CN109456788B - Reformate deoxygenation system - Google Patents
Reformate deoxygenation system Download PDFInfo
- Publication number
- CN109456788B CN109456788B CN201811499089.5A CN201811499089A CN109456788B CN 109456788 B CN109456788 B CN 109456788B CN 201811499089 A CN201811499089 A CN 201811499089A CN 109456788 B CN109456788 B CN 109456788B
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- China
- Prior art keywords
- valve
- pipeline
- fuel gas
- bypass
- gas supplementing
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G7/00—Distillation of hydrocarbon oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G7/00—Distillation of hydrocarbon oils
- C10G7/12—Controlling or regulating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
- F23K5/005—Gaseous fuel from a central source to a plurality of burners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2400/00—Pretreatment and supply of gaseous fuel
- F23K2400/20—Supply line arrangements
- F23K2400/201—Control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/18—Groups of two or more valves
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The application relates to the technical field of deoxygenation technology of reformate, environmental protection and energy saving of tail gas combustion, belongs to the field of chemical industry, and particularly relates to a deoxygenation system of reformate. Comprises a fuel gas supplementing pipeline, a deoxidizing tower reflux tank, a nitrogen pipeline and an exhaust pipeline; the fuel gas supplementing pipeline is connected to the deoxidizing tower reflux tank, the nitrogen pipeline is connected to the deoxidizing tower reflux tank, and the deoxidizing tower reflux tank is connected with the exhaust pipeline. The application adds a fuel gas supplementing line on the top of the reflux tank, mixes the fuel gas supplementing line with a small amount of light components generated by the deoxidizing tower, adds a fuel gas pipeline for heating the furnace, and supplies two flame nozzles independently for the heating furnace.
Description
Technical Field
The application relates to the technical field of deoxygenation technology of reformate, environmental protection and energy saving of tail gas combustion, belongs to the field of chemical industry, and particularly relates to a deoxygenation system of reformate.
Background
The device outsources the reformate and has trace water, free oxygen and trace light components, and during normal production, a reflux tank at the top of the deoxidization tower is filled with nitrogen, and a small amount of light components at the top of the tower are discharged to a torch, so that a large amount of nitrogen in recovered gas of the torch is caused, and nitrogen oxides in the heating furnace are easily out of standard.
Disclosure of Invention
In view of the defects of the prior art, from the aspects of energy conservation and environmental protection, the application adds a fuel gas supplementing line on the top of the reflux tank, mixes the fuel gas supplementing line with a small amount of light components generated by the deoxidizing tower, adds a fuel gas pipeline for heating the furnace, and supplies two flame nozzles independently for the heating furnace.
In order to achieve the above purpose, the technical scheme of the application is that the reformate deoxygenation system comprises a fuel gas supplementing pipeline, a deoxygenation tower reflux tank, a nitrogen pipeline and an exhaust pipeline; the fuel gas supplementing pipeline is connected to the deoxidizing tower reflux tank, the nitrogen pipeline is connected to the deoxidizing tower reflux tank, and the deoxidizing tower reflux tank is connected with the exhaust pipeline.
Further, the exhaust pipeline is respectively connected with a torch pipeline and a heating furnace nozzle pipeline; the torch pipeline is provided with a torch pipeline valve group, the heating furnace nozzle pipeline is provided with a three-valve group, and a heating furnace nozzle pipeline cut-off valve is arranged in the middle of the three-valve group.
Further, the flare line valve bank includes a flare line shut-off valve.
Further, a pressure control valve group is arranged on the exhaust pipe line.
Further, the pressure control valve group comprises a first valve, a first regulating valve, a second valve, a first bypass pipeline, a first bypass valve and a first discharge valve; the first valve, the first regulating valve and the second valve are sequentially arranged on the exhaust pipe line, the exhaust pipe line is connected with the first bypass pipeline, the first bypass pipeline is provided with the first bypass valve, and the exhaust pipe line between the first valve and the first regulating valve is connected with the first discharge valve.
Further, the fuel gas supplementing pipeline is provided with three valve groups and a fuel gas supplementing adjusting valve group.
Further, the fuel gas feeding regulating valve group comprises a third valve, a second regulating valve, a fourth valve, a second bypass pipeline, a second bypass valve and a second discharge valve; the third valve, the second regulating valve and the fourth valve are sequentially arranged on the fuel gas supplementing pipeline, the fuel gas supplementing pipeline is connected with the second bypass pipeline, the second bypass pipeline is provided with the second bypass valve, and the second discharge valve is arranged between the third valve and the second regulating valve.
Further, the fuel gas supplementing pipeline is a DN50 pipeline.
