve D, open valve A, valve B；
(4) temperature-controlling cabinet gives temperature setting, opens valve C, and nitrogen is heated by heater, enters adsorption tower and enter after heating
Row molecular sieve activation, drying nitrogen is discharged at valve B；
(5) constant temperature after temperature detecting point reaches qualified temperature, stops heating, then carries out cooling purging by nitrogen at room, work as temperature
When degree test point reaches room temperature, adsorption tower molecular sieve activation terminates；
(6) terminate when molecular sieve all activates, may be incorporated into system after carrying out valve recovery and normally produce.
Convenient, the oxygen molecular sieve situ activation system processed of safety and environmental protection the most according to claim 8, it is characterised in that: pipe
On road A, other adsorption towers in parallel, add molecular sieve activation method such as step (1)-(5) institute of other adsorption towers before step (6)
State.
Convenient, the oxygen molecular sieve situ activation system processed of safety and environmental protection the most according to claim 8, it is characterised in that: step
Suddenly in (5), constant temperature 1.5-2.5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610667349.XA CN106268723A (en) | 2016-08-15 | 2016-08-15 | A kind of convenient, oxygen molecular sieve situ activation method processed of safety and environmental protection |
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| CN201610667349.XA CN106268723A (en) | 2016-08-15 | 2016-08-15 | A kind of convenient, oxygen molecular sieve situ activation method processed of safety and environmental protection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529796A (en) * | 2018-12-29 | 2019-03-29 | 赤峰富邦铜业有限责任公司 | A kind of apparatus and method for restoring omnibus control system molecular sieve activation |
| CN115283254A (en) * | 2022-07-29 | 2022-11-04 | 中触媒新材料股份有限公司 | System and method for quickly screening and activating oxygen production adsorbent particle airflow |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301999A (en) * | 2008-06-25 | 2008-11-12 | 天津大学 | Method for collecting oxygen from air |
| CN102311098A (en) * | 2010-07-02 | 2012-01-11 | 上海瑞气气体设备有限公司 | Pressure varying adsorption oxygen preparing device with back blowing heating tank |
| CN202185313U (en) * | 2011-07-14 | 2012-04-11 | 宝山钢铁股份有限公司 | Molecular sieve regenerative heater with internal leakage indicator |
| CN103143334A (en) * | 2013-03-06 | 2013-06-12 | 富阳凯合空分设备有限公司 | Molecular sieve activation device for pressure swing adsorption oxygen preparation device |
-
2016
- 2016-08-15 CN CN201610667349.XA patent/CN106268723A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301999A (en) * | 2008-06-25 | 2008-11-12 | 天津大学 | Method for collecting oxygen from air |
| CN102311098A (en) * | 2010-07-02 | 2012-01-11 | 上海瑞气气体设备有限公司 | Pressure varying adsorption oxygen preparing device with back blowing heating tank |
| CN202185313U (en) * | 2011-07-14 | 2012-04-11 | 宝山钢铁股份有限公司 | Molecular sieve regenerative heater with internal leakage indicator |
| CN103143334A (en) * | 2013-03-06 | 2013-06-12 | 富阳凯合空分设备有限公司 | Molecular sieve activation device for pressure swing adsorption oxygen preparation device |
Non-Patent Citations (1)
| Title |
|---|
| 李化治: "《制氧技术》", 31 July 2001, 冶金工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529796A (en) * | 2018-12-29 | 2019-03-29 | 赤峰富邦铜业有限责任公司 | A kind of apparatus and method for restoring omnibus control system molecular sieve activation |
| CN115283254A (en) * | 2022-07-29 | 2022-11-04 | 中触媒新材料股份有限公司 | System and method for quickly screening and activating oxygen production adsorbent particle airflow |
| CN115283254B (en) * | 2022-07-29 | 2023-08-25 | 中触媒新材料股份有限公司 | Rapid screening and activating system and method for air flow of oxygen-making adsorbent particles |
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