CN102180525B - Flameless chemical looping combustion oxidizing furnace - Google Patents
Flameless chemical looping combustion oxidizing furnace Download PDFInfo
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- CN102180525B CN102180525B CN2011100640860A CN201110064086A CN102180525B CN 102180525 B CN102180525 B CN 102180525B CN 2011100640860 A CN2011100640860 A CN 2011100640860A CN 201110064086 A CN201110064086 A CN 201110064086A CN 102180525 B CN102180525 B CN 102180525B
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- oxidizer
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Abstract
The invention discloses a flameless chemical looping combustion oxidizing furnace, which comprises an oxidizer and an oxidizer cyclone separator, wherein an oxidizer circulating fluidization outlet on the upper part of the oxidizer and an oxidizer circulating fluidization inlet on the lower part of the oxidizer are communicated with an oxidizer cyclone separator circulating fluidization inlet on the upper part of the oxidizer cyclone separator and an oxidizer cyclone separator circulating fluidization outlet at the bottom end of the oxidizer cyclone separator respectively; the oxidizer comprises an oxidizer furnace body consisting of refractory bricks; the cross section of the oxidizer furnace body is round, and the outer wall of the oxidizer furnace body is enwrapped by a thermal insulation layer; the oxidizer furnace body has a NiO powder outlet, a compressed air inlet and a Ni powder inlet, and a Ni powder conveyor and a Ni powder funnel are arranged above the Ni powder inlet; and the Ni powder inlet and the compressed air inlet are positioned at the bottom of the oxidizer furnace body, and the jetting directions of the Ni powder inlet and the compressed air inlet are opposite to each other and are tangential with the inner wall of the oxidizer furnace body. Compared with the prior art, the flameless chemical looping combustion oxidizing furnace is simple in structure, full in oxidization reaction and wide in application range.
Description
Technical field
The present invention relates to oxidized still, especially a kind of without flame chemistry chain combustion oxidation stove.
Background technology
Global warming mainly is because with CO
2The a large amount of dischargings that are master's greenhouse gases cause the aggravation of global greenhouse effect to cause.Control and minimizing CO
2Quantity discharged have vital role for the impact that solves atmosphere Greenhouse effect and Global warming.CO
2Discharging, most of CO wherein
2Except being produced by fire coal, mainly be that burning petroleum and products thereof produces.Within the period of quite growing future, fuel oil is that main power source general layout can not change, and oil, natural gas consumption are controlled CO in fuel oil, the natural gas production with sustainable growth
2Discharging have significant effect for solving atmosphere Greenhouse effect and Global warming.
Summary of the invention
The object of the invention is to: provide a kind of simple in structure, oxidizing reaction is abundant, applied widely without flame chemistry chain combustion oxidation stove.
For achieving the above object, the present invention can take following technical proposals:
The present invention is a kind of without flame chemistry chain combustion oxidation stove, comprise oxidizer and oxidizer cyclonic separator, the ciculation fluidized outlet of oxidizer on described oxidizer top and the ciculation fluidized entrance of oxidizer of bottom are communicated with the ciculation fluidized entrance of oxidizer cyclonic separator on oxidizer cyclonic separator top and the ciculation fluidized outlet of oxidizer cyclonic separator of bottom respectively, described oxidizer comprises the oxidizer body of heater that is made of refractory brick, the cross section of described oxidizer body of heater is circular, and its outer wall is enclosed with thermal insulation layer; Be provided with the outlet of NiO powder, compressed air inlet and Ni powder entrance at described oxidizer body of heater, be provided with Ni powder transfer roller and Ni powder funnel in described Ni powder entrance upstream; Ni powder entrance and compressed air inlet are positioned at the oxidizer bottom of furnace body, and both injection directions in opposite directions and all tangent with the inwall of oxidizer body of heater.
Described oxidizer also comprises the total valve for control Ni powder entrance and compressed air inlet.
Compared with prior art, the invention has the beneficial effects as follows: because described oxidizer comprises the oxidizer body of heater that is made of refractory brick, the cross section of described oxidizer body of heater is circular, its outer wall is enclosed with thermal insulation layer, be provided with the outlet of NiO powder at described oxidizer body of heater, compressed air inlet and Ni powder entrance, be provided with Ni powder transfer roller and Ni powder funnel in described Ni powder entrance upstream, Ni powder entrance and compressed air inlet are positioned at the oxidizer bottom of furnace body, both injection directions in opposite directions and all tangent with the inwall of oxidizer body of heater, this structure, Ni is fully mixed with air, and oxidizing reaction is thorough, and the heat that produces in the unit time is large; High insulating effect, thermo-efficiency is high; Also be applicable to other oxidizing reaction, applied widely.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structure ﹠processes schematic flow sheet of oil that the present invention is applied to, natural gas flameless chemical looping combustion power system.
Fig. 3 is the structural representation of reducer among Fig. 2.
Fig. 4 is the A-A cross-sectional view of Fig. 3.
Embodiment
Fig. 1 shows a kind of without flame chemistry chain combustion oxidation stove, comprise oxidizer 10 and oxidizer cyclonic separator 9, the ciculation fluidized outlet of oxidizer on described oxidizer 10 tops and the ciculation fluidized entrance of oxidizer of bottom are communicated with the ciculation fluidized entrance of oxidizer cyclonic separator on oxidizer cyclonic separator 9 tops and the ciculation fluidized outlet of oxidizer cyclonic separator of bottom respectively, described oxidizer 10 comprises the oxidizer body of heater 1001 that is made of refractory brick, the cross section of described oxidizer body of heater 1001 is circular, and its outer wall is enclosed with thermal insulation layer; Be provided with NiO powder outlet 1007, compressed air inlet 1003 and Ni powder entrance at described oxidizer body of heater 1001, be provided with Ni powder transfer roller 1004 and Ni powder funnel 1005 in described Ni powder entrance upstream; Described Ni powder entrance and compressed air inlet 1003 are by total valve 1006 their open and close of control.Ni powder entrance and compressed air inlet 1003 are positioned at oxidizer body of heater 1001 bottoms, and both injection directions in opposite directions and all tangent with the inwall of oxidizer body of heater 1001; NiO powder outlet 1007 is positioned at the bottom of oxidizer body of heater 1001.
Fig. 2 is the structure ﹠processes schematic flow sheet of oil that the present invention is applied to, natural gas flameless chemical looping combustion power system, and Fig. 3 is the structural representation of reducer among Fig. 2, and Fig. 4 is the A-A cross-sectional view of Fig. 3.As shown in Figures 1 to 4, described oil, natural gas flameless chemical looping combustion power system comprise: the present invention who consists of without flame chemistry chain burning reduction furnace, by oxidizer 10 and oxidizer cyclonic separator 9 who is made of reducer 1 and reducer cyclonic separator 2 is without flame chemistry chain combustion oxidation stove, compressor 3, saturex 4, condenser 6, carbon dioxide collection tank, a stage turbine 5 and two-stage turbine machine 8.Described reducer 1 has NiO spray tube 103, with the oil of valve 104 or natural gas injection pipe 105, Ni powder outlet 107, electric heating tube 106, the ciculation fluidized outlet of reducer and the ciculation fluidized entrance of reducer; This reducer 1 comprises the body of heater 101 that is made of refractory brick, the cross section of described body of heater 101 is circular, its outer wall is enclosed with thermal insulation layer, in order to increase bearing capacity, can also once establish the steel plate reinforcement layer in body of heater 101 peripheries, described NiO spray tube 103, oil or natural gas injection pipe 105 are positioned at body of heater 101 middle parts, both injection directions consist of 90 degree angles, spray in opposite directions, and injection direction is all tangent with the inwall of body of heater 101, described electric heating tube 106 is positioned at the middle part that described NiO spray tube 103 and oil or natural gas injection pipe 105 spray confluence, this electric heating tube 106 provides the temperature of 850-960 degree when being used for the reaction beginning, described Ni powder outlet 107 is positioned at the bottom of body of heater 101; Described oxidizer 10 has NiO powder outlet 1007, compressed air inlet 1003, Ni powder entrance, the ciculation fluidized outlet of oxidizer and the ciculation fluidized entrance of oxidizer; The oxidizer body of heater 1001 of this oxidizer 10 is made of