WO2022080635A1 - 폴리올레핀 엘라스토머 제조 설비 - Google Patents
폴리올레핀 엘라스토머 제조 설비 Download PDFInfo
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- WO2022080635A1 WO2022080635A1 PCT/KR2021/009672 KR2021009672W WO2022080635A1 WO 2022080635 A1 WO2022080635 A1 WO 2022080635A1 KR 2021009672 W KR2021009672 W KR 2021009672W WO 2022080635 A1 WO2022080635 A1 WO 2022080635A1
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- distillation column
- devolatilization
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- 229920006124 polyolefin elastomer Polymers 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002904 solvent Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims abstract description 14
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 238000004821 distillation Methods 0.000 claims description 74
- 238000004519 manufacturing process Methods 0.000 claims description 59
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 30
- 238000009835 boiling Methods 0.000 claims description 26
- 239000000126 substance Substances 0.000 claims description 26
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 21
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 19
- 239000005977 Ethylene Substances 0.000 claims description 19
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 150000002430 hydrocarbons Chemical class 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 238000005201 scrubbing Methods 0.000 claims 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 34
- 230000000052 comparative effect Effects 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methylcyclopentane Chemical compound CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 6
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 5
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- WPVNTHOFQMYAAS-UHFFFAOYSA-N 2-methylpentane Chemical compound CCCC(C)C.CCCC(C)C WPVNTHOFQMYAAS-UHFFFAOYSA-N 0.000 description 2
- LUDVEEBNBMDZST-UHFFFAOYSA-N 3-methylpentane Chemical compound CCC(C)CC.CCC(C)CC LUDVEEBNBMDZST-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 2
- 239000002954 polymerization reaction product Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- PFEOZHBOMNWTJB-UHFFFAOYSA-N 3 MP Natural products CCC(C)CC PFEOZHBOMNWTJB-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- WXCZUWHSJWOTRV-UHFFFAOYSA-N but-1-ene;ethene Chemical compound C=C.CCC=C WXCZUWHSJWOTRV-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- -1 for example Chemical compound 0.000 description 1
- JQOAQUXIUNVRQW-UHFFFAOYSA-N hexane Chemical compound CCCCCC.CCCCCC JQOAQUXIUNVRQW-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012968 metallocene catalyst Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/14—Monomers containing five or more carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/001—Removal of residual monomers by physical means
- C08F6/003—Removal of residual monomers by physical means from polymer solutions, suspensions, dispersions or emulsions without recovery of the polymer therefrom
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/008—Treatment of solid polymer wetted by water or organic solvents, e.g. coagulum, filter cakes
Definitions
- the present invention relates to a polyolefin elastomer manufacturing facility, and more particularly, to a process for recovering a solvent and unreacted material from a polyolefin elastomer manufacturing facility.
- Polyolefin elastomer is a copolymer of ethylene and alpha olefin having a low density among polyolefin-based products. ⁇ ), footwear, food films, and sealing materials.
- Metallocene catalysts were mainly used for the production of POE as described above, and studies have been made to improve the yield or efficiency of the POE manufacturing process by developing Ziegler-Natta catalysts or by expanding factories. There was room for improvement in terms of the cost required and the efficiency of using raw materials.
- Separation of solvents and unreacted substances during POE production mainly consists of two devolatilizers and one finisher (or extruder). , of which, in the first primary devolatilizer, which is relatively high pressure, the largest amount of solvent and unreacted substances are separated and discharged, and the composition of substances such as ethylene with a relatively low boiling point is high.
- the finisher the final residue is discharged together with the water through stripping in which vaporized water is discharged along with the remaining hydrocarbon gas, and these residues are included in the recycle flow as a recovery process after removing the water. .
- POE was mainly prepared from 1-octene or 1-butene, and most were produced by alternating two feeds. That is, it was necessary to consider the case of injecting 1-butene instead of 1-octene during the POE production process.
