CN206014783U - A kind of system of diversification raw material aromatic hydrocarbons - Google Patents
A kind of system of diversification raw material aromatic hydrocarbons Download PDFInfo
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- CN206014783U CN206014783U CN201621057681.6U CN201621057681U CN206014783U CN 206014783 U CN206014783 U CN 206014783U CN 201621057681 U CN201621057681 U CN 201621057681U CN 206014783 U CN206014783 U CN 206014783U
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Abstract
The utility model provides a kind of system of diversification raw material aromatic hydrocarbons, and which includes：H-G hydrocracking device, Aromatic Hydrocarbon United Plant and light-hydrocarbon aromatized device；H-G hydrocracking device is provided with hydrogen inlet, diesel oil entrance, fuel gas outlet, liquefied gas outlet, light naphthar outlet, heavy naphtha outlet；Aromatic Hydrocarbon United Plant includes petroleum naphtha hydrogenation unit, CONTINUOUS REFORMER unit, catalyst regeneration units, Aromatics Extractive Project unit, disproportionation and transalkylation, adsorption separation unit, isomerization unit and xylene fractionation unit；Aromatic Hydrocarbon United Plant includes naphtha entrance, the first BTX aromatics entrance, heavy naphtha entrance, hydrogen-containing gas outlet, fuel gas outlet, liquefied gas outlet, pentane outlet, light naphthar outlet, the outlet of raffinate oil export, heavy aromatics, benzene outlet and paraxylene outlet；Light-hydrocarbon aromatized device is provided with liquefied gas entrance, pentane, raffinates oil and light naphthar entrance, BTX aromatics outlet, hydrogen-containing gas outlet, propane outlets.
Description
Technical field
The utility model is related to a kind of system of diversification raw material aromatic hydrocarbons, belongs to technical field of petrochemical industry.
Background technology
At present, Domestic Oil Products ' Market speedup slows down, and consumption diesel and gasoline ratio is declining year by year, higher than supply diesel and gasoline ratio, diesel oil
It is expected to be 2018 using peak period original, is just come in advance within 2014 in fact, gasoline is former is expected to reach peak value in 2025, and which can
Can to advance to the year two thousand twenty.With the enforcement of VI standard of petrol and diesel oil state in future, the alkene in gasoline and arene content will be further
Reduce, when the time comes by have part more than needed rich in aromatic hydrocarbons oil product.And the country still exists to the supply requirement of benzene and paraxylene in recent years
Increase year by year, and also there is supply breach at present.Under above-mentioned market situation, finished product oil yield is reduced, and by part price phase
To cheap middle product diesel oil, such as：Catalytic diesel oil, straight-run diesel oil or poor ignition quality fuel, obtain Gao Fangqian by being hydrocracked production
Naphtha product, mating part naphtha and/or rich in plurality of raw materials such as aromatic naphtha (such as reformation C7+ oil or reformation C8+ oil),
So as to further produce aromatic hydrocarbons, higher economic benefit can be obtained, the imbalance between supply and demand of product oil can be alleviated again.
Utility model content
The purpose of this utility model is to provide a kind of system of diversification raw material aromatic hydrocarbons.
It is that the utility model provides a kind of system of diversification raw material aromatic hydrocarbons, and which includes up to above-mentioned purpose：
H-G hydrocracking device, Aromatic Hydrocarbon United Plant and light-hydrocarbon aromatized device；
Wherein, the H-G hydrocracking device is provided with hydrogen inlet, diesel oil entrance, fuel gas outlet, liquefied gas goes out
Mouth, light naphthar outlet, heavy naphtha outlet；
Aromatic Hydrocarbon United Plant includes petroleum naphtha hydrogenation unit, CONTINUOUS REFORMER unit, catalyst regeneration units, Aromatics Extractive Project list
Unit, disproportionation and transalkylation, adsorption separation unit, isomerization unit and xylene fractionation unit；
The Aromatic Hydrocarbon United Plant includes naphtha entrance, the first BTX aromatics entrance, heavy naphtha entrance, hydrogen-containing gas
Outlet, fuel gas outlet, liquefied gas outlet, pentane outlet, light naphthar outlet, the outlet of raffinate oil export, heavy aromatics, benzene outlet
Export with paraxylene；
The light-hydrocarbon aromatized device is provided with liquefied gas entrance, pentane, raffinates oil and light naphthar entrance, BTX aromatics
Outlet, hydrogen-containing gas outlet, propane outlets；
The heavy naphtha outlet is connected with the CONTINUOUS REFORMER unit of the Aromatic Hydrocarbon United Plant by pipeline；
The light naphthar outlet of the H-G hydrocracking device, the light naphthar outlet of Aromatic Hydrocarbon United Plant pass through respectively
Pipeline and the pentane, raffinate oil and light naphthar entrance is connected；
The liquefied gas outlet of the H-G hydrocracking device, the liquefied gas outlet of Aromatic Hydrocarbon United Plant pass through pipeline respectively
It is connected with the liquefied gas entrance；
Pentane outlet, raffinate oil export respectively by pipeline and the pentane, raffinate oil and light naphthar entrance phase
Even.