For further explanation of the application, three valve groups are added at the reserved opening of the fuel gas main pipe, a DN50 pipeline is led to the reserved opening of the reflux tank of the deoxidizing tower, and a control valve group (a fuel gas filling regulating valve group) is added on the pipeline. And (3) modifying a torch flow in a reflux tank area of the deoxidizing tower, and adding a pressure control valve at the position of the original three valve groups of the internal combustion engine torch to control the pressure of the reflux tank. And a torch pipeline cut-off valve is added in the middle of the three valve groups of the fire removing torch, one path of pipeline for the heating furnace is added, the three valve groups are arranged, and a heating furnace nozzle pipeline cut-off valve is added in the middle. In the normal operation process, fuel gas is fed into the reflux tank through a fuel gas feeding pipeline, the fuel gas is mixed with a small amount of light components in the reflux tank, the pressure of the pressure reflux tank is controlled through a pressure control valve group, the mixed fuel gas is fed into a heating furnace through a heating furnace burner pipeline, 1# and 2# burners are independently supplied, and a flame arrester device is arranged in front of the heating furnace. In the normal operation process, the cut-off valve of the flame pipe line of the deflagration torch is in a closed state, if the heating furnace is interlocked, the cut-off valve of the flame pipe line of the heating furnace is closed, the cut-off valve of the flame pipe line of the torch is opened, and the flame pipe line is discharged to the torch.
The application has the beneficial effects that: the operation pressure of the stabilizer can be improved, the operation elasticity of the deoxidizing tower is increased, the fuel gas can be recovered maximally, the environment pollution caused by torch combustion is avoided, and the energy-saving and environment-friendly effects are achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic diagram of a three-valve set;
in the figure: 1. fuel gas feed line, 2, deoxidizer reflux drum, 3, nitrogen line, 4, exhaust line, 5, flare line, 6, heating furnace nozzle line, 7, heating furnace nozzle line three valve bank, 8, flare line valve bank, 9, flare line shut-off valve, 10, pressure control valve bank, 10.1, first valve, 10.2, first regulating valve, 10.3, second valve, 10.4, first bypass line, 10.5 first bypass valve, 10.6, first discharge valve, 11, fuel gas feed line three valve bank, 12, fuel gas feed regulating valve bank, 12.1, third valve, 12.2, second regulating valve, 12.3, fourth valve, 12.4, second bypass line, 12.5, second bypass valve, 12.6, second discharge valve, 13, heating furnace nozzle line shut-off valve, 11.1, first hand valve, 11.2, splay blind plate, 11.3, one-way valve, 11.4, 11.5, pilot valve.
Detailed Description
Example 1
A reformate deoxygenation system comprising a fuel gas feed line 1, a deoxygenation tower reflux drum 2, a nitrogen line 3, and an exhaust line 4; the fuel gas feeding line 1 is connected to the deoxidizing column reflux drum 2, the nitrogen gas line 3 is connected to the deoxidizing column reflux drum 2, and the deoxidizing column reflux drum 2 is connected to the exhaust line 4.
Further, the exhaust pipeline 4 is respectively connected with a torch pipeline 5 and a heating furnace nozzle pipeline 6; the torch pipeline 5 is provided with a torch pipeline valve group 8, the heating furnace nozzle pipeline 6 is provided with a heating furnace nozzle pipeline three valve group 7, and a heating furnace nozzle pipeline cut-off valve 13 is arranged in the middle of the heating furnace nozzle pipeline three valve group 7.
The three-valve group in the application comprises two hand valves (a first hand valve 11.1 and a second hand valve 11.4), a one-way valve 11.3, a splayed blind plate 11.2 and a shower guide 11.5.
Further, the flare line valve set 8 includes a flare line shut-off valve 9.
Further, a pressure control valve group 10 is arranged on the exhaust pipeline 4.
Further, the pressure control valve set 10 includes a first valve 10.1, a first regulating valve 10.2, a second valve 10.3, a first bypass line 10.4, a first bypass valve 10.5, and a first drain valve 10.6; the first valve 10.1, the first regulating valve 10.2 and the second valve 10.3 are sequentially arranged on the exhaust pipeline 4, the exhaust pipeline 4 is connected with the first bypass pipeline 10.4, the first bypass pipeline 10.4 is provided with the first bypass valve 10.5, and the exhaust pipeline 4 between the first valve 10.1 and the first regulating valve 10.2 is connected with the first exhaust valve 10.6.
Further, a fuel gas supply line three-valve group 11 and a fuel gas supply adjusting valve group 12 are provided on the fuel gas supply line 1.
Further, the fuel gas supply adjusting valve group 12 includes a third valve 12.1, a second adjusting valve 12.2, a fourth valve 12.3, a second bypass line 12.4, a second bypass valve 12.5, and a second discharge valve 12.6; the third valve 12.1, the second regulating valve 12.2 and the fourth valve 12.3 are sequentially arranged on the fuel gas supplementing pipeline 1, the fuel gas supplementing pipeline 1 is connected with the second bypass pipeline 12.4, the second bypass pipeline 12.4 is provided with the second bypass valve 12.5, and the second discharge valve 12.6 is arranged between the third valve 12.1 and the second regulating valve 12.2.
