CN203683085U - Device for preparing synthetic gas by performing methane reforming through blast furnace slag sensible heat - Google Patents
Device for preparing synthetic gas by performing methane reforming through blast furnace slag sensible heat Download PDFInfo
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- CN203683085U CN203683085U CN201420025037.5U CN201420025037U CN203683085U CN 203683085 U CN203683085 U CN 203683085U CN 201420025037 U CN201420025037 U CN 201420025037U CN 203683085 U CN203683085 U CN 203683085U
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- Prior art keywords
- fixed bed
- blast furnace
- slag
- waste heat
- sensible heat
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000002893 slag Substances 0.000 title claims abstract description 32
- 238000002407 reforming Methods 0.000 title claims abstract description 17
- 238000005469 granulation Methods 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 19
- 230000003179 granulation Effects 0.000 claims abstract description 19
- 239000002918 waste heat Substances 0.000 claims abstract description 18
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 11
- 238000010248 power generation Methods 0.000 claims abstract description 11
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 11
- 239000003345 natural gas Substances 0.000 claims abstract description 8
- 239000011400 blast furnace cement Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 18
- 235000011089 carbon dioxide Nutrition 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000006057 reforming reaction Methods 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 150000001722 carbon compounds Chemical class 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- 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
-
- 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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to the field of preparation of synthetic gas and recycling of energy sources, and in particular relates to a device for preparing synthetic gas by performing methane reforming through blast furnace slag sensible heat. The device is characterized by comprising a granulation reactor, a dust collection device, a waste heat boiler, a power generation device, a fixed bed, a Fischer-Tropsch synthesis reactor and a pressure swing adsorption device, wherein the granulation reactor is arranged at the tail end of a slag runner of a blast furnace, and is connected with the fixed bed downwards; a slag discharge port is arranged at the bottom of the fixed bed; the pressure swing adsorption device and a natural gas station are connected with a lower air inlet of the fixed bed; the top of the granulation reactor is connected with the waste heat boiler through the dust collection device; the waste heat boiler is connected with the Fischer-Tropsch synthesis reactor and the power generation device respectively. Compared with the prior art, the device disclosed by the utility model has the beneficial effects that the aims of blast furnace slag sensible heat recycling and methane reforming are respectively realized by using the theory that the chemical energy recycling efficiency is high through three processes of heat exchange, reforming and power generation, thus having great significances for energy conservation and emission reduction as well as pollution control.
Description
Technical field
The utility model relates to preparing synthetic gas and energy recovery is utilized field, relates in particular to a kind of device that utilizes blast-furnace cement sensible heat to carry out reforming of methane on Ni-Ce.
Background technology
Carbonic acid gas is the final product of carbon compound burning, and along with the development of world economy, carbonic acid gas increases with annual 4% speed.The Global climate change that carbonic acid gas causes as main greenhouse gases has become the focal issue that international community pays special attention to.How to reduce the discharge of carbonic acid gas, or even a more carbonic acid gas changed into the material useful to the mankind, the resource utilization that realizes carbonic acid gas to save energy, alleviate environmental pollution pressure and ensure that people's orthobiosis has far-reaching influence.
Carbonic acid gas is the symmetrical triatomic molecule of typical straight line, and because the carbon in carbonic acid gas is highest oxidation state, molecule is very stable, make its reduction that large energy need to be provided.So how to utilize industrial complementary energy waste heat to change carbonic acid gas into operable raw material, it is the committed step that realizes Resources of Carbon Dioxide.
Molten blast furnace slag is the byproduct of blast furnace ironmaking, and its outflow temperature is 1400～1600 DEG C, and heat content is about standard coal 60Kg/t (slag).Within 2012, China produces 6.579 hundred million tons of the pig iron, produces 0.35 ton of slag calculate by iron per ton, and the quantum of output of blast furnace slag is 2.3 hundred million tons.But it is processed and mostly adopts water quenching at present, and the shortcoming of this method is: not only the sensible heat of blast furnace slag cannot be recycled, and causes a large amount of wastes of water resources, and atmosphere, water and soil have also been caused to serious pollution, has worsened surrounding enviroment.
Summary of the invention
The purpose of this utility model is to provide a kind of device that utilizes blast-furnace cement sensible heat to carry out reforming of methane on Ni-Ce, makes full use of natural gas source, alleviating energy crisis; Reduce the discharge of greenhouse gases, preserve the ecological environment; The synthetic gas (hydrogen and carbon monoxide) making can be directly used in carbonyl and dial that base is synthetic, fischer-tropsch synthetic; The high-quality waste heat of high efficiente callback blast furnace slag, reduces pollution on the environment in its treating processes.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of device that utilizes blast-furnace cement sensible heat to carry out reforming of methane on Ni-Ce, comprise granulation reactor, cleaning apparatus, waste heat boiler, power generation assembly, fixed bed, Fischer-Tropsch synthesis device and pressure-swing absorption apparatus, granulation reactor is arranged on the slag runner end of blast furnace, granulation reactor is connected with fixed bed downwards, fixed bed bottom is slag-drip opening, pressure-swing absorption apparatus successively with the tank one of getting a breathing space, gas blower one is connected with butterfly valve one, natural gas station successively with the tank two of getting a breathing space, gas blower two is connected with butterfly valve two, the bottom blast inlet of fixed bed respectively with butterfly valve one, butterfly valve two is connected, granulation reactor head connects waste heat boiler through cleaning apparatus, waste heat boiler is connected with power generation assembly with Fischer-Tropsch synthesis device respectively.