According to system described in the utility model, it is preferable that the system also includes sulfur recovery unit, the sulfur recovery unit leads to
Cross pipeline to be connected with the H-G hydrocracking device.
According to system described in the utility model, it is preferable that the H-G hydrocracking device is additionally provided with heavy aromatics and enters
Mouthful, the heavy aromatics entrance is connected with the heavy aromatics outlet of Aromatic Hydrocarbon United Plant by pipeline.
According to system described in the utility model, it is preferable that the Aromatic Hydrocarbon United Plant is additionally provided with the second BTX aromatics
Entrance, the second BTX aromatics entrance are connected with the BTX aromatics outlet of light-hydrocarbon aromatized device by pipeline.
According to system described in the utility model, it is preferable that the system also includes pressure-swing absorption apparatus, the aromatic hydrocarbons joint
Device hydrogen-containing gas outlet, light-hydrocarbon aromatized device hydrogen-containing gas outlet respectively by pipeline via pressure-swing absorption apparatus with
The hydrogen inlet of the H-G hydrocracking device is connected.
According to system described in the utility model, wherein, the first BTX aromatics entrance of Aromatic Hydrocarbon United Plant, the second mixing
Aromatic hydrocarbons entrance is respectively used to the BTX aromatics for being passed through outsourcing BTX aromatics and being produced by light-hydrocarbon aromatized device.Both mixing virtues
Hydrocarbon is to enter xylene fractionation unit.
According to system described in the utility model, the petroleum naphtha hydrogenation unit included by Aromatic Hydrocarbon United Plant, CONTINUOUS REFORMER
Unit, catalyst regeneration units, Aromatics Extractive Project unit, disproportionation and transalkylation, adsorption separation unit, isomerization unit and
Between xylene fractionation unit, material has circulation, and therefore, the utility model is finally separated from which concrete unit to product
Specific requirement is not made, those skilled in the art can need to carry out reasonable selection adjustment, such as this area skill according to field operation
Art personnel can be according to the technology reasonable selection disclosed in UOP and Axens, as long as ensureing to realize the purpose of this utility model
?.
Device described in the utility model goes for multiple different methods carries out the reaction of diversification raw material aromatic hydrocarbons,
In order to further illustrate to device of the present utility model, the utility model is additionally provided and is entered using device of the present utility model
The method of row diversification raw material aromatic hydrocarbons, the method comprising the steps of：
(1) H-G hydrocracking technique：By diesel oil by be hydrocracked be converted into fuel gas, liquefied gas, light naphthar and
Heavy naphtha；
(2) aromatic hydrocarbons process integration：Scheelite with naphtha, BTX aromatics and step (1) H-G hydrocracking technique productions
Cerebrol is raw material, by petroleum naphtha hydrogenation, CONTINUOUS REFORMER, catalyst regeneration, Aromatics Extractive Project, disproportionation and transalkylation, absorption point
From, isomerization and xylene fractionation technique, obtain hydrogen-containing gas, fuel gas, liquefied gas, light naphthar, pentane, raffinate oil, weight
Aromatic hydrocarbons, benzene and paraxylene；
(3) light-hydrocarbon aromatized technique：In light naphthar that step (1) H-G hydrocracking technique is obtained, liquefied gas
One or two, and/or light naphthar, liquefied gas, pentane and one kind in raffinating oil that step (2) aromatic hydrocarbons process integration is obtained
Or several combinations obtains hydrogen-containing gas, propane and BTX aromatics as raw material by light-hydrocarbon aromatized.
According to method described in the utility model, specifically, the H-G hydrocracking technique described in step (1) is using fixation
Bed hydroprocessing process, the unconverted diesel oil of one way all loop back fixed bed hydrogenation cracking system and are split with proceeding hydrogenation
Change, to maximize the components such as production liquefied gas, light naphthar and heavy naphtha.
According to method described in the utility model, specifically, the method is further comprising the steps of：
Raw material return to step (1) bavin of the heavy aromatics that step (2) aromatic hydrocarbons process integration is obtained as H-G hydrocracking
Oily hydrocracking process, to reduce product category of dispatching from the factory.
According to method described in the utility model, specifically, the method is further comprising the steps of：
Raw material return to step of the BTX aromatics that light-hydrocarbon aromatized for step (3) technique is obtained as aromatic hydrocarbons process integration
(2) aromatic hydrocarbons process integration.
