CN101524612B - Device and method for recycling volatile substances by utilizing adsorbent bed - Google Patents
Device and method for recycling volatile substances by utilizing adsorbent bed Download PDFInfo
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- CN101524612B CN101524612B CN2009100366943A CN200910036694A CN101524612B CN 101524612 B CN101524612 B CN 101524612B CN 2009100366943 A CN2009100366943 A CN 2009100366943A CN 200910036694 A CN200910036694 A CN 200910036694A CN 101524612 B CN101524612 B CN 101524612B
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Abstract
The invention discloses a device and a method for recycling volatile substances by utilizing an adsorbent bed, which have the advantages of high efficiency and energy saving. The device comprises an adsorbent bed (1), wherein a mixing gas injection end of the adsorbent bed (1) is connected with a mixing gas pipeline (2) and a desorption pipeline (8). A gas inlet valve (3) is arranged on the mixing gas pipeline (2), and a desorption valve (9) is arranged on the desorption pipeline (8). A steam supply end of the adsorbent bed (1) is connected with a tail gas pipeline (4) and a steam pipeline (6), wherein a tail gas valve (5) is arranged on the tail gas pipeline(4), and a steam valve (7) is arranged on the steam pipeline (6). The steam supply end of the absorbent bed (1) is also connected with a power gas inlet pipe (10), and a power gas inlet valve (11) is arranged on the power gas inlet pipe (10). The invention can be widely applied to chemical engineering field, especially the fields for recycling volatile substances.
Description
Technical field
The present invention relates to a kind of device and method with recovering volatile material with adsorption bed.
Background technology
Adsorbent bed is widely used in modern industry, and its effect is to remove, reclaim volatile materials from process gas logistics such as air or nitrogen stream.As shown in Figure 1, present its structure of employed adsorbent bed mainly is: use adsorbent as adsorbent bed 1 in confined chamber, adsorbent bed 1 bottom is connected with mist (air that contains volatile materials) admission line 2, admission line 2 is provided with intake valve 3, the top of adsorbent bed 1 is connected with exhaust pipe 4, exhaust pipe 4 is provided with tail gas valve 5, top at adsorbent bed 1 also is communicated with jet chimney 6, described jet chimney 6 is provided with steam valve 7, the bottom of adsorbent bed 1 also is connected with desorb pipeline 8, and desorb pipeline 8 is provided with desorb valve 9; Do not have auxiliary power inlet duct in this structure, when practical application, gas flow is comparatively slow, therefore cause operating efficiency not high, and energy-saving effect is not good, is difficult to satisfy the instructions for use that improves day by day.
Reclaim the conventional method of volatile materials and divide two steps, i.e. (one) adsorption step: open intake valve, tail gas valve, steam off valve, desorb valve, make the gas communication that contains described volatile materials cross described adsorbent bed, described volatile materials is attracted on the adsorbent of described adsorbent bed, and residual gas is arranged to atmosphere by offgas duct; (2) desorption procedure: the described volatile materials that will be adsorbed on the described adsorbent bed is reclaimed by the steam desorb from described adsorbent bed; In the prior art, when carrying out above-mentioned desorption procedure, continue to feed big flow steam, adsorbent bed 1 temperature of lower is reached more than 100 ℃; Last in desorb, steam valve 7 and desorb valve 9 are almost closed simultaneously, and intake valve 3 and tail gas valve 5 are also almost opened simultaneously.There is following problem in such technological process: 1) in desorption process, continue to feed big flow steam, adsorbent bed 1 temperature of lower is reached more than 100 ℃, and the boiling point of volatile materials generally is no more than 100 ℃ (boiling point as carrene only is 39.8 ℃), and this has just caused the energy waste of steam; 2) last in desorb, steam off valve 7 and desorb valve 9 are also opened intake valve 3 and tail gas valve 5 simultaneously simultaneously, like this, the steam that feeds in desorb final stage 2～3 minutes is just entered in the atmosphere in vain, further caused the energy waste of steam, and initial at adsorption step, because the temperature of adsorbent bed is very high and humidity is also very big, reduced the adsorption function of adsorbent bed 1 widely, and make in the tail gas volatile species concentration higher, cause the waste of volatile materials and the pollution of environment, application number provides a kind of method with recovering volatile material with adsorption bed for 200710028613 patent application, and this method has solved the problems referred to above, but owing to do not use auxiliary power inlet duct in this method, therefore, its efficient fails to be further improved.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of efficient, energy-conservation device and method with recovering volatile material with adsorption bed is provided.