- n-hexane As the solvent used in the POE process as described above, high-purity n-hexane or high-purity methylcyclohexane was used. Conventionally, as the entire stream from the first primary devolatilizer is recovered, light substances such as ethane contained in ethylene, such as ethane contained in ethylene, have a low molecular weight and a low boiling point and high vapor pressure are concentrated, and n-hexane is obtained in the primary distillation column.
- the present invention does not use n-hexane of high purity of 99% or more as a solvent, while solving the problems as described above occurring in the POE manufacturing process prepared in the prior art, and a double bond among hydrocarbon compounds having 5 to 7 carbon atoms.
- an object of the present invention is to provide a solvent recovery process (SRU) capable of increasing the recovery rate of 1-octene or 1-butene as unreacted comonomers and minimizing the energy used in the process.
- SRU solvent recovery process
- the polyolefin elastomer manufacturing facility is a reactor that receives a solvent and a raw material, devolatilizes a product discharged from the reactor, removes unreacted substances (first devolatilization recovery flow), and discharges the remainder (primary devolatilization)
- the primary devolatilizer that performs volatilization production flow) the primary devolatilization production flow discharged from the primary devolatilizer is devolatilized again to further remove unreacted substances (secondary devolatilization recovery flow), and the remainder is discharged
- the middle portion of the primary distillation column 17 may be a point corresponding to 10 to 50% from the upper end of the primary distillation column 17 .
- a flash drum that removes low molecular substances (impurity removal flow) from the primary devolatilization recovery stream removed from the primary devolatilizer, and the remainder is recovered to the reactor, and an impurity removal stream removed from the flash drum and the 1 It may include a secondary distillation column for distilling the stream separated from the upper part of the secondary distillation column, and recovering the stream separated from the lower part to the reactor.
- impurity removal flow low molecular substances
- the raw material may include a material having a lower boiling point than ethylene and a solvent.
- the raw material may include 1-butene.
- the flow separated from the upper part of the primary distillation column may be maintained so that the mass flow rate is at most 9 times compared to the flow separated from the middle part of the primary distillation column.
- the flow separated from the upper portion of the primary distillation column may be maintained at 35 to 140 °C, 2 to 10 bar.
- it may further include a third distillation column for distilling the stream separated from the lower part of the primary distillation column, and recovering the stream separated from the middle part to the reactor.
- the middle portion of the third distillation column may be a point corresponding to 30 to 70% from the upper end of the third distillation column.
- the raw material may include ethylene and a material having a higher boiling point than the solvent.
- the raw material may include 1-octene.
- the solvent may include a mixture including a material having no double bond among hydrocarbon compounds having 5 to 7 carbon atoms and having a boiling point of 60 to 100° C. at atmospheric pressure.
- the process for recovering the solvent and unreacted material from the polyolefin elastomer manufacturing facility according to the present invention is to improve the method for recovering the solvent and unreacted material of the conventional POE process
- FIG. 1 is a schematic diagram of a polyolefin elastomer manufacturing facility according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a polyolefin elastomer manufacturing facility according to another embodiment of the present invention.
- FIG. 3 is a schematic diagram of a polyolefin elastomer manufacturing facility according to a comparative example of the present invention.
- FIG. 1 is a schematic diagram of a polyolefin elastomer manufacturing facility 10 according to an embodiment of the present invention.
- the polyolefin elastomer manufacturing facility 10 is for manufacturing ethylene-butene rubber (EBR).
- EBR ethylene-butene rubber
- the reactor 11 receives a solvent and a raw material to generate a polymerization reaction product.
- the solvent may include a mixture containing a material having a boiling point of 60-100° C. at atmospheric pressure without affecting the reaction because there is no double bond among hydrocarbon compounds having 5 to 7 carbon atoms, for example, n-hexane (n -hexane), more specifically about 63-71.2 wt% of n-hexane, about 0.016-0.63 wt% of cyclohexane, about 6-28.7 wt% of methylcyclopentane (methylcyclopentane), About 0.57-5.7 wt% of 2-methylpentane (2-methylpentane), about 5.4-22.3 wt% of 3-methylpentane (3-methylpentane), and the like may be included.