According to method described in the utility model, specifically, the method is further comprising the steps of：
The hydrogen-containing gas of step (2) aromatic hydrocarbons process integration and the light-hydrocarbon aromatized technique gained of step (3) are carried out transformation suction
As H-G hydrocracking hydrogen return to step (1) H-G hydrocracking technique, hydrogen-containing gas pressure-variable adsorption after attached (PSA) purification
After purification, gained tail gas is used as fuel gas.Wherein, the technology of Pressure Swing Adsorption hydrogen is ordinary skill in the art means, its
Concrete operation step is repeated no more in the text.
According to method described in the utility model, " step (1) H-G hydrocracking technique is obtained described in step (3)
Light naphthar, one or two in liquefied gas, and/or step (2) aromatic hydrocarbons process integration obtain light naphthar, liquefaction
Gas, pentane and the combination of one or more in raffinating oil are used as raw material " include following several situations：
1st, any one in the light naphthar that obtains step (1) H-G hydrocracking technique, liquefied gas and step (2) virtue
Light naphthar that hydrocarbon process integration is obtained, liquefied gas, pentane and the combination of one or more in raffinating oil are used as raw material；
2nd, two kinds and step (2) aromatic hydrocarbons in the light naphthar that obtains step (1) H-G hydrocracking technique, liquefied gas
Light naphthar that process integration is obtained, liquefied gas, pentane and the combination of one or more in raffinating oil are used as raw material；
3rd, any one in the light naphthar that obtains step (1) H-G hydrocracking technique, liquefied gas is used as raw material；
4th, two kinds in the light naphthar that obtains step (1) H-G hydrocracking technique, liquefied gas are used as raw material；
5th, the light naphthar that step (2) aromatic hydrocarbons process integration obtained, liquefied gas, pentane and any one work in raffinating oil
For raw material；
6th, the light naphthar that step (2) aromatic hydrocarbons process integration obtained, liquefied gas, pentane and several group in raffinating oil
Cooperate as raw material.
The hydrogen produced according to method described in the utility model, aromatic hydrocarbons process integration and light-hydrocarbon aromatized technique and diesel oil
The required hydrogen of hydrocracking process keeps balance, can so effectively improve the utilization rate of hydrogen product, and this practicality is new
The diversification raw material aromatic hydrocarbons method that type is provided does not need extra organizational system hydrogen production device, further reduces project investment.
According to method described in the utility model, specifically, the method also includes sulfur recovery technology：
After sulphur impurity in raw material is through step (1) H-G hydrocracking technique and step (2) aromatic hydrocarbons process integration, then pass through
Sulfur recovery technology obtains sulphur or sulfuric acid.
According to method described in the utility model, specifically, the method is further comprising the steps of：
By step (1) H-G hydrocracking technique and step (2) aromatic hydrocarbons process integration (petroleum naphtha hydrogenation unit therein)
The hydrogen sulfide (in rich amine solution and acid water) of generation obtains sulphur or sulfuric acid through sulfur recovery technology.Sulphur described in the utility model
Recovery process is ordinary skill in the art means, and the utility model do not make specific requirement, art technology to sulfur recovery technology
Personnel can need to select suitable sulfur recovery technology according to field operation, as long as ensureing to realize the utility model purpose i.e.
Can.In one specific embodiment of the utility model, sulfur recovery technology used is Clause recovery technology of sulfur.
According to method described in the utility model, specifically, the method is further comprising the steps of：
Under non-hydrogen operating condition, light-hydrocarbon aromatized technique, institute are carried out as raw material with outsourcing liquefied gas or light naphthar
Obtain the hydrogen that goes into operation that hydrogen is used separately as H-G hydrocracking technique and aromatic hydrocarbons process integration.I.e.：Lighter hydrocarbons are adopted during project kickoff
Aromatisation takes the lead in going into operation, and this device is operated under conditions of non-hydrogen, and H-G hydrocracking device and aromatic hydrocarbons joint dress
Need to operate in the case where hydrogen state is faced when putting driving, so light-hydrocarbon aromatized device can be with outsourcing liquefied gas or light naphthar as original
Material is preferential to drive, and production hydrogen supply hydrocracking unit and Aromatic Hydrocarbon United Plant drive to use, and drive without the need for outsourcing hydrogen.
According to method described in the utility model, the diesel oil used by step (1) H-G hydrocracking technique includes being catalyzed bavin
Oil, pyrolysis gas oil, straight-run diesel oil.
According to method described in the utility model, the outsourcing feed naphtha used by step (2) aromatic hydrocarbons process integration includes
Straight-run naphtha, hydrocracked naphtha.