The technical scheme that device adopted with recovering volatile material with adsorption bed described in the present invention is: described device comprises adsorbent bed, described adsorbent bed inside is provided with adsorbent, the gaseous mixture injection end of described adsorbent bed is connected with the mist pipeline, the desorb pipeline, mist in the described mist pipeline is the gas that contains volatile materials, described mist pipeline is provided with intake valve, described desorb pipeline is provided with the desorb valve, the steam supply side of described adsorbent bed is connected with exhaust pipe, jet chimney, described exhaust pipe is provided with the tail gas valve, described jet chimney is provided with steam valve, the steam supply side of described adsorbent bed also is connected with the power air inlet pipe, and described power air inlet pipe is provided with the power intake valve.
Optimize, described desorb pipeline is provided with the gas pumping device, and described gas pumping device is located at the front or the back of described desorb valve.
Power gas in the described power air inlet pipe is that compressed air or nitrogen or inert gas or other are worth low gas than steam.
The invention has the beneficial effects as follows: provided by the present invention with in the device of recovering volatile material with adsorption bed, steam supply side at adsorbent bed is connected with the power air inlet pipe, described power air inlet pipe is provided with the power intake valve, when work, can in time open described power intake valve as required,, accelerate the collection process of volatile materials so that power gas to be provided, thereby increase work efficiency, energy savings reduces use cost simultaneously.The power gas that described power air inlet pipe is provided is that compressed air or nitrogen or inert gas or other are worth low gas than steam, to guarantee to meet in use requirements of saving energy.
Also be provided with the gas pumping device on the desorb pipeline of described device,, can move or close described gas pumping device on request, further improve the organic efficiency of volatile materials according to need of work.
Method with recovering volatile material with adsorption bed of the present invention comprises following two steps:
(1) adsorption step: open intake valve, tail gas valve, steam off valve, desorb valve, make the gas communication that contains described volatile materials cross described adsorbent bed, described volatile materials is attracted on the adsorbent of described adsorbent bed, and residual gas is arranged to atmosphere by offgas duct;
(2) desorption procedure: the described volatile materials that will be adsorbed on the described adsorbent bed is reclaimed by the steam desorb from described adsorbent bed;
Described volatile materials is that boiling point is lower than 100 ℃ volatile materials, and described desorption procedure is carried out according to following process:
Open described steam valve, open described desorb valve, heat to adsorbent bed with steam, postpone to make described adsorbent bed temperature meet or exceed the boiling point of described volatile materials more than 1 minute, close described steam valve again, open described power intake valve, postpone to close described power intake valve more than 20 seconds, close described desorb valve again, open described tail gas valve then, described intake valve enters described adsorption step.
Described desorption procedure adopts the beneficial effect of such scheme to be, elder generation's steam off valve, open described power intake valve again, and postpone to surpass after 20 seconds, close described power intake valve, close the desorb valve again, open power gas that described power intake valve the injects steam after with the volatile materials on the desorb adsorbent bed and be pushed into described desorb pipeline place and taken away, accelerate the desorb process, and impel the adsorbent bed cooling, reduce humidity simultaneously, effectively improved adsorption effect.
Optimize, in the technical process of above-mentioned desorption procedure, add the startup and the stoppage in transit step of described gas pumping device, that is:
Open described steam valve, open described desorb valve, heat to adsorbent bed with steam, postpone to close described steam valve more than 1 minute, open described power intake valve, postpone more than 20 seconds, close described power intake valve, start described gas pumping device, postpone more than 20 seconds, the described gas pumping device of stopping transport, close described desorb valve again, open described tail gas valve then, open described intake valve and enter described adsorption step.