- the raw material may include, for example, ethylene and a substance having a lower boiling point than ethylene and a solvent, for example, 1-butene.
- the primary devolatilizer 12 devolatilizes the products (ie, polymerization reactants, solvents, monomers and comonomers as unreacted substances) discharged from the reactor 11 to remove unreacted substances.
- the stream 102 removed from the primary devolatilizer 12 as an unreacted material is referred to as a 'primary devolatilization circulation stream 102', and the remaining stream 103 discharged from the primary devolatilizer 12 ) is referred to as 'primary devolatilization production flow 103'.
- the secondary devolatilizer 13 devolatilizes the primary devolatilization production stream 103 discharged from the primary devolatilizer 12 again to further remove unreacted substances.
- the flow 104 removed from the secondary devolatilizer 13 as an unreacted product is referred to as a 'secondary devolatilization circulation flow 104', and the remaining flow 105 discharged from the secondary devolatilizer 13 as the remainder. ) is referred to as 'secondary devolatilization production flow 105'.
- the secondary devolatilization production stream 105 may include, for example, about 90-95 wt % polymer and other unreacted materials.
- a finisher 14 strips the secondary devolatilization production stream 105 exiting the secondary devolatilizer 13 with water. As a result, unreacted substances and water in the secondary devolatilization production flow 105 are vaporized, and the polymer product finally remains.
- the water removal process 15 removes water from the stream 106 which is removed from the finisher 14 as the unreacted and water.
- the flow 107 is referred to as a 'finisher reaction processing flow 107'.
- This reactor 11, the primary devolatilizer 12, the secondary devolatilizer 13, the finisher 14 and the water removal process 15 itself are substantially the same as known in the art or those skilled in the art Since it may be easily derived therefrom, further description thereof will be omitted.
- a flash drum 16 has a relatively low boiling point and high vapor pressure (more specifically comprising ethane) from the primary devolatilization cycle stream 102 that is removed from the primary devolatilizer 12 . Removes low molecular weight substances.
- the stream 108 removed from the flash drum 16 as a low molecular weight material including ethane is referred to as an 'impurity removal stream 108 '.
- the flash drum 16 recovers the stream 109 discharged from the flash drum 16 as the remainder to the reactor 11 .
- the primary distillation column 17 distills the secondary devolatilization circulation stream 104 discharged from the secondary devolatilizer 13 and the finisher reaction treatment stream 107 discharged from the water removal process 15, and the middle part
- the stream 110 separated from (more specifically, containing n-hexane) is returned to the reactor 11, and the stream 111 separated from the bottom thereof as a heavy material is discharged to the outside.
- the middle portion of the primary distillation column 17 may be, for example, a point corresponding to about 30-70% from the top thereof.
- the stream 112 separated from the top of the primary distillation column 17 (more specifically comprising C6 compounds and 1-butene) has a mass compared to the stream 110 separated from the middle portion of the primary distillation column 17 .
- the flow rate can be maintained at a minimum of 0.1 times and a maximum of 9 times.
- the stream 112 separated from the upper portion of the primary distillation column 17 may be maintained at 35-140° C., 2-10 bar.
- the stream 112 separated from the upper part of the primary distillation column 17 may be maintained, for example, at about 50°C.
- the present invention is not infringed by changing the temperature.
- the secondary distillation column 18 distills the impurity removal stream 108 removed from the flash drum 16 and the stream 112 separated from the top of the primary distillation column 17, and is separated from the bottom (more specifically, A stream 113 (comprising C6 compound and 1-butene) is returned to the reactor 11, and a stream 114 separated therefrom as an ethylene and 1-butene purge is discharged to the outside.
- the temperature, pressure, and flow rate for each flow may be, for example, as shown in Table 1 below (Example 1).
- FIG. 2 is a schematic diagram of a polyolefin elastomer manufacturing facility 10' according to another embodiment of the present invention.
- the polyolefin elastomer manufacturing facility is for manufacturing ethylene-octene rubber (EOR).
- EOR ethylene-octene rubber
- the reactor 11' is supplied with a solvent and a raw material to generate a polymerization reaction product.
