CN108910835A - A kind of sulfur trioxide stimulation job control optimization device - Google Patents
A kind of sulfur trioxide stimulation job control optimization device Download PDFInfo
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- CN108910835A CN108910835A CN201810826873.6A CN201810826873A CN108910835A CN 108910835 A CN108910835 A CN 108910835A CN 201810826873 A CN201810826873 A CN 201810826873A CN 108910835 A CN108910835 A CN 108910835A
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- Prior art keywords
- niacin
- circulation acid
- cooler
- connect
- circulation
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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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of sulfur trioxide stimulation jobs to control optimization device, including the first niacin tower, first circulation acid tank, first circulation acid cooler, the first finished product cooler, the second niacin tower, second circulation acid tank, second circulation acid cooler, niacin underground tank, niacin preheater, sulfur trioxide condenser and niacin evaporator, it is characterised in that：The exit of the first circulation acid cooler is connect by the first connecting tube with the outlet of second circulation acid cooler, it is connect by the second connecting tube with niacin underground tank at the niacin preheater bypass outlet, the niacin underground tank is connect by third connecting tube with the first finished product cooler, and niacin underground tank is equipped with adding tube, the design operation is simple, comprehensive practical is strong, use easy to spread.
Description
Technical field：
The present invention relates to sulfur trioxide production technical fields, and in particular to a kind of sulfur trioxide stimulation job control optimization dress
It sets.
Background technique：
Sulfuric acid plant sulfur trioxide device shows class and produces 25 tons, is not able to satisfy market needs.Currently used technique be by
The evaporation of 109% niacin is condensed into sulfur trioxide, however niacin evaporator returns that acid acid is dense to be not less than 104.5%, if being lower than
104.5% pair of niacin evaporator just has to be corroded to a certain degree.Therefore 109% niacin class's yield is certain, and the yield of sulfur trioxide is just
(109% niacin is 40 niacin, and 104.5 niacin are 20 niacin) can not be improved.
Summary of the invention：
The prior art is difficult to meet the needs of people, and to solve the above problems, the invention proposes one kind three
Sulfur oxide stimulation job control optimization device.
To achieve the above object, the present invention provides the following technical solutions：A kind of sulfur trioxide stimulation job control optimization dress
It sets, including the first niacin tower, first circulation acid tank, first circulation acid cooler, the first finished product cooler, the second niacin tower,
Two circulation acid tanks, second circulation acid cooler, niacin underground tank, niacin preheater, sulfur trioxide condenser and niacin evaporator,
It is characterized in that：The exit of the first circulation acid cooler passes through the outlet of the first connecting tube and second circulation acid cooler
It connects, is connect by the second connecting tube with niacin underground tank at the niacin preheater bypass outlet, the niacin underground tank is logical
It crosses third connecting tube to connect with the first finished product cooler, and niacin underground tank is equipped with adding tube.
Preferably, the first niacin tower, first circulation acid tank, first circulation acid cooler and the first finished product cooler point
Not Wei 20 niacin towers, 20 circulation acid tanks, 20 circulation acid coolers, 20 finished product coolers, the first niacin tower bottom is connected with
First circulation acid tank, and the first niacin column overhead is connect by pipeline with first circulation acid cooler entrance, described first follows
The exit of naphthenic acid cooler is connect by pipeline with first circulation acid tank, and the exit of first circulation acid cooler passes through pipe
Road is connect with the first finished product cooler.First niacin tower only produces 20 niacin, most is cooling through first circulation acid for 20 niacin
Absorption system carrys out flue gas from bottom to top to the cooling laggard first niacin tower of device from top to bottom, into first circulation acid tank, a small portion
Lease making the first finished product cooler produces 20 niacin finished products.