According to method described in the utility model, the outsourcing BTX aromatics used by step (2) aromatic hydrocarbons process integration include weight
Whole C7+ oil or reformation C8+ oil.
According to method described in the utility model, the method specifically includes following steps：
H-G hydrocracking technique：Its raw materials used heavy aromatics produced by diesel oil and aromatic hydrocarbons process integration.Wherein, diesel oil
The diesel oil of the relative low price such as catalytic diesel oil, pyrolysis gas oil, straight-run diesel oil can be adopted, hydrogen is by aromatic hydrocarbons process integration and lighter hydrocarbons aromatization
Change process by-product hydrogen-containing gas to provide after Pressure Swing Adsorption.Through fixed bed hydrogenation cracking reaction after raw material and hydrogen mixing
Afterwards, isolated fuel gas, liquefied gas, light naphthar, heavy naphtha and unconverted diesel oil, unconverted diesel cycle return fixed bed
Hydrocracking reaction system further participates in cracking reaction.Light naphthar and liquefied gas deliver to light-hydrocarbon aromatized technique, scheelite brain
Aromatic hydrocarbons process integration delivered to by oil；
Aromatic hydrocarbons process integration：Its raw material has naphtha (outsourcing), BTX aromatics (outsourcing), H-G hydrocracking heavy naphtha
The BTX aromatics produced with light-hydrocarbon aromatized device.Outsourcing feed naphtha can adopt straight-run naphtha, hydrocracked naphtha etc.,
The BTX aromatics raw material of outsourcing can be reformation C7+ oil or reformation C8+ oil etc..Aromatic hydrocarbons process integration includes petroleum naphtha hydrogenation, connects
The technique such as continuous reformation, catalyst regeneration, Aromatics Extractive Project, disproportionation and transalkylation, isomerization, adsorbing separation, dimethylbenzene separation, respectively
Process stream is interrelated, is conventional machining flow process, is not described further in detail herein.Different raw materials enters the difference of Aromatic Hydrocarbon United Plant
Unit, in the utility model specific embodiment, if the impurity content such as sulphur meets reformation in the hydrotreated naphtha of outsourcing
If the feed needs of technique, then, after can carrying out simple dehydration, removing light naphthar to outsourcing naphtha, directly it is sent to
Reformer, otherwise needs to be introduced into Naphtha hydrofining unit；
In this method H-G hydrocracking heavy naphtha produced by H-G hydrocracking technique can directly enter reformer；But
Straight-run naphtha enters reformer after need to first passing through petroleum naphtha hydrogenation；And reformation C7+ oil or C8+ oil need not move through naphtha
Hydrogenation and reformation, can be fed directly to dimethylbenzene separative element.Above-mentioned raw materials obtain hydrogen-containing gas, fuel after Aromatic Hydrocarbon United Plant
Air-liquid gas, light naphthar, pentane, raffinate oil, benzene and para-xylene product；Light naphthar, liquefied gas, pentane, raffinate oil
Light-hydrocarbon aromatized device is delivered to, benzene and paraxylene dispatch from the factory and sell outward；
The hydrogen sulfide (in rich amine solution and acid water) that hydrocracking process and aromatic hydrocarbons process integration are produced is sent to sulphur to return
Receiving apparatus.Sulfur recovery unit combines market situation, different process routes may be selected the sulphur brought in charging is converted into sulphur
Or sulfuric acid, meet environmental requirement.
Light-hydrocarbon aromatized technique：Its raw material has light naphthar, liquefied gas, pentane and raffinates oil, and is all from diesel oil hydrogenation and splits
Chemical industry skill and aromatic hydrocarbons process integration.Product is hydrogen-containing gas, propane and BTX aromatics, and hydrogen-containing gas are produced with aromatic hydrocarbons process integration
Hydrogen-containing gas are delivered to pressure-variable adsorption in the lump and extract high-purity hydrogen, and BTX aromatics are used as the raw material of Aromatic Hydrocarbon United Plant, and propane goes out
Sell outside factory.
According to method described in the utility model, in light naphthar that H-G hydrocracking technique is obtained, liquefied gas one
Kind or two kinds, and aromatic hydrocarbons process integration obtain light naphthar, liquefied gas, pentane and in raffinating oil whole, one or more
Also can be used as product export.
