CN107055486A - A kind of flue gas acid preparing process waste heat Application way - Google Patents
A kind of flue gas acid preparing process waste heat Application way Download PDFInfo
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- CN107055486A CN107055486A CN201710218915.3A CN201710218915A CN107055486A CN 107055486 A CN107055486 A CN 107055486A CN 201710218915 A CN201710218915 A CN 201710218915A CN 107055486 A CN107055486 A CN 107055486A
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- bed
- flue gas
- heat
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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
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
-
- 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
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of flue gas acid preparing process waste heat Application way, half SO2Flue gas is mixed with air, after First Heat Exchanger, the heating of preposition heat exchanger, into the preposition bed of SO 2 converter, and outlet is premenstrual to be put after heat exchanger heat exchange, with second half SO2After flue gas mixing, into first paragraph bed；After first paragraph bed outlet exchanges heat through the first steam superheater, into second segment bed；Second segment bed outlet enters the 3rd section of bed after being exchanged heat through the 3rd heat exchanger；After 3rd section of bed outlet exchanges heat through the second steam superheater, a part of outlet exchanges heat through First Heat Exchanger, another part outlet exchanges heat through the second heat exchanger, subsequently enters high temperature absorption tower；Tower outlet enters the 4th section of bed after the 4th heat exchanger and the heating of the 3rd heat exchanger；4th section of bed outlet is after the 3rd steam superheater and the heat exchange of the 4th heat exchanger, into final absorption tower.The Technological adaptability of this method is wide in range, easy to operate, reliable, and Waste Heat Reuse rate is high.
Description
Technical field
The invention belongs to technical field of inorganic chemical industry, and in particular to residual-heat utilization method during a kind of flue gas acid preparing.
Background technology
At present, in non-ferrous metal oxygen-rich smelting flue gas acid preparing field, the high concentration SO of industrialized production has been put into2Flue gas turns
Change technology mainly has the pre- of the BAYQIK technologies of Bayer A.G, Out-0tec LUREC technologies and Meng Moke companies of the U.S.
Transformation technology.These three technologies can handle φ (SO2The flue gas of) >=14%, and compared with routine transformation technique, specification of equipment subtracts
Small, operating cost reduction, heat recovery rate are improved.Because Sulphur Dioxide must be changed into sulfur trioxide using multistage conversion, conversion
In thermal flow process, the cold air into converter heated need to reach specified temp, and each section of air inlet is both needed to maintain optimum temperature, absorbed
Tower air inlet need to be in optimum range.The heat exchange process of three kinds of above-mentioned high-concentration sulfur dioxide transformation technologies differs from one another, and its is total
Though conversion ratio and absorptivity are high, it is present, and device structure design requirement is high, heat exchange process is complicated, waste heat recovery plant failure wind
Danger is high（Waste heat boiler and economizer etc.）, the problems such as heat energy utilization is unreasonable.Meanwhile, by flue gas SO2Concentration adaptability, catalyst
The factor such as performance and consumption, gas forms of distribution, operational control complexity is limited, in the industrial production, above-mentioned three kinds of technologies
There is the bottleneck problem of influence equipment long period stable operation at full capacity in various degree.
Therefore, the high concentration SO produced for oxygen-rich smelting and melting continuously2Flue gas acid preparing technology, the rational heat exchange of exploitation
Flow, makes each section of intake air temperature rationally adjustable, and flow path resistance is reduced as far as possible, and high efficiente callback used heat improves SO2Total conversion,
Relieving haperacidity exhaust emissions concentration and total amount are reduced, is the problem of need to currently solving.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of flue gas acid preparing process waste heat Application way, should
The Technological adaptability of method is wide in range, easy to operate, reliable, and Waste Heat Reuse rate is high.
