CN108795477A - A kind of removal of mercaptans method and device of light-end products - Google Patents
A kind of removal of mercaptans method and device of light-end products Download PDFInfo
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- CN108795477A CN108795477A CN201810742373.4A CN201810742373A CN108795477A CN 108795477 A CN108795477 A CN 108795477A CN 201810742373 A CN201810742373 A CN 201810742373A CN 108795477 A CN108795477 A CN 108795477A
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- Prior art keywords
- light
- end products
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- tower
- still
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Classifications
-
- 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
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
-
- 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
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
-
- 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
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of removal of mercaptans methods of light-end products, include the following steps：（1）Light-end products enter by the oil product entrance of main reaction top of tower in tower, enter bottom of tower by the buffer in tower；（2）Start to spray coagent in the middle part of main reaction tower and in stand-by still；（3）Light-end products under the action of agitating device after being contacted with the adsorbent of main reaction tower bottom, into stand-by still；（4）Light-end products continue to mix with coagent in stand-by still adsorbed using adsorbent after from recovery pipe be discharged；（5）The gas generated in above process is discharged after adsorbent from the exhaust outlet at stand-by still both ends；Compared with prior art, the method for the present invention can make the light-end products of participation sweetening reaction evenly distribute and flow in reactor, and with adsorbent close contact, keep sweetening reaction stable and be effectively performed.
Description
Technical field
The present invention relates to a kind of purified treatment field of light oil, the removal of mercaptans method of specifically a kind of light-end products and
Device.
Background technology
As problem of environmental pollution is gradually by the common concern of the whole society, the prevention problem of atmosphere pollution, mist especially
The improvement in haze day becomes a main aspect；" flicker of blue sky and white cloud an array of stars " also becomes the intuitive index of control atmosphere pollution.Its
In, the degree of purification of the oil gas as one of several key industry energy fuels becomes a urgent problem to be solved.
Light oil, also known as naphtha, white spirit.It is a kind of product of oil after Petroleum refining, directly burning is without net
If changing desulfurization process, it can cause environmental pollution, influence human health；Sulphur content in light-end products is inorganic sulfur and organic
Sulphur；Inorganic sulfur, that is, hydrogen sulfide；Organic sulfur is mainly methyl mercaptan, ethyl mercaptan, also a small amount of dimethyl disulfide, two sulphur of diethyl,
Two sulphur of Methylethyl, propanethiol, methyl sulfide, carbonyl sulfur etc..Inorganic sulfur is washed by amine to be easy to remove, and the mercaptan in organic sulfur
Then generally removed by sodium hydroxide alkali elution.Disulphide, methyl sulfide, carbonyl sulfur are washed whether through amine or alkali cleaning is all difficult
Removing.
Removal of mercaptans is exactly the technology for removing the mercaptan in light oil, this is that the difficult point of desulfurization is also emphasis.Therefore, deep
Sulfide especially mercaptan in degree removing light oil, has important economical and environmentally friendly meaning.
Invention content
In order to solve the above technical problems, the present invention provides a kind of removal of mercaptans method and device of light-end products.
The technical solution adopted in the present invention is：A kind of removal of mercaptans method of light-end products, includes the following steps：
（1）Light-end products enter by the oil product entrance of main reaction top of tower in tower, enter bottom of tower by the buffer in tower；
（2）Start to spray coagent in the middle part of main reaction tower and in stand-by still；
（3）Light-end products under the action of agitating device after being contacted with the adsorbent of main reaction tower bottom, into stand-by still
It is interior；
（4）Light-end products continue to mix with coagent in stand-by still adsorbed using adsorbent after from recovery pipe be discharged；
（5）The gas generated in above process is discharged after adsorbent from the exhaust outlet at stand-by still both ends；
Compared with prior art, the method for the present invention can be such that the light-end products of participation sweetening reaction are evenly distributed in reactor
With flowing, and with adsorbent close contact, keep sweetening reaction stable and be effectively performed, the method for the present invention passes through spray equipment
The service efficiency of coagent can also greatly be improved, reduce discharge and processing, it is both cost-effective, also it is conducive to environmental protection.
