CN205603621U - Deoxidation device of converter coal gas - Google Patents
Deoxidation device of converter coal gas Download PDFInfo
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- CN205603621U CN205603621U CN201620412051.XU CN201620412051U CN205603621U CN 205603621 U CN205603621 U CN 205603621U CN 201620412051 U CN201620412051 U CN 201620412051U CN 205603621 U CN205603621 U CN 205603621U
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- degasifier
- converter
- coal gas
- gas
- pipeline
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Abstract
The utility model provides a deoxidation device of converter coal gas, its includes at least one dust filter unit, the air supply is connected through inlet piping to its import of, sets up a flow control control valve among this inlet piping, the degasifier evenly sets up a plurality of electric heater in it to pack the copper -plated nonrust steel ball in surface, the gas feed of degasifier connects dust filter unit's export, thermodetector, power output controller are respectively with electric heater electric connection, air cooler, its entrance point pass through the gas outlet of pipe connection degasifier, set up first oxygen assay appearance and the 2nd flow control control valve in this pipeline, the fermentation system is connected to its exit end, a logical operation ware is respectively with an oxygen analyzer, first, the 2nd flow control control valve electric connection, the 2nd logical operation ware is respectively with thermodetector, power output controller electric connection. This deoxidation device design is simple, the economical rationality, and the lower energy consumption of ability ground is with the oxygen desorption in the converter coal gas to the requirement of satisfying the zymotechnique.
Description
Technical field
This utility model relates to the deoxy technology field of gas, is specifically related to the deoxidation of a kind of coal gas of converter
Method, is more particularly to micro amount of oxygen in a kind of coal gas of converter raw materials used to microbiological anaerobic fermentation technology
The removing means of gas.
Background technology
Steel mill's coal gas of converter will be through electric precipitation workshop section before recovery, therefore in view of reclaiming safety, and control
In coal gas of converter processed, oxygen content index is less than 1%.In domestic Ge great steel mill coal gas of converter, oxygen contains
Amount is universal between 0.2～0.8%.The general service of coal gas of converter is generating or does other fuel, because of
This, the most do not do deoxidation treatment.
With steel mill's coal gas of converter as raw material, use microbiological anaerobic fermentation technique produce ethanol, butanol,
The chemicals such as acetic acid are the most popular technology, pass through lab scale, pilot scale checking, just
Implementing commercialization.Oxygen content in steel mill's coal gas of converter is required not by microbiological anaerobic fermentation technique
It is particularly harsh, fermentation requirement can be met less than 200ppm.But there is presently no report about micro-
The method of deoxidation of steel mill's coal gas of converter or device in bio anaerobic fermentation technology.
Current deoxidization technique, device are concentrated mainly in petrochemical industry and purify and coalification alkene is refined
The deoxidation of synthesis gas in work, it is desirable to after deoxidation, oxygen content is less than 10ppm, even 1ppm.Deoxidation
The core of device be deoxidizer and according to processed process gas the degasifier of unique design.Both at home and abroad
Research about deoxidizer is the most, and deoxidizer is broadly divided into two kinds: noble metal deoxidizer and non-noble
Metallic deoxidizer.Deoxidization process mainly has two kinds: using platinum and palladium noble metal is urging of catalyst
Change hydrogenation method；Using platinum, palladium noble metal or the base metal such as copper, manganese is the chemical absorption method of deoxidizer.
Wherein, the preparation cost of noble metal deoxidizer is the highest, so, catalytic hydrogenation method and employing
Noble metal is that the chemical absorption method of deoxidizer is relatively suitable for the technique the highest for deoxidation required precision, and
To microbiological anaerobic fermentation technology seems the most economical and the most practical for the deoxidation of raw material coal gas of converter.Again
Containing a small amount of sulfide in the unstripped gas that the device for deoxidizing of person, petrochemical industry and Coal Chemical Industry processes, due to
Noble metal deoxidizer not resistant to sulfur, is easily poisoned, loses activity, and therefore, unstripped gas enters device for deoxidizing
Before will be through desulfurizing and purifying process.