- the solvent may include a mixture containing a material having a boiling point of 60-100° C. at atmospheric pressure without affecting the reaction because there is no double bond among hydrocarbon compounds having 5 to 7 carbon atoms, for example, n-hexane and more specifically about 63-71.2 wt% of n-hexane, about 0.016-0.63 wt% of cyclohexane, about 6-28.7 wt% of methylcyclopentane, and about 0.57-5.7 wt% of 2-methylpentane %, about 5.4-22.3 wt% 3-methylpentane, and the like.
- the raw material may include, for example, ethylene and a substance having a higher boiling point than ethylene and a solvent, such as 1-octene.
- the primary devolatilizer 12 ′, the secondary devolatilizer 13 ′, the finisher 14 ′, the water removal process 15 ′ and the flash drum 16 ′ are used for manufacturing a polyolefin elastomer according to an embodiment of the present invention. If it is substantially the same as the facility 10 or if it is a person skilled in the art, it is expected to change naturally in response to the difference in the characteristics of the EBR/EOR, and thus a repetitive description thereof will be omitted.
- the primary distillation column 17' distills the secondary devolatilization circulation stream 104' discharged from the secondary devolatilizer 13' and the finisher reaction treatment stream 107' discharged from the water removal process 15'.
- the stream 110 ′ separated from the middle portion (more specifically, including n-hexane) is recovered to the reactor 11 ′.
- the middle portion of the primary distillation column 17 ′ may be, for example, a point corresponding to about 10-50% from the top thereof.
- the stream 112' separated from the upper part of the primary distillation column 17' has a mass flow rate of at least 0.1 times and a maximum of 9 times compared to the stream 110' separated from the middle part of the primary distillation column 17'.
- the stream 112 ′ separated from the upper portion of the primary distillation column 17 ′ may be maintained at 35-80° C. and 5-10 bar.
- the stream 112 separated from the top of the primary distillation column 17 may be, for example, about 50°C.
- the present invention is not infringed by changing the temperature.
- the secondary distillation column 18' distills the impurity removal stream 108' removed from the flash drum 16' and the stream 112' separated from the top of the primary distillation column 17', and is separated from the bottom
- a stream 113' (which contains a C6 compound more specifically) is returned to the reactor 11', and a stream 114' separated from its top as an ethylene purge is discharged to the outside.
- the third distillation column 19' distills the stream 111' separated from the lower part of the primary distillation column 17', and the stream 116' (more specifically comprising 1-octene) is separated from the middle part thereof. ) is recovered to the reactor 11', and a stream 117' separated from its lower part as a heavy material and a stream 118' separated from its upper part as a purge are discharged to the outside.
- the middle portion of the third distillation column 19 ′ may be, for example, a point corresponding to about 30-70% from the top thereof.
- the temperature, pressure, and flow rate for each flow may be as shown in Table 2 below (Example 2).
- FIG. 3 is a schematic diagram of a polyolefin elastomer manufacturing facility 10′′ according to a comparative example of the present invention.
- the polyolefin elastomer manufacturing facility according to the comparative example of the present invention is for manufacturing ethylene-octene rubber (EOR).
- EOR ethylene-octene rubber
- a reactor 11 a primary devolatilizer (12"), a secondary devolatilizer ( 13"), finisher 14", water removal process 15", primary distillation column 17", secondary distillation column 18" and tertiary distillation column 19".
- the polyolefin elastomer manufacturing facility 10 ′′ according to the comparative example of the present invention omits the flash drum 16 ′, so that the primary devolatilization cycle The difference is that stream 102" is returned as is to reactor 11".
- the stream 112' separated from the upper part of the primary distillation column 17' contains a portion of the C6 compound and the stream 116 is separated into the middle part. ') contains the remainder of the C6 compound
- the polyolefin elastomer production facility 10" according to the comparative example of the present invention is a stream 112" separated from the top of the primary distillation column 17", that is, the secondary
- the stream 112" injected into the distillation column 18" contains all of the C6 compounds.