Described desorption procedure adopts the beneficial effect of such scheme to be, steam after power gas is with the volatile materials on the desorb adsorbent bed is pushed into described desorb pipeline place, after closing described power intake valve, start the gas pumping device, and postpone more than 20 seconds, the steam of acceleration after with desorb pumps out from adsorbent bed, and efficient is further improved.
The technical process of described desorption procedure also can be carried out according to following process:
Open described steam valve, open described desorb valve, heat to adsorbent bed, postpone more than 1 minute with steam, open described power intake valve, postpone to close described steam valve more than 20 seconds, postpone more than 20 seconds, close described power intake valve, close described desorb valve again, open described tail gas valve then, open described intake valve and enter described adsorption step.
Described desorption procedure adopts the beneficial effect of such scheme to be, before closing described steam valve, open described power intake valve, the injection of power gas and the after-stage of desorb are carried out simultaneously, after postponing more than 20 seconds, close described steam valve again, close the power intake valve then, when guaranteeing desorption effect, make desorb rhythm compact more thus.
The technical process of described desorption procedure also can be carried out according to following process:
Open described steam valve, open described desorb valve, heat to adsorbent bed with steam, postpone to close described steam valve more than 1 minute, open described power intake valve, start described gas pumping device, postpone to close described power intake valve more than 20 seconds, postpone more than 20 seconds, the described gas pumping device of stopping transport, close described desorb valve again, open described tail gas valve then, open described intake valve and enter described adsorption step.
Described desorption procedure adopts the beneficial effect of such scheme to be, after opening described power intake valve, start described gas pumping device, and postpone more than 20 seconds, make the suction acting in conjunction of the promotion of power gas and gas pumping device that the steam of volatile materials be arranged in desorb, acceleration is extracted steam out from adsorbent bed, close described power intake valve then, postpones to close more than 20 seconds the gas pumping device again.
The technical process of described desorption procedure can also be carried out according to following process:
Open described steam valve, open described desorb valve, open described power intake valve, start described gas pumping device, heat to adsorbent bed, postpone more than 1 minute with steam, close described steam valve, postpone to close described power intake valve more than 20 seconds, postpone more than 20 seconds, the described gas pumping device of stopping transport, close described desorb valve again, open described tail gas valve then, open described intake valve and enter described adsorption step.
Described desorption procedure adopts the beneficial effect of such scheme to be, in the starting stage of desorb, open steam valve earlier, open described power intake valve again, start described gas pumping device then, steam supply, power gas injection, intake-gas are carried out jointly, and postpone more than 1 minute, greatly improve desorption efficiency, close described steam valve then earlier, and close described power intake valve after postponing more than 20 seconds, postpone the described gas pumping device of stopping transport more than 20 seconds again, by this process operation, desorption efficiency is improved, and guarantee desorption effect.
The technical process of described desorption procedure can also be carried out according to following process:
Open described steam valve, open described desorb valve, heat to adsorbent bed with steam, postpone to close described steam valve more than 1 minute, open described power intake valve, start described gas pumping device, postpone to close described power intake valve more than 20 seconds, postpone more than 20 seconds (after treating that exhaust emissions brings out existing negative pressure), open described tail gas valve, the described gas pumping device of stopping transport cuts out described desorb valve, opens described intake valve and enters described adsorption step.
Described desorption procedure adopts the beneficial effect of such scheme to be, in the starting stage of desorb, open steam valve earlier, open the desorb valve, heat to adsorbent bed with steam, postpone more than 1 minute, make and carry out sufficient heat exchange between steam and the adsorbent bed earlier, close described steam valve then, open described power intake valve, start described gas pumping device, postpone to close described power intake valve more than 20 seconds, postpone more than 20 seconds (after treating that exhaust emissions brings out existing negative pressure), open described tail gas valve, the described gas pumping device of stopping transport again cuts out described desorb valve, opens described intake valve, in this process, opened the tail gas valve earlier and made outside air enter adsorbent bed, closed the desorb valve again, treated that the negative pressure on the top of adsorbent bed disappears, open intake valve again, the temperature of adsorbent bed is reduced near ambient temperature, and can not reduces the adsorption function of adsorbent bed, volatile species concentration can be not higher yet in the tail gas, and prolong the sorption cycle time, effectively reach the purpose of energy savings.