According to method described in the utility model, in aromatic hydrocarbons process integration, the CONTINUOUS REFORMER, catalyst regeneration, discrimination
Change and transalkylation, adsorbing separation, isomerization can adopt UOP (UOP) patented technology, the patent skill
Art may be referred at least following 5 patents：
1st, catalytic reforming technology may be referred to the special of entitled " method of the catalytic reforming with naphtha as raw material "
Profit application, its Publication No. CN1044488A；
2nd, catalyst regeneration techniques may be referred to entitled " method and apparatus for making regenerated catalyst particles "
Patent application, its Publication No. CN103517761A；
3rd, disproportionation and transalkylation technology may be referred to entitled " the aromatic compounds choosing with the conversion ratio for improving
The patent application of selecting property disproportionation process ", its Publication No. CN101668723A；
4th, adsorption separation technology may be referred to the entitled " method and dress using adsorbing separation and fractionation recovery product
Put " patent application, its Publication No. CN104159647A；
5th, isomerization technique may be referred to the patent Shen of entitled " selective dimethyl isomerization and ethylbenzene conversion "
Please, its Publication No. CN1342631A；
The CONTINUOUS REFORMER, catalyst regeneration, disproportionation and transalkylation, adsorbing separation, isomerization can also adopt France
The patented technology of Axens, the patented technology may be referred at least following 5 patents：
1st, catalytic reforming technology may be referred to entitled " in several areas of the moving bed reaction side by side side of catalytic reforming
The patent application of method ", its Publication No. CN1042559A；
2nd, catalyst regeneration techniques may be referred to entitled " renovation process of aromatic hydrocarbon preparation or reforming catalyst "
Patent application, its Publication No. CN1045411A；
3rd, disproportionation and transalkylation technology may be referred to entitled " in the presence of two kinds of zeolite catalysts alkylaromatic hydrocarbon
The patent application of disproportionation and the method for transalkylation ", its Publication No. CN1164524A；
4th, adsorption separation technology may be referred to the special of entitled " improved simulated mobile bed separation process and equipment "
Profit application, its Publication No. CN1714915A；
5th, isomerization technique may be referred to entitled " the double zeolite catalysises comprising group VIII metal and Group IIIA metal
The patent application of agent and its application in the isomerization of aromatic C 8 compounds ", its Publication No. CN101340976A.
According to method described in the utility model, in aromatic hydrocarbons process integration, the Aromatics Extractive Project can adopt Shi Keyuan
Extractive distillation technology, the technology may be referred to entitled " a kind of method of extractive distillation aromatics separation and answering of using
The patent application of bonding solvent ", its Publication No. CN1393507A.These above-mentioned technologies are respectively provided with abundant achievement, skill
Art mature and reliable.
According to method described in the utility model, the light-hydrocarbon aromatized technique can adopt the lighter hydrocarbons of Dalian University of Technology
Aromatization technology, the technology may be referred to the patent Shen of entitled " a kind of process of lower carbon number hydrocarbons hydroaromatization "
Please, its Publication No. CN103834437A.Can process H-G hydrocracking using the technique and Aromatic Hydrocarbon United Plant is obtained
The more light hydrocarbon product of kind, such as：Light naphthar, liquefied gas, pentane and raffinate oil, obtain hydrogen-containing gas, BTX aromatics and third
Alkane product.
According to method described in the utility model, in aromatic hydrocarbons process integration, the petroleum naphtha hydrogenation technique and dimethylbenzene
Fractionation process is also this area common process.
According to method described in the utility model, light-hydrocarbon aromatized technique is with H-G hydrocracking technique and aromatic hydrocarbons joint work
Skill products obtained therefrom is raw material, processes BTX aromatics product, and the light-hydrocarbon aromatized technique not only can improve aromatics yield, also
Product category is reduced, optimized, reduced storage and handling facility, floor space and cost of investment.
In the method for the diversification raw material aromatic hydrocarbons that the utility model is provided, the ratio of various external sources is limited by hydrogen
Gas is balanced, and should determine the raw material proportioning for comparing optimization according to hydrogen output in factory and raw material hydrogen-consuming volume, it is to avoid build device for producing hydrogen
Increase investment, while also avoiding rich a large amount of hydrogen from utilizing, and can only burn as fuel.I.e.：The utility model is various
Raw material proportioning is affected by raw material type and property, and the utility model does not make specific requirement, art technology to various raw material proportionings
Personnel can need reasonable selection adjustment raw material proportioning according to field operation, as long as ensureing to realize the utility model purpose i.e.
Can.
In the method that the utility model is provided, processing route includes H-G hydrocracking, petroleum naphtha hydrogenation, continuous weight
The technique such as the regeneration of whole, catalyst, Aromatics Extractive Project, disproportionation and transalkylation, isomerization, adsorbing separation and xylene fractionation technique,
Major product includes benzene, paraxylene and propane.First, in the work flow, between each technique, raw material and product are mutually supplied, are reduced
Low-value product species, optimizes storage and handling facility, reduces accumulating investment；Secondly, product category is concentrated, and added value is high.Additionally, should
Manufacturing process flexibly, can flexibly be allocated according to market demand by the distribution of each product：Light naphthar, liquefied gas, pentane, take out
One or more in the intermediate products such as excess oil can also be used as product export, and the storage and handling facility under this operating mode is just relied on as far as possible
Often operating mode, should not additionally increase too many investment because considering various working.
In sum, the method and system of diversification raw material aromatic hydrocarbons provided by the utility model can produce benzene, right
The high value added products such as dimethylbenzene, and raw material proportioning and product structure can neatly be adjusted according to market situation, overcome list
The problems such as pure high cost for adopting naphtha to exist for raw material aromatic hydrocarbons, benefit are low, hydrogen is more than needed, and adopt processing of heavy oil institute
The investment of presence is big, and the problems such as difficulty of processing is big, method provided by the utility model is a kind of new aromatics production processing
Route.
Description of the drawings
The flow process of the method and system of the diversification raw material aromatic hydrocarbons that Fig. 1 is provided for the utility model embodiment is shown with structure
It is intended to.
Specific embodiment
Implementation process of the present utility model is described in detail with having for producing below by way of specific embodiment and Figure of description
Beneficial effect, it is intended to help reader to more fully understand essence of the present utility model and feature, not as can practical range to this case
Restriction.
Embodiment 1
A kind of system of diversification raw material aromatic hydrocarbons is present embodiments provided, its structural representation is as shown in figure 1, from Fig. 1
In as can be seen that the system include：
H-G hydrocracking device, Aromatic Hydrocarbon United Plant and light-hydrocarbon aromatized device；
Wherein, the H-G hydrocracking device is provided with hydrogen inlet, diesel oil entrance, fuel gas outlet, liquefied gas goes out
Mouth, light naphthar outlet, heavy naphtha outlet；
Aromatic Hydrocarbon United Plant includes petroleum naphtha hydrogenation unit, CONTINUOUS REFORMER unit, catalyst regeneration units, Aromatics Extractive Project list
Unit, disproportionation and transalkylation, adsorption separation unit, isomerization unit and xylene fractionation unit；
The Aromatic Hydrocarbon United Plant includes naphtha entrance, the first BTX aromatics entrance, heavy naphtha entrance, hydrogen-containing gas
Outlet, fuel gas outlet, liquefied gas outlet, pentane outlet, light naphthar outlet, the outlet of raffinate oil export, heavy aromatics, benzene outlet
Export with paraxylene；
The light-hydrocarbon aromatized device is provided with liquefied gas entrance, pentane, raffinates oil and light naphthar entrance, BTX aromatics
Outlet, hydrogen-containing gas outlet, propane outlets；
The heavy naphtha outlet is connected with the CONTINUOUS REFORMER unit of the Aromatic Hydrocarbon United Plant by pipeline；
The light naphthar outlet of the H-G hydrocracking device, the light naphthar outlet of Aromatic Hydrocarbon United Plant pass through respectively
Pipeline and the pentane, raffinate oil and light naphthar entrance is connected；
The liquefied gas outlet of the H-G hydrocracking device, the liquefied gas outlet of Aromatic Hydrocarbon United Plant pass through pipeline respectively
It is connected with the liquefied gas entrance；
Pentane outlet, raffinate oil export respectively by pipeline and the pentane, raffinate oil and light naphthar entrance phase
Even.
The system also includes sulfur recovery unit, and the sulfur recovery unit is by pipeline and the H-G hydrocracking device phase
Even.
The H-G hydrocracking device is additionally provided with heavy aromatics entrance, and the heavy aromatics entrance is combined with aromatic hydrocarbons by pipeline
The heavy aromatics outlet of device is connected.
The Aromatic Hydrocarbon United Plant is additionally provided with the second BTX aromatics entrance, the second BTX aromatics entrance by pipeline with
The BTX aromatics outlet of light-hydrocarbon aromatized device is connected.
The system also includes pressure-swing absorption apparatus, the hydrogen-containing gas outlet of the Aromatic Hydrocarbon United Plant, light-hydrocarbon aromatized dress
The hydrogen-containing gas outlet that puts respectively by pipeline via pressure-swing absorption apparatus and the H-G hydrocracking device hydrogen inlet
It is connected.