- the temperature for the stream 112" separated from the top of the primary column 17" is, for example, about 70- It may be 150°C.
- the polyolefin elastomer production facility 10" according to the comparative example of the present invention is a reactor 11" ), there is a difference in recovery.
- the temperature, pressure, and flow rate for each flow may be as shown in Table 3 below (Comparative Example).
- the replenishment amount of the raw material is the amount of replenishment in the reactor 11' to run the process in a steady state. ; 11") means the amount of raw materials that need to be supplemented with the reactor (11'; 11") in addition to the amount of raw materials excluding the amount consumed for polymer product synthesis (that is, the same amount as discarded) do.
- Tables 4 and 5 show the mass balance as ASPEN PLUS simulation results when 1-octene is 15 wt%, 24 wt%, and 35 wt%, respectively. At this time, the sum of the contents of the solvent, the monomer and the comonomer in the flow (101'; 101") injected into the reactor (11'; 11") as the base case was set to 92.2wt%.
- the primary devolatilization circulation stream 102" removed from the primary devolatilizer 12" is recovered to the reactor 11" as it is, it can be removed when concentrating a substance with a very low boiling point, such as ethane. There was no, because the separation of n-hexane through the top of the primary distillation column (17"), energy consumption is increased.
- Example 2 by removing a material having a low boiling point when recovering the unreacted material discharged from the primary devolatilizer 12', not only the above-mentioned material concentration can be prevented, but also the middle part of the primary distillation column 17' It is possible to reduce energy consumption by isolating the C6 compound through (this is also the same in Example 1). In addition, both impurities having a lower boiling point and impurities having a higher boiling point than 1-octene can be removed by the tertiary distillation column 19 ′, thereby improving process efficiency.
- polyolefin elastomer manufacturing processes 10 and 10' described above are only one of the polyolefin elastomer manufacturing processes according to various embodiments of the present invention.
- the technical spirit of the present invention is not limited to the above embodiments, and as described in the claims, it includes all the ranges that can be easily changed by a person of ordinary skill in the art to which the present invention belongs.
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Abstract
Description
흐름 부호 | 온도 | 압력 | 유량 |