Traditional chemical absorption process uses the base metal deoxidizer such as copper, manganese, is usually base metal
Even load is prepared on the carrier such as molecular sieve or aluminium sesquioxide.This deoxidizer is mainly with copper, manganese
For active component, coprecipitation produces, will active ingredient copper, manganese with vehicle component aluminum and silicon etc. altogether
Preparing through roasting aftershaping after precipitation, this deoxidizer production technology is the most more complicated, and cost is the highest.
Summary of the invention
The purpose of this utility model is to provide the device for deoxidizing of a kind of coal gas of converter, can take off economically
Except the oxygen in coal gas of converter, the oxygen content in coal gas of converter is reduced to meet microbiological anaerobic and sends out
In the requirement of ferment technique, and this method of deoxidation, deoxidizer preparation used is easily, and low cost can make continuously
With, it is not necessary to periodically reducing/regenerating.
For reaching above-mentioned purpose, the technical solution of the utility model is:
A kind of method of deoxidation of coal gas of converter, it comprises the steps: coal gas of converter is carried out dedusting,
Dust content ＜ 5mg/Nm in coal gas of converter after dedusting3；Coal gas of converter after dedusting is sent into deoxidation
Device, fills the stainless steel ball of copper coating in degasifier, in control degasifier, temperature is 150～300 DEG C,
In coal gas of converter after deoxidation, oxygen content is less than 200ppm；By the coal gas of converter air cooling after deoxidation extremely
Room temperature, is transported to microbiological anaerobic fermentation system and carries out anaerobic fermentation.
Further, the coal gas of converter after described dedusting first sends into compressor compresses before entering degasifier,
Coal gas of converter pressure ＜ 8bar (G) after compression, then the coal gas of converter after compression is transported to degasifier.
Coal gas of converter described in the utility model includes following composition, with volume percent: oxygen
0.2～0.8%, dust ＜ 10mg/Nm3, carbon monoxide 48～52%, hydrogen 1～2%, nitrogen 25～28%,
Carbon dioxide 18～20%.
Coal gas of converter is sent into compressor before deoxidation and is compressed by this utility model, is compressed to fermentation work
Pressure required for skill, not only meets the requirement of subsequent fermentation technique, also improves in coal gas of converter
The dividing potential drop of oxygen, makes coal gas of converter improve oxygen molecule and deoxidizer stainless steel ball after entering degasifier
The contact probability of copper coating, thus improve deoxidation effect.
Degasifier is previously heated to desired reaction temperature by this utility model, and coal gas of converter enters degasifier
In, reacting generation copper oxide at the surface of copper facing stainless steel ball, oxygen and copper, oxygen is taken off
Remove.Meanwhile, carbon monoxide and copper oxide in coal gas of converter at high temperature carry out reduction reaction, generate
Copper and carbon dioxide, so, deoxidizer is capable of on-line regeneration, will not be lossy.Concrete reaction
Equation is:
Deoxidation: Cu+O2→CuO；
Regeneration: CuO+CO → Cu+CO2。
Tradition deoxidizer, such as noble metal deoxidizer and base metal load class deoxidizers etc., inside it
Loose porous, gas component by diffuse in hole with metal generation deoxygenation, but gas group
Particulate matter in Fen can block deoxidizer internal gutter, and blocked duct would become hard to be dredged, base
Originally deoxidation is lost.Therefore, the deoxidation effect of tradition deoxidizer is the best, longtime running, deoxidizer
Need the most thoroughly to change.Although coal gas of converter described in the utility model first passes through dedusting, but still has big
Measure the trickleest granule.If using tradition deoxidizer, these trickle granules also result in deoxidation
Agent internal gutter blocks.To this end, a kind of novel deoxidizer for use of this utility model specialized designs, use table
The stainless steel ball of face copper plate is carried out on the thin copper layer of surface as deoxidizer, deoxygenation, degasifier
Internal bigger gas flow rate can take away the granule on stainless steel ball layers of copper surface, it is to avoid granule deposits,
Layers of copper surface contacts with oxygen well, it is not necessary to change.
