CN104353403B - A kind of realize the system that energy recovery couples with continuous coke cleaning - Google Patents
A kind of realize the system that energy recovery couples with continuous coke cleaning Download PDFInfo
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- CN104353403B CN104353403B CN201410563522.2A CN201410563522A CN104353403B CN 104353403 B CN104353403 B CN 104353403B CN 201410563522 A CN201410563522 A CN 201410563522A CN 104353403 B CN104353403 B CN 104353403B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 31
- 239000000571 coke Substances 0.000 title claims abstract description 31
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 239000000498 cooling water Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000004939 coking Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 239000002243 precursor Substances 0.000 claims description 2
- 239000000376 reactant Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 229910021642 ultra pure water Inorganic materials 0.000 description 4
- 239000012498 ultrapure water Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ORTYMGHCFWKXHO-UHFFFAOYSA-N diethadione Chemical compound CCC1(CC)COC(=O)NC1=O ORTYMGHCFWKXHO-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0871—Heating or cooling of the reactor
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0894—Processes carried out in the presence of a plasma
- B01J2219/0898—Hot plasma
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coke Industry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses and a kind of realize the system that energy recovery couples with continuous coke cleaning, including booster pump, thermal plasma torch, reactor, air relief valve, gas-liquid separator, cyclone separator and demister, and the anode of thermal plasma torch and reactor ground connection, make the anode of thermal plasma torch and reactor directly soften water as cooling water using plain cylindrical furnace by ground connection, significantly reduce production cost；The technique that the energy recovery of described system couples with continuous coke cleaning is to be used for producing steam by the heat that thermal plasma torch and reactor wall lose, and steam is used for the continuous coke-removing procedure of reactor, on the one hand the heat of major part loss can be reclaimed, solve the economy problems producing steam, on the other hand the heat of recovery is further utilized, the problem solving plasma reactor inwall coking.
Description
Technical field
The present invention relates to energy recovery and field of comprehensive utilization, particularly to one realize energy recovery with
The system of coke cleaning coupling continuously.
Background technology
The heavy particle of hot plasma and lepton are in same energy level, and temperature is up to 3 × 103-3×104K,
Substantially achieve thermodynamic equilibrium state.In recent years, along with going deep into of theoretical and applied research, heat etc.
Gas ions technology has become as an active interdisciplinary field, high-power, long-life heat plasma
Body equipment technology is the most increasingly mature, and the industrialization for heat plasma technology is laid a good foundation.Based on heat
Plasma high-temperature, Gao Han, rich in active particle, the feature that beneficially chemical reaction occurs, heat etc.
Gas ions technology is prepared in synthesis gas, acetylene, ethylene, hydrogen, white carbon black, hydrocyanic acid and nano material
Etc. aspect show huge potentiality.
Torch and reactor are the key equipments of application plasma technique, and its internal temperature is up to thousands of degree
Degree the most up to ten thousand, in order to prevent torch and reactor from being burnt by high temperature, generally use the mode of water-cooled to torch
Lower the temperature with the wall of reactor.The cooling heat taken away from wall of water and torch, the scale of reactor,
Structure and materials etc. are relevant, typically constitute from the 10%-40% of total input energy.At present, the heat of these losses
Amount is only used for producing hot water, and energy grade is the highest, economic worth is low.Accordingly, it would be desirable to it is more reasonable
Method realize the recycling of this portion of energy.
The problem that often there is coking in hot plasma course of reaction, needs to use suitable means to carry out clearly
Jiao, could maintain the continuous operation of reactor.Steam it is passed through so that it is exist with coking material in reactor
It is a kind of effective coke cleaning method that fast reaction occurs in hot plasma.If can be by torch and reactor
The heat of wall loss is used for producing the higher steam of energy grade, and uses it for the coke cleaning of reactor
Process, will significantly improve the energy utilization efficiency of torch and reactor, is conducive to improving hot plasma anti-
Answer the economic feasibility of technology, promote this technological industrialization process.
Summary of the invention
The invention provides and a kind of realize the system that energy recovery couples with continuous coke cleaning, by heat etc.
The heat of gas ions torch and the loss of reactor wall is used for producing steam, and is used for reacting by steam
The continuous coke-removing procedure of device, can significantly improve energy utilization efficiency, improves hot plasma skill
Art economic benefit.