The technical process of described desorption procedure can also be carried out according to following process:
Open described steam valve, open described desorb valve, open described power intake valve, heat to adsorbent bed with steam, postpone to close described steam valve more than 1 minute, start described gas pumping device, postpone to close described power intake valve more than 20 seconds, postpone more than 20 seconds (after treating that exhaust emissions brings out existing negative pressure), open described tail gas valve, the described gas pumping device of stopping transport cuts out described desorb valve, opens described intake valve and enters described adsorption step.
Described desorption procedure adopts the beneficial effect of such scheme to be, in the starting stage of desorb, open described power intake valve, postpone more than 1 minute after, close described steam valve again, and start described gas pumping device, can effectively control the consumption of steam, satisfying under the prerequisite of desorption condition, greatly degree is saved the use of steam, in the steam of desorb volatile materials, it is extracted out by power gas and the acting in conjunction of gas pumping device fast in described adsorbent bed, raise the efficiency; Close described power gas valve and postpone (after treating that exhaust emissions brings out existing negative pressure) more than 20 seconds, opening described tail gas valve makes outside air enter adsorbent bed, the temperature of adsorbent bed is reduced near ambient temperature, further improve the adsorption function of adsorbent bed thus, volatile species concentration can be not higher yet in the tail gas, the described gas pumping device of stopping transport again cuts out described desorb valve, opens described intake valve and enters described adsorption step.
Adopt the present invention, utilize the device that reclaims volatile materials to reclaim the method for volatile materials, both realized the alternating temperature desorb, realized pressure-swing desorption again, realized refrigerating function simultaneously, also greatly improve adsorption efficiency and adsorption effect, more reduced the waste of volatile materials, played the beneficial effect of environmental protection simultaneously.
Description of drawings
Use the structural representation of the device of recovering volatile material with adsorption bed in Fig. 1 prior art;
Fig. 2 is that the present invention uses the device steam supply side of recovering volatile material with adsorption bed at last structural representation;
Fig. 3 be the present invention with the device steam supply side of recovering volatile material with adsorption bed under structural representation.
The specific embodiment
The technical scheme that device adopted with recovering volatile material with adsorption bed described in Fig. 1 the present invention is: as described in device comprise adsorbent bed 1, described adsorbent bed 1 inside is provided with adsorbent, the gaseous mixture injection end of described adsorbent bed 1 is connected with mist pipeline 2, desorb pipeline 8, mist in the described mist pipeline 2 is the gas that contains volatile materials, described mist pipeline 2 is provided with intake valve 3, described desorb pipeline 8 is provided with desorb valve 9, the steam supply side of described adsorbent bed 1 is connected with exhaust pipe 4, jet chimney 6, described exhaust pipe 4 is provided with tail gas valve 5, described jet chimney 6 is provided with steam valve 7, the steam supply side of described adsorbent bed 1 also is connected with power air inlet pipe 10, and described power air inlet pipe 10 is provided with power intake valve 11.
Optimize, described desorb pipeline 8 is provided with gas pumping device 12, and described gas pumping device 12 is located at the front or the back of described desorb valve 9, in actual applications, and the described gas pumping device 12 more back that are arranged on described desorb valve 9.
Power gas in the described power air inlet pipe 10 are that compressed air or nitrogen or inert gas or other are worth low gas than steam.The present invention can be as required, with the top of described adsorbent bed 1 as the steam supply side, as shown in Figure 1; Also can be with the bottom of described adsorbent bed 1 as the steam supply side, as shown in Figure 2.
The present invention utilizes described device with recovering volatile material with adsorption bed to reclaim the volatile materials that boiling point is lower than 100 ℃, as acetone (boiling point is 56.5 ℃), carrene (boiling point is 39.8 ℃), chloroform (boiling point is 61.2 ℃) or methyl ethyl ketone (boiling point is 79.6 ℃).