101 | -18.4℃ | 90bar | 240t/hr |
102 | 169℃ | 9.6bar | 182t/hr |
104 | 180℃ | 3bar | 14.6t/hr |
106 | 200℃ | 50torr | 7.1t/hr |
107 | 45℃ | 4.5bar | 3-3.6t/hr |
108 | 94-102℃ | 9.1bar | 0.9-1.7t/hr |
110 | 96℃ | 2.2bar | 14.8t/hr |
112 | 50℃ | 2bar | 3t/hr |
113 | 155℃ | 8.4bar | 3.1-3.5t/hr |
114 | 50℃ | 8bar | 0.7-1.2t/hr |
115 | -14.2℃ | 90bar | 18t/hr |
흐름 부호 | 온도 | 압력 | 유량 |
101 | -18.5℃ | 90bar | 240t/hr |
102 | 180℃ | 9.6bar | 182t/hr |
104 | 200℃ | 3bar | 13.6-14.3t/hr |
106 | 200℃ | 50torr | 7-7.6t/hr |
107 | 45℃ | 4.5bar | 3-3.6t/hr |
108 | 50-70℃ | 9.1bar | 0.07-0.08t/hr |
110 | 95℃ | 2.1bar | 9.8-11.4t/hr |
111 | 152℃ | 2.2bar | 2.4-4.9t/hr |
112 | 50℃ | 2bar | 2.6-3.4t/hr |
113 | 154℃ | 8.4bar | 2.5-3.2t/hr |
114 | 92-106℃ | 8bar | 0.2-0.3t/hr |
115 | -14℃ | 90bar | 12.2-14.6t/hr |
116 | -15℃ | 90bar | 2.1-4.7t/hr |
117 | 161℃ | 2.7bar | 0.2-1.5t/hr |
118 | 157℃ | 2.5bar | 0.15t/hr |
흐름 부호 | 온도 | 압력 | 유량 |
101" | -18.5℃ | 90bar | 240t/hr |
102" | 182℃ | 9.6bar | 182t/hr |
104" | 200℃ | 3bar | 13.8-14.4t/hr |
106" | 200℃ | 50torr | 6.9-7.6t/hr |
107" | 45℃ | 4.5bar | 2.9-3.6t/hr |
111" | 150℃ | 2.2bar | 2.6-5.1t/hr |
112" | 91℃ | 2bar | 12.3-14.7t/hr |
113" | -14℃ | 90bar | 11.6-14t/hr |
114" | 131℃ | 8bar | 0.7-0.8t/hr |
117" | 161℃ | 2.7bar | 0.2-1.3t/hr |
1-옥텐 (wt%) |
에틸렌+ 1-옥텐+C6s (wt%) |
C2= makeup (kg/hr) |
1-C8 makeup (kg/hr) |
C6s makeup (kg/hr) |
증류탑의 열부하의 합 (리보일러//콘덴서) (MMcal/hr) |
15 | 99.16 | 94 | 261 | 768 | 11.65//-12.41 |
24 | 99.17 | 91.5 | 650 | 702 | 11.1//-11.81 |
35 | 99.20 | 85 | 1425 | 685 | 10.01//-10.67 |
1-옥텐 (wt%) |
에틸렌+ 1-옥텐+C6s (wt%) |
C2= makeup (kg/hr) |
1-C8 makeup (kg/hr) |
C6s makeup (kg/hr) |
증류탑의 열부하의 합 (리보일러//콘덴서) (MMcal/hr) |
15 | 99.21 | 98 | 334 | 207 | 3.47//-4.46 |
24 | 99.21 | 93 | 821 | 207 | 3.10//-4.02 |
35 | 99.20 | 86 | 1603 | 106 | 2.57//-3.43 |
Claims (12)
- 용매 및 원료를 공급받는 반응기,상기 반응기로부터 배출되는 생성물을 탈휘발하여, 미반응물을 제거(1차 탈휘발 회수 흐름)하고, 그 나머지를 배출(1차 탈휘발 제조 흐름)하는 1차 탈휘발기,상기 1차 탈휘발기로부터 배출되는 1차 탈휘발 제조 흐름을 재차 탈휘발하여, 미반응물을 더 제거(2차 탈휘발 회수 흐름)하고, 그 나머지를 배출(2차 탈휘발 제조 흐름)하는 2차 탈휘발기,물을 이용해, 상기 2차 탈휘발기로부터 배출되는 2차 탈휘발 제조 흐름을 스크럽함으로써, 미반응물 및 물이 기화하고, 고분자 제품이 잔류하게 되는 피니셔,상기 피니셔에서 제거되는 미반응물 및 물로부터 물을 제거하고, 그 나머지를 배출(피니셔 반응 처리 흐름)하는 물 제거 공정 및상기 2차 탈휘발기에서 제거되는 2차 탈휘발 순환 흐름 및 상기 물 제거 공정으로부터 배출되는 피니셔 반응 처리 흐름을 증류하여, 그 중간부로부터 분리되는 흐름을 상기 반응기로 회수하는 1차 증류탑을 포함하는 폴리올레핀 엘라스토머 제조 설비.
- 제1항에 있어서,상기 1차 증류탑(17)의 중간부는 상기 1차 증류탑(17)의 상단에서부터 10 내지 50%에 해당하는 지점인 폴리올레핀 엘라스토머 제조 설비.
- 제1항에 있어서,상기 1차 탈휘발기에서 제거되는 1차 탈휘발 회수 흐름으로부터 저분자 물질을 제거(불순물 제거 흐름)하고, 그 나머지를 상기 반응기로 회수하는 플래시 드럼 및상기 플래시 드럼에서 제거되는 불순물 제거 흐름 및 상기 1차 증류탑의 상부로부터 분리되는 흐름을 증류하여, 그 하부로부터 분리되는 흐름을 상기 반응기로 회수하는 2차 증류탑을 포함하는 폴리올레핀 엘라스토머 제조 설비.
