CN108569676A - Using flue gas as the chemical chain air separation oxygenerator and method of heat source - Google Patents
Using flue gas as the chemical chain air separation oxygenerator and method of heat source Download PDFInfo
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- CN108569676A CN108569676A CN201810443847.5A CN201810443847A CN108569676A CN 108569676 A CN108569676 A CN 108569676A CN 201810443847 A CN201810443847 A CN 201810443847A CN 108569676 A CN108569676 A CN 108569676A
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- Prior art keywords
- fixed bed
- flue gas
- bed
- gas
- oxygen
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/08—Preparation of oxygen from air with the aid of metal oxides, e.g. barium oxide, manganese oxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention is a kind of using flue gas as the air separation oxygenerator of heat source, belongs to chemical chain technology and chemical chain air oxygen field.The overall structure of the invention is made of fixed bed reactors, two cyclone separators, fast fluidized bed reactor, condenser, waste heat boiler and filter.Flue gas, which is entered by smoke inlet in fixed bed, heats fixed bed, it is discharged by exhaust outlet after heating, oxygen carrier is entered bed by feed inlet, the gas that reaction generates, which is expelled to by gas vent in cyclone separator, to be detached, oxygen carrier after being reduced passes through feed screw, fixed bed is reentered by another feed inlet again, is recycled.The flow reduces oxygen cost processed, and efficiency is higher, produced oxygen purity is higher using flue gas as heat source.
Description
Technical field
It is a kind of chemical chain oxygenerator and method the present invention relates to burning chemistry chains field.
Background technology
Chemical chain burning technology is a kind of good combustion system, while there is burning chemistry chains system preferably burning to imitate
The characteristics of rate, smaller dissipation, chemical chain burning technology can effectively reduce the discharge of this greenhouse gases of CO2.Oxygen is
Important air component part, the application in the industrial productions such as chemical industry and daily life are relatively broad.But it passes
The air-separating oxygen-making method of system is in all many-sided existing defects such as energy consumption, equipment and technological process, production cost control.
Air-separating oxygen-making technology using chemical chain is a kind of method for producing oxygen through of Nover practical, and principle is to utilize chemistry
The continuous oxidation-reduction reaction of oxygen carrier carrys out oxygen producing in chain.Compared with common method for producing oxygen through, the technical know-how energy consumption is relatively low,
It is a kind of very effective method for producing oxygen through, the application prospect of the technology is fine.
Invention content
Chemical chain separating air and making is for oxygen unit, including fixed bed reactors, two cyclone separators, fast fluidized beds
Reactor, condenser, waste heat boiler and filter.
The Processes and apparatus that the invention is included provides reaction process using flue gas as heat source, for chemical chain oxygen making reaction process
Needed for thermal energy, principle is：With the oxygen processed of chemical chain air separation technology, the advantages of technology be oxygen generation efficiency compared with
High, its product oxygen purity is high, technical process has advance.Principle schematic is as shown in Figure 1.
The purpose of the present invention is to solve traditional chemical chain oxygenerator there are the problem of, to traditional equipment carry out one
Change and improve, improves oxygen making reaction rate and efficiency of combustion to greatest extent.It is standby by the chemical chain separating air and making of redesign
Oxygen unit makes traditional oxygen generating plant realize integration；Simultaneously it is also ensured that chemical chain oxygen generation system successive reaction, instead
The continuity answered improves the reaction rate of oxygen processed, and the design of the technique can also reduce the thermal loss of reaction process, can be with
Realize the maximization of Waste Heat Reuse in flue gas.
Technical scheme is as follows：
Chemical chain air separation oxygenerator is made of three parts, i.e., reactor part, cyclone separator part, collection of products carry
Pure part, concrete technology flow process is as shown in principle schematic 1.
Reactor part
The part includes fixed bed reactors 1, fast fluidized bed reactor 4.Wherein fixed bed 1（Such as Fig. 2, fixed bed reactors
Shown in schematic diagram）By bed body and gas access（1）, gas vent（2）, feed inlet 1,2 five part of feed inlet composition.Flue gas is by cigarette
Gas entrance a, which enters bed, heats fixed bed, after heating by exhanst gas outlet a ' be discharged, oxygen carrier by feed inlet 1 into
Enter in bed, reacts the gas of generation by gas vent（2）Into in cyclone separator 3, the oxygen carrier after being reduced passes through spiral
Feeder c, then fixed bed is reentered by feed inlet 2, it is recycled.