Embodiment 2
A kind of method of diversification raw material aromatic hydrocarbons is present embodiments provided, the method is provided using embodiment 1
System realizes which includes step in detail below：
(1) H-G hydrocracking technique：By diesel oil by be hydrocracked be converted into fuel gas, liquefied gas, light naphthar and
Heavy naphtha；
(2) aromatic hydrocarbons process integration：Scheelite with naphtha, BTX aromatics and step (1) H-G hydrocracking technique productions
Cerebrol is raw material, by petroleum naphtha hydrogenation, CONTINUOUS REFORMER, catalyst regeneration, Aromatics Extractive Project, disproportionation and transalkylation, isomerization,
Adsorbing separation and xylene fractionation technique, obtain hydrogen-containing gas, fuel gas, liquefied gas, pentane, raffinate oil, heavy aromatics, benzene and right
Dimethylbenzene；
(3) light-hydrocarbon aromatized technique：In light naphthar that step (1) H-G hydrocracking technique is obtained, liquefied gas
One or two, and/or light naphthar, liquefied gas, pentane and one kind in raffinating oil that step (2) aromatic hydrocarbons process integration is obtained
Or several combinations obtains hydrogen-containing gas, propane and BTX aromatics as raw material by light-hydrocarbon aromatized.
Specifically, H-G hydrocracking technique is that aromatic hydrocarbons process integration is using fixed bed hydrogenation process technology
Using the complete set technology of Axens companies, wherein at least includes above-mentioned five patented technology, and light-hydrocarbon aromatized technique is using big
Connect the light-hydrocarbon aromatized technology of Polytechnics, sulfur recovery adopts Clause sulphur recoveries+tail gas treatment process.
This example is hydrocracked stone brain with 900,000 tons/year of catalytic diesel oils of outsourcing, 200,000 tons/year of DCC light oil, 110,000 tons/year
Oil, 250,000 tons/year of reformation C7+ oil are raw material, obtain benzene, paraxylene, propane, sulfur product.
Using catalytic diesel oil and DCC light oil as the raw material of H-G hydrocracking technique, H-G hydrocracking device main
Product has fuel gas, liquefied gas, light naphthar and heavy naphtha.Wherein, raw material of the heavy naphtha as Aromatic Hydrocarbon United Plant, liquid
Change gas and light naphthar as the raw material of light-hydrocarbon aromatized device.
This example outsourcing hydrocracked naphtha quality is higher, and the impurity content such as sulphur meets reformer charging, through simple
After dehydration, removing light naphthar component, the CONTINUOUS REFORMER of Aromatic Hydrocarbon United Plant is mixed into H-G hydrocracking heavy naphtha
Device carries out catalytic reforming reaction, and major product is reformed oil (C6+).Major product from light-hydrocarbon aromatized device is mixed
Close aromatic hydrocarbons and Aromatic Hydrocarbon United Plant is entered as raw material, converge with reformed oil (C6+), outsourcing reformation C7+ oil, join through aromatic hydrocarbons
Attach together other devices that puts, i.e. aromatic extraction unit, disproportionation and transalkylation unit, adsorption separation device, isomerization unit and
Xylene fractionation device is processed.The product of Aromatic Hydrocarbon United Plant includes：Hydrogen-containing gas, fuel gas, liquefied gas, light naphthar, penta
Alkane, raffinate oil, benzene, paraxylene and heavy aromatics product.Wherein, heavy aromatics product delivers to H-G hydrocracking device freshening；Liquid
Change gas, light naphthar, pentane and raffinate oil product light-hydrocarbon aromatized device is supplied to as raw material.Benzene and para-xylene product go out
Factory sells.
The product of light-hydrocarbon aromatized device has hydrogen-containing gas, propane and BTX aromatics, BTX aromatics to combine as aromatic hydrocarbons again
The raw material of device.The bromopropane product of light-hydrocarbon aromatized device dispatches from the factory sale.The hydrogen-containing gas of Aromatic Hydrocarbon United Plant and lighter hydrocarbons aromatization
After Pressure Swing Adsorption, supply H-G hydrocracking device is used the hydrogen-containing gas that makeup is put together.
In this example, the hydrogen that Aromatic Hydrocarbon United Plant and light-hydrocarbon aromatized device are produced can meet H-G hydrocracking device
Use, substantially without hydrogen more than needed, without the need for additionally building device for producing hydrogen.
In this example, if when light-hydrocarbon aromatized device is stopped work or when other device product prices are advantageous, diesel oil hydrogenation
Light naphthar that cracking unit and Aromatic Hydrocarbon United Plant are produced, liquefied gas, pentane and in raffinating oil whole, one or more
Can be used as product export.
The final products of whole processing route are benzene, paraxylene and bromopropane product.If most to produce paraxylene
For principle, 700,000 tons/year of paraxylene, 310,000 tons/year of benzene, 150,000 tons/year of propane can be at most produced.
Benzaldehyde product property：
Product meets the technical requirements of petrobenzene GB/T3405-2011, and its quality index is see the table below shown in 1.
Table 1 petrobenzene (GB/T3405-2011) quality index
Para-xylene product property：
Which meets the index with regard to high-class product in People's Republic of China's petroleum chemical industry standard SH1486.1-2008
Require.