- 제3항에 있어서,상기 원료는 에틸렌과 용매보다 끓는점이 낮은 탄화수소 중 이중결합 또는 삼중결합이 존재하여 에틸렌과 공중합하여 고분자를 형성할 수 있는 물질을 포함하는 폴리올레핀 엘라스토머 제조 설비.
- 제3항에 있어서,상기 원료는 1-뷰텐을 포함하는 폴리올레핀 엘라스토머 제조 설비.
- 제3항에 있어서,상기 1차 증류탑의 상부로부터 분리되는 흐름은 상기 1차 증류탑의 중간부로부터 분리되는 흐름에 비해 질량 유속이 최소 0.1배, 최대 9배가 되도록 유지되는 폴리올레핀 엘라스토머 제조 설비.
- 제3항에 있어서,상기 1차 증류탑의 상부로부터 분리되는 흐름은 35 내지 140℃, 2 내지 10bar로 유지되는 폴리올레핀 엘라스토머 제조 설비.
- 제3항에 있어서,상기 1차 증류탑의 하부로부터 분리되는 흐름을 증류하여, 그 상부 혹은중간부로부터 분리되는 흐름을 상기 반응기로 회수하는 3차 증류탑을 더 포함하는 폴리올레핀 엘라스토머 제조 설비.
- 제8항에 있어서,상기 3차 증류탑의 중간부는 상기 3차 증류탑의 상단에서부터 30 내지 70%에 해당하는 지점인 폴리올레핀 엘라스토머 제조 설비.
- 제8항에 있어서,상기 원료는 용매보다 끓는점이 높은 탄화수소 중 이중결합 또는 삼중결합이 존재하여 에틸렌과 공중합하여 고분자를 형성할 수 있는 물질을 포함하는 폴리올레핀 엘라스토머 제조 설비.
- 제8항에 있어서,상기 원료는 1-옥텐을 포함하는 폴리올레핀 엘라스토머 제조 설비.
- 제1항에 있어서,상기는 용매는 탄소수가 5개 내지 7개인 탄화수소 화합물 중 이중 결합이 없고 끓는점이 상압에서 60 내지 100℃인 물질을 포함하는 혼합물을 포함하는 폴리올레핀 엘라스토머 제조 설비.
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WO2002004529A2 (en) * | 2000-07-11 | 2002-01-17 | Union Carbide Chemicals & Plastics Technology Corporation | Method of reducing formation of precipitates in solvent recovery system |
US20110263807A1 (en) * | 2008-11-25 | 2011-10-27 | Basell Poliolefine Italia S.R.L. | Solution Process for the Olefins Polymerization |
KR20150081565A (ko) * | 2014-01-06 | 2015-07-15 | 대림산업 주식회사 | 에틸렌과 알파-올레핀의 중합 장치 및 제조방법 |
KR20170074658A (ko) * | 2015-12-22 | 2017-06-30 | 주식회사 엘지화학 | 에너지가 절감된 폴리올레핀 수지의 정제 방법 |
KR20200055720A (ko) * | 2017-12-04 | 2020-05-21 | 보레알리스 아게 | 용액 중합 공정에서의 올레핀 회수 방법 |
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2002004529A2 (en) * | 2000-07-11 | 2002-01-17 | Union Carbide Chemicals & Plastics Technology Corporation | Method of reducing formation of precipitates in solvent recovery system |
US20110263807A1 (en) * | 2008-11-25 | 2011-10-27 | Basell Poliolefine Italia S.R.L. | Solution Process for the Olefins Polymerization |
KR20150081565A (ko) * | 2014-01-06 | 2015-07-15 | 대림산업 주식회사 | 에틸렌과 알파-올레핀의 중합 장치 및 제조방법 |
KR20170074658A (ko) * | 2015-12-22 | 2017-06-30 | 주식회사 엘지화학 | 에너지가 절감된 폴리올레핀 수지의 정제 방법 |
KR20200055720A (ko) * | 2017-12-04 | 2020-05-21 | 보레알리스 아게 | 용액 중합 공정에서의 올레핀 회수 방법 |
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