CN106008132A - Gas separation process - Google Patents
Gas separation process Download PDFInfo
- Publication number
- CN106008132A CN106008132A CN201610339469.7A CN201610339469A CN106008132A CN 106008132 A CN106008132 A CN 106008132A CN 201610339469 A CN201610339469 A CN 201610339469A CN 106008132 A CN106008132 A CN 106008132A
- Authority
- CN
- China
- Prior art keywords
- tower
- propane
- propylene
- component
- ethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/005—Processes comprising at least two steps in series
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/04—Purification; Separation; Use of additives by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention belongs to the field of petrochemical industry and particularly relates to a gas separation process. The gas separation process includes: analyzing feed gas by an online analyzer; after component analysis is finished, inputting analysis data into chemical engineering software Aspen plus to perform simulation analysis; after simulation analysis is finished, setting every product quality requirement to obtain optimal operation conditions so as to carry out a separation process.
Description
Technical field
The invention belongs to petrochemical industry, be specifically related to a kind of gas separating technology.
Background technology
The overall energy consumption of gas separation unit is higher, and each behaviour's operation in post is complete by rule of thumb, is also to know to concrete principle
Half solves, and is held under same operating condition when processing capacity change, change of component.On the premise of reaching to separate essence, cause
A lot of energy loss.Under the big world of industry 4.0, it is contemplated that by device datumization, standardized production.So expecting
LNG gasifaction is separated digitized production, from raw material to product, carries out data parsing, standardized production.Edema caused by disorder of QI is conventional
Operating condition is the most fixing, the phenomenon of energy waste often occurs, and once device fluctuates, and substandard product occurs, behaviour
Adjusting the longest, it is qualified to adjust in 68 hours.It is badly in need of a kind of technical method this kind of situation to be changed, therefore releases this
Technical scheme.
Summary of the invention
The present invention is directed to the problems referred to above, it is provided that a kind of novel gas separating technology, this technology is by pre-separation gas first
It is analyzed through on-line analysis system, draws the content data of each component in pre-separation gas, recycle chemical engineering software
According to the data of on-line analysis, simulate gas component, thus draw optimal process conditions.Adopt this method and carry out gas and divide
From, reduce the energy consumption of gas separating technology.
To achieve these goals, the technical scheme that the application is taked is as follows:
A kind of gas separating technology, unstripped gas, after the analysis of in-line analyzer, the component analysis out of raw material, is adopted
Import chemical engineering software Aspen plus by the data analyzed, be simulated analyzing, after digital simulation, set the matter of each product
Amount requirement, draws optimal operating condition, and then carries out separating technology；
Described gas separating technology, specifically comprises the following steps that
Unstripped gas is in piping enters into propane tower, and after the effect of propane tower, C4 component is discharged from the bottom of propane tower
It is collected；Propane and the component lighter than propane are discharged from propane tower top, enter ethane tower through piping, ethane and lighter than ethane
Component gone out by ethane tower top row, and containing propylene component from the bottom of ethane tower discharge, and along pipeline enter crude propylene tower, warp
Crossing the effect of crude propylene tower, propane is collected from discharge at the bottom of crude propylene tower；And arrange from crude propylene tower top containing the component that propylene is more
Going out, enter in fine propylene tower, through the effect of fine propylene tower, propylene is discharged from top of fine propylene tower and is collected；
It is provided with in-line analyzer on the pipeline that described unstripped gas is connected with propane tower；Siemens's hydrion flame type exists
Line analysis instrument
Mainly comprising of unstripped gas: C2, propane, propylene, C4, C5, during on-line analysis, the key component of detection is: ethane,
Ethylene, propane, propylene, butane, butylene, C5.After the component analysis out of raw material, the data analyzed are used to import chemical engineering software
Aspen plus, is simulated analyzing.After digital simulation, the prescription of each product, such as purified propylene oxide can be set
98.5% (V%), can simulate optimal operating condition, according to analog data, is adjusted actual device.
The overall flow of edema caused by disorder of QI is led into, raw material components data are inputted, select suitable state, Constitute equation, fortune
Row can go out required product and operating condition.
This technology can carry out real-time operation adjustment to different component raw material, reduces the consumption of thermal source, such as raw material group at the bottom of tower
Dividing and lighten, then need to adjust in time capacity of returns, reduce capacity of returns, column bottom temperature reduces simultaneously, and thermal source at the bottom of the tower of required offer subtracts
Few, so reducing heat source stream consumption at the bottom of tower.
In sum, the edema caused by disorder of QI technique that the application provides can be come for the content of different gas components and each component
Regulation separates the process conditions needed for gas component, reduce can, it also avoid the infringement to equipment.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of gas separating technology
1 is in-line analyzer, and 2 is depropanizing tower, and 3 is dethanizer, and 4 is crude propylene tower, and 5 is fine propylene tower.