Given here embodiment is an example to reclaim carrene with adsorbent bed, given adsorbent equipment is vertical, but also can be by horizontal adsorbent bed and various adsorption tank, adsorption tanks, adsorption tower operation, for the installation site of orientation, the title of device, pipeline and mode, unimportant sorbent used, so long as smoke heating source and just can implement as separating with steam.
Embodiment 1:
The present invention comprises following two steps with the method that adsorbent bed reclaims carrene:
(1) adsorption step is opened intake valve 3, tail gas valve 5; Steam off valve 7, desorb valve 9;
(2) desorption procedure is opened steam valve 7, desorb valve 9; Close intake valve 3, tail gas valve 5.
The technical process of described desorption procedure is carried out in accordance with the following methods:
Open described steam valve 7, open described desorb valve 9, give adsorbent bed 1 heating, postpone more than 1 minute with steam, after the mist injection end temperature of described adsorbent bed 1 meets or exceeds 39.8 ℃, close described steam valve 7, open described power intake valve 11, postpone more than 20 seconds, close described power intake valve 11, close described desorb valve 9 again, open described tail gas valve 5 then, open described intake valve 3 and enter described adsorption step.
Embodiment 2:
The present invention comprises following two steps with the method that adsorbent bed reclaims carrene:
(1) adsorption step is opened intake valve 3, tail gas valve 5; Steam off valve 7, desorb valve 9;
(2) desorption procedure is opened steam valve 7, desorb valve 9; Close intake valve 3, tail gas valve 5.
The technical process of described desorption procedure is carried out in accordance with the following methods:
Open described steam valve 7, open described desorb valve 9, give adsorbent bed 1 heating with steam, postpone more than 1 minute, after the mist injection end temperature of adsorbent bed 1 meets or exceeds 39.8 ℃, close described steam valve 7, open described power intake valve 11, postpone to close described power intake valve 11 more than 20 seconds, start described gas pumping device 12, postpone more than 20 seconds, the described gas pumping device 12 of stopping transport cuts out described desorb valve 9 again, open described tail gas valve 5 then, open described intake valve 3 and enter described adsorption step.
Embodiment 3:
The present invention comprises following two steps with the method that adsorbent bed reclaims carrene:
(1) adsorption step is opened intake valve 3, tail gas valve 5; Steam off valve 7, desorb valve 9;
(2) desorption procedure is opened steam valve 7, desorb valve 9; Close intake valve 3, tail gas valve 5.
The technical process of described desorption procedure is carried out in accordance with the following methods:
Open described steam valve 7, open described desorb valve 9, give adsorbent bed 1 heating with steam, postpone more than 1 minute, after the mist injection end temperature of adsorbent bed 1 meets or exceeds 39.8 ℃, open described power intake valve 11, postpone more than 20 seconds, close described steam valve 7, postpone to close described power intake valve 11 more than 20 seconds, close described desorb valve 9 again, open described tail gas valve 5 then, open described intake valve 3 and enter described adsorption step.
Embodiment 4:
The present invention comprises following two steps with the method that adsorbent bed reclaims carrene:
(1) adsorption step is opened intake valve 3, tail gas valve 5; Steam off valve 7, desorb valve 9;
(2) desorption procedure is opened steam valve 7, desorb valve 9; Close intake valve 3, tail gas valve 5.
The technical process of described desorption procedure is carried out in accordance with the following methods:
Open described steam valve 7, open described desorb valve 9, give adsorbent bed 1 heating with steam, postpone more than 1 minute, after the mist injection end temperature of adsorbent bed 1 meets or exceeds 39.8 ℃, close described steam valve 7, open described power intake valve 11, start described gas pumping device 12, postpone more than 20 seconds, close described power intake valve 11, postpone more than 20 seconds, the described gas pumping device 12 of stopping transport cuts out described desorb valve 9 again, open described tail gas valve 5 then, open described intake valve 3 and enter described adsorption step.
Embodiment 5:
The present invention comprises following two steps with the method that adsorbent bed reclaims carrene:
(1) adsorption step is opened intake valve 3, tail gas valve 5; Steam off valve 7, desorb valve 9;
(2) desorption procedure is opened steam valve 7, desorb valve 9; Close intake valve 3, tail gas valve 5.
