CN107488461B - A kind of S-Zorb system using head tank pressuring method - Google Patents
A kind of S-Zorb system using head tank pressuring method Download PDFInfo
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- CN107488461B CN107488461B CN201710860882.2A CN201710860882A CN107488461B CN 107488461 B CN107488461 B CN 107488461B CN 201710860882 A CN201710860882 A CN 201710860882A CN 107488461 B CN107488461 B CN 107488461B
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- hydrogen
- zorb
- pipeline
- pressuring method
- head tank
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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
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/02—Gasoline
Abstract
The present invention relates to a kind of S-Zorb systems using novel feed tank pressuring method, including sequentially connected feed surge tank, the first absorption feed exchanger, heating furnace, desulfurization reactor, the second absorption feed exchanger, knockout drum and blowback hydrogen compressor；The system also includes gas pressurized pipelines, wherein ventilated body is nitrogen, recycle hydrogen or new hydrogen, stablizes one of overhead gas and fuel gas or a variety of；The outlet of the blowback hydrogen compressor sequentially passes through the desulfurization reactor, the heating furnace returns again to the blowback hydrogen compressor and forms loop；Branch is provided at connecting pipe between the heating furnace and the blowback hydrogen compressor, the branch separates pipeline and is connected with the first absorption feed exchanger；The outlet for blowing hydrogen compressor is also communicated by pressurized with hydrogen pipeline with the air inlet of the feed surge tank, is provided with the second control valve on the pressurized with hydrogen pipeline.The system can be improved the hydrogen purity in recycle hydrogen, reduce the consumption of new hydrogen.
Description
Technical field
The present invention relates to petrochemical industries, in particular to a kind of S- using novel feed tank pressuring method
Zorb system.
Background technique
Currently, the continuous improvement with countries in the world to environmental protection requirement, the index of global content of sulfur in gasoline is just increasingly
Strictly.China carries out III standard of state (sulfur in gasoline mass fraction is less than 150 μ g/g) in the whole nation on January 1st, 2010, and northern
The cities such as capital have been carried out more stringent IV standard of state (sulfur in gasoline mass fraction is less than 50 μ g/g), this just looks forward to oil refining
Industry gasoline is detached from technology, and more stringent requirements are proposed.Catalytic cracking (FCC) gasoline still up to 80% in China's gasoline pool, and FCC
Gasoline is the significant contributor of sulphur in gasoline products, therefore key still solves the problems, such as FCC gasoline desulfurization.Gasoline absorbing desulfurization
Technology comes into full contact with gasoline with the adsorbent with special construction, by the mercaptan in gasoline, curing by the way of absorption
Object, thioether and thiophene-type sulfide are adsorbed on adsorbent, to reduce the sulfur content in gasoline.Since the technology has equipment
Invest that low, desulfurization degree is high, does not consume the advantages that hydrogen and adsorbent price are lower, it has also become each major oil companies research both at home and abroad and open
One of key issues of hair.
S-Zorb technique is a kind of suction mainly for FCC gasoline fraction of Conoco Phillips company, U.S. exploitation
Attached sulfur removal technology, it combines fluidized-bed reactor and cyclic regeneration technology, and is successfully applied to catalytically cracked gasoline and bavin
The desulfurization of oil, is the wider absorption desulfurization technology of current industrial applications.Compared with conventional hydrodesulfurization technology, S-Zorb technology
, anti-knock index small with loss of octane number loses small (≤0.5), hydrogen consumes the low, high (receipts of the above liquid component of light dydrocarbon of liquid yield
Rate>99.2%), the advantages that desulfurization degree is high and product sulfur content low (<10Ug/g), be fully able to meet production Europe IV and with subscript
The needs of quasi- gasoline, in clean gasoline production saliency technical advantage.
S-Zorb device mainly includes that charging and desulphurization reaction, adsorbent reactivation, sorbent circulation and product stablize four
Part, process flow approximately as:
The gasoline that catalytic cracking generates enters absorption charging heat exchange after feed surge tank, feed gasoline are mixed with hydrogen
Device, charging heating furnace enter desulfurization reactor, and fluidised bed adsorption desulphurization reaction occurs；The gaseous mixture of gasoline and hydrogen after desulfurization
Body is adsorbed feed exchanger, hot knockout drum, cold product knockout drum, and the gasoline liquid of weight passes through air-cooled, water
Stabilizer output treated gasoline product is removed after cold, light contains a large amount of hydrogen, a small amount of hydrogen hydrocarbon gas and other on-condensible gases
(N2、CO2, CO etc.) be recycled in a device after circulating hydrogen compressor boosts.