refractory brick, and the cross section of described oxidizer body of heater 1001 is circular, and its outer wall is enclosed with the thermal insulation layer that is made of asbestos; In order to increase bearing capacity, can also once establish the steel plate reinforcement layer in oxidizer body of heater 1001 peripheries; Described Ni powder entrance upstream is provided with Ni powder transfer roller 1004 and Ni powder funnel 1005; Ni powder entrance and compressed air inlet 1003 are positioned at oxidizer body of heater 1001 bottoms, and both injection directions in opposite directions and all tangent with the inwall of oxidizer body of heater 1001; NiO powder outlet 1007 is positioned at the bottom of oxidizer body of heater 1001.Oxidizer 10 also is provided with the total valve 1006 for control Ni powder entrance and compressed air inlet 1003.Described reducer cyclonic separator 2 has the ciculation fluidized outlet of reducer cyclonic separator, the ciculation fluidized entrance of reducer cyclonic separator and reducer cyclonic separator pneumatic outlet; Described oxidizer cyclonic separator 9 has the ciculation fluidized outlet of oxidizer cyclonic separator, the ciculation fluidized entrance of oxidizer cyclonic separator and oxidizer cyclonic separator pneumatic outlet; Described condenser 6 has condenser inlet, CO
2Export, reach H
2The O outlet, described CO
2Outlet is communicated with described carbon dioxide collection tank.The NiO spray tube 103 of described reducer 1, Ni powder outlet 107, the ciculation fluidized outlet of reducer and the ciculation fluidized entrance of reducer are communicated with the ciculation fluidized entrance of reducer cyclonic separator and the ciculation fluidized outlet of reducer cyclonic separator of the NiO powder outlet 1007 of oxidizer 10, Ni powder entrance, reducer cyclonic separator 2 respectively; The compressed air inlet 1003 of described oxidizer 10 is communicated with described compressor 3 through described saturex 4, and the ciculation fluidized outlet of its oxidizer and the ciculation fluidized entrance of oxidizer are communicated with the ciculation fluidized entrance of oxidizer cyclonic separator and the ciculation fluidized outlet of oxidizer cyclonic separator of described oxidizer cyclonic separator 9 respectively; The reducer cyclonic separator pneumatic outlet of described reducer cyclonic separator 2 is communicated with condenser 6 entrances through a described stage turbine 5; The oxidizer cyclonic separator pneumatic outlet of described oxidizer cyclonic separator 9 is communicated with described two-stage turbine machine 8, and the pneumatic outlet of two-stage turbine machine 8 communicates with atmosphere.The power output shaft of a described stage turbine 5 and two-stage turbine machine 8 is in transmission connection, and consists of power shaft.Described power shaft is in transmission connection with generator 7 and described compressor 3 respectively.
Technical process without the burning of flame chemistry chain mainly comprises:
Flow process A: oil or natural gas after slagging-off is processed are sent in the reducer 1 by oil or natural gas injection pipe 105, electric heating tube 106 is heated to the 850-960 degree with the temperature in the reducer 1, heat is provided when being used for the reaction beginning, reducer 1 forms circulating fluidized bed with reducer cyclonic separator 2, in reducer 1, oil or natural gas and from the NiO of oxidizer 10 reaction generate temperature and are lower than 600 degree, pressure less than the pure CO of the High Temperature High Pressure of 20Mpa
2Gas, reaction equation is:
Or
+ heat
For chemical reaction is fully carried out, described NiO spray tube 103, oil or natural gas injection pipe 105 are positioned at the body of heater middle part, both injection directions in opposite directions and all tangent with the inwall of body of heater 101, thereby form swirling eddy, have the characteristics such as reaction effect is good, simple in structure; Described electric heating tube 106 is positioned at the middle part that described NiO spray tube 103 and oil or natural gas injection pipe 105 spray confluence, the temperature of 850-960 degree is provided when being used for the reaction beginning, and this structure directly heats mixed gas, heating efficiency is high, saves warm up time.
Oxidizer 10 forms circulating fluidized bed with oxidizer cyclonic separator 9, Ni in reducer 1 interior generation sends in the oxidizer 10 by Ni powder entrance, send in the oxidizer 10 by compressed air inlet 1003 through the air of compressor 3, saturex 4 compressions simultaneously, for chemical reaction is fully carried out, the injection direction of Ni powder entrance and compressed air inlet 1003 in opposite directions and all tangent with the inwall of body of heater 1001.In oxidizer 10 oxidizing reaction occurs, Ni is oxidized to NiO, reaction equation is:
2Ni+O
2→ 2NiO+ heat.