Preferably, the second niacin tower, second circulation acid tank and second circulation acid cooler are respectively 40 niacin towers, 40
Acid tank and 40 circulation acid coolers are recycled, the second niacin tower bottom is connected with second circulation acid tank, and the second niacin tower tower
Top connect by pipeline with second circulation acid cooler entrance, the exit of the second circulation acid cooler pass through pipeline and
The connection of second circulation acid tank, and the exit of second circulation acid cooler is connect by pipeline with niacin preheater entrance, institute
The exit for stating niacin preheater is connect by pipeline with niacin base of evaporator entrance, and niacin evaporator upper end is equipped with
Exhaust pipe, the exhaust pipe are connect with sulfur trioxide condenser, and niacin evaporator side is preheated by return pipe and niacin
The reflux entrance of device connects, and is connect by pipeline with second circulation acid tank at the bypass outlet of the niacin preheater.Second
40 niacin of niacin tower production enter niacin evaporator through niacin preheater, and the gas phase sulfur trioxide flue gas evaporated enters three oxygen
Change sulfur condenser and condense finished product sulfur trioxide, 20 acid of liquid phase returns to second circulation with the 40 niacin heat exchange come in through niacin preheater
Acid tank continues concentrate into 40 niacin, uses for evaporation.
Compared with prior art, the beneficial effects of the invention are as follows：
3 connecting tubes are added on original device, the first niacin tower is not produced into 20 niacin, sell sulfur trioxide according to outer
Amount carries out concentrate, the niacin of concentrate is exported by the first connecting tube into second circulation acid cooler, for supplementing second circulation
Acid tank liquid level.20 niacin that niacin evaporator is returned are returned directly to niacin underground tank, then pass through not into second circulation acid tank
Adding tube add 98% acid control 20 Nicotinics, then by third connecting tube enter the first finished product cooler produce 20 niacin at
Product are constructed and easy to operate so that neither reducing by 20 niacin amounts improves sulfur trioxide yield again；It will reduce by 98 acid yields, improve
Sulfur trioxide yield；The corrosion of niacin evaporator is reduced, and service life extends；
The Economic and Efficiency Analysis generated after implementation：
Year volume increase sulfur trioxide amount：20 ton/class × 3 class × 330=19800 tons；
It is young to produce 98% acid：19800 80 × 100=24750 tons of ÷；
Annual return：Ten thousand yuan of 19800 × 500-24750 × 50=866.25 (500 yuan of profit of sulfur trioxide ton acid, 98% acid
50 yuan of profit)；
As long as 5,000 yuan of investment in technological transformation expense, primary operational control is optimized.
Detailed description of the invention：
Fig. 1 is overall structure diagram of the invention；
In figure：The first niacin of 1- tower, 2- first circulation acid tank, the second niacin of 3- tower, 4- second circulation acid tank, 5- second connect
Adapter tube, 6- niacin underground tank, 7- adding tube, 8- niacin evaporator, 9- niacin preheater, 10- third connecting tube, 11- first connect
Adapter tube, 12- second circulation acid cooler, the first finished product of 13- cooler, 14- first circulation acid cooler, 15- sulfur trioxide are cold
Condenser, 16- exhaust pipe.
Specific embodiment：
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Embodiment 1, a kind of sulfur trioxide stimulation job control optimization device, including the first niacin tower 1, first circulation acid tank
2, first circulation acid cooler 14, the first finished product cooler 13, the second niacin tower 3, second circulation acid tank 4, second circulation acid are cold
But device 12, niacin underground tank 6, niacin preheater 9, sulfur trioxide condenser 15 and niacin evaporator 8, the first circulation acid are cold
But the exit of device 14 is connect by the first connecting tube 11 with the outlet of second circulation acid cooler 12, the niacin preheater 9
Connect with niacin underground tank 6 at bypass outlet by the second connecting tube 5, the niacin underground tank 6 pass through third connecting tube 10 and
The connection of first finished product cooler 13, and niacin underground tank 6 is equipped with adding tube 7.
The first niacin tower 1, first circulation acid tank 2, first circulation acid cooler 14 and the first finished product cooler 13 divide
Not Wei 20 niacin towers, 20 circulation acid tanks, 20 circulation acid coolers and 20 finished product coolers, 1 bottom of the first niacin tower connection
There is first circulation acid tank 2, and 1 tower top of the first niacin tower is connect by pipeline with 14 entrance of first circulation acid cooler, it is described
The exit of first circulation acid cooler 14 is connect by pipeline with first circulation acid tank 2, and first circulation acid cooler 14
Exit is connect by pipeline with the first finished product cooler 13.First 1, niacin tower produces 20 niacin, most warp of 20 niacin
Absorption system carrys out flue gas from bottom to top to the cooling laggard first niacin tower 1 of first circulation acid cooler 14 from top to bottom, into the
One circulation acid tank 2, sub-fraction produce 20 niacin finished products through the first finished product cooler 13.
The second niacin tower 3, second circulation acid tank 4 and second circulation acid cooler 12 respectively 40 niacin towers, 40 are followed
Naphthenic acid slot and 40 circulation acid coolers, 3 bottom of the second niacin tower is connected with second circulation acid tank 4, and 3 tower of the second niacin tower
Top is connect by pipeline with 12 entrance of second circulation acid cooler, and the exit of the second circulation acid cooler 12 passes through pipe
Road is connect with second circulation acid tank 4, and the exit of second circulation acid cooler 12 passes through pipeline and 9 entrance of niacin preheater
Connection, the exit of the niacin preheater 9 at pipeline and 8 bottom inlet of niacin evaporator by connecting, the niacin evaporation
8 upper end of device is equipped with exhaust pipe 16, and the exhaust pipe 16 is connect with sulfur trioxide condenser 15, and 8 side of niacin evaporator is logical
It crosses return pipe to connect with the reflux entrance of niacin preheater 9, passes through pipeline and the at the bypass outlet of the niacin preheater 9
Two circulation acid tanks 4 connect.40 niacin of the second niacin tower 3 production enter niacin evaporator 8 through niacin preheater 9, evaporate
Gas phase sulfur trioxide flue gas enters sulfur trioxide condenser 15 by exhaust pipe 16 and condenses finished product sulfur trioxide, and 20 acid of liquid phase is through cigarette
Sour preheater 9 returns to 4 continuation concentrates with the 40 niacin heat exchange come in into 40 niacin, uses for evaporation.
First niacin tower is not produced 20 when in use for sulfur trioxide stimulation job control optimization device by the present invention
Niacin carries out concentrate according to sulfur trioxide amount is sold outside, and the niacin of concentrate is cooling into second circulation acid by the first connecting tube 11
Device 12 exports, for supplementing 12 liquid level of second circulation acid tank.20 niacin that niacin evaporator 8 is returned are not into second circulation acid tank
4, it is returned directly to niacin underground tank 6, then by adding tube 7 plus 98% acid 20 Nicotinics of control, is then connected by third
Pipe 10 enters the first finished product cooler 13 and produces 20 niacin finished products, so that neither reducing by 20 niacin amounts improves sulfur trioxide production again
Amount.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of sulfur trioxide stimulation job control optimization device, including the first niacin tower, first circulation acid tank, first circulation acid
Cooler, the first finished product cooler, the second niacin tower, second circulation acid tank, second circulation acid cooler, niacin underground tank, cigarette
Sour preheater, sulfur trioxide condenser and niacin evaporator, it is characterised in that：The exit of the first circulation acid cooler is logical
It crosses the first connecting tube to connect with the outlet of second circulation acid cooler, passes through the second connection at the niacin preheater bypass outlet
Pipe is connect with niacin underground tank, and the niacin underground tank is connect by third connecting tube with the first finished product cooler, and niacin
Lower slot is equipped with adding tube.