Above-mentioned purpose is realized by following proposal：
A kind of flue gas acid preparing process waste heat Application way, it is characterised in that this method is：SO2Flue gas is by two dioxies in parallel
Change sulphur blower fan mean allocation and convey, the SO of a sulphur dioxide blower conveying2The air that flue gas is conveyed with air blower is mixed,
Sequentially pass through after First Heat Exchanger, the heating of preposition heat exchanger, into the preposition bed of SO 2 converter, the preposition bed
Outlet after the preposition heat exchanger heat exchange, the SO conveyed with another sulphur dioxide blower heat through the second heat exchanger2
After flue gas mixing, into the first paragraph bed of SO 2 converter；The outlet of the first paragraph bed is through the first steam superheating
After device heat exchange, into the second segment bed of SO 2 converter；The outlet of the second segment bed exchanges heat through the 3rd heat exchanger
Enter the 3rd section of bed of SO 2 converter afterwards；After the outlet of the 3rd section of bed exchanges heat through the second steam superheater,
A part of outlet exchanges heat through described First Heat Exchanger heat exchange, another part outlet through the second described heat exchanger, subsequently enters
High temperature absorption tower；The outlet on described high temperature absorption tower enters after the 4th heat exchanger and described the 3rd heat exchanger heating successively
4th section of bed of SO 2 converter；The outlet of the 4th section of bed is successively through the 3rd steam superheater and described
After the heat exchange of four heat exchangers, into final absorption tower；First saturated vapor is after described the first steam superheater heating, for work
Industry drags steam turbine or steam turbine generator；Second saturated vapor sequentially passes through described the 3rd steam superheater and the second steam mistake
After hot device heating, for steam turbine generator.
According to above-mentioned flue gas acid preparing process waste heat Application way, it is characterised in that the SO2In flue gas, SO2Volume hundred
It is 22~28%, O to divide specific concentration2Concentration of volume percent is 6.5~10%.
According to above-mentioned flue gas acid preparing process waste heat Application way, it is characterised in that enter the SO of SO 2 converter2
Amount of flue gas emission and air total amount constitute the total gas for entering SO 2 converter, the oxygen sulphur ratio of total gas for 0.85~
0.90。
According to above-mentioned flue gas acid preparing process waste heat Application way, it is characterised in that the preposition bed, first paragraph bed
Layer, second segment bed, the 3rd section of bed, the Sulphur Dioxide rate of the 4th section of bed be respectively 68~70%, 74~76%, 90~
92%th, 95~97%, 98~99.5%.
According to above-mentioned flue gas acid preparing process waste heat Application way, it is characterised in that convey SO to described preposition bed2
The blast that the sulphur dioxide blower of flue gas is provided is identical with the blast that air blower is provided, and is higher than to described first paragraph bed
Convey SO2The blast that the sulphur dioxide blower of flue gas is provided.
According to above-mentioned flue gas acid preparing process waste heat Application way, it is characterised in that the sulphur dioxide blower and air
Blower fan is driven by the coaxial dual drive system being made up of motor and the industry dragging steam turbine, real by freewheel clutch
The conversion of existing drive device.
According to above-mentioned flue gas acid preparing process waste heat Application way, it is characterised in that first saturated vapor comes from
The high-temperature flue gas waste heat that the high-temperature flue gas waste heat boiler and blowing outlet of still that melting outlet of still is set during continual copper smelting are set
Boiler, the pressure of first saturated vapor is 4.0~4.2MPa.
According to above-mentioned flue gas acid preparing process waste heat Application way, it is characterised in that second saturated vapor comes from
The low temperature heat reclamation device that dry matter translocation is set, the pressure of second saturated vapor is 0.8~1.0MPa.
According to above-mentioned flue gas acid preparing process waste heat Application way, it is characterised in that the 3rd section of described bed gas output
60~70% enter in described First Heat Exchangers, and the 30~40% of the gas output of described the 3rd section of bed enters described second
In heat exchanger.
Beneficial effects of the present invention：
The present invention flue gas acid preparing process waste heat Application way can realize into converter flue gas flow and oxygen sulphur than optimization
Regulation and control, total volumetric flow rate is few, and efficiently, work done during compression needed for conveying is small, and power consumption is low for gas distribution mode；Can efficiently and utilize each section
Reaction bed outlet used heat, system heat balance is easy to keep and adjusted；Used heat is reclaimed using steam superheater, mesolow is improved
Steam quality, acting ability are strong, and generating efficiency is improved, while evaded the failure risk existed using waste heat boiler, economizer,
Safety guarantee is provided for production stable operation；Steam turbine direct Driving Fan is dragged using industry, it is to avoid heat energy → electric energy
Loss in efficiency in → mechanical energy transfer process, improves Waste Heat Reuse rate.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the flue gas acid preparing process waste heat Application way of the present invention.
