CN102464555A - Polymerization inhibitor for thermal dimerization process of five fractions of petroleum cracking carbon - Google Patents
Polymerization inhibitor for thermal dimerization process of five fractions of petroleum cracking carbon Download PDFInfo
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- CN102464555A CN102464555A CN201010535960XA CN201010535960A CN102464555A CN 102464555 A CN102464555 A CN 102464555A CN 201010535960X A CN201010535960X A CN 201010535960XA CN 201010535960 A CN201010535960 A CN 201010535960A CN 102464555 A CN102464555 A CN 102464555A
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- stopper
- octanol
- aminophenol
- dmko
- ortho
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000005120 petroleum cracking Methods 0.000 title claims abstract description 22
- 238000006471 dimerization reaction Methods 0.000 title claims abstract description 21
- 239000003112 inhibitor Substances 0.000 title abstract description 17
- 238000006116 polymerization reaction Methods 0.000 title abstract description 12
- 238000000034 method Methods 0.000 title abstract description 7
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims abstract description 90
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims abstract description 76
- CDAWCLOXVUBKRW-UHFFFAOYSA-N 2-aminophenol Chemical compound NC1=CC=CC=C1O CDAWCLOXVUBKRW-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002904 solvent Substances 0.000 claims abstract description 19
- 239000003208 petroleum Substances 0.000 claims description 19
- 150000001993 dienes Chemical class 0.000 abstract description 11
- 238000007334 copolymerization reaction Methods 0.000 abstract description 5
- 230000005764 inhibitory process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- PXAJQJMDEXJWFB-UHFFFAOYSA-N acetone oxime Chemical compound CC(C)=NO PXAJQJMDEXJWFB-UHFFFAOYSA-N 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 1
- HECLRDQVFMWTQS-UHFFFAOYSA-N Dicyclopentadiene Chemical compound C1C2C3CC=CC3C1C=C2 HECLRDQVFMWTQS-UHFFFAOYSA-N 0.000 description 35
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 14
- -1 isoprenyl Chemical group 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- XNMQEEKYCVKGBD-UHFFFAOYSA-N 2-butyne Chemical compound CC#CC XNMQEEKYCVKGBD-UHFFFAOYSA-N 0.000 description 2
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical compound CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 235000008708 Morus alba Nutrition 0.000 description 2
- 240000000249 Morus alba Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CNHDIAIOKMXOLK-UHFFFAOYSA-N toluquinol Chemical group CC1=CC(O)=CC=C1O CNHDIAIOKMXOLK-UHFFFAOYSA-N 0.000 description 2
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-UHFFFAOYSA-N 0.000 description 1
- KGWDUNBJIMUFAP-KVVVOXFISA-N Ethanolamine Oleate Chemical compound NCCO.CCCCCCCC\C=C/CCCCCCCC(O)=O KGWDUNBJIMUFAP-KVVVOXFISA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 150000001941 cyclopentenes Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- FVCOIAYSJZGECG-UHFFFAOYSA-N diethylhydroxylamine Chemical compound CCN(O)CC FVCOIAYSJZGECG-UHFFFAOYSA-N 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- NWVVVBRKAWDGAB-UHFFFAOYSA-N hydroquinone methyl ether Natural products COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 1
- QMMOXUPEWRXHJS-UHFFFAOYSA-N pent-2-ene Chemical group CCC=CC QMMOXUPEWRXHJS-UHFFFAOYSA-N 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical group CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a polymerization inhibitor used in the thermal dimerization process of five fractions of petroleum cracking carbon; it consists of dimethyl ketoxime, octanol and o-aminophenol; the weight ratio of the dimethyl ketoxime to the octanol to the o-aminophenol is 1: 0.01-10.0: 0.1-12.0; the content of dimethyl ketoxime, octanol and o-aminophenol in the solvent is 1-20 wt%; the dosage of the polymerization inhibitor in the petroleum cracking carbon five fraction is 50-1200 ppm by weight; the catalyst has good polymerization inhibition effect, can effectively inhibit the self polymerization or copolymerization of diolefins in the petroleum cracking carbon five-fraction in a reactor or a separation tower, avoids the blockage of a preheater or a reboiler, prolongs the stable operation period of the device, effectively reduces the loss rate of isoprene, has small dosage, low cost and is easy to separate.
Description
Technical field
The present invention relates to a kind of five fractions of petroleum cracked carbon polymeric stopper that is used to suppress, particularly the hot dimerization of five fractions of petroleum cracked carbon suppresses the stopper of olefinic polymerization.
Background technology
C5 fraction (its classical group prejudice table 1) is the by product of petroleum cracking system ethene, generally is about 10%～20% of ethylene yield.China's carbon five resources never obtain good use, have only few part to be used to produce common C 5 petroleum resin, or carry out simple separation and produce NSC 7352 (DCPD), and major part acts as a fuel and burns, and causes significant wastage.If the component in the C5 fraction is separated, produce the Chemicals of a series of high added values through them, can reduce production cost of ethylene greatly, improve economic benefit of enterprises and competitive power.
At present, carbon five separates and utilizes cyclopentadiene (CPD) to be easy to the characteristics that autohemagglutination becomes DCPD mostly, at first, with the hot dimerization of carbon slender acanthopanax, remove DCPD and other heavy constituent after, separating isoprene (IP) and m-pentadiene (PD) from light constituent again.Because component is many in the cracking c_5, cause hot dimerization reaction process very complicated, CPD is easy to dimerization and generates DCPD, also can generate dipolymer with IP or PD copolymerization simultaneously, causes IP and PD loss, is mixed with a large amount of multipolymers among the DCPD that obtains simultaneously, makes its content lower.
In the hot dimerization of C5 fraction, generally adopt pressurized operation, the renders operation temperature is higher; And diolefin character is very active, and the higher or easy polymerization reaction take place when contacting with oxide compound in temperature is when diolefin concentration is higher; Be prone to generate polymkeric substance, after the formation polymerization site, the molecular weight of polymkeric substance increases gradually; Its mobile variation; Finally make line clogging and reactor wall gum deposit, cause loss of monomer, energy consumption increase, heat exchange weak effect, must clean reactor drum, pre-heating system and pipeline when serious comprehensively.
In the hot dimerization of C5 fraction, the yield of NSC 7352 and the rate of loss of isoprene are to investigate the important indicator of hot dimerization processes.In the prior art, there are two kinds of ways can reduce the rate of loss of isoprene greatly: 1. to reduce temperature of reaction, (this method is cost to increase energy consumption with improving production cost to prolong the reaction times.) 2. in sepn process, introduce stopper efficiently, inhibition of isoprenyl and other diolefin form multipolymer.
At present, in the inhibition five fractions of petroleum cracked carbon of using always there be the stopper of diolefin polymerization: o-NP, oil of mirbane, furfural, thanomin or Sodium Nitrite etc. that ZL96116289.9 introduces; Diethyl azanol and adjacent methyl hydroquinone that CN1699310A introduces.Generally select for use the principle of stopper to be: can effectively suppress diolefin autohemagglutination or copolymerization in reactor drum or knockout tower, be easy to again separate, thereby do not influence isoprene, m-pentadiene quality product; Again can be in gas phase Mulberry Extract, molecular weight that again can telomerized polymer makes logistics have good mobility; In the hot dimerization of petroleum cracking C 5 fraction, under the situation that does not influence the cyclopentadiene transformation efficiency, can effectively reduce the isoprene rate of loss.What time above consideration is, and above-mentioned stopper is not well suited for.
Summary of the invention
The purpose of this invention is to provide a kind of stopper that is used for suppressing the five fractions of petroleum cracked carbon diolefin polymerization; This stopper is specially adapted to the hot dimerization of diolefin in the five fractions of petroleum cracked carbon; It can effectively suppress the obstruction of diolefin autohemagglutination or copolymerization in hot dipolymer reactor, preheater; Can be in gas phase Mulberry Extract, molecular weight that again can telomerized polymer makes logistics have good mobility; In the hot dimerization of five fractions of petroleum cracked carbon, under the situation that does not influence the cyclopentadiene transformation efficiency, can effectively reduce the isoprene rate of loss.Simultaneously be easy to isolate the diolefin system again.
For solving the problem that reduces the isoprene rate of loss in the five fractions of petroleum cracked carbon in the hot dimerization of diolefin, adopt following technical scheme:
A kind of stopper that is used for suppressing the five fractions of petroleum cracked carbon diolefin polymerization, it is made up of DMKO, octanol and Ortho-Aminophenol.Be accurate measurement, preferably above-mentioned stopper be dissolved in five fractions of petroleum cracked carbon or the isoprene.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 0.01～10.0: 0.1～12.0, and DMKO, octanol and the Ortho-Aminophenol content in solvent is 1～20wt%.The weight ratio of DMKO, octanol and Ortho-Aminophenol is preferably 1: 2.0～and 8.0: 1.0～4.0, DMKO, octanol and the Ortho-Aminophenol total content in solvent is preferably 7～12wt%.
In the hot dimerization of five fractions of petroleum cracked carbon, in five fractions of petroleum cracked carbon, add above-mentioned stopper; When adding stopper, preferably adopt continuous pump to inject five fractions of petroleum cracked carbon, stopper is distributed in whole hot dipolymer reactor preferably.Inhibitor concentration is 50～1200ppm in the reactant, and optimum range is 200～600ppm.
Compared with prior art, stopper provided by the invention has better polymerization inhibition effect, and stopper can get in the gas phase, catches the radical that exists in the gas phase; In case formation polymkeric substance; Can avoid forming superpolymer; Make logistics keep good mobility; This stopper more can effectively suppress diolefin autohemagglutination or copolymerization in reactor drum or knockout tower in the petroleum cracking C 5 fraction, avoids preheater or reboiler to block, thus the stable operation cycle of extension fixture; In the hot dimerization of five fractions of petroleum cracked carbon, under the situation that does not influence the cyclopentadiene transformation efficiency, can effectively reduce the isoprene rate of loss.The stopper consumption is few, can reduce production costs; Various components of stopper and solvent and five fractions of petroleum cracked carbon boiling point differ bigger, thereby are easy to separate.
Embodiment
One, the preparation of stopper
Take by weighing DMKO, octanol and Ortho-Aminophenol in proportion, and be dissolved in solvent acetonitrile or the N.Control DMKO, octanol and Ortho-Aminophenol, the total content of three components is between 7～12wt%.Concrete DMKO, octanol and Ortho-Aminophenol weight ratio and the solvent of each embodiment specifies hereinafter.
Two, the evaluation test of stopper
Pressure at 3 250ml holds the petroleum cracking C 5 fraction that adds 200ml in the bullet respectively, with syringe the stopper for preparing is joined in the carbon five in the desired amount again, weighs; Install 3 blank that do not add stopper simultaneously, weigh.Put into water-bath, make an experiment, take out after the time and be cooled to room temperature by the temperature and time of design.3 pressure appearance bullets and 3 blank are moved in the vacuum drying oven, at 35 ℃ of following reduction vaporization 2h, vacuum tightness 0.08Mpa.Take out and weigh respectively, calculate the MV G1 that 6 pressure hold the polymer content in the bullet, calculate the MV G2 of the polymer content in 3 blank.
Stopper consumption (in the total amount of DMKO, octanol and Ortho-Aminophenol) and NSC 7352 yield, isoprene rate of loss specify in an embodiment.
Three, NSC 7352 yield and isoprene rate of loss method of calculation
The evaluation test of table 1 stopper is formed with petroleum cracking carbon Wuyuan material
| Sequence number | The component title | Content (%wt) |
| 1 | Anti-butylene | 2.04 |
| 2 | Maleic | 3.21 |
| 3 | Pentamethylene | 1.67 |
| 4 | Iso-pentane | 2.84 |
| 5 | Skellysolve A | 6.71 |
| 6 | 1 | 0.54 |
| 7 | 1,3-butadiene | 5.56 |
| 8 | 3-methyl-1-butene | 0.84 |
| 9 | Cyclopentenes | 4.50 |
| 10 | Instead-the 2-amylene | 2.94 |
| 11 | The 2-methyl-2-butene | 2.37 |
| 12 | The 1-amylene | 4.16 |
| 13 | 2-methyl-1-butene alkene | 4.32 |
| 14 | 2-butyne | 0.69 |
| 15 | 1, the 4-pentadiene | 2.40 |
| 16 | Isoprene | 23.36 |
| 17 | Cyclopentadiene | 5.78 |
| 18 | Along 1,3-pentadiene | 6.70 |
| 19 | Anti-1,3-pentadiene | 11.95 |
| 20 | X3 | 5.83 |
| 21 | Benzene | 0.34 |
[embodiment 1]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is a petroleum cracking carbon five.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 0.1: 0.2, inhibitor concentration 300ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 95.93%, isoprene rate of loss: 15.12%.
[embodiment 2]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is a petroleum cracking carbon five.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 2.0: 3.0, inhibitor concentration 300ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 95.89%, isoprene rate of loss: 16.40%.
[embodiment 3]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is a petroleum cracking carbon five.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 3.0: 2.0, inhibitor concentration 200ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 96.86%, isoprene rate of loss: 18.63%.
[embodiment 4]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is a petroleum cracking carbon five.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 2.5: 2.5, inhibitor concentration 200ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 96.75%, isoprene rate of loss: 19.26%.
[embodiment 5]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is a petroleum cracking carbon five.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 2.5: 2.5, inhibitor concentration 300ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 96.19%, isoprene rate of loss: 16.42%.
[embodiment 6]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is a petroleum cracking carbon five.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 2.5: 2.5, inhibitor concentration 400ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 95.87%, isoprene rate of loss: 14.23%.
[embodiment 7]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is a petroleum cracking carbon five.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 2.5: 2.5, inhibitor concentration 500ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 95.02%, isoprene rate of loss: 12.16%.
[embodiment 8]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is a petroleum cracking carbon five.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 2.5: 2.5, inhibitor concentration 600ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 94.85%, isoprene rate of loss: 10.17%.
[embodiment 9]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is an isoprene.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 3.0: 3.5, inhibitor concentration 400ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 96.17%, isoprene rate of loss: 18.54%.
[embodiment 10]
Component is DMKO, octanol and Ortho-Aminophenol, and solvent is an isoprene.The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 2.0: 4.0, inhibitor concentration 300ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 96.29%, isoprene rate of loss: 17.26%.
[comparative example 1]
Component is a DMKO, inhibitor concentration 300ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 96.58%, isoprene rate of loss: 16.52%.
[comparative example 2]
Component is an octanol, inhibitor concentration 300ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 96.67%, isoprene rate of loss: 19.81%.
[comparative example 3]
Component is an Ortho-Aminophenol, inhibitor concentration 300ppm.Before adding stopper, the NSC 7352 yield: 96.62%, isoprene rate of loss: 22.39%; After adding stopper, the NSC 7352 yield: 95.95%, isoprene rate of loss: 15.67%.
Claims (5)
1. stopper that is used for the hot dimerization of five fractions of petroleum cracked carbon, it is characterized in that: it is made up of DMKO, octanol and Ortho-Aminophenol; The weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 0.01～10.0: 0.1～12.0; DMKO, octanol and the Ortho-Aminophenol content in solvent is 1～20wt%.
2. a kind of stopper that is used for the hot dimerization of petroleum cracking C 5 fraction according to claim 1; It is characterized in that: the weight ratio of DMKO, octanol and Ortho-Aminophenol is 1: 2.0～8.0: 1.0～4.0, and DMKO, octanol and the Ortho-Aminophenol total content in solvent is 7～12wt%.
3. a kind of stopper that is used for the hot dimerization of petroleum cracking C 5 fraction according to claim 1 is characterized in that: said solvent is petroleum cracking C 5 fraction or isoprene.
4. a kind of application that is used for the stopper of the hot dimerization of petroleum cracking C 5 fraction according to claim 1 is characterized in that: the consumption of stopper in five fractions of petroleum cracked carbon is 50～1200ppm by weight.
5. a kind of application that is used for the stopper of the hot dimerization of petroleum cracking C 5 fraction according to claim 4 is characterized in that: the consumption of stopper in five fractions of petroleum cracked carbon is 200～600ppm by weight.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106179122A (en) * | 2015-04-30 | 2016-12-07 | 中国石油化工股份有限公司 | The consersion unit of alkadienes and application thereof |
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| US5907071A (en) * | 1998-04-21 | 1999-05-25 | Betzdearborn Inc. | Compositions and methods for inhibiting vinyl aromatic monomer polymerization |
| CN1324338A (en) * | 1998-11-05 | 2001-11-28 | 贝茨迪尔博恩公司 | Methods and compositions for inhibiting polymerization of ethylenically unsaturated hydrocarbons |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179122A (en) * | 2015-04-30 | 2016-12-07 | 中国石油化工股份有限公司 | The consersion unit of alkadienes and application thereof |
| CN106179122B (en) * | 2015-04-30 | 2019-06-28 | 中国石油化工股份有限公司 | The consersion unit of alkadienes and its application |
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