Further, the fuel gas supplementing line 1 is a DN50 line.
The working procedure of this embodiment is: the fuel gas is fed into the reflux tank 2 of the deoxidizing tower through the fuel gas feeding regulating valve group 12, the pressure of the reflux tank is controlled to be 0.07MPa through the pressure control valve group 10, the mixed fuel gas is fed into the heating furnaces 1# and 2# fire nozzles through the heating furnace fire nozzle pipeline cut-off valve 13, and a flame arrester device is arranged in front of the heating furnace. In the normal operation process, the torch pipeline cut-off valve 9 for going to the torch is in a closed state, if the heating furnace is interlocked, the heating furnace nozzle pipeline cut-off valve 13 is closed, the torch pipeline cut-off valve 9 is opened, and the gas is discharged to the torch.
The above description is only of the preferred embodiments of the present application, and is not intended to limit the application in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present application.
Claims (5)
1. The reformate deoxidization system is characterized in that: comprises a fuel gas supplementing pipeline, a deoxidizing tower reflux tank, a nitrogen pipeline and an exhaust pipeline; the fuel gas supplementing pipeline is connected to the deoxidizing tower reflux tank, the nitrogen pipeline is connected to the deoxidizing tower reflux tank, and the deoxidizing tower reflux tank is connected to the exhaust pipeline; the exhaust pipeline is respectively connected with a torch pipeline and a heating furnace nozzle removing pipeline; the torch pipeline is provided with a torch pipeline valve group, the heating furnace nozzle pipeline is provided with a three-valve group, and a heating furnace nozzle pipeline cut-off valve is arranged in the middle of the three-valve group; the flare line valve bank comprises a flare line cut-off valve; and a pressure control valve group is arranged on the exhaust pipe line.
2. The reformate deoxygenation system of claim 1 wherein: the pressure control valve group comprises a first valve, a first regulating valve, a second valve, a first bypass pipeline, a first bypass valve and a first discharge valve; the first valve, the first regulating valve and the second valve are sequentially arranged on the exhaust pipe line, the exhaust pipe line is connected with the first bypass pipeline, the first bypass pipeline is provided with the first bypass valve, and the exhaust pipe line between the first valve and the first regulating valve is connected with the first discharge valve.
3. The reformate deoxygenation system of claim 1 wherein: and the fuel gas supplementing pipeline is provided with a three-valve group and a fuel gas supplementing regulating valve group.
4. A reformate deoxygenation system in accordance with claim 3 wherein: the fuel gas supplementing regulating valve group comprises a third valve, a second regulating valve, a fourth valve, a second bypass pipeline, a second bypass valve and a second discharge valve; the third valve, the second regulating valve and the fourth valve are sequentially arranged on the fuel gas supplementing pipeline, the fuel gas supplementing pipeline is connected with the second bypass pipeline, the second bypass pipeline is provided with the second bypass valve, and the second discharge valve is arranged between the third valve and the second regulating valve.
5. The reformate deoxygenation system of claim 1 wherein: the fuel gas supplementing pipeline is a DN50 pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811499089.5A CN109456788B (en) | 2018-12-08 | 2018-12-08 | Reformate deoxygenation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811499089.5A CN109456788B (en) | 2018-12-08 | 2018-12-08 | Reformate deoxygenation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109456788A CN109456788A (en) | 2019-03-12 |
| CN109456788B true CN109456788B (en) | 2023-10-13 |
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ID=65612772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811499089.5A Active CN109456788B (en) | 2018-12-08 | 2018-12-08 | Reformate deoxygenation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109456788B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103209929A (en) * | 2010-11-16 | 2013-07-17 | Amt国际有限公司 | Process and apparatus for removal of oxygen from seawater |
| CN205740904U (en) * | 2016-06-29 | 2016-11-30 | 北京石油化工工程有限公司 | Petroleum naphtha hydrogenation refines low pressure deoxidation and the system of charging heat exchange optimization |
| CN209292295U (en) * | 2018-12-08 | 2019-08-23 | 大连福佳·大化石油化工有限公司 | A kind of reformate deoxygenation system |
-
2018
- 2018-12-08 CN CN201811499089.5A patent/CN109456788B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103209929A (en) * | 2010-11-16 | 2013-07-17 | Amt国际有限公司 | Process and apparatus for removal of oxygen from seawater |
| CN205740904U (en) * | 2016-06-29 | 2016-11-30 | 北京石油化工工程有限公司 | Petroleum naphtha hydrogenation refines low pressure deoxidation and the system of charging heat exchange optimization |
| CN209292295U (en) * | 2018-12-08 | 2019-08-23 | 大连福佳·大化石油化工有限公司 | A kind of reformate deoxygenation system |
Non-Patent Citations (1)
| Title |
|---|
| 李红华.加快燃气轮机在石化企业的应用.节能.2005,(第02期),第24-27页. * |
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| CN109456788A (en) | 2019-03-12 |
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