Oil paraxylene (SH1486.1-2008) choicest quality figureofmerit is as shown in table 2 below.
2 oil paraxylene (SH1486.1-2008) choicest quality figureofmerit of table
Bromopropane product property is as shown in table 3 below：
3 bromopropane product quality index of table
In sum, the processing method that the utility model is provided can produce the high added values such as benzene, paraxylene with system
Product, and the problems such as simple high cost for adopting naphtha existing for raw material, benefit are low, hydrogen is more than needed is which overcomed, with
And big using the investment existing for processing of heavy oil, the problems such as difficulty of processing is big, method provided by the utility model is a kind of new
The aromatics production processing route of type.
Claims (5)
1. a kind of system of diversification raw material aromatic hydrocarbons, which includes：H-G hydrocracking device, Aromatic Hydrocarbon United Plant and lighter hydrocarbons virtue
Structure makeup is put；
Wherein, the H-G hydrocracking device is provided with hydrogen inlet, diesel oil entrance, fuel gas outlet, liquefied gas outlet, light
Naphtha outlet, heavy naphtha outlet；
Aromatic Hydrocarbon United Plant include petroleum naphtha hydrogenation unit, CONTINUOUS REFORMER unit, catalyst regeneration units, Aromatics Extractive Project unit,
Disproportionation and transalkylation, adsorption separation unit, isomerization unit and xylene fractionation unit；
The Aromatic Hydrocarbon United Plant includes that naphtha entrance, the first BTX aromatics entrance, heavy naphtha entrance, hydrogen-containing gas go out
Mouth, fuel gas outlet, liquefied gas outlet, pentane outlet, light naphthar outlet, raffinate oil export, heavy aromatics outlet, benzene outlet and
Paraxylene is exported；
The light-hydrocarbon aromatized device is provided with liquefied gas entrance, pentane, raffinates oil and light naphthar entrance, BTX aromatics go out
Mouth, hydrogen-containing gas outlet, propane outlets；
The heavy naphtha outlet is connected with the CONTINUOUS REFORMER unit of the Aromatic Hydrocarbon United Plant by pipeline；
The light naphthar outlet of the H-G hydrocracking device, the light naphthar outlet of Aromatic Hydrocarbon United Plant pass through pipeline respectively
With the pentane, raffinate oil and light naphthar entrance is connected；
The liquefied gas outlet of the H-G hydrocracking device, the liquefied gas outlet of Aromatic Hydrocarbon United Plant are respectively by pipeline and institute
State liquefied gas entrance to be connected；
Pentane outlet, raffinate oil export respectively by pipeline and the pentane, raffinate oil and light naphthar entrance is connected.
2. system according to claim 1, it is characterised in that the H-G hydrocracking device is additionally provided with heavy aromatics and enters
Mouthful, the heavy aromatics entrance is connected with the heavy aromatics outlet of Aromatic Hydrocarbon United Plant by pipeline.
3. system according to claim 1, it is characterised in that the Aromatic Hydrocarbon United Plant is additionally provided with the second BTX aromatics
Entrance, the second BTX aromatics entrance are connected with the BTX aromatics outlet of light-hydrocarbon aromatized device by pipeline.
4. system according to claim 1, it is characterised in that the system also includes sulfur recovery unit, the sulfur recovery unit
It is connected with the H-G hydrocracking device by pipeline.
5. system according to claim 1, it is characterised in that the system also includes pressure-swing absorption apparatus, the aromatic hydrocarbons connection
Attach together put hydrogen-containing gas outlet, light-hydrocarbon aromatized device hydrogen-containing gas outlet respectively by pipeline via pressure-swing absorption apparatus
It is connected with the hydrogen inlet of the H-G hydrocracking device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190289A (en) * | 2016-09-14 | 2016-12-07 | 北京石油化工工程有限公司 | A kind of method and system of diversification raw material aromatic hydrocarbons |
| US11040926B2 (en) | 2019-07-22 | 2021-06-22 | Uop Llc | Integrated process for maximizing recovery of aromatics |
-
2016
- 2016-09-14 CN CN201621057681.6U patent/CN206014783U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190289A (en) * | 2016-09-14 | 2016-12-07 | 北京石油化工工程有限公司 | A kind of method and system of diversification raw material aromatic hydrocarbons |
| CN106190289B (en) * | 2016-09-14 | 2018-09-28 | 北京石油化工工程有限公司 | A kind of method and system of diversification raw material aromatic hydrocarbons |
| US11040926B2 (en) | 2019-07-22 | 2021-06-22 | Uop Llc | Integrated process for maximizing recovery of aromatics |
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