The technical process of described desorption procedure is carried out in accordance with the following methods:
Open described steam valve 7, open described desorb valve 9, open described power intake valve 11, start described gas pumping device 12, give adsorbent bed 1 heating with steam, postpone more than 1 minute, when the mist injection end temperature of adsorbent bed 1 meets or exceeds 39.8 ℃, close described steam valve 7, postpone more than 20 seconds, close described power intake valve 11, postpone more than 20 seconds, the described gas pumping device 12 of stopping transport cuts out described desorb valve 9 again, open described tail gas valve 5 then, open described intake valve 3 and enter described adsorption step.
Embodiment 6:
The present invention comprises following two steps with the method that adsorbent bed reclaims carrene:
(1) adsorption step is opened intake valve 3, tail gas valve 5; Steam off valve 7, desorb valve 9;
(2) desorption procedure is opened steam valve 7, desorb valve 9; Close intake valve 3, tail gas valve 5.
The technical process of described desorption procedure is carried out in accordance with the following methods:
Open described steam valve 7, open described desorb valve 9, give adsorbent bed 1 heating with steam, postpone more than 1 minute, when the mist injection end temperature of adsorbent bed 1 meets or exceeds 39.8 ℃, close described steam valve 7, open described power intake valve 11, start described gas pumping device 12, postpone to close described power intake valve 11 more than 20 seconds, postpone more than 20 seconds (after treating that exhaust emissions brings out existing negative pressure), open described tail gas valve 5, the described gas pumping device 12 of stoppage in transit, close described desorb valve 9, open described intake valve 3 and enter described adsorption step.
Embodiment 7:
The present invention comprises following two steps with the method that adsorbent bed reclaims carrene:
(1) adsorption step is opened intake valve 3, tail gas valve 5; Steam off valve 7, desorb valve 9;
(2) desorption procedure is opened steam valve 7, desorb valve 9; Close intake valve 3, tail gas valve 5.
The technical process of described desorption procedure is carried out in accordance with the following methods:
Open described steam valve 7, open described desorb valve 9, open described power intake valve 11, give adsorbent bed 1 heating with steam, postpone more than 1 minute, when the mist injection end temperature of adsorbent bed 1 meets or exceeds 39.8 ℃, close described steam valve 7, start described gas pumping device 12, postpone to close described power intake valve 11 more than 20 seconds, postpone more than 20 seconds (after treating that exhaust emissions brings out existing negative pressure), open described tail gas valve 5, the described gas pumping device 12 of stoppage in transit, close described desorb valve 9, open described intake valve 3 and enter described adsorption step.
The present invention can be widely used in the recovery field of chemical field, particularly volatile materials.
Claims (10)
1. device with recovering volatile material with adsorption bed, comprise adsorbent bed (1), described adsorbent bed (1) inside is provided with adsorbent, the gaseous mixture injection end of described adsorbent bed (1) is connected with mist pipeline (2), desorb pipeline (8), mist in the described mist pipeline (2) is the gas that contains volatile materials, described mist pipeline (2) is provided with intake valve (3), described desorb pipeline (8) is provided with desorb valve (9), the steam supply side of described adsorbent bed (1) is connected with exhaust pipe (4), jet chimney (6), described exhaust pipe (4) is provided with tail gas valve (5), described jet chimney (6) is provided with steam valve (7), it is characterized in that: the steam supply side of described adsorbent bed (1) also is connected with power air inlet pipe (10), and described power air inlet pipe (10) is provided with power intake valve (11).
2. the device with recovering volatile material with adsorption bed according to claim 1, it is characterized in that: described desorb pipeline (8) is provided with gas pumping device (12), and described gas pumping device (12) is located at the front or the back of described desorb valve (9).
3. the device with recovering volatile material with adsorption bed according to claim 1 and 2 is characterized in that: the power gas in the described power air inlet pipe (10) is that compressed air or nitrogen or inert gas or other are worth low gas than steam.