Embodiment
The present invention produces high concentration SO according to continual copper smelting2The characteristics of flue gas, basing oneself upon sulfuric acid domestic manufacture of key equipment, there is provided one kind
The heat exchange process matched and Waste Heat Reuse method are distributed with flue gas acid preparing conversion ratio, is started with from material balance and heat balance,
Reasonable distribution conversion ratio, loadings are can determine that according to catalyst performance, set corresponding control measures, maintain optimal thermal balance shape
State, makes oxygen sulphur be easier to reach the conversion ratio of setting than adjustable, each section of reaction bed of optimization, realize the dense tolerance adaptability of gas it is wide in range,
Easy to operate easily-controllable, the reliable, target that Waste Heat Reuse rate is high.
As shown in figure 1, the SO 2 converter of the present invention includes preposition bed 1, first paragraph bed 2, second segment bed
3rd, the 3rd section of bed 4, the 4th section of bed 5.SO2In flue gas, SO2Concentration of volume percent is 22~28%, O2Percent by volume is dense
Spend for 6.5~10%.Sulfur dioxide flue gas is after preposition bed 1, and into double-absorption flow, double-absorption flow uses " 3+1 "
The form of section conversion.Preposition bed, first paragraph bed, second segment bed, the 3rd section of bed, the sulfur dioxide of the 4th section of bed turn
Rate is respectively 68~70%, 74~76%, 90~92%, 95~97%, 98~99.5%.A kind of flue gas acid preparing that the present invention is provided
Process waste heat Application way, purified, dried high concentration SO2Flue gas is conveyed by two sulphur dioxide blower mean allocations,
One sulphur dioxide blower 6 conveys half flue gas, and the dry air sent out with air blower 7 is mixed, successively through first after mixing
After heat exchanger 8, preposition heat exchanger 9 are heated, into preposition bed 1.Second half dioxy that another sulphur dioxide blower 10 is conveyed
Change sulphur flue gas after the heating of the second heat exchanger 11, after being mixed with the premenstrual outlet of preposition bed 1 for putting the heat exchange of heat exchanger 9, into two
Turn the two first paragraph beds 2 for inhaling flow.That is, preposition bed outlet is used to heat the gas for entering preposition bed.First paragraph bed 2
Outlet through the first steam superheater 12 heat the first saturated vapor after, enter back into second segment bed 3.The outlet of second segment bed 3
Enter the 3rd section of bed 4 after being exchanged heat through the 3rd heat exchanger 13.The 3rd section of outlet of bed 4 is through through the second steam superheater 14 heating the
After two steam, a part of outlet exchanges heat through First Heat Exchanger 8, another part outlet exchanges heat through the second heat exchanger 11, subsequently enters
High temperature absorption tower.That is, after the 3rd section bed outlet exchanges heat through the second steam superheater, a part of outlet, which is used to heat, enters preposition
The gas of bed, another part outlet is used to heat the sulfur dioxide flue gas into the first bed.It is preferred that, the 3rd section of bed goes out
Tolerance 60~70% enters in First Heat Exchanger 8, and 30~40% enter in the second heat exchanger 11.High temperature absorption tower outlet is successively through
Enter the 4th section of bed 5 after four heat exchangers 15 and the heating of the 3rd heat exchanger 13.The outlet of 4th section of bed 5 is successively through the 3rd steam
After the heat exchange of the heat exchanger 15 of superheater 16 and the 4th, into final absorption tower.4th section of bed outlet is used to heat the steaming of the second saturation
Vapour and high temperature absorption tower outlet.After first saturated vapor is heated through the first steam superheater 12, a part is used for industry dragging vapour
Turbine, another part is used for steam turbine generator.Second saturated vapor sequentially passes through the 3rd steam superheater 16 and the second steam mistake
After hot device 14 is heated, for steam turbine generator.Wherein, melting outlet of still is set during the first saturated vapor comes from continual copper smelting
The high-temperature flue gas waste heat boiler that the high-temperature flue gas waste heat boiler put and blowing outlet of still are set, the pressure of the first saturated vapor is
4.0~4.2MPa.Second saturated vapor comes from the low temperature heat reclamation device of dry matter translocation setting, the pressure of the second saturated vapor
For 0.8~1.0MPa.