2. a kind of sulfur trioxide stimulation job control optimization device according to claim 1, it is characterised in that：Described first
Niacin tower, first circulation acid tank, first circulation acid cooler and the first finished product cooler are respectively 20 niacin towers, 20 recycle acids
Slot, 20 circulation acid coolers, 20 finished product coolers, the first niacin tower bottom are connected with first circulation acid tank, and the first cigarette
Acid tower tower top is connect by pipeline with first circulation acid cooler entrance, and the exit of the first circulation acid cooler passes through
Pipeline is connect with first circulation acid tank, and the exit of first circulation acid cooler is connected by pipeline and the first finished product cooler
It connects.
3. a kind of sulfur trioxide stimulation job control optimization device according to claim 1, it is characterised in that：Described second
Niacin tower, second circulation acid tank and second circulation acid cooler are respectively that 40 niacin towers, 40 circulation acid tanks and 40 recycle acids are cooling
Device, the second niacin tower bottom is connected with second circulation acid tank, and the second niacin column overhead passes through pipeline and second circulation acid
It being connected at cooler inlet, the exit of the second circulation acid cooler is connect by pipeline with second circulation acid tank, and the
The exit of two circulation acid coolers is connect by pipeline with niacin preheater entrance, and the exit of the niacin preheater is logical
Piping is connect with niacin base of evaporator entrance, and niacin evaporator upper end is equipped with exhaust pipe, the exhaust pipe and three
Sulfur condenser connection is aoxidized, niacin evaporator side is connect by return pipe with the reflux entrance of niacin preheater, institute
It states and is connect by pipeline with second circulation acid tank at the bypass outlet of niacin preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826873.6A CN108910835B (en) | 2018-07-25 | 2018-07-25 | Sulfur trioxide yield increase operation control optimization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826873.6A CN108910835B (en) | 2018-07-25 | 2018-07-25 | Sulfur trioxide yield increase operation control optimization device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108910835A true CN108910835A (en) | 2018-11-30 |
| CN108910835B CN108910835B (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810826873.6A Active CN108910835B (en) | 2018-07-25 | 2018-07-25 | Sulfur trioxide yield increase operation control optimization device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3296096A (en) * | 1961-08-24 | 1967-01-03 | Staveley Iron & Chemical Compa | Recovery of sulfur trioxide by distillation while controlling a process variable in response to the dielectric constant |
| CN2863760Y (en) * | 2005-09-27 | 2007-01-31 | 上海宁松热能环境工程有限公司 | Apparatus for preparation liquid sulfur trioxide from oleum |
| CN202369391U (en) * | 2011-12-14 | 2012-08-08 | 浙江嘉化能源化工股份有限公司 | Industrialized production device for liquid sulfur trioxide |
| CN102530885B (en) * | 2011-12-14 | 2013-07-24 | 浙江嘉化能源化工股份有限公司 | Industrialized production method for high-purity sulfuric acid |
| CN206858168U (en) * | 2017-04-21 | 2018-01-09 | 中国石油化工股份有限公司 | A kind of device that the smoke concentrated sulfuric acid is prepared with the concentrated sulfuric acid |
-
2018
- 2018-07-25 CN CN201810826873.6A patent/CN108910835B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3296096A (en) * | 1961-08-24 | 1967-01-03 | Staveley Iron & Chemical Compa | Recovery of sulfur trioxide by distillation while controlling a process variable in response to the dielectric constant |
| CN2863760Y (en) * | 2005-09-27 | 2007-01-31 | 上海宁松热能环境工程有限公司 | Apparatus for preparation liquid sulfur trioxide from oleum |
| CN202369391U (en) * | 2011-12-14 | 2012-08-08 | 浙江嘉化能源化工股份有限公司 | Industrialized production device for liquid sulfur trioxide |
| CN102530885B (en) * | 2011-12-14 | 2013-07-24 | 浙江嘉化能源化工股份有限公司 | Industrialized production method for high-purity sulfuric acid |
| CN206858168U (en) * | 2017-04-21 | 2018-01-09 | 中国石油化工股份有限公司 | A kind of device that the smoke concentrated sulfuric acid is prepared with the concentrated sulfuric acid |
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| Publication number | Publication date |
|---|---|
| CN108910835B (en) | 2020-04-07 |
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