The invention discloses and a kind of realize the system that energy recovery couples with continuous coke cleaning, described system
System includes booster pump, thermal plasma torch, reactor, air relief valve, gas-liquid separator, whirlwind
Separator and demister；
Described thermal plasma torch and reactor are respectively equipped with the entrance and exit of cooling water, increase
Press pump entrance with the cooling water of thermal plasma torch and reactor respectively connects, hot plasma
Torch connects with air relief valve after merging with the coolant outlet of reactor；
Described air relief valve is sequentially connected with gas-liquid separator, cyclone separator and demister；
The anode of described thermal plasma torch and reactor ground connection respectively；
The technique that the energy recovery of described system couples with continuous coke cleaning comprises the steps:
(1) after cooling water intensified pump supercharging, respectively by thermal plasma torch and reactor
Cooling water inlet enter, discharge from respective coolant outlet after heat absorption, discharge for water or
Steam water interface；
(2) step (1) is discharged water or steam water interface merge, through air relief valve vacuum flashing
Rear entrance gas-liquid separator, the steam being entrained with drop flows out from gas-liquid separator top, successively
By cyclone separator and demister, removing the drop carried secretly, the steam of isolated is logical to be returned to
In reactor, under the hot conditions that hot plasma produces, steam and the knot of reactor wall
Burnt thing has reacted coke cleaning, it is achieved being carried out continuously of heat plasma precursor reactant；
(3), in step (2), the water removed from steam leads to return-air liquid/gas separator, from bottom
Discharging, being mixed with cooling water is passed through booster pump realization recycling.
Thermal plasma torch includes negative electrode and anode, is the place producing hot plasma, at torch
Negative electrode and anode between there is higher electric potential difference.In order to ensure that torch and reactor run safety,
Negative electrode and anode in short circuit should be avoided, it is therefore desirable to use the ultra-pure water of low conductivity as negative electrode and
The cooling water of anode.Some heat plasma body device is directly using the anode of torch as the one of reactor
Part, therefore reactor is also charged, needs also exist for ultra-pure water as cooling water.Due to
Ultra-pure water price is high, directly produces steam with it and is not economically feasible.The present invention is by torch
Anode and reactor ground connection so that it is electromotive force is zero, and now negative electrode is negative potential.Thus only
Having negative electrode to need to do cooling water, anode and reactor with ultra-pure water then can be directly with plain cylindrical furnace
With softening water as cooling water.Existing research shows, the thermal loss of negative electrode is only total amount of heat
Loss less than 5%, as long as reclaiming torch anode and reactor part just can reclaim more than 95%
Thermal loss.The present invention passes through torch anode and reactor ground connection, both can reclaim major part loss
Heat, again solve produce steam economy problems.
The negative electrode of thermal plasma torch and anode are respectively equipped with cooling system, but heretofore described
System only include the cooling system of thermal plasma torch anode, and thermal plasma torch negative electrode
Cooling system separately becomes an individual system, is not comprised in and of the present invention realizes energy recovery and company
In the system of continuous coke cleaning coupling.
Cooling water enters torch anode respectively from the cooling water inlet of thermal plasma torch and reactor
With the water-cooling channel of reactor, by the high-temperature medium heat exchange in reactor wall and reactor
Temperature raises.The pressure of cooling water, by booster pump control, cools down water pressure ＞ after pump supercharging
0.5MPa；In order to obtain the low pressure steam needed for coke cleaning, take into account the resistance to pressure energy of equipment simultaneously
Power, cooling water pressure after pump supercharging is 2～10MPa.In order to improve the yield of steam,
Cooling water outlet temperature is controlled in water saturation temperature.
Intensified, heat after cooling water be water or steam water interface, by air relief valve rear section
Vaporization produces steam, and steam separates in gas-liquid separator with water.Steam is still carried secretly big
The drop of amount, removes bigger drop by cyclone separator, and demister removes less drop,
Obtaining steam, described steam may be used for reactor coke cleaning or other purposes, the pressure of steam
By air relief valve control.
Described steam is led to back by the present invention reactor is used for coke cleaning.In order to not affect reaction
Being carried out continuously of reaction in device, as preferably, the quantity of steam being passed through is for being passed through in reactor always gas
The 0.1～10vol% of the scale of construction, is passed through the amount of steam by change, can regulate coke cleaning reaction
Speed, when above-mentioned preferred steam consumption, can either meet the requirement to coke cleaning, the most unlikely
In reaction is produced too much influence.