Apparatus of the present invention can make sweetening reaction stable and be effectively performed, and realize industrial continuous production, improve adsorbent
Service efficiency can correspondingly reduce the injection rate of coagent, and coagent can recycle, to effectively reduce
Processing cost reduces discharge and processing.
Description of the drawings
The technical solution further illustrated the present invention with reference to the accompanying drawings and detailed description.
It is schematic structural view of the invention as shown in Figure 1
In attached drawing：1, main reaction tower, 2, stand-by still, 3, oil product entrance, 4, spray equipment, 5, buffer, 6, adsorption layer, 7, stirring
Device, 8, recovery pipe, 9, exhaust outlet.
Specific implementation mode
As shown, a kind of removal of mercaptans method of light-end products, includes the following steps：
（1）Light-end products enter by the oil product entrance 3 at 1 top of main reaction tower in tower, enter tower by the buffer 5 in tower
Bottom；
（2）Start to spray coagent in 1 middle part of main reaction tower and stand-by still 2；
（3）Light-end products under the action of agitating device 7 after being contacted with the adsorbent of 1 bottom of main reaction tower, into auxiliary
In tower 2；
（4）Light-end products continue in the stand-by still 2 to mix with coagent adsorbed using adsorbent after from 8 row of recovery pipe
Go out；
（5）The gas generated in above process is discharged after adsorbent from the exhaust outlet 9 at stand-by still both ends；
The buffer is set to main reaction tower top, and light-end products come into full contact with by buffer with air, provide removal of mercaptans
React required oxygen；
The coagent can improve sweetening reaction efficiency, preferably quaternary ammonium compounds；Usual coagent is dissolved in
Reaction is participated in solvent as a solution, the solvent is one or more in water, alcohol, liquid hydrocarbon；
The alcohol includes monohydric alcohol, polyalcohol, and the liquid hydrocarbon includes one or more in alkane, aromatic hydrocarbons and cycloalkane.
Inorganic base, metal phthalocyanine compound can also be incorporated in the coagent.
The adsorbent is by 10-60 parts of molecular sieve, 10-40 parts of coagent, iron hydroxide and hydroxide iron mixture
6-50 parts of compositions.
The ratio of the iron hydroxide and sodium hydroxide ferrous iron is 180：1.
The reaction temperature of the mercapfining light oil reaction is usually 10 DEG C~80 DEG C, and reaction pressure is usually 0.1
~1MPa.
Inventive desulfurization alcohol device includes main reaction tower 1 and stand-by still 2, and oil product entrance is arranged in 1 top of the main reaction tower
3, stand-by still 2 is arranged in main reaction tower both sides, and spray equipment 4, the master are both provided in the main reaction tower and stand-by still
It reacts tower bottom and agitating device 7 is set, two groups of adsorption layers 6 are respectively set in the stand-by still, absorption is filled in the adsorption layer 6
Agent, 1 lower part of the stand-by still also set up recovery pipe 8, both ends setting exhaust outlet 9；
Buffer 5 is also set up in the middle part of the main reaction tower.
For those of ordinary skills, it is possible to understand that without departing from the principles and spirit of the present invention
A variety of change, modification, replacement and modification can be carried out to above-described embodiment, the scope of the present invention is by appended claims and its waits
Jljl limits.
Claims (10)
1. a kind of removal of mercaptans method of light-end products, which is characterized in that include the following steps：
(1) light-end products enter by the oil product entrance of main reaction top of tower in tower, enter bottom of tower by the buffer in tower；
(2) start to spray coagent in the middle part of main reaction tower and in stand-by still；
(3) light-end products under the action of agitating device after being contacted with the adsorbent of main reaction tower bottom, into stand-by still
It is interior；
(4) light-end products continue to mix with coagent in stand-by still adsorbed using adsorbent after from recovery pipe be discharged；
(5) gas generated in above process is discharged after adsorbent from the exhaust outlet at stand-by still both ends.