In order to guarantee the system pressure of device, feed surge tank is filled with using high pressure nitrogen.Fresh hydrogen passes through new hydrogen pressure
It is device provisioning hydrogen after the boosting of contracting machine.In order to guarantee that the purity of recycle hydrogen used in reactor reaches minimum requirement, root
Fuel gas net is exhausted directly to according to operating condition part recycle hydrogen, another part gas (including H2、N2、CH4, C2 component, C3 component etc.) from
Stabilizer top row goes out.
There are the following problems for prior art process:
(1) nitrogen for the pressurization of feed surge tank has incorporated in gasoline, recycles into reactor and in circulation hydrogen system
It is detained, nitrogen accounts for 5%~10% in recycle hydrogen in many devices, causes the low of recycle hydrogen hydrogen purity.Recycle hydrogen purity
It is too low to will affect desulphurization reaction, cause product gasoline sulfur content exceeded.
(2) in order to improve hydrogen purity, many devices have to open drain valve, and part recycle hydrogen is discharged into fuel gas net,
Device hydrogen consumption is high.
In view of this, the present invention is specifically proposed.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of S-Zorb system using novel feed tank pressuring method
Problem.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
The present invention relates to a kind of S-Zorb systems using novel feed tank pressuring method, and the system comprises be sequentially connected with
Feed surge tank, first absorption feed exchanger, heating furnace, desulfurization reactor, second absorption feed exchanger, knockout drum with
And blowback hydrogen compressor；
The system also includes gas pressurized pipeline, the gas pressurized pipeline passes through the first control valve and the charging
The air inlet of surge tank communicates；
Ventilated body is nitrogen, hydrogen, stablizes one of overhead gas and fuel gas in the gas pressurized pipeline
Or it is a variety of；
Preferably, the hydrogen is new hydrogen (hydrogen newly injected) or recycle hydrogen.
The outlet of the blowback hydrogen compressor sequentially passes through the desulfurization reactor, the heating furnace returns again to the blowback
Hydrogen compressor forms loop；It is provided with branch at connecting pipe between the heating furnace and the blowback hydrogen compressor, it is described
Branch separates pipeline and is connected with the first absorption feed exchanger；
The outlet of the blowback hydrogen compressor also passes through pressurized with hydrogen pipeline and communicates with the gas pressurized pipeline, the hydrogen
The second control valve is provided on gas pressurized pipeline.
Preferably, as described above use novel feed tank pressuring method S-Zorb system, the feed surge tank with
Reaction feed pump is provided between the first absorption feed exchanger.
Preferably, as described above use novel feed tank pressuring method S-Zorb system, the knockout drum with it is described
First absorption feed exchanger is communicated by pipeline；
Preferably, the S-Zorb system of novel feed tank pressuring method is used as described above, and the knockout drum passes through the
Four valves are communicated with the first absorption feed exchanger by pipeline.
Preferably, the S-Zorb system of novel feed tank pressuring method, the first absorption charging are used as described above
Heat exchanger and the second absorption feed exchanger are the same absorption feed exchanger.
Preferably, the S-Zorb system of novel feed tank pressuring method is used as described above, and the knockout drum includes heat
Product knockout drum and cold product knockout drum.
Preferably, the S-Zorb system of novel feed tank pressuring method is used as described above, and the system also includes to inhale
Attached dose of regenerating unit and sorbent circulation device.
Preferably, the S-Zorb system of novel feed tank pressuring method is used as described above, and the system also includes to produce
Product stabilising arrangement；The product stabilising arrangement includes stabilizer, and the knockout drum is connected with the stabilizer；Preferably, described
It is communicated by the 5th valve with the gas pressurized pipeline at the top of stabilizer.
Preferably, the S-Zorb system of novel feed tank pressuring method, the adsorbent reactivation dress are used as described above
It sets, sorbent circulation device is connected with the desulfurization reactor.