In the present invention, steam is passed through along reactor wall so that it is be primarily present in the attached of reactor wall
Closely, on the one hand reduce the impact on reaction, be on the other hand more conducive to the removing of coking material.Steam
The mode being passed through has two kinds, and one is to be axially passed through in reactor along reactor wall, another
Planting is to be tangentially passed through in reactor along reactor wall.Preferably steam is to be tangentially passed through reactor,
Make due to the effect of centrifugal force steam be close to the inwall of reactor, coke cleaning can be reduced further
The gas impact on reaction.
Compared with prior art, present invention have the advantage that
(1) present invention is by by the anode of torch and reactor ground connection so that anode and reactor
Production cost can be significantly reduced directly using plain cylindrical furnace softening water as cooling water；
(2) energy recovery is coupled by the present invention with continuous coke cleaning, will change thermogenetic steam
For the coke cleaning of plasma reactor, on the one hand can reclaim the heat of major part loss, solve
Determine and produced the economy problems of steam, on the other hand the heat of recovery has further been utilized,
The problem solving plasma reactor inwall coking.
Accompanying drawing explanation
Fig. 1 is that the technological process realizing the system that energy recovery couples with continuous coke cleaning of the present invention is shown
It is intended to；
In figure, 1-plasma torch；2-reactor；3-plasma jet；4-plasma
Torch cooling water inlet；5-reactor cooled water inlet；6-plasma torch coolant outlet；7-
Reactor cooled water out；8-booster pump；9-air relief valve；10-gas-liquid separator；11-whirlwind
Separator；12-demister；13-steam channel.
Detailed description of the invention
The technological process realizing the system that energy recovery couples with continuous coke cleaning disclosed by the invention
Schematic diagram as it is shown in figure 1, system include booster pump 8, thermal plasma torch 1, reactor 2,
Air relief valve 9, gas-liquid separator 10, cyclone separator 11 and demister 12.
Thermal plasma torch 1 is provided with entrance 4 and the outlet 6 of cooling water, and reactor 2 is provided with cold
But the entrance 5 of water and outlet 7, the anode of thermal plasma torch and reactor ground connection respectively.
Booster pump 8 entrance with the cooling water of thermal plasma torch and reactor respectively connect, hot
Plasma torch connects with air relief valve 9 after merging with the coolant outlet of reactor.
Air relief valve 9 connects successively with gas-liquid separator 10, cyclone separator 11 and demister 12
Logical.
The plasma jet 3 that thermal plasma torch 1 produces enters in reactor 2, produces height
Temperature, Gao Han, reaction atmosphere rich in active particle.Cooling water from booster pump 8 leads to respectively
Cross plasma torch cooling water inlet 4 and reactor cooled water inlet 5 enters thermal plasma torch
1 and reactor 2, then separately flow into the water-cooling channel in thermal plasma torch 1 and reactor 2,
Elevated the temperature with the high-temperature medium heat exchange in thermal plasma torch 1 and reactor 2 by wall,
In control thermal plasma torch, the maximum temperature cooling down water after heat exchange is thermal plasma torch
Water saturation temperature that at coolant outlet 6, pressure is corresponding, cooling water after heat exchange in reactor
Maximum temperature is the water saturation temperature that at the coolant outlet 7 of reactor, pressure is corresponding.
Supercharging, heat after water or steam water interface from the coolant outlet 6 of thermal plasma torch,
The coolant outlet 7 of reactor flows out, by air relief valve 9 vacuum flashing after merging, by control
Flashing pressure processed can obtain the steam product of different temperatures, and the steam water interface that flash distillation produces enters
Enter in gas-liquid separator 10 and separate.Entrainment of the steam of a large amount of drops from gas-liquid separator
The top of 10 is flowed out, and enters cyclone separator 11 and removes bigger drop, passes through demister
12 remove droplet, it is thus achieved that steam product.The some vapor obtained leads to back through steam channel 13
Reactor 2, and along the tangential entrance of reactor 2, react with the coking material of inwall and reach coke cleaning
Purpose.
Gas-liquid separator is flowed into by gravity through cyclone separator 11, the isolated water of demister 12
In 10, then it is mixed with supplementary cooling water and is passed through booster pump 8, supplementing of experiment cooling water
With recycle.
The direction of arrow be given in figure represents the circulating direction of cooling water/steam.
The technology of the present invention can reclaim the heat that major part cooling water is taken away, and obtains the steaming of Gao Pin
Vapour, it is achieved coke cleaning steam self-sufficient.Employing the technology of the present invention at most can be with energy-conservation 30%
Above.
Claims (5)
1. one kind realizes the system that energy recovery couples with continuous coke cleaning, it is characterised in that described system
System includes booster pump, thermal plasma torch, reactor, air relief valve, gas-liquid separator, cyclonic separation
Device and demister；
Described thermal plasma torch and reactor are respectively equipped with the entrance and exit of cooling water, booster pump
Entrance with the cooling water of thermal plasma torch and reactor connects respectively, thermal plasma torch and reaction
The coolant outlet of device connects with air relief valve after merging；
Described air relief valve is sequentially connected with gas-liquid separator, cyclone separator and demister；
The anode of described thermal plasma torch and reactor ground connection respectively；
The technique that the energy recovery of described system couples with continuous coke cleaning comprises the steps:
(1) after cooling water intensified pump supercharging, cold by thermal plasma torch and reactor respectively
But water inlet enters, and discharges from respective coolant outlet after heat absorption, discharge for water or steam-water mixing
Thing；
(2) step (1) is discharged water or steam water interface merge, laggard through air relief valve vacuum flashing
Entering gas-liquid separator, the steam being entrained with drop flows out from gas-liquid separator top, passes sequentially through whirlwind
Separator and demister, remove the drop carried secretly, and the steam of isolated is logical to be returned in reactor,
Under the hot conditions that hot plasma produces, steam has reacted with the coking material of reactor wall
Coke cleaning, it is achieved being carried out continuously of heat plasma precursor reactant；
Described steam along reactor wall to be tangentially passed through；
(3) in step (2), the water removed from steam returns gas-liquid separator, discharges from bottom,
It is mixed with cooling water and is passed through booster pump realization recycling.
The most according to claim 1 realize the system that energy recovery couples with continuous coke cleaning, its
Being characterised by, described cooling water is for softening water, the pressure ＞ 0.5MPa after intensified pump supercharging.
The most according to claim 2 realize the system that energy recovery couples with continuous coke cleaning, its
Being characterised by, the described pressure after cooling water intensified pump pump supercharging is 2～10MPa.
The most according to claim 3 realize the system that energy recovery couples with continuous coke cleaning, its
Being characterised by, the outlet temperature of described cooling water controls in water saturation temperature.
The most according to claim 1 realize the system that energy recovery couples with continuous coke cleaning, its
Be characterised by, described be passed through quantity of steam in reactor be passed through reactor in total gas flow 0.1～
10vol%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410563522.2A CN104353403B (en) | 2014-10-21 | 2014-10-21 | A kind of realize the system that energy recovery couples with continuous coke cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410563522.2A CN104353403B (en) | 2014-10-21 | 2014-10-21 | A kind of realize the system that energy recovery couples with continuous coke cleaning |
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| Publication Number | Publication Date |
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| CN104353403A CN104353403A (en) | 2015-02-18 |
| CN104353403B true CN104353403B (en) | 2016-08-17 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101929423B1 (en) * | 2017-03-14 | 2019-03-14 | 주식회사 코어밸런스 | A plasma ionization generator device |
| CN110918026B (en) * | 2019-11-14 | 2022-08-26 | 新疆粤和泰化工科技有限公司 | Coal-to-acetylene plasma reactor with coking inhibition and on-line coke cleaning functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102871A (en) * | 1986-04-16 | 1987-11-18 | 于利奇核子研究设备公司 | The method for catalytic production of methane and the methanator that contain the synthetic gas of carbon monoxide, carbonic acid gas and hydrogen |
| CN1648218A (en) * | 2005-01-05 | 2005-08-03 | 太原理工大学 | Plasma coal gasifying process and device |
| CN202337740U (en) * | 2011-11-06 | 2012-07-18 | 新疆兵团现代绿色氯碱化工工程研究中心(有限公司) | Device for cleaning carbon deposition by utilizing H2O in pyrocarbon conversion reaction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001137696A (en) * | 1999-11-15 | 2001-05-22 | Canon Inc | Plasma reactor, plasma treating method and cooling method utilizing plasma reaction |
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2014
- 2014-10-21 CN CN201410563522.2A patent/CN104353403B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102871A (en) * | 1986-04-16 | 1987-11-18 | 于利奇核子研究设备公司 | The method for catalytic production of methane and the methanator that contain the synthetic gas of carbon monoxide, carbonic acid gas and hydrogen |
| CN1648218A (en) * | 2005-01-05 | 2005-08-03 | 太原理工大学 | Plasma coal gasifying process and device |
| CN202337740U (en) * | 2011-11-06 | 2012-07-18 | 新疆兵团现代绿色氯碱化工工程研究中心(有限公司) | Device for cleaning carbon deposition by utilizing H2O in pyrocarbon conversion reaction |
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