First steam superheater, the second steam superheater and the 3rd steam superheater, are utilized respectively flue gas acid preparing process and change
The used heat of the used heat of the first paragraph bed exit gas of thermal flow process, the 4th section of bed and the 3rd section of bed exit gas, overheat connects
First steam of continuous copper metallurgy system production and the second steam of dry matter translocation low temperature exhaust heat recovery system production.Wherein the first saturation
After steam superheating, a part is used for industry dragging steam turbine direct drive sulphur dioxide blower and air blower, and another part is used
In after generating, the second saturated vapor overheat, generating is directly used in.
Industry dragging steam turbine direct drive sulphur dioxide blower and air blower, are quoted by industry dragging steam turbine and electricity
The coaxial dual drive system that motivation is constituted, drive device is arranged on blower fan both sides, configures freewheel clutch, passes through freewheel clutch
Realize the automatic conversion between drive device.When the original startup of blower fan or the reduction of superheated steam pressure and industry dragging steam turbine event
During barrier, industry drags steamer pusher side freewheel clutch automatic unbuckling, drives blower fan by motor；When industry dragging steam turbine work
When, motor side freewheel clutch automatic unbuckling.
The flue gas acid preparing process waste heat Application way of the present invention, into the SO of SO 2 converter2Amount of flue gas emission and sky
Gas total amount constitutes the total gas for entering SO 2 converter, and the oxygen sulphur ratio of total gas is 0.85~0.90.Total gas is determined
The oxygen sulphur ratio of body, further according to SO2Amount of flue gas emission, it is determined that the amount for the air that need to be incorporated.
Particularly, SO is conveyed to preposition bed2The blast that the sulphur dioxide blower of flue gas is provided is provided with air blower
Blast is identical, and conveys SO higher than to first paragraph bed2The blast that the sulphur dioxide blower of flue gas is provided.
The present invention is further described with specific embodiment below.
Embodiment 1
The high concentration SO that golden peak continual copper smelting system is produced2In flue gas during smelting, SO2Concentration of volume percent 25.5VOL%, O2Volume
Percent concentration 8.5VOL%.Purified, dried high concentration SO2Flue gas during smelting by two parallel configurations sulfur dioxide wind
Machine divides equally conveying, and half flue gas is sent out by sulphur dioxide blower, and the dry air sent out with air blower is mixed.Wherein, air
Amount of allocating is according to the oxygen sulphur of total gas than 0.88 and SO2Amount of flue gas emission is controlled.Mixed gas is successively through First Heat Exchanger, preceding
Put after heat exchanger heating, into preposition bed, design conversion ratio 69.5%；Preposition bed outlet is premenstrual put after heat exchanger heat exchange with
Second half flue gas heated through the second heat exchanger sent out by sulphur dioxide blower uniformly mixes, into the of double-absorption flow
One section of bed, designs conversion ratio 75%；One section of outlet removes heat, heating continual copper smelting melting waste heat through the first steam superheater
The first saturated vapor that boiler and blowing waste heat boiler are produced, enters back into second segment bed, designs conversion ratio 91%；Two sections of outlets
Exchanged heat through the 3rd heat exchanger, into the 3rd section of bed, design conversion ratio 96%；Three sections of outlets are through the second steam superheater removal portion
Divide heat, a part of gas（Account for three sections of outlets 62%）Into First Heat Exchanger 6, another part gas（Account for three sections of outlets 38%）Enter
Enter the second heat exchanger, remove after heat, into the high temperature absorption tower of dry matter translocation, high temperature absorption tower epimere outlet is through the 4th heat exchange
Enter the 4th section of bed after device, the heating of the 3rd heat exchanger, design conversion ratio 99%；Four sections of outlets are through the second steam superheater and
Four heat exchangers, which are removed, enters final absorption tower after heat.Come from continual copper smelting process after waste heat superheater using converting in flow
The first of the high-temperature flue gas waste heat boiler that the high-temperature flue gas waste heat boiler and blowing outlet of still that middle melting outlet of still is set are set satisfies
It is used for industry dragging steam turbine direct drive sulphur dioxide blower and air blower with a steam part, another part is used to send out
Second saturated vapor of the low temperature heat reclamation device for coming from dry matter translocation setting after electricity, overheat is directly used in generating.
