CN208517350U - A kind of hydrocarbon-rich gas reutilization system generated in coking plant - Google Patents
A kind of hydrocarbon-rich gas reutilization system generated in coking plant Download PDFInfo
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- CN208517350U CN208517350U CN201821004723.9U CN201821004723U CN208517350U CN 208517350 U CN208517350 U CN 208517350U CN 201821004723 U CN201821004723 U CN 201821004723U CN 208517350 U CN208517350 U CN 208517350U
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Abstract
A kind of hydrocarbon-rich gas reutilization system generated in coking plant, hydrocarbon-rich pipeline therein is used to draw the hydrocarbon-rich gas isolated in the contact cooling tower top knockout drum in coking plant, the lighter hydrocarbons that ngl pipeline is used to generate diesel oil stripper top in diesel hydrotreating unit are drawn, the tower top oil gas that fractionator overhead generates also is drawn with pipeline, successively by fractionation tower top water cooler after three's mixing, fractionation tower overhead gas liquid knockout drum and air compressor machine are sent in absorbing-stabilizing system, and dry gas product is separated into absorbing-stabilizing system, liquid hydrocarbon product and gasoline products.The tower top oil gas that the utility model generates hydrocarbon-rich gas, lighter hydrocarbons and fractionator overhead carries out mixed processing, it is ultimately delivered in absorbing-stabilizing system, to isolate high added value ingredient therein, ultimately form dry gas product, liquid hydrocarbon product and gasoline products, the high added value component in hydrocarbon-rich gas and lighter hydrocarbons is effectively utilized, improves economic benefit.
Description
Technical field
The utility model relates to the coking plant into petrochemical industry, generated in specifically a kind of coking plant
Hydrocarbon-rich gas reutilization system.
Background technique
In the prior art, hydrocarbon-rich gas (the mainly contact cooling tower that the contact cooling system in coking plant generates
The top gas phase isolated in the knockout drum of top) it is often the flare system being directly discharged into coking plant, as combustion gas
What body was utilized, but due to containing a large amount of high added value component in hydrocarbon-rich gas, it is this directly as burning gases
Mode results in the waste of hydrocarbon-rich gas；
Likewise, gas (the predominantly gas phase of liquefied gas component, letter that diesel hydrotreating unit diesel oil stripper top generates
Claim lighter hydrocarbons), and it is directly entered high pressure gas system, it is burnt up as full factory's furnace fuel with gas, equally will cause a large amount of height
The waste of value-added product.
Utility model content
Hydrocarbon-rich gas and lighter hydrocarbons to solve to generate in coking plant and diesel hydrotreating unit are directly fired as burning gases
The problem of existing high value added product wastes when burning, the utility model provide the hydrocarbon-rich gas generated in a kind of coking plant
Reutilization system, the tower top oil gas which generates hydrocarbon-rich gas, lighter hydrocarbons and fractionator overhead carry out mixed processing,
It is ultimately delivered in absorbing-stabilizing system, to isolate high added value ingredient therein, ultimately forms dry gas product, liquid hydrocarbon
Product and gasoline products are effectively utilized the high added value component in hydrocarbon-rich gas and lighter hydrocarbons, improve economic benefit.
Technical solutions adopted by the utility model to solve the above technical problems are as follows: the richness generated in a kind of coking plant
Appropriate hydrocarbon gas reutilization system, including in coking plant fractionating column, fractionator overhead knockout drum, fractionating column head space cooler,
It is fractionated tower top water cooler, contact cooling tower top knockout drum, aerostatic press and absorbing-stabilizing system, wherein fractionator overhead
The tower top oil gas of generation successively passes through fractionating column head space cooler, fractionation tower top water cooler, fractionator overhead gas-liquid point by pipeline
It is sent in absorbing-stabilizing system from tank and aerostatic press, on the pipeline between fractionating column head space cooler and fractionation tower top water cooler
It is connected with mixed pipe line, the other end of the mixed pipe line is connected with a triple valve, other two interface of the triple valve connects respectively
It is connected to hydrocarbon-rich pipeline and ngl pipeline, hydrocarbon-rich pipeline is used in the contact cooling tower top knockout drum in coking plant points
The hydrocarbon-rich gas separated out imports in mixed pipe line, what ngl pipeline was used to generate diesel oil stripper top in diesel hydrotreating unit
Lighter hydrocarbons are imported into mixed pipe line and hydrocarbon-rich gas mixing, and successively through excessive after hydrocarbon-rich gas, lighter hydrocarbons and tower top air-fuel mixture
It evaporates tower top water cooler, fractionator overhead knockout drum and aerostatic press to be sent in absorbing-stabilizing system, and in Vapor recovery unit system
Dry gas product, liquid hydrocarbon product and gasoline products are separated into system.
As a kind of preferred embodiment of the utility model, two are respectively arranged on the hydrocarbon-rich pipeline and ngl pipeline
A control valve prevents component from leaking to realize that bivalve is isolated.
As another preferred embodiment of the utility model, it is connected on the hydrocarbon-rich pipeline and low pressure gas system
The drawing-off gas pipeline of connection, and Remote control valve is provided on the drawing-off gas pipeline.
Upper a kind of preferred embodiment as the utility model advanced optimizes, and the two sides of the Remote control valve are simultaneously
It is associated with active redundancy pipeline, and is provided with hand control valve on active redundancy pipeline.
In the utility model, the absorbing-stabilizing system is that absorption tower, reabsorber, desorber and stabilizer combine to be formed
System, for the Oil-gas Separation of input to be gone out to the product of heterogeneity.
Compared with prior art, the utility model has the following beneficial effects:
1) the tower top oil gas that the utility model generates hydrocarbon-rich gas, lighter hydrocarbons and fractionator overhead carries out mixed processing, most
It is sent in absorbing-stabilizing system eventually, to isolate high added value ingredient therein, ultimately forms dry gas product, liquid hydrocarbon produces
Product and gasoline products are effectively utilized the high added value component in hydrocarbon-rich gas and lighter hydrocarbons, improve economic benefit；
2) the utility model solves lighter hydrocarbons and cannot clearly divide and cannot recycle with the self-produced hydrocarbon-rich gas of coking plant
The problem of, the absorbing-stabilizing system of coking plant is taken full advantage of, the overall process optimization of refinery is realized, the period is lacked in investment for trnasforming urban land
It is short quick, increase production high value added product for enterprise, creates considerable economic benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Appended drawing reference: 1, fractionating column, 2, fractionating column head space cooler, 3, fractionation tower top water cooler, 4, fractionator overhead gas-liquid
Knockout drum, 5, aerostatic press, 6, absorbing-stabilizing system, 7, ngl pipeline, 8, mixed pipe line, 9, hydrocarbon-rich pipeline, 10, active redundancy pipeline,
11, drawing-off gas pipeline, 12, contact cooling tower top knockout drum.
Specific embodiment
The technical solution of the utility model is further elaborated with attached drawing combined with specific embodiments below.
As shown in Figure 1, the hydrocarbon-rich gas reutilization system generated in a kind of coking plant, including the fractionation in coking plant
Tower 1, fractionator overhead knockout drum 4, fractionating column head space cooler 2, fractionation tower top water cooler 3, contact cooling tower top gas liquid
Knockout drum 12, aerostatic press 5 and absorbing-stabilizing system 6, wherein the tower top oil gas that 1 tower top of fractionating column generates successively is passed through by pipeline
It crosses fractionation tower top air cooler 2, fractionation tower top water cooler 3, fractionator overhead knockout drum 4 and aerostatic press 5 and is sent to absorption surely
Determine in system 6, is connected with mixed pipe line 8 on the pipeline between fractionating column head space cooler 2 and fractionation tower top water cooler 3, this is mixed
The other end for closing pipeline 8 is connected with a triple valve, other two interface of the triple valve is connected separately with hydrocarbon-rich pipeline 9 and lighter hydrocarbons
Pipeline 7, hydrocarbon-rich pipeline 9 are used for the hydrocarbon-rich gas that will be isolated in the contact cooling tower top knockout drum 12 in coking plant
It imports in mixed pipe line 8, ngl pipeline 7 is used to for the lighter hydrocarbons that diesel oil stripper top in diesel hydrotreating unit generates importeding into mixed
Close pipeline 8 in hydrocarbon-rich gas mixing, and after hydrocarbon-rich gas, lighter hydrocarbons and tower top air-fuel mixture successively by fractionation tower top water cooler
3, fractionator overhead knockout drum 4 and aerostatic press 5 are sent in absorbing-stabilizing system 6, and are separated in absorbing-stabilizing system 6
For dry gas product, liquid hydrocarbon product and gasoline products.
The above are the basic embodiments of the utility model, can make further optimization, improvement and limit on the basis of above
It is fixed:
As a kind of preferred embodiment of the utility model, it is respectively arranged on the hydrocarbon-rich pipeline 9 and ngl pipeline 7
Two control valves, the two control valves are connected on pipeline, to realize that bivalve is isolated, prevent component from leaking；
As another preferred embodiment of the utility model, it is connected on the hydrocarbon-rich pipeline 9 and low pressure gas system
The drawing-off gas pipeline 11 of system connection, and it is provided with Remote control valve on the drawing-off gas pipeline 11, to realize long-range control
System；
Upper a kind of preferred embodiment as the utility model advanced optimizes, and the two sides of the Remote control valve are simultaneously
It is associated with active redundancy pipeline 10, and is provided with hand control valve on active redundancy pipeline 10, the effect of active redundancy pipeline 10 is, due to remotely controlling
Valve is easy to appear problem, it is often necessary to replace, when replacing Remote control valve, the hand control valve on active redundancy pipeline 10 is opened
?；In practice, the two sides of Remote control valve also respectively connect a hand control valve, in this way when replacing Remote control valve,
The two hand control valves are closed in the leakage of oil gas in order to prevent；
In the utility model, the absorbing-stabilizing system 6 is existing equipment in this field, is by absorption tower, again inhales
It receives tower, desorber and stabilizer and combines the system to be formed, for the Oil-gas Separation of input to be gone out to the product of heterogeneity；
In the utility model, for convenient for monitoring and regulation, the either self-produced hydrocarbon-rich gas of lighter hydrocarbons or coking plant
Temperature, pressure, flow instrumentation are both provided in pipeline, to detect the state of oil gas in pipeline.
Claims (5)
1. the hydrocarbon-rich gas reutilization system generated in a kind of coking plant, it is characterised in that: including the fractionation in coking plant
Tower (1), fractionator overhead knockout drum (4), fractionating column head space cooler (2), fractionation tower top water cooler (3), contact cooling tower
Tower top knockout drum (12), aerostatic press (5) and absorbing-stabilizing system (6), wherein the overhead oil that fractionating column (1) tower top generates
Gas successively passes through fractionating column head space cooler (2), fractionation tower top water cooler (3), fractionator overhead knockout drum (4) by pipeline
It is sent in absorbing-stabilizing system (6) with aerostatic press (5), between fractionating column head space cooler (2) and fractionation tower top water cooler (3)
Pipeline on be connected with mixed pipe line (8), the other end of the mixed pipe line (8) is connected with a triple valve, and the triple valve is in addition
Two interfaces are connected separately with hydrocarbon-rich pipeline (9) and ngl pipeline (7), and hydrocarbon-rich pipeline (9) is used for the contact in coking plant
The hydrocarbon-rich gas isolated in cooling tower top knockout drum (12) imports in mixed pipe line (8), and ngl pipeline (7) is used for will
The lighter hydrocarbons that diesel oil stripper top generates in diesel hydrotreating unit are imported into mixed pipe line (8) and hydrocarbon-rich gas mixing, and rich
Successively by fractionation tower top water cooler (3), fractionator overhead knockout drum (4) after appropriate hydrocarbon gas, lighter hydrocarbons and tower top air-fuel mixture
It is sent in absorbing-stabilizing system (6) with aerostatic press (5), and is separated into dry gas product, liquid hydrocarbon in absorbing-stabilizing system (6)
Product and gasoline products.
2. the hydrocarbon-rich gas reutilization system generated in a kind of coking plant according to claim 1, it is characterised in that: institute
It states and is respectively set on hydrocarbon-rich pipeline (9) and ngl pipeline (7) there are two control valve, to realize that bivalve is isolated, prevent component from leaking.
3. the hydrocarbon-rich gas reutilization system generated in a kind of coking plant according to claim 1, it is characterised in that: institute
The drawing-off gas pipeline (11) being connected on hydrocarbon-rich pipeline (9) with low pressure gas system connectivity is stated, and in the drawing-off gas pipeline
(11) Remote control valve is provided on.
4. the hydrocarbon-rich gas reutilization system generated in a kind of coking plant according to claim 3, it is characterised in that: institute
The two sides for stating Remote control valve are parallel with active redundancy pipeline (10), and are provided with hand control valve on active redundancy pipeline (10).
5. the hydrocarbon-rich gas reutilization system generated in a kind of coking plant according to claim 1, it is characterised in that: institute
Stating absorbing-stabilizing system (6) is that absorption tower, reabsorber, desorber and stabilizer combine the system to be formed, for what will be inputted
Oil-gas Separation goes out the product of heterogeneity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821004723.9U CN208517350U (en) | 2018-06-28 | 2018-06-28 | A kind of hydrocarbon-rich gas reutilization system generated in coking plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821004723.9U CN208517350U (en) | 2018-06-28 | 2018-06-28 | A kind of hydrocarbon-rich gas reutilization system generated in coking plant |
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| Publication Number | Publication Date |
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| CN208517350U true CN208517350U (en) | 2019-02-19 |
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| CN201821004723.9U Expired - Fee Related CN208517350U (en) | 2018-06-28 | 2018-06-28 | A kind of hydrocarbon-rich gas reutilization system generated in coking plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487710A (en) * | 2019-09-12 | 2019-11-22 | 北京赛福贝特能源技术服务有限公司 | A kind of visualization device of crude(oil)unit overhead system fouling corrosion |
-
2018
- 2018-06-28 CN CN201821004723.9U patent/CN208517350U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487710A (en) * | 2019-09-12 | 2019-11-22 | 北京赛福贝特能源技术服务有限公司 | A kind of visualization device of crude(oil)unit overhead system fouling corrosion |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20190628 |