Wherein, the parts c are feed screw, and it acts as be connected and fixed bed with cyclone separator 2 and carry out between the two
Oxygen carrier transmit, fixed bed, cyclone separator and c part there are certain angular relationship, angular relationship schematic diagram as shown in figure 3,
Transfer rate under this angle and energy consumption are coincide preferable with reacting, and the rate of feed screw is according to the weight of practical oxygen carrier
To determine.
Cyclone separator part
The part is made of cyclone separator 2 and cyclone separator 3.
Collection of products purifies part
Combustion product is collected part and is made of condenser 5, filter assemblies 6, waste heat boiler 7.
System principle and specific implementation mode
It is as follows to design device working method：
This works devises a set of chemical chain continuous oxygen generation device, and concrete technology flow process is as shown in Figure 1, referring to installation drawing
Its structure and working method are specifically described.Chemical chain continuous oxygen generation device implementation steps are as follows：
（1）According to the difference of reaction temperature, to select and prepare oxygen carrier.Oxygen carrier is added to fixed bed 1 by feed inlet
In.Oxygen carrier type in fixed bed 1 is selected according to the difference of temperature in fixed bed, when flue-gas temperature is more than 1000 °
The oxygen carrier of selection is Pb2O3；When temperature is more than 1000 °, the oxygen carrier of selection is iron ore particle.
（2）Flue gas containing high temperature waste hot entered in fixed bed 1 by smoke inlet a until reach reaction temperature, react into
Row.Reaction equation is:2MexOy+H2O(g)=2MexOy-1+O2+H2O(g).
（3）The vapor that waste heat boiler 7 generates is passed through through piping b to fixed bed 1, certain time, fixed bed 1 are passed through
Interior air is by whole emptyings, and in fixed bed 1, oxygen carrier and vapor react 2MexOy+H2O (g)=2MexOy-1+O2+
H2O (g) produces oxygen.
（4）Product in fixed bed 1 after reaction is oxygen, vapor, oxygen carrier.After the separation of cyclone separator 3, carry
Oxysome enters fast fluidized bed reactor 4, and pipeline m is passed through high velocity fluidization wind, to the oxygen carrier in fast fluidized bed reactor into
Row fluidisation, oxygen carrier carry out oxidation reaction MexOy-2+O2=MexOy with high-speed air in fast fluidized bed reactor.
（5）After the separation of cyclone separator 3, the mixed gas of vapor and oxygen flows into condenser 5 through piping h,
Vapor is cooled into liquid water in condenser 5, and pipeline i is passed through cooling water and is cooled down to mixed gas.Cooling water is by pipe
Road f is flowed into waste heat boiler 7.
（6）Oxygen is with vapor after the separation of cooling effect, and oxygen enters through piping k in filter 6, after filtering
Obtained pure oxygen is discharged and collects via pipeline l.
（7）High velocity fluidization air and oxygen carrier precursor reactant：MexOy-2+O2=MexOy, product enter whirlwind point through piping e
From in device 2, after gas solid separation, gas enters waste heat boiler and the boiler exhaust mouth discharge that has surplus heat, solid enter fixation by pipeline c
In bed 1, pipeline c is the tilted tube added with conveyer belt.After the process, reaction reenters recurrent state.
Description of the drawings
Fig. 1 is technological process and schematic diagram, wherein 1 is fixed bed reactors, 2 be cyclone separator 2,3 is cyclonic separation
Device 3,4 is fast fluidized bed reactor, 5 is condenser, 6 is filter assemblies, 7 is waste heat boiler.
Fig. 2 is fixed bed reactors schematic diagram, wherein（1）For gas access,（2）For gas vent,（3）For feed inlet
1、（4）For feed inlet 2, a is smoke inlet, and a ' is exhanst gas outlet
Fig. 3 angular relationship schematic diagrames between feed screw c and cyclone separator and fixed bed reactors three
The advantages of invention, is as follows
（1）The invention is a kind of novel chemical chain oxygen unit.The device utilize fume afterheat, reduce oxygen processed at
This, improves salvage value.
（2）By the integration to traditional chemical chain oxygen technique and device, new invention realizes integration, improves production
Rate.
（3）Oxygen carrier conveying device has been redesigned, oxygen carrier conevying efficiency is improved, rapid reaction is promoted to carry out.
（4）In the apparatus, by the introducing of waste heat gas, the heat needed for reaction is provided, ensures chemical chain oxygen system
System is carried out continuously, and is improved reaction rate with this, is decreased the thermal loss of reaction process, to realize using energy source
It maximizes.
Claims (4)
1. using flue gas as the chemical chain air separation oxygenerator of heat source, overall structure is by fixed bed reactors, two whirlwind point
It is formed from device, fast fluidized bed reactor, condenser, waste heat boiler and filter.