Claims (9)
1. a kind of flue gas acid preparing process waste heat Application way, it is characterised in that this method is：SO2Flue gas is by two dioxies in parallel
Change sulphur blower fan mean allocation and convey, the SO of a sulphur dioxide blower conveying2The air that flue gas is conveyed with air blower is mixed,
Sequentially pass through after First Heat Exchanger, the heating of preposition heat exchanger, into the preposition bed of SO 2 converter, the preposition bed
Outlet after the preposition heat exchanger heat exchange, the SO conveyed with another sulphur dioxide blower heat through the second heat exchanger2
After flue gas mixing, into the first paragraph bed of SO 2 converter；The outlet of the first paragraph bed is through the first steam superheating
After device heat exchange, into the second segment bed of SO 2 converter；The outlet of the second segment bed exchanges heat through the 3rd heat exchanger
Enter the 3rd section of bed of SO 2 converter afterwards；After the outlet of the 3rd section of bed exchanges heat through the second steam superheater,
A part of outlet exchanges heat through described First Heat Exchanger heat exchange, another part outlet through the second described heat exchanger, subsequently enters
High temperature absorption tower；The outlet on described high temperature absorption tower enters after the 4th heat exchanger and described the 3rd heat exchanger heating successively
4th section of bed of SO 2 converter；The outlet of the 4th section of bed is successively through the 3rd steam superheater and described
After the heat exchange of four heat exchangers, into final absorption tower；First saturated vapor is after described the first steam superheater heating, for work
Industry drags steam turbine or steam turbine generator；Second saturated vapor sequentially passes through described the 3rd steam superheater and the second steam mistake
After hot device heating, for steam turbine generator.
2. flue gas acid preparing process waste heat Application way according to claim 1, it is characterised in that the SO2In flue gas, SO2
Concentration of volume percent is 22~28%, O2Concentration of volume percent is 6.5~10%.
3. flue gas acid preparing process waste heat Application way according to claim 1, it is characterised in that enter Sulphur Dioxide
The SO of device2Amount of flue gas emission and air total amount constitute the total gas for entering SO 2 converter, and the oxygen sulphur ratio of total gas is
0.85~0.90.
4. flue gas acid preparing process waste heat Application way according to claim 1, it is characterised in that the preposition bed,
One section of bed, second segment bed, the 3rd section of bed, the Sulphur Dioxide rate of the 4th section of bed be respectively 68~70%, 74~
76%th, 90~92%, 95~97%, 98~99.5%.
5. flue gas acid preparing process waste heat Application way according to claim 1, it is characterised in that to described preposition bed
Convey SO2The blast that the sulphur dioxide blower of flue gas is provided is identical with the blast that air blower is provided, and is higher than to described the
One section of bed conveys SO2The blast that the sulphur dioxide blower of flue gas is provided.
6. flue gas acid preparing process waste heat Application way according to claim 1, it is characterised in that the sulphur dioxide blower
With air blower by being driven by motor and the coaxial dual drive system that constitutes of industry dragging steam turbine, by surmount from
Clutch realizes the conversion of drive device.
7. flue gas acid preparing process waste heat Application way according to claim 1, it is characterised in that first saturated vapor
Come from the high temperature cigarette that the high-temperature flue gas waste heat boiler and blowing outlet of still that melting outlet of still is set during continual copper smelting are set
Gas waste heat boiler, the pressure of first saturated vapor is 4.0~4.2MPa.