The inwall of described granulation reactor is provided with water wall.
Compared with prior art, the beneficial effects of the utility model are: utilize chemical energy to reclaim the high theory of Energy efficiency, by heat exchange, reform and three processes of generating, realize respectively the object of blast-furnace cement sensible heat recycling and methane reforming, the blast furnace slag obtaining, steam and synthetic gas can be made respectively cement, generating and high-quality liquid fuel, compare with methane reforming method with existing water quenching, both effectively reclaimed blast-furnace cement sensible heat, save reforming reaction energy consumption, consume again a large amount of carbon dioxides, energy-saving and emission-reduction and control pollution are had to great meaning.
Brief description of the drawings
Fig. 1 is that the utility model utilizes blast-furnace cement sensible heat to carry out the device example structure schematic diagram of reforming of methane on Ni-Ce.
In figure: the 1-blast furnace 2-slag runner 3-granulation reactor 4-cleaning apparatus 5-waste heat boiler 6-power generation assembly 7-fixed bed 8-Fischer-Tropsch synthesis device 9-pressure-swing absorption apparatus 10-tank one 11-gas blower one 12-butterfly valve one 13-natural gas station 14-tank two 15-gas blower two 16-butterfly valve two 17-slag-drip openings of getting a breathing space of getting a breathing space
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, it is a kind of device example structure schematic diagram that utilizes blast-furnace cement sensible heat to carry out reforming of methane on Ni-Ce of the utility model, comprise granulation reactor 3, cleaning apparatus 4, waste heat boiler 5, power generation assembly 6, fixed bed 7, Fischer-Tropsch synthesis device 8 and pressure-swing absorption apparatus 9, granulation reactor 3 is arranged on slag runner 2 ends of blast furnace 1, granulation reactor 3 is connected with fixed bed 7 downwards, fixed bed 7 bottoms are slag-drip opening 17, pressure-swing absorption apparatus 9 successively with the tank 1 of getting a breathing space, gas blower 1 is connected with butterfly valve 1, natural gas station 13 successively with the tank 2 14 of getting a breathing space, gas blower 2 15 is connected with butterfly valve 2 16, the bottom blast inlet of fixed bed 7 respectively with butterfly valve 1, butterfly valve 2 16 is connected, granulation reactor 3 tops connect waste heat boiler 5 through cleaning apparatus 4, waste heat boiler 5 is connected with power generation assembly 6 with Fischer-Tropsch synthesis device 8 respectively.The inwall of granulation reactor 3 is provided with water wall.
A kind of method of utilizing blast-furnace cement sensible heat to carry out reforming of methane on Ni-Ce of utilizing said apparatus to realize, be exactly that the carbonic acid gas in the flue gas after carbon compound burning is contacted with the molten blast furnace slag after fragmentation together with Sweet natural gas, carry out heat exchange and heat absorption reforming reaction occurs under the katalysis of slag, generate the synthetic gas of carbon monoxide and hydrogen, and further generate liquid fuel through Fischer-Tropsch synthesis, the concrete steps of its realization are as follows:
1) temperature is not less than the molten blast furnace slag of 1450 DEG C and flows out through slag runner 2 and flow into granulation reactor 3 from blast furnace 1, be to be broken into the drop that diameter is 2～4mm under the centrifugation of 1800～2000 revs/min at rotating speed, and with being preheating to the methane and carbon dioxide generation reforming reaction of 600 DEG C～650 DEG C, complete thermal exchange for the first time, generate the synthetic gas of hydrogen and carbon monoxide, blast furnace slag is tentatively cooling, and temperature is down to 800 DEG C～850 DEG C;
2) preliminary cooling blast furnace slag is deposited in fixed bed 7, slowly mobile downwards under the effect of gravity;
3) the flue gas carbonic acid gas obtaining through pressure-swing absorption apparatus 9 and the methane that transports 13 from natural gas station after carbon compound burning are blasted from the bottom of fixed bed 7 and is piled up in the relative countercurrent flow of the interior blast furnace slag of fixed bed 7 and is preheated to 600 DEG C～650 DEG C, in slag under the katalysis of Fe, there is part reforming reaction, blast furnace slag temperature drop to 150 DEG C, discharge and can make cement by slag-drip opening 17, complete thermal exchange for the second time simultaneously;
4) the 600 DEG C～hydrogen of 650 DEG C that reaction generates and the synthetic gas of carbon monoxide, through cleaning apparatus 4 dedustings, make dust content in synthetic gas lower than 10mg/m
3after, enter waste heat boiler 5 can produce 1.0Mpa, 194 DEG C steam and generated electricity by power generation assembly 6;
5) synthetic gas of 300 DEG C～350 DEG C of discharging from waste heat boiler 5 can directly generate liquid fuel through Fischer-Tropsch synthesis reactor 8.