Preferably, the S-Zorb system for using novel feed tank pressuring method as described above, when the system has just started
When operation, opening first control valve injects gas into the feed surge tank and boosts；It is operated normally to system
Afterwards, first control valve is closed, second control valve is opened.
Compared with prior art, the invention has the benefit that
After the pressurized nitrogen of feed surge tank is substituted, nitrogen content in reactor assembly and circulation hydrogen system will be big
It is big to reduce.Hydrogen purity in recycle hydrogen will improve.Under conditions of keeping identical hydrogen purity, it is possible to reduce be discharged into combustion by recycle hydrogen
The gas for expecting gas net, to greatly reduce the consumption of new hydrogen.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the S-Zorb system structure diagram provided by the present invention using novel feed tank pressuring method.
Appended drawing reference:
Feed surge tank 1, first adsorbs feed exchanger 2, heating furnace 3, the absorption charging heat exchange of desulfurization reactor 4, second
Device 5, knockout drum 6, blowback hydrogen compressor 7, reaction feed pump the 8, the 4th valve 9, stabilizer 10, the control of the 5th valve 11, first
Valve A, the second control valve B, third control valve door C.
Specific embodiment
The technical solution of the utility model is clearly and completely retouched below in conjunction with the drawings and specific embodiments
It states, it will be appreciated by those skilled in the art that following, the embodiments are a part of the embodiments of the present invention, without
It is whole embodiments, is merely to illustrate the utility model, and is not construed as limitation the scope of the utility model.It is practical based on this
Embodiment in novel, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, is fallen within the protection scope of the utility model.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer
It is recommended that condition carry out.Reagents or instruments used without specified manufacturer is the routine that can be obtained by commercially available purchase
Product.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The present invention relates to a kind of S-Zorb systems using novel feed tank pressuring method, as shown in Figure 1, the system packet
It includes sequentially connected feed surge tank 1, first and adsorbs feed exchanger 2, heating furnace 3, the absorption charging of desulfurization reactor 4, second
Heat exchanger 5, knockout drum 6 and blowback hydrogen compressor 7；
The system also includes gas pressurized pipeline, the gas pressurized pipeline by the first control valve A and it is described into
The air inlet of material surge tank 1 communicates；
Ventilated body is nitrogen, hydrogen, stablizes one of overhead gas and fuel gas in the gas pressurized pipeline
Or it is a variety of；
Described in the outlet of the blowback hydrogen compressor 7 sequentially passes through the desulfurization reactor 4, the heating furnace 3 returns again to
Blowback hydrogen compressor 7 forms loop；Branch is provided at connecting pipe between the heating furnace 3 and the blowback hydrogen compressor 7
Road, the branch separate pipeline and are connected with the first absorption feed exchanger 2；
The outlet of the blowback hydrogen compressor 7 also passes through pressurized with hydrogen pipeline and communicates with the gas pressurized pipeline, described
The second control valve B is provided on pressurized with hydrogen pipeline.
Preferably, the hydrogen in the gas pressurized pipeline can be new hydrogen (hydrogen newly injected) or recycle hydrogen (by institute
State the injection of pressurized with hydrogen pipeline)
Preferably, the first control valve A and the second control valve B is one-way cock.
Preferably, as shown in Figure 1, the pressurized with hydrogen pipeline and the gas pressurized pipeline can converge the rear and charging
The air inlet of surge tank 1 communicates；Preferably, converge section be additionally provided with lateral to by system gas be discharged, branch
Pipeline is provided with control valve C.
S-Zorb system can be divided into reactor assembly and circulation hydrogen system；
The running track of reactor assembly is feed surge tank 1 --- first absorption feed exchanger 2 --- heating furnace
3 --- --- second absorption feed exchanger 5 --- knockout drum 6 --- stabilising arrangements of desulfurization reactor 4；
The running track for recycling hydrogen system is the --- desulfurization reactor 4 --- heating furnace 3 --- first of blowback hydrogen compressor 7
Adsorb feed exchanger 2 and blowback hydrogen compressor 7；First absorption feed exchanger 2 --- along the running track of reactor assembly
Run to knockout drum 6 --- the first absorption feed exchanger 2 and blowback hydrogen compressor 7.
Preferably, the blowback hydrogen compressor 7 passes through blowback hydrogen/reaction product heat exchanger and purge gas coalescer and institute
Desulfurization reactor 4 is stated to be connected.