8. flue gas acid preparing process waste heat Application way according to claim 1, it is characterised in that second saturated vapor
Come from the low temperature heat reclamation device of dry matter translocation setting, the pressure of second saturated vapor is 0.8~1.0MPa.
9. flue gas acid preparing process waste heat Application way according to claim 1, it is characterised in that the 3rd section of described bed
Gas output 60~70% enters in described First Heat Exchanger, and the 30~40% of the gas output of described the 3rd section of bed enters described
The second heat exchanger in.
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| CN201710218915.3A CN107055486B (en) | 2017-04-06 | 2017-04-06 | A kind of flue gas acid preparing process waste heat utilizes method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046221A (en) * | 2017-12-12 | 2018-05-18 | 中国恩菲工程技术有限公司 | A kind of method of metallurgical off-gas acid-making |
| CN109704294A (en) * | 2019-03-08 | 2019-05-03 | 长沙有色冶金设计研究院有限公司 | The method of the highly concentrated conversion system heat cascade utilization of sulfuric acid |
| CN112629276A (en) * | 2021-01-13 | 2021-04-09 | 易门铜业有限公司 | Multi-grade waste heat gradient upgrading power generation system and method |
| CN112679996A (en) * | 2021-01-15 | 2021-04-20 | 无锡东恒新能源科技有限公司 | Carbon black production method capable of recycling resources |
| CN112723319A (en) * | 2021-01-05 | 2021-04-30 | 长沙有色冶金设计研究院有限公司 | High concentration of SO2Method for preparing sulfuric acid by flue gas separation pre-conversion |
| CN114572939A (en) * | 2022-04-01 | 2022-06-03 | 陕西莹钰化工设备有限公司 | Original SO2Technology for preparing sulfuric acid by partial pre-conversion |
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| CN105056744A (en) * | 2015-09-20 | 2015-11-18 | 山西长林环保机械设备有限公司 | Flue gas waste heat recovery and desulfurization integrated process and device |
| CN105909330A (en) * | 2016-04-14 | 2016-08-31 | 东南大学 | Flue gas waste heat recovery and flue gas processing system based on organic Rankine cycle |
| CN105983331A (en) * | 2015-02-06 | 2016-10-05 | 上海东化环境工程有限公司 | Industrial sulfur-containing tail gas desulphurization technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105983331A (en) * | 2015-02-06 | 2016-10-05 | 上海东化环境工程有限公司 | Industrial sulfur-containing tail gas desulphurization technology |
| CN105056744A (en) * | 2015-09-20 | 2015-11-18 | 山西长林环保机械设备有限公司 | Flue gas waste heat recovery and desulfurization integrated process and device |
| CN105909330A (en) * | 2016-04-14 | 2016-08-31 | 东南大学 | Flue gas waste heat recovery and flue gas processing system based on organic Rankine cycle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046221A (en) * | 2017-12-12 | 2018-05-18 | 中国恩菲工程技术有限公司 | A kind of method of metallurgical off-gas acid-making |
| CN109704294A (en) * | 2019-03-08 | 2019-05-03 | 长沙有色冶金设计研究院有限公司 | The method of the highly concentrated conversion system heat cascade utilization of sulfuric acid |
| CN112723319A (en) * | 2021-01-05 | 2021-04-30 | 长沙有色冶金设计研究院有限公司 | High concentration of SO2Method for preparing sulfuric acid by flue gas separation pre-conversion |
| CN112629276A (en) * | 2021-01-13 | 2021-04-09 | 易门铜业有限公司 | Multi-grade waste heat gradient upgrading power generation system and method |
| CN112679996A (en) * | 2021-01-15 | 2021-04-20 | 无锡东恒新能源科技有限公司 | Carbon black production method capable of recycling resources |
| CN114572939A (en) * | 2022-04-01 | 2022-06-03 | 陕西莹钰化工设备有限公司 | Original SO2Technology for preparing sulfuric acid by partial pre-conversion |
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| Publication number | Publication date |
|---|---|
| CN107055486B (en) | 2019-03-12 |
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