Embodiment is taking 1 ton of molten iron as calculating basis, and slag iron is than 0.3,1450 DEG C of slag temperatures, and 200 DEG C of slag outflow temperatures, waste heat recovery efficiency is 70%, 20 DEG C of envrionment temperatures, CH
4and CO
2800 DEG C of temperature of reaction
Molten blast furnace slag provides heat: Δ Q
z=300 × 1.19 × (1450-200)=446250kj/t iron
CH
4absorb physical thermal: Q
x1==2.5 × 800-1.57 × 20=1968.6kj/m
36
CO
2absorb physical thermal: Q
x2=2.15 × 800-1.638 × 20=1687.2kj/m
3
Amount to and absorb physical thermal: Q
x=Q
x1+ Q
x2=3656kj/m
3
Endothermic reforming reaction: Q
cx=247 × 1000/22.4=11027kj/m
3
Total heat absorption: Q
z=Q
x+ Q
cx=14683kj/m
3
V
z=446250×0.7/14683=21.3m
3
Known according to calculating, produce the slag consumption 21.3m that one ton of iron produces
3carbon dioxide, produce 63.8m simultaneously
3h
2and 21.3m
3cO (g), i.e. 85m
3high-quality synthetic gas.
The utility model utilizes blast-furnace cement sensible heat to carry out reforming of methane on Ni-Ce, utilize centrifugal force to carry out slag dry-type pulverizing, compared with water quenching, save water consumption, greatly reduce pollutant emission, realized the resource utilization of carbonic acid gas, efficient recovery slag high-quality sensible heat, greatly reduced the energy consumption of traditional reforming process.
Claims (2)
1. a device that utilizes blast-furnace cement sensible heat to carry out reforming of methane on Ni-Ce, it is characterized in that, comprise granulation reactor, cleaning apparatus, waste heat boiler, power generation assembly, fixed bed, Fischer-Tropsch synthesis device and pressure-swing absorption apparatus, granulation reactor is arranged on the slag runner end of blast furnace, granulation reactor is connected with fixed bed downwards, fixed bed bottom is slag-drip opening, pressure-swing absorption apparatus successively with the tank one of getting a breathing space, gas blower one is connected with butterfly valve one, natural gas station successively with the tank two of getting a breathing space, gas blower two is connected with butterfly valve two, the bottom blast inlet of fixed bed respectively with butterfly valve one, butterfly valve two is connected, granulation reactor head connects waste heat boiler through cleaning apparatus, waste heat boiler is connected with power generation assembly with Fischer-Tropsch synthesis device respectively.
2. a kind of device that utilizes blast-furnace cement sensible heat to carry out reforming of methane on Ni-Ce according to claim 1, is characterized in that, the inwall of described granulation reactor is provided with water wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025037.5U CN203683085U (en) | 2014-01-15 | 2014-01-15 | Device for preparing synthetic gas by performing methane reforming through blast furnace slag sensible heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025037.5U CN203683085U (en) | 2014-01-15 | 2014-01-15 | Device for preparing synthetic gas by performing methane reforming through blast furnace slag sensible heat |
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| Publication Number | Publication Date |
|---|---|
| CN203683085U true CN203683085U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420025037.5U Expired - Lifetime CN203683085U (en) | 2014-01-15 | 2014-01-15 | Device for preparing synthetic gas by performing methane reforming through blast furnace slag sensible heat |
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| Country | Link |
|---|---|
| CN (1) | CN203683085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041108A (en) * | 2016-06-01 | 2016-10-26 | 重庆大学 | Nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device and method |
| CN107022659A (en) * | 2017-05-10 | 2017-08-08 | 南京工业大学 | High-temperature slag waste heat gradient recycling system |
-
2014
- 2014-01-15 CN CN201420025037.5U patent/CN203683085U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041108A (en) * | 2016-06-01 | 2016-10-26 | 重庆大学 | Nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device and method |
| CN106041108B (en) * | 2016-06-01 | 2018-01-26 | 重庆大学 | Dilval dry granulation and methane vapor reforming waste-heat recovery device and method |
| CN107022659A (en) * | 2017-05-10 | 2017-08-08 | 南京工业大学 | High-temperature slag waste heat gradient recycling system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |