BE617795A - - Google Patents
Info
- Publication number
- BE617795A BE617795A BE617795DA BE617795A BE 617795 A BE617795 A BE 617795A BE 617795D A BE617795D A BE 617795DA BE 617795 A BE617795 A BE 617795A
- Authority
- BE
- Belgium
- Prior art keywords
- stage
- sep
- crystallization
- mother liquor
- xylene
- Prior art date
Links
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims description 142
- 239000012452 mother liquor Substances 0.000 claims description 83
- 238000002425 crystallisation Methods 0.000 claims description 78
- 230000008025 crystallization Effects 0.000 claims description 78
- 239000013078 crystal Substances 0.000 claims description 59
- 239000000725 suspension Substances 0.000 claims description 59
- 238000000034 method Methods 0.000 claims description 46
- 230000008569 process Effects 0.000 claims description 34
- 238000001816 cooling Methods 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 15
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 claims description 12
- 239000008096 xylene Substances 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 11
- 238000004064 recycling Methods 0.000 claims description 9
- 239000000470 constituent Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 19
- 239000000047 product Substances 0.000 description 17
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 7
- 238000013019 agitation Methods 0.000 description 7
- 238000005119 centrifugation Methods 0.000 description 7
- 239000000706 filtrate Substances 0.000 description 7
- 238000011068 loading method Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 239000005977 Ethylene Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 150000003738 xylenes Chemical class 0.000 description 6
- 230000005496 eutectics Effects 0.000 description 5
- 235000012054 meals Nutrition 0.000 description 5
- 239000001294 propane Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000002407 reforming Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 150000001491 aromatic compounds Chemical class 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000006317 isomerization reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 239000012297 crystallization seed Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE617795A true BE617795A (enrdf_load_stackoverflow) |
Family
ID=193514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE617795D BE617795A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE617795A (enrdf_load_stackoverflow) |
-
0
- BE BE617795D patent/BE617795A/fr unknown
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