2. the removal of mercaptans method of light-end products as described in claim 1, which is characterized in that the buffer is set to main reaction
Tower top, light-end products come into full contact with by buffer with air, provide sweetening reaction required oxygen.
3. the removal of mercaptans method of light-end products as described in claim 1, which is characterized in that the coagent can improve de-
Thiol reaction efficiency, preferably quaternary ammonium compounds；Usual coagent dissolving participates in reaction as a solution in a solvent,
The solvent is one or more in water, alcohol, liquid hydrocarbon.
4. the removal of mercaptans method of light-end products as claimed in claim 3, which is characterized in that the alcohol includes monohydric alcohol, polynary
Alcohol, the liquid hydrocarbon include one or more in alkane, aromatic hydrocarbons and cycloalkane.
5. the removal of mercaptans method of light-end products as claimed in claim 3, which is characterized in that can also match in the coagent
Enter inorganic base, metal phthalocyanine compound.
6. the removal of mercaptans method of light-end products as described in claim 1, which is characterized in that the adsorbent is by molecular sieve 10-
60 parts, 10-40 parts of coagent, 6-50 parts of compositions of iron hydroxide and hydroxide iron mixture.
7. the removal of mercaptans method of light-end products as claimed in claim 6, which is characterized in that the iron hydroxide and sodium hydroxide
Ferrous ratio is 180：1.
8. the removal of mercaptans method of light-end products as described in claim 1, which is characterized in that the mercapfining light oil reaction
Reaction temperature be usually 10 DEG C~80 DEG C, reaction pressure is usually 0.1~1MPa.
9. a kind of sweetening unit of light-end products, which is characterized in that including main reaction tower and stand-by still, the main reaction tower top
Oil product entrance is arranged in portion, and main reaction tower both sides are arranged stand-by still, spray is both provided in the main reaction tower and stand-by still
Agitating device is arranged in device, the main reaction tower bottom, is respectively set two groups of adsorption layers in the stand-by still, in the adsorption layer
Adsorbent is filled, the stand-by still lower part also sets up recovery pipe, both ends setting exhaust outlet.
10. the sweetening unit of light-end products as claimed in claim 9, which is characterized in that also set in the middle part of the main reaction tower
Set buffer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742373.4A CN108795477A (en) | 2018-07-09 | 2018-07-09 | A kind of removal of mercaptans method and device of light-end products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742373.4A CN108795477A (en) | 2018-07-09 | 2018-07-09 | A kind of removal of mercaptans method and device of light-end products |
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| Publication Number | Publication Date |
|---|---|
| CN108795477A true CN108795477A (en) | 2018-11-13 |
Family
ID=64075729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810742373.4A Pending CN108795477A (en) | 2018-07-09 | 2018-07-09 | A kind of removal of mercaptans method and device of light-end products |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418229A (en) * | 2008-11-14 | 2009-04-29 | 中国石油化工集团公司 | Mercaptans removal apparatus for light oil and mercaptans removal method thereof |
| CN103374384A (en) * | 2012-04-27 | 2013-10-30 | 中国石油化工股份有限公司 | Method and device for removing mercaptan from light oil product |
| CN106433769A (en) * | 2016-11-18 | 2017-02-22 | 潍坊赛诺凯特催化剂有限公司 | Light oil desulphurization method and light oil desulphurization device |
-
2018
- 2018-07-09 CN CN201810742373.4A patent/CN108795477A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418229A (en) * | 2008-11-14 | 2009-04-29 | 中国石油化工集团公司 | Mercaptans removal apparatus for light oil and mercaptans removal method thereof |
| CN103374384A (en) * | 2012-04-27 | 2013-10-30 | 中国石油化工股份有限公司 | Method and device for removing mercaptan from light oil product |
| CN106433769A (en) * | 2016-11-18 | 2017-02-22 | 潍坊赛诺凯特催化剂有限公司 | Light oil desulphurization method and light oil desulphurization device |
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Application publication date: 20181113 |
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