Flow process B: reaction generates the pure CO of High Temperature High Pressure
2Gas is sent into work done in the stage turbine 5 by reducer wind separator 2, drives generator 7 generatings, also provides power for compressor 3 simultaneously; Out temperature is lower than 600 degree, pressure less than the High Temperature High Pressure N of 20Mpa from oxidizer cyclonic separator 9
2Gas is delivered to work done in the two-stage turbine machine 8, drives generator 7 generatings, also provides power for compressor 3 simultaneously.
Flow process C: be condensed into pure CO through condenser 6 from a stage turbine 5 gas out
2Gas and water are with pure CO
2Gas recovery is in the carbon dioxide collection tank.
Claims (2)
1. one kind without flame chemistry chain combustion oxidation stove, comprise oxidizer (10) and oxidizer cyclonic separator (9), the ciculation fluidized outlet of oxidizer on described oxidizer (10) top and the ciculation fluidized entrance of oxidizer of bottom are communicated with the ciculation fluidized entrance of oxidizer cyclonic separator on oxidizer cyclonic separator (9) top and the ciculation fluidized outlet of oxidizer cyclonic separator of bottom respectively, it is characterized in that: described oxidizer (10) comprises the oxidizer body of heater (1001) that is made of refractory brick, the cross section of described oxidizer body of heater (1001) is circular, and its outer wall is enclosed with thermal insulation layer; Be provided with the outlet of NiO powder (1007), compressed air inlet (1003) and Ni powder entrance at described oxidizer body of heater (1001), be provided with Ni powder transfer roller (1004) and Ni powder funnel (1005) in described Ni powder entrance upstream; Ni powder entrance and compressed air inlet (1003) are positioned at oxidizer body of heater (1001) bottom, and both injection directions in opposite directions and all tangent with the inwall of oxidizer body of heater (1001).
2. according to claim 1 without flame chemistry chain combustion oxidation stove, it is characterized in that: described oxidizer (10) also comprises the total valve (1006) for control Ni powder entrance and compressed air inlet (1003).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100640860A CN102180525B (en) | 2011-03-17 | 2011-03-17 | Flameless chemical looping combustion oxidizing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100640860A CN102180525B (en) | 2011-03-17 | 2011-03-17 | Flameless chemical looping combustion oxidizing furnace |
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| CN102180525A CN102180525A (en) | 2011-09-14 |
| CN102180525B true CN102180525B (en) | 2013-10-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201526976U (en) * | 2009-10-21 | 2010-07-14 | 烟台鑫丰源电站设备有限公司 | Refuse-fired boiler for circulating fluidized bed |
| US20100242815A1 (en) * | 2009-03-31 | 2010-09-30 | Alstom Technology Ltd | Sealpot and method for controlling a solids flow rate therethrough |
| CN101975395A (en) * | 2010-09-18 | 2011-02-16 | 青岛科技大学 | Dual-cycle fluidized bed device for coal-based chemical chain process |
| CN202072492U (en) * | 2011-03-17 | 2011-12-14 | 绍兴文理学院 | Flameless chemical-looping combustion oxidation furnace |
-
2011
- 2011-03-17 CN CN2011100640860A patent/CN102180525B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100242815A1 (en) * | 2009-03-31 | 2010-09-30 | Alstom Technology Ltd | Sealpot and method for controlling a solids flow rate therethrough |
| CN201526976U (en) * | 2009-10-21 | 2010-07-14 | 烟台鑫丰源电站设备有限公司 | Refuse-fired boiler for circulating fluidized bed |
| CN101975395A (en) * | 2010-09-18 | 2011-02-16 | 青岛科技大学 | Dual-cycle fluidized bed device for coal-based chemical chain process |
| CN202072492U (en) * | 2011-03-17 | 2011-12-14 | 绍兴文理学院 | Flameless chemical-looping combustion oxidation furnace |
Non-Patent Citations (2)
| Title |
|---|
| 化学链燃烧技术的研究现状及进展;卢玲玲等;《现代化工》;20070831;第27卷(第8期);全文 * |
| 卢玲玲等.化学链燃烧技术的研究现状及进展.《现代化工》.2007,第27卷(第8期),全文. |
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