The above system main composition desulfuration reaction device part of S-Zorb system.
Preferably, use the S-Zorb system of novel feed tank pressuring method as described above, the feed surge tank 1 with
Reaction feed pump 8 is provided between the first absorption feed exchanger 2.
Preferably, as described above use novel feed tank pressuring method S-Zorb system, the knockout drum 6 with it is described
First absorption feed exchanger 2 is communicated by pipeline.
Preferably, the S-Zorb system of novel feed tank pressuring method is used as described above, and the knockout drum passes through the
Four valves 9 are communicated with the first absorption feed exchanger 2 by pipeline.
Preferably, the S-Zorb system of novel feed tank pressuring method, the first absorption charging are used as described above
Heat exchanger 2 and the second absorption feed exchanger 5 are the same absorption feed exchanger.
Preferably, the S-Zorb system of novel feed tank pressuring method is used as described above, and the knockout drum 6 includes heat
Product knockout drum 6-1 and cold product knockout drum 6-2.
Preferably, the hot knockout drum 6-1 passes through air cooler and cooler and the cold product gas-liquid separation
Tank 6-2 is connected.
Preferably, the S-Zorb system of novel feed tank pressuring method is used as described above, and the system also includes to inhale
Attached dose of regenerating unit and sorbent circulation device.
Preferably, the S-Zorb system of novel feed tank pressuring method is used as described above, and the system also includes to produce
Product stabilising arrangement；The product stabilising arrangement includes stabilizer 10, and the knockout drum 6 is connected with the stabilizer；Preferably, institute
It states and is communicated by the 5th valve 11 with the gas pressurized pipeline at the top of stabilizer 10.
The knockout drum 6 is connected with the product stabilising arrangement.
The setting of stabilising arrangement can be well known in the art, as shown in Figure 1, the knockout drum 6 can stable connection tower, institute
The further purification of gasoline products can be carried out by stating the stabilizer cooperation control devices such as cold, water cooling plant and return tank.
Preferably, the S-Zorb system of novel feed tank pressuring method, the adsorbent reactivation dress are used as described above
It sets, sorbent circulation device is connected with the desulfurization reactor 4.
Adsorbent reactivation device, sorbent circulation device setting can be well known in the art.
Preferably, the S-Zorb system for using novel feed tank pressuring method as described above, when the system has just started
When operation, opening the first control valve A injects gas into the feed surge tank and boosts；It is operated normally to system
Afterwards, the first control valve A is closed, the second control valve B is opened.
Experimental example
Reactor assembly and recycle hydrogen system can be greatly lowered by the improvement to existing S Zorb technique in the present invention
Nitrogen content in system, and then reduce the consumption of new hydrogen.
The dynamic analog calcutation of transformation front and back, calculated result such as the following table 1 have been carried out to the S Zorb device of Mr. Yu's oil plant
It is shown.
Technological parameter comparison (the preceding feelings pressurizeed for nitrogen, pressurizeed after transformation using recycle hydrogen of transformation of the transformation of table 1 front and back
Condition)
Other technological parameters transformation front and back is essentially identical.
From the simulation calculated result of table 1 it is found that
The consumption of new hydrogen reduces 1120Nm after transformation3/h；
Be transformed heel row toward fuel gas net recycle hydrogen flow-reduction 1062Nm3/ h can substantially be closed and be gone to fuel
The valve of gas net.
The present invention is pressurizeed using nitrogen, hydrogen or fuel gas.
Wherein, the pressurization that nitrogen progress feed surge tank is replaced using new hydrogen, can be to avoid due to caused by nitrogen accumulation
Recycle hydrogen is discharged into fuel gas net, but the disadvantage is that increases the consumption of new hydrogen；
It after the pressurization for replacing nitrogen to carry out feed surge tank using fuel gas, calculates and does not have by simulation, supplement new hydrogen and reduce
315Nm3/h；The flow valve position that recycle hydrogen is discharged into fuel gas can be shut, but still need to discharge 712Nm3/h。
Consider from economic benefit, recycle hydrogen pressurization scheme is more preferable than fuel gas pressurization.
The shortcomings that fuel gas pressurization scheme, has:
1) contain a large amount of H in fuel gas2S after being pressed into gasoline, pollutes gasoline again, increases desulfurization difficulty；
2) it also will affect the hydrogen purity of recycle hydrogen also containing light gases such as methane in fuel gas.