4. method of utilizing the described device of claim 1 to reclaim volatile materials, described method comprises following two steps:
(1) adsorption step: open described intake valve (3), described tail gas valve (5), close described steam valve (7), described desorb valve (9), make the gas communication that contains described volatile materials cross described adsorbent bed (1), described volatile materials is attracted on the adsorbent of described adsorbent bed (1), and residual gas is arranged to atmosphere by described exhaust pipe (4);
(2) desorption procedure: the described volatile materials that will be adsorbed on the described adsorbent bed (1) is upward reclaimed by the steam desorb from described adsorbent bed (1);
It is characterized in that described volatile materials is that boiling point is lower than 100 ℃ volatile materials, described desorption procedure is carried out according to following process:
Open described steam valve (7), open described desorb valve (9), give adsorbent bed (1) heating with steam, postpone to close described steam valve (7) more than 1 minute, open described power intake valve (11), postpone to close described power intake valve (11) more than 20 seconds, close described desorb valve (9) again, open described tail gas valve (5) then, open described intake valve (3) and enter described adsorption step.
5. method according to claim 4, it is characterized in that: described desorption procedure is carried out according to following process: open described steam valve (7), open described desorb valve (9), give adsorbent bed (1) heating with steam, postpone more than 1 minute, close described steam valve (7), open described power intake valve (11), postpone to close described power intake valve (11) more than 20 seconds, start described gas pumping device (12), postpone more than 20 seconds, the described gas pumping device (12) of stopping transport cuts out described desorb valve (9) again, open described tail gas valve (5) then, open described intake valve (3) and enter described adsorption step.
6. method of utilizing the described device of claim 1 to reclaim volatile materials, described method comprises following two steps:
(1) adsorption step: open described intake valve (3), described tail gas valve (5), close described steam valve (7), described desorb valve (9), make the gas communication that contains described volatile materials cross described adsorbent bed (1), described volatile materials is attracted on the adsorbent of described adsorbent bed (1), and residual gas is arranged to atmosphere by described exhaust pipe (4);
(2) desorption procedure: the described volatile materials that will be adsorbed on the described adsorbent bed (1) is upward reclaimed by the steam desorb from described adsorbent bed (1);
It is characterized in that described volatile materials is that boiling point is lower than 100 ℃ volatile materials, described desorption procedure is carried out according to following process:
Open described steam valve (7), open described desorb valve (9), give adsorbent bed (1) heating, postpone more than 1 minute with steam, open described power intake valve (11), postpone to close described steam valve (7) more than 20 seconds, postpone more than 20 seconds, close described power intake valve (11), close described desorb valve (9) again, open described tail gas valve (5) then, open described intake valve (3) and enter described adsorption step.
7. method of utilizing the described device of claim 2 to reclaim volatile materials, described method comprises following two steps:
(1) adsorption step: open described intake valve (3), described tail gas valve (5), close described steam valve (7), described desorb valve (9), make the gas communication that contains described volatile materials cross described adsorbent bed (1), described volatile materials is attracted on the adsorbent of described adsorbent bed (1), and residual gas is arranged to atmosphere by described exhaust pipe (4);
(2) desorption procedure: the described volatile materials that will be adsorbed on the described adsorbent bed (1) is upward reclaimed by the steam desorb from described adsorbent bed (1);
It is characterized in that described volatile materials is that boiling point is lower than 100 ℃ volatile materials, described desorption procedure is carried out according to following process:
Open described steam valve (7), open described desorb valve (9), give adsorbent bed (1) heating with steam, postpone to close described steam valve (7) more than 1 minute, open described power intake valve (11), start described gas pumping device (12), postpone to close described power intake valve (11) more than 20 seconds, postpone more than 20 seconds, the described gas pumping device (12) of stopping transport, close described desorb valve (9) again, open described tail gas valve (5) then, open described intake valve (3) and enter described adsorption step.