Detailed description of the invention
Embodiment 1
A kind of gas separating technology, unstripped gas, after the analysis of in-line analyzer, the component analysis out of raw material, is adopted
Import chemical engineering software Aspen plus by the data analyzed, be simulated analyzing, after digital simulation, set the matter of each product
Amount requirement, draws optimal operating condition, and then carries out separating technology；
Described gas separating technology, specifically comprises the following steps that
Unstripped gas is in piping enters into propane tower 2, and after the effect of propane tower 2, C4 component was arranged from propane tower 2 end
Go out to be collected；Propane and the component lighter than propane go out from propane tower 2 top row, enter ethane tower 3, ethane and compare second through piping
The component that alkane is light is gone out by ethane tower 3 top row, and the component containing propylene is from discharging at the bottom of ethane tower, and enters crude propylene along pipeline
Tower 4, through the effect of crude propylene tower 4, propane is discharged from crude propylene tower 4 end and is collected；And contain the more component of propylene from thick third
Alkene tower 4 top row goes out, and enters in fine propylene tower 5, and through the effect of fine propylene tower 5, propylene is discharged from top of fine propylene tower and is collected；Institute
It is provided with in-line analyzer on the pipeline that the unstripped gas stated is connected with propane tower 2.
Embodiment 2
When in in-line analyzer gained unstripped gas, the percentage ratio of each component is as shown in the table, the technological parameter of each tower
It is worth as shown in the table:
14t/h operation scheme
Embodiment 3
When in in-line analyzer gained unstripped gas, the percentage ratio of each component is as shown in the table, the technological parameter of each tower
It is worth as shown in the table:
15t/h operation scheme
Embodiment 4
When in in-line analyzer gained unstripped gas, the percentage ratio of each component is as shown in the table, the technological parameter of each tower
It is worth as shown in the table:
Embodiment 5
When in in-line analyzer gained unstripped gas, the percentage ratio of each component is as shown in the table, the technological parameter of each tower
It is worth as shown in the table:
Experimental example
Edema caused by disorder of QI technique and edema caused by disorder of QI technique described herein with prior art compare, and reach identical separating effect,
Steam consumption needed for record processes unstripped gas respectively, the results are shown in Table 1 and 2.It can be seen from the table, work described herein is utilized
Skill, has saved steam consumption, also saves cost.
Table 1
Table 2
Claims (2)
1. a gas separating technology, it is characterised in that unstripped gas goes out through the analysis of in-line analyzer, the component analysis of raw material
After Laiing, use the data analyzed to import chemical engineering software Aspen plus, be simulated analyzing, after digital simulation, set each
The prescription of individual product, draws optimal operating condition, and then carries out separating technology.
2. gas separating technology as claimed in claim 1, it is characterised in that gas separating technology, specifically comprises the following steps that
Unstripped gas is in piping enters into propane tower (2), and after the effect of propane tower (2), C4 component is from propane tower (2) end
Discharge is collected；Propane and the component lighter than propane go out from propane tower (2) top row, enter ethane tower (3), ethane through piping
And light component is gone out by ethane tower (3) top row than ethane, and the component containing propylene is from discharging at the bottom of ethane tower, and enters along pipeline
Entering crude propylene tower (4), through the effect of crude propylene tower (4), propane is discharged from crude propylene tower (4) end and is collected；And containing propylene relatively
Many components go out from crude propylene tower (4) top row, enter in fine propylene tower (5), and through the effect of fine propylene tower (5), propylene is from essence
Propylene tower top row goes out to be collected；
It is provided with in-line analyzer on the pipeline that described unstripped gas is connected with propane tower (2)；Siemens's hydrion flame type exists
Line analysis instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339469.7A CN106008132A (en) | 2016-05-20 | 2016-05-20 | Gas separation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339469.7A CN106008132A (en) | 2016-05-20 | 2016-05-20 | Gas separation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106008132A true CN106008132A (en) | 2016-10-12 |
Family
ID=57096613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610339469.7A Pending CN106008132A (en) | 2016-05-20 | 2016-05-20 | Gas separation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106008132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107118070A (en) * | 2017-05-11 | 2017-09-01 | 黑龙江安瑞佳石油化工有限公司 | A kind of new propylene refining method |
| CN107226776A (en) * | 2017-05-11 | 2017-10-03 | 黑龙江安瑞佳石油化工有限公司 | Feedstock pre-processing system and processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1088641A (en) * | 1964-07-20 | 1967-10-25 | Nii Sint Spirtov I Orch Produk | Method for separation of multicomponent gas mixtures |
| CN102491866A (en) * | 2011-11-30 | 2012-06-13 | 神华集团有限责任公司 | Olefin separation process and system |
-
2016
- 2016-05-20 CN CN201610339469.7A patent/CN106008132A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1088641A (en) * | 1964-07-20 | 1967-10-25 | Nii Sint Spirtov I Orch Produk | Method for separation of multicomponent gas mixtures |
| CN102491866A (en) * | 2011-11-30 | 2012-06-13 | 神华集团有限责任公司 | Olefin separation process and system |
Non-Patent Citations (3)
| Title |
|---|
| 孙献菊: "Aspen Plus软件在气体分馏装置中的应用", 《齐鲁石油化工》 * |
| 王玉清等: "流程模拟技术在气体分馏装置中的应用探讨", 《炼油与化工》 * |
| 赵贵征等: "气体分馏装置的流程模拟与优化", 《中外能源》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107118070A (en) * | 2017-05-11 | 2017-09-01 | 黑龙江安瑞佳石油化工有限公司 | A kind of new propylene refining method |
| CN107226776A (en) * | 2017-05-11 | 2017-10-03 | 黑龙江安瑞佳石油化工有限公司 | Feedstock pre-processing system and processing method |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
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| RJ01 | Rejection of invention patent application after publication |