The technological parameter comparison (using recycle hydrogen, stablizing overhead gas, fuel gas) of the transformation of table 2 front and back
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, but those skilled in the art should understand that: its
It is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution
The range of art scheme.
Claims (11)
1. a kind of S-Zorb system using head tank pressuring method, the system comprises sequentially connected feed surge tanks,
One absorption feed exchanger, heating furnace, desulfurization reactor, the second absorption feed exchanger, knockout drum and blowback hydrogen compressor；
The system also includes gas pressurized pipeline, the gas pressurized pipeline passes through the first control valve and the feed surge
The air inlet of tank communicates；
Ventilated body is nitrogen, hydrogen, stablizes one of overhead gas and fuel gas or more in the gas pressurized pipeline
Kind；
The outlet of the blowback hydrogen compressor sequentially passes through the desulfurization reactor, the heating furnace returns again to the blowback hydrogen pressure
Contracting machine forms loop；Branch, the branch are provided at connecting pipe between the heating furnace and the blowback hydrogen compressor
Pipeline is separated to be connected with the first absorption feed exchanger；
The outlet of the blowback hydrogen compressor also passes through pressurized with hydrogen pipeline and communicates with the gas pressurized pipeline, and the hydrogen adds
The second control valve is provided on pressure pipeline.
2. the S-Zorb system according to claim 1 using head tank pressuring method, which is characterized in that the charging is slow
It rushes between tank and the first absorption feed exchanger and is provided with reaction feed pump.
3. the S-Zorb system according to claim 1 using head tank pressuring method, which is characterized in that the knockout drum
It is communicated with the first absorption feed exchanger by pipeline.
4. the S-Zorb system according to claim 3 using head tank pressuring method, which is characterized in that the knockout drum
It is communicated with the first absorption feed exchanger by pipeline by the 4th valve.
5. the S-Zorb system according to any one of claims 1 to 4 using head tank pressuring method, which is characterized in that
The first absorption feed exchanger and the second absorption feed exchanger are the same absorption feed exchanger.
6. the S-Zorb system according to claim 1 using head tank pressuring method, which is characterized in that the knockout drum
Including hot knockout drum and cold product knockout drum.
7. the S-Zorb system according to claim 1 using head tank pressuring method, which is characterized in that the system is also
Include adsorbent reactivation device and sorbent circulation device.
8. the S-Zorb system according to claim 7 using head tank pressuring method, which is characterized in that the system is also
Include product stabilising arrangement；The product stabilising arrangement includes stabilizer, and the knockout drum is connected with the stabilizer.
9. the S-Zorb system according to claim 8 using head tank pressuring method, which is characterized in that the stabilizer
Top is communicated by the 5th valve with the gas pressurized pipeline.
10. the S-Zorb system according to claim 7 using head tank pressuring method, which is characterized in that the absorption
Agent regenerating unit, sorbent circulation device are connected with the desulfurization reactor.
11. the S-Zorb system according to claim 1 using head tank pressuring method, which is characterized in that when the system
When system just brings into operation, opening first control valve injects gas into the feed surge tank and boosts；To system
After normal operation, first control valve is closed, opens second control valve.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836699A (en) * | 2012-09-24 | 2012-12-26 | 北京立诚石化技术有限公司 | Regenerating and recycling system and method for S-Zorb waste absorbing agent |
| CN104927904A (en) * | 2014-05-20 | 2015-09-23 | 王荣超 | Hydrotreating sulfur supplementing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8741127B2 (en) * | 2010-12-14 | 2014-06-03 | Saudi Arabian Oil Company | Integrated desulfurization and denitrification process including mild hydrotreating and oxidation of aromatic-rich hydrotreated products |
| KR101955704B1 (en) * | 2011-07-29 | 2019-03-07 | 사우디 아라비안 오일 컴퍼니 | Integrated Isomerization and Hydrotreating Process |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836699A (en) * | 2012-09-24 | 2012-12-26 | 北京立诚石化技术有限公司 | Regenerating and recycling system and method for S-Zorb waste absorbing agent |
| CN104927904A (en) * | 2014-05-20 | 2015-09-23 | 王荣超 | Hydrotreating sulfur supplementing method |
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