8. method of utilizing the described device of claim 2 to reclaim volatile materials, described method comprises following two steps:
(1) adsorption step: open described intake valve (3), described tail gas valve (5), close described steam valve (7), described desorb valve (9), make the gas communication that contains described volatile materials cross described adsorbent bed (1), described volatile materials is attracted on the adsorbent of described adsorbent bed (1), and residual gas is arranged to atmosphere by described exhaust pipe (4);
(2) desorption procedure: the described volatile materials that will be adsorbed on the described adsorbent bed (1) is upward reclaimed by the steam desorb from described adsorbent bed (1);
It is characterized in that described volatile materials is that boiling point is lower than 100 ℃ volatile materials, described desorption procedure is carried out according to following process:
Open described steam valve (7), open described desorb valve (9), open described power intake valve (11), start described gas pumping device (12), give adsorbent bed (1) heating, postpone more than 1 minute with steam, close described steam valve (7), postpone to close described power intake valve (11) more than 20 seconds, postpone more than 20 seconds, the described gas pumping device (12) of stopping transport, close described desorb valve (9) again, open described tail gas valve (5) then, open described intake valve (3) and enter described adsorption step.
9. method of utilizing the described device of claim 2 to reclaim volatile materials, described method comprises following two steps:
(1) adsorption step: open described intake valve (3), described tail gas valve (5), close described steam valve (7), described desorb valve (9), make the gas communication that contains described volatile materials cross described adsorbent bed (1), described volatile materials is attracted on the adsorbent of described adsorbent bed (1), and residual gas is arranged to atmosphere by described exhaust pipe (4);
(2) desorption procedure: the described volatile materials that will be adsorbed on the described adsorbent bed (1) is upward reclaimed by the steam desorb from described adsorbent bed (1);
It is characterized in that described volatile materials is that boiling point is lower than 100 ℃ volatile materials, described desorption procedure is carried out according to following process:
Open described steam valve (7), open described desorb valve (9), give adsorbent bed (1) heating with steam, postpone more than 1 minute, close described steam valve (7), open described power intake valve (11), start described gas pumping device (12), postpone more than 20 seconds, close described power intake valve (11), postpone more than 20 seconds, open described tail gas valve (5), stoppage in transit described gas pumping device (12), close described desorb valve (9), open described intake valve (3) and enter described adsorption step.
10. method of utilizing the described device of claim 2 to reclaim volatile materials, described method comprises following two steps:
(1) adsorption step: open described intake valve (3), described tail gas valve (5), close described steam valve (7), described desorb valve (9), make the gas communication that contains described volatile materials cross described adsorbent bed (1), described volatile materials is attracted on the adsorbent of described adsorbent bed (1), and residual gas is arranged to atmosphere by described exhaust pipe (4);
(2) desorption procedure: the described volatile materials that will be adsorbed on the described adsorbent bed (1) is upward reclaimed by the steam desorb from described adsorbent bed (1);
It is characterized in that described volatile materials is that boiling point is lower than 100 ℃ volatile materials, described desorption procedure is carried out according to following process:
Open described steam valve (7), open described desorb valve (9), open described power intake valve (11), give adsorbent bed (1) heating with steam, postpone to close described steam valve (7) more than 1 minute, start described gas pumping device (12), postpone more than 20 seconds, close described power intake valve (11), postpone more than 20 seconds, open described tail gas valve (5), stoppage in transit described gas pumping device (12), close described desorb valve (9), open described intake valve (3) and enter described adsorption step.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458185B1 (en) * | 2001-03-29 | 2002-10-01 | Celanese Acetate Llc | Recovery of volatile organic compounds from carbon adsorber beds |
| CN101099914A (en) * | 2007-06-15 | 2008-01-09 | 刘向建 | Method for recovering volatile material with adsorption bed |
| CN101199913A (en) * | 2006-12-11 | 2008-06-18 | 蔡铭昇 | Absorption processing system of volatile organic compounds |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458185B1 (en) * | 2001-03-29 | 2002-10-01 | Celanese Acetate Llc | Recovery of volatile organic compounds from carbon adsorber beds |
| CN101199913A (en) * | 2006-12-11 | 2008-06-18 | 蔡铭昇 | Absorption processing system of volatile organic compounds |
| CN101099914A (en) * | 2007-06-15 | 2008-01-09 | 刘向建 | Method for recovering volatile material with adsorption bed |
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