Additionally, the concrete preparation process of deoxidizer of the present utility model is for be immersed in molten copper by stainless steel ball
In liquid, after stainless steel ball surface covers one layer of thin copper liquid, through natural cooling, obtain plated surface thin
The stainless steel ball of layer copper, preparation process is simple, and is not required to use fine copper, and preparation cost is low.
The device for deoxidizing of coal gas of converter described in the utility model, it includes, at least one dust filter unit,
Arranging import and export on it, wherein, import connects coal gas of converter source of the gas, this import by inlet pipeline
Pipeline arranges first flow adjusting control valve；Degasifier, is a tank structure, its upper and lower setting
Gas outlet, gas feed；Some electric heaters, described degasifier it is uniformly arranged in described degasifier
The internal stainless steel ball filling copper coating；The gas feed of described degasifier connects described by pipeline
The outlet of dust filter unit；Temperature detector, power output controller, respectively with the electricity in degasifier
Heater is electrically connected with；Air cooler, its entrance point connects the gas outlet of described degasifier by pipeline,
This pipeline arranges the first gas analyzer for O2 and second flow adjusting control valve；Its port of export passes through pipeline
Connect microbiological anaerobic fermentation procedure；First logical-arithmetic unit, described first oxygen analyzer, first,
Second flow adjusting control valve is electrically connected with the first logical-arithmetic unit；Second logical-arithmetic unit, institute
State temperature detector, power output controller is electrically connected with the second logical-arithmetic unit.
Further, the inlet pipeline being connected with described dust filter unit import arranges the second oxygen analysis
Instrument, described second oxygen analyzer is electrically connected with described first logical-arithmetic unit.
The inlet pipeline being connected with described dust filter unit import arranges flow meters.
This utility model also includes at least one pressure reduction display, and it is arranged in parallel in described dust-filtering
The import and export end of device.
Preferably, described dust filter unit, described pressure reduction display are respectively provided with two, form one and open one
Standby configuration.
Also, this utility model also includes a compressor, its entrance point connects described dust mistake by pipeline
The outlet of filter；Its port of export connects the gas feed of described degasifier by pipeline.
Preferably, described compressor is piston compressor or helical-lobe compressor etc..
Again, described electric heater is vertically installed in described degasifier inner bottom part.
This utility model utilize dust filter unit by the dust content in coal gas of converter from about
10mg/Nm3Drop to less than 5mg/Nm3；Then the coal gas of converter after dedusting is sent into compressor compresses
To pressure less than 8bar (G)；Coal gas of converter after compression enters degasifier, is provided with all bottom degasifier
The stainless of plated surface thin copper layer is filled in the space of the electric heater of even distribution, electric heater and chamber wall
Steel ball, utilizes electric heater to control in degasifier temperature 150～300 DEG C, after deoxidation, in coal gas of converter
Oxygen content drops to, less than 200ppm, meet the requirement of fermentation technology from 0.2-1%；Turning after deoxidation
Producer gas enters cooler, and cooler utilizes normal temperature air to cool down, and is cooled down by the coal gas of converter after deoxidation
To room temperature；The microbiological anaerobic fermentation procedure in the coal gas of converter feeding downstream after cooling carries out anaerobism and sends out
Ferment.
The oxygen content parameter feedback that first, second oxygen analyzer is detected by this utility model is to first
Logical-arithmetic unit, the first logical-arithmetic unit controls first, second according to these oxygen content parameter signals
Flow regulating and controlling valve, and then control enter the coal gas of converter amount of degasifier and guarantee to export degasifier
In coal gas of converter, oxygen content is qualified；Temperature signal is fed back to the second logical operations by described temperature detector
Device, the second logical-arithmetic unit controls the electrical heating merit of power output controller according to this temperature parameter signal
Rate exports, it is achieved steady and continuous accurate temperature controlling, can effectively remove the trace oxygen in coal gas of converter, protects
Hinder the requirement to oxygen content index of the follow-up anaerobic ferment process.Device for deoxidizing described in the utility model is same
Sample is applicable to the deoxidation of blast furnace gas.
The beneficial effects of the utility model:
This utility model is according to the requirement to coal gas of converter of the microbiological anaerobic fermentation technology, in conjunction with converter coal
Gas is contained within the particularity of the atmospheric CO of dust and reproducibility, takes first Chalk-dust filtering, then send
Entering deoxidation in degasifier, the deoxidizer in degasifier is that the deoxidation for coal gas of converter requires and uniqueness sets
Meter, i.e. in one layer of thin layers of copper of stainless steel ball plated surface, utilizes copper and oxygen reaction to generate copper oxide
Principle consumes oxygen, thus reaches the purpose of deoxidation, the most efficiently, then utilizes in coal gas of converter and contains
Copper oxide is reduced into the principle of copper by a large amount of carbon monoxides having, and on-line regeneration obtains new deoxidizer,
Realize the purpose that deoxidizer uses continuously.
This utility model uses the copper plate on stainless steel ball surface as deoxidizer, prepares simple and easy to get,
Low price, and it is prone to on-line regeneration, deoxidation energy consumption is low, once invests little.
Method of deoxidation provided by the utility model and device can reasonably, relatively low energy consumption ground is by converter
Oxygen in coal gas is removed to meet microbiological anaerobic fermentation technology requirement.
Accompanying drawing explanation
Fig. 1 is the device for deoxidizing structural representation of this utility model embodiment.
Fig. 2 is the generalized section of degasifier in this utility model embodiment.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described further.
Seeing Fig. 1-Fig. 2, the device for deoxidizing of coal gas of converter described in the utility model, it includes, two
Dust filter unit 1,1 ', it is arranged import 101,101 ', outlet 102,102 ', wherein,
Import 101,101 ' connects coal gas of converter air source A by inlet pipeline, arranges the in this inlet pipeline
One flow regulating and controlling valve 2；Two pressure reduction display 3,3 ', it is arranged in parallel in dust filter unit
1, the import 101,101 ' of 1 ' is held, is exported 102,102 ' ends；Compressor 4, its entrance point leads to
Piping connects the outlet 102,102 ' of described dust filter unit 1,1 '；Degasifier 5, is a tank
Body structure, it is upper and lower arranges gas outlet 501, gas feed 502；In described degasifier 5 all
Even some electric heaters 6 are set；The internal stainless steel ball 7 filling copper coating of described degasifier 5；
The gas feed 502 of described degasifier 5 connects the port of export of described compressor 4 by pipeline；Temperature
Detector 8, power output controller 9, be electrically connected with the electric heater 6 in degasifier 5 respectively；
Air cooler 10, its entrance point connects the gas outlet 501 of described degasifier 5, this pipeline by pipeline
In the first gas analyzer for O2 11 and second flow adjusting control valve 2 ' are set；Its port of export passes through pipeline
Connect microbiological anaerobic fermentation system B；First logical-arithmetic unit 12, described first oxygen analyzer 11,
First, second flow regulating and controlling valve 2,2 ', is electrically connected with the first logical-arithmetic unit 12；
Second logical-arithmetic unit 12 ', described temperature detector 8, power output controller 9 the most electrically connect
Connect the second logical-arithmetic unit 12 '.
Further, the inlet pipeline being connected with described dust filter unit 1,1 ' import 101,101 '
In the second oxygen analyzer 11 ' is set, described second oxygen analyzer 11 ' be electrically connected with described first logic fortune
Calculate device 12.
The inlet pipeline being connected with described dust filter unit 1,1 ' import 101,101 ' arranges one
Effusion meter 13.
In the present embodiment, described dust filter unit 1,1 ', described pressure reduction display 3,3 ' is all provided with
Put two, form one and open a standby configuration.
In the present embodiment, described compressor 4 is piston compressor；Described cooler 10 is that gas is cold
But device, uses motor-driven fan bottom it.
Again, described electric heater 6 is vertically installed in described degasifier 5 inner bottom part, and uses resistance wire
Heating.
In the present embodiment, degasifier 5 container inner bottom part is vertically installed with some electric heaters 6, inside it
Between electric heater 6 and container inner wall, there is a large amount of space, in space, be uniformly filled with exhibiting high surface plating
The stainless steel ball 7 of copper.
In the present embodiment, coal gas of converter is after dust filter unit 1,1 ', and overwhelming majority dust is cut
Stay.Dust filter unit 1,1 ' alternate run, the pressure reduction read when pressure reduction display 3 reaches to set
After definite value, showing that dust filter unit 1 needs to go switching to clean, now system is switched to dust filter unit
1 ' runs, and continues removing dust.
Degasifier 5 described in the utility model is previously heated to reaction temperature, and then coal gas of converter enters de-
Oxygen device 5, on the surface of the stainless steel ball 7 of copper coating, oxygen and copper in coal gas of converter occur anti-
Should, generating copper oxide, oxygen is removed, and then the carbon monoxide in coal gas of converter is by copper oxide also
Former one-tenth copper, on-line regeneration obtains new deoxidizer, it is achieved deoxidizer uses continuously.
In the present embodiment, the first oxygen analyzer 11 monitors the oxygen content in degasifier 5 exit, and first
Logical-arithmetic unit 12 processes oxygen content data, and gives first, second flow control regulating valve 2 and 2 '
Actuator output, control to enter the coal gas of converter flow of degasifier 5 and the qualified converter of deoxidation
Coal gas output degasifier.Specifically, under this utility model device normal operating conditions, the first oxygen analysis
Instrument 11 monitors the oxygen content≤200ppm in degasifier 5 exit, and first, second flow-control is adjusted
Joint valve 2 and 2 ' normally exports, and under normal operating conditions, monitors if there is the first oxygen analyzer 11
Oxygen content to degasifier 5 exit persistently raises, then transmit a signal to the first logical-arithmetic unit
12, the first logical-arithmetic unit 12 controls the output of first, second flow control regulating valve 2 and 2 ' and opens
Degree reduces；This utility model the ofest short duration appearance the first oxygen analyzer 11 monitors degasifier 5 and goes out
The situation of the oxygen content ＞ 200ppm at Kou, then the first logical-arithmetic unit 12 controls first, second stream
The output aperture of amount control and regulation valve 2 and 2 ' reduces.
In this utility model, temperature detector 8 detects internal electric heater 6 surface temperature of degasifier 5,
Second logical-arithmetic unit 12 ' treatment temperature data, control the power output controller 9 of electric heater 6
Output, it is ensured that degasifier 5 operates in normal safe temperature range.
In a whole set of device for deoxidizing of the present utility model, the first oxygen analyzer 11 is monitored from degasifier defeated in real time
Oxygen content in the coal gas of converter gone out, the second oxygen analyzer 11 ' monitoring inlet oxygen content in real time, first
Logical-arithmetic unit 12 processes the oxygen content data that first, second oxygen analyzer 11,11 ' is fed back, to
One, the actuator output different opening of second flow adjusting control valve 2 and 2 ', keeps entrance de-
Oxygen content total in oxygen device 5, it is ensured that device for deoxidizing operates under safe load.
In the present embodiment, the coal gas after degasifier 5 deoxidation after the cooling of air cooler 10,
Anaerobic fermentation is carried out by pipeline fed downstream microbiological anaerobic fermentation system B.
Embodiment 1
In the present embodiment, in raw material coal gas of converter, oxygen content is 6000ppm, and dust content is
10mg/Nm3.Dust content in coal gas of converter is dropped to 3mg/Nm by dust filter unit 1,1 '3, so
Rear converter coal gas enters compressor 4, and gas pressure is compressed to 6bar (G), the coal gas of converter after compression
Enter bottom degasifier 5 from the gas feed 502 of degasifier 5, fill copper-plated stainless in degasifier
Steel ball, in degasifier 5, electric heater 6 sets heating-up temperature as 250 DEG C, after heating, first
Oxygen analyzer 11 detects that the oxygen content at degasifier 5 gas outlet 501 is 180ppm, oxygen
Removal efficiency reaches 97%, meets the demand of fermentation technology, from gas outlet 501 row of degasifier 5
The coal gas of converter gone out is after subcooler 10, and temperature drops to room temperature, is then fed into downstream microorganism and detests
Aerobe fermentation system B carries out anaerobic fermentation.
Claims (7)
1. the device for deoxidizing of a coal gas of converter, it is characterised in that described device for deoxidizing includes,
At least one dust filter unit, it arranges import and export, and wherein, import connects coal gas of converter source of the gas by inlet pipeline, arranges first flow adjusting control valve in this inlet pipeline；
Degasifier, is a tank structure, and it is upper and lower arranges gas outlet, gas feed；Some electric heaters it are uniformly arranged, the internal stainless steel ball filling copper coating of described degasifier in described degasifier；The gas feed of described degasifier connects the outlet of described dust filter unit by pipeline；
Temperature detector, power output controller, be electrically connected with the electric heater in degasifier respectively；
Air cooler, its entrance point connects the gas outlet of described degasifier by pipeline, arranges the first gas analyzer for O2 and second flow adjusting control valve in this pipeline；Its port of export connects microbiological anaerobic fermentation system by pipeline；
First logical-arithmetic unit, described first oxygen analyzer, first, second flow regulating and controlling valve are electrically connected with the first logical-arithmetic unit；
Second logical-arithmetic unit, described temperature detector, power output controller are electrically connected with the second logical-arithmetic unit.
The device for deoxidizing of coal gas of converter the most according to claim 1, it is characterised in that arrange the second oxygen analyzer in the inlet pipeline being connected with described dust filter unit import, described second oxygen analyzer is electrically connected with described first logical-arithmetic unit.
The device for deoxidizing of coal gas of converter the most according to claim 1 and 2, it is characterised in that in the inlet pipeline being connected with described dust filter unit import, flow meters is set.
The device for deoxidizing of coal gas of converter the most according to claim 1, it is characterised in that also include at least one pressure reduction display, it is arranged in parallel the import and export end in described dust filter unit.
The device for deoxidizing of coal gas of converter the most according to claim 4, it is characterised in that described dust filter unit, described pressure reduction display are respectively provided with two, forms one and opens a standby configuration.
The device for deoxidizing of coal gas of converter the most according to claim 1, it is characterised in that also include a compressor, its entrance point connects the outlet of described dust filter unit by pipeline；Its port of export connects the gas feed of described degasifier by pipeline.
The device for deoxidizing of coal gas of converter the most according to claim 1, it is characterised in that described electric heater is vertically installed in described degasifier inner bottom part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620412051.XU CN205603621U (en) | 2016-05-09 | 2016-05-09 | Deoxidation device of converter coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620412051.XU CN205603621U (en) | 2016-05-09 | 2016-05-09 | Deoxidation device of converter coal gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205603621U true CN205603621U (en) | 2016-09-28 |
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ID=56969477
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620412051.XU Expired - Fee Related CN205603621U (en) | 2016-05-09 | 2016-05-09 | Deoxidation device of converter coal gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886695A (en) * | 2016-05-09 | 2016-08-24 | 上海宝钢气体有限公司 | Deoxidation method and device for converter gas |
-
2016
- 2016-05-09 CN CN201620412051.XU patent/CN205603621U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886695A (en) * | 2016-05-09 | 2016-08-24 | 上海宝钢气体有限公司 | Deoxidation method and device for converter gas |
| CN105886695B (en) * | 2016-05-09 | 2017-08-29 | 上海宝钢气体有限公司 | A kind of method of deoxidation of coal gas of converter |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20200509 |