2. integral type according to claim 1 fixes bed chemical chain combustion apparatus, which is characterized in that the fixation of described device
Bed reactor part is by by bed body and gas access（1）, gas vent（2）, feed inlet 1, feed inlet 2, smoke inlet a, flue gas
A ' compositions are exported, flue gas is entered bed by smoke inlet a and heated to fixed bed, is arranged by exhanst gas outlet a ' after heating
Go out, oxygen carrier is entered bed by feed inlet 1, reacts the gas of generation by gas vent（2）Into in cyclone separator 3, gone back
Oxygen carrier after original passes through feed screw c, then reenters fixed bed by feed inlet 2, is recycled.
3. according to claim 1 using flue gas as the air separation oxygenerator of heat source, which is characterized in that in described device
The equipment feed screw c for being connected and fixed bed and cyclone separator 2 has axis screw fixed-weight feeder for single layer circular pipe type.
4. according to claim 1 using flue gas as the air separation oxygenerator of heat source, which is characterized in that described device spiral shell
Rotation feeder c is connected and fixed bed and cyclone separator 2, the angle difference of fixed bed, cyclone separator and the parts feed screw c
For 45 ° and 135 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443847.5A CN108569676A (en) | 2018-05-10 | 2018-05-10 | Using flue gas as the chemical chain air separation oxygenerator and method of heat source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443847.5A CN108569676A (en) | 2018-05-10 | 2018-05-10 | Using flue gas as the chemical chain air separation oxygenerator and method of heat source |
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| Publication Number | Publication Date |
|---|---|
| CN108569676A true CN108569676A (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810443847.5A Pending CN108569676A (en) | 2018-05-10 | 2018-05-10 | Using flue gas as the chemical chain air separation oxygenerator and method of heat source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015643A (en) * | 2019-05-29 | 2019-07-16 | 黄羿钤 | Utilize the method and device thereof of thermal energy production oxygen |
| CN110332811A (en) * | 2019-04-30 | 2019-10-15 | 上海源晗能源技术有限公司 | The method and apparatus of oxygen-enriched preparation and conveying in cement kiln oxygen-enriched combusting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672530A (en) * | 2009-08-12 | 2010-03-17 | 东南大学 | Method and device for burning chemistry chains based on iron or iron oxide |
| CN101962575A (en) * | 2010-09-18 | 2011-02-02 | 青岛科技大学 | Method and device for preparing synthesis gas by coal particle/oxygen carrier chemical chain |
| CN103043615A (en) * | 2012-12-26 | 2013-04-17 | 东北大学 | Device and method for preparing oxygen through taking hot gas as heat source by chemical chain air technology |
| CN103043616A (en) * | 2012-12-26 | 2013-04-17 | 东北大学 | Device and method for preparing high-purity oxygen gas based on chemical-loop air separation technique |
| CN103353120A (en) * | 2013-06-09 | 2013-10-16 | 北方联合电力有限责任公司 | System for recycling afterheat and condensed water of desulfurized tail flue gas |
| CN103864021A (en) * | 2014-03-18 | 2014-06-18 | 南京理工大学 | Device and method for preparing oxygen by virtue of chemical looping air separation |
-
2018
- 2018-05-10 CN CN201810443847.5A patent/CN108569676A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672530A (en) * | 2009-08-12 | 2010-03-17 | 东南大学 | Method and device for burning chemistry chains based on iron or iron oxide |
| CN101962575A (en) * | 2010-09-18 | 2011-02-02 | 青岛科技大学 | Method and device for preparing synthesis gas by coal particle/oxygen carrier chemical chain |
| CN103043615A (en) * | 2012-12-26 | 2013-04-17 | 东北大学 | Device and method for preparing oxygen through taking hot gas as heat source by chemical chain air technology |
| CN103043616A (en) * | 2012-12-26 | 2013-04-17 | 东北大学 | Device and method for preparing high-purity oxygen gas based on chemical-loop air separation technique |
| CN103353120A (en) * | 2013-06-09 | 2013-10-16 | 北方联合电力有限责任公司 | System for recycling afterheat and condensed water of desulfurized tail flue gas |
| CN103864021A (en) * | 2014-03-18 | 2014-06-18 | 南京理工大学 | Device and method for preparing oxygen by virtue of chemical looping air separation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332811A (en) * | 2019-04-30 | 2019-10-15 | 上海源晗能源技术有限公司 | The method and apparatus of oxygen-enriched preparation and conveying in cement kiln oxygen-enriched combusting |
| CN110015643A (en) * | 2019-05-29 | 2019-07-16 | 黄羿钤 | Utilize the method and device thereof of thermal energy production oxygen |
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