JP5873101B2 - 増加した製造速度での酢酸の製造 - Google Patents
増加した製造速度での酢酸の製造 Download PDFInfo
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- JP5873101B2 JP5873101B2 JP2013540038A JP2013540038A JP5873101B2 JP 5873101 B2 JP5873101 B2 JP 5873101B2 JP 2013540038 A JP2013540038 A JP 2013540038A JP 2013540038 A JP2013540038 A JP 2013540038A JP 5873101 B2 JP5873101 B2 JP 5873101B2
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title claims description 180
- 238000004519 manufacturing process Methods 0.000 title claims description 41
- 238000001035 drying Methods 0.000 claims description 137
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 86
- 238000006243 chemical reaction Methods 0.000 claims description 70
- 238000000034 method Methods 0.000 claims description 62
- 239000000047 product Substances 0.000 claims description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- 238000005810 carbonylation reaction Methods 0.000 claims description 48
- 230000006315 carbonylation Effects 0.000 claims description 41
- 230000008569 process Effects 0.000 claims description 36
- 239000003054 catalyst Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 33
- 229910001868 water Inorganic materials 0.000 claims description 33
- 239000000203 mixture Substances 0.000 claims description 30
- 239000000376 reactant Substances 0.000 claims description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 24
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 24
- 239000012043 crude product Substances 0.000 claims description 23
- 239000012429 reaction media Substances 0.000 claims description 23
- 238000012546 transfer Methods 0.000 claims description 23
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 22
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 22
- 239000012264 purified product Substances 0.000 claims description 22
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 20
- 239000007795 chemical reaction product Substances 0.000 claims description 20
- 238000004821 distillation Methods 0.000 claims description 19
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 14
- 229910052736 halogen Inorganic materials 0.000 claims description 12
- 150000002367 halogens Chemical class 0.000 claims description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- 238000000746 purification Methods 0.000 description 19
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 description 13
- 241001417501 Lobotidae Species 0.000 description 12
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 11
- 229910052741 iridium Inorganic materials 0.000 description 11
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 11
- 238000001816 cooling Methods 0.000 description 9
- 239000012071 phase Substances 0.000 description 9
- 239000010948 rhodium Substances 0.000 description 9
- 238000009835 boiling Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical group [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 8
- 229910052703 rhodium Inorganic materials 0.000 description 8
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 8
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- -1 Platinum Metals Chemical class 0.000 description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
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- 229940006461 iodide ion Drugs 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 150000004714 phosphonium salts Chemical class 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- IQGZCSXWIRBTRW-ZZXKWVIFSA-N (2E)-2-ethyl-2-butenal Chemical compound CC\C(=C/C)C=O IQGZCSXWIRBTRW-ZZXKWVIFSA-N 0.000 description 1
- UNNGUFMVYQJGTD-UHFFFAOYSA-N 2-Ethylbutanal Chemical compound CCC(CC)C=O UNNGUFMVYQJGTD-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- ZYSSNSIOLIJYRF-UHFFFAOYSA-H Cl[Ir](Cl)(Cl)(Cl)(Cl)Cl Chemical compound Cl[Ir](Cl)(Cl)(Cl)(Cl)Cl ZYSSNSIOLIJYRF-UHFFFAOYSA-H 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
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- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- WDJHALXBUFZDSR-UHFFFAOYSA-M acetoacetate Chemical compound CC(=O)CC([O-])=O WDJHALXBUFZDSR-UHFFFAOYSA-M 0.000 description 1
- CUJRVFIICFDLGR-UHFFFAOYSA-N acetylacetonate Chemical compound CC(=O)[CH-]C(C)=O CUJRVFIICFDLGR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005882 aldol condensation reaction Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
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- MLUCVPSAIODCQM-NSCUHMNNSA-N crotonaldehyde Chemical compound C\C=C\C=O MLUCVPSAIODCQM-NSCUHMNNSA-N 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
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- 229930195733 hydrocarbon Natural products 0.000 description 1
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- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910000043 hydrogen iodide Inorganic materials 0.000 description 1
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- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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- 150000004694 iodide salts Chemical class 0.000 description 1
- HLYTZTFNIRBLNA-LNTINUHCSA-K iridium(3+);(z)-4-oxopent-2-en-2-olate Chemical compound [Ir+3].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O HLYTZTFNIRBLNA-LNTINUHCSA-K 0.000 description 1
- KZLHPYLCKHJIMM-UHFFFAOYSA-K iridium(3+);triacetate Chemical compound [Ir+3].CC([O-])=O.CC([O-])=O.CC([O-])=O KZLHPYLCKHJIMM-UHFFFAOYSA-K 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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- 230000003647 oxidation Effects 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
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- 239000002243 precursor Substances 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
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- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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- HGBOYTHUEUWSSQ-UHFFFAOYSA-N valeric aldehyde Natural products CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
- C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
[1]反応媒体を含む反応器内において、一酸化炭素を少なくとも1種類の反応物質と反応させて酢酸を含む反応生成物を生成させ、ここで、少なくとも1種類の反応物質は、メタノール、酢酸メチル、ギ酸メチル、ジメチルエーテル、及びこれらの混合物からなる群から選択され、反応媒体は、水、ハロゲン促進剤、及び触媒を含み;
フラッシャー内において、反応生成物を分離して粗生成物流及び液体再循環流を生成させ;
軽質留分カラム内において、粗生成物流を精製して精製した生成物流を生成させ;
第1の乾燥カラム内において、精製した生成物流の第1の部分を乾燥し;そして
第2の乾燥カラム内において、精製した生成物流の第2の部分を乾燥する;
工程を含む、酢酸を製造するカルボニル化方法。
[2]熱伝達システム内において、反応生成物を生成する反応からの熱から水蒸気を生成させ;そして
水蒸気の少なくとも一部を第2の乾燥カラムに送り、ここで水蒸気によって第2の乾燥カラム内での分離を推進するのに必要なエネルギーの一部を与える;
ことを更に含む、[1]に記載の方法。
[3]水蒸気の少なくとも一部を第2の乾燥カラムのリボイラーに送る、[2]に記載の方法。
[4]熱伝達システムが1以上の熱交換器を更に含む、[2]に記載の方法。
[5]第1の乾燥カラムからの1以上の蒸気流を第2の乾燥カラムに送ることを更に含む、[1]に記載の方法。
[6]第2の乾燥カラムが、第1の乾燥カラムの底部温度よりも低い好ましくは125℃〜175℃の底部温度を有する、[1]に記載の方法。
[7]第2の乾燥カラムが、第1の乾燥カラムの圧力よりも低い好ましくは1bar(絶対圧)〜5bar(絶対圧)の圧力を有する、[1]に記載の方法。
[8]反応器を約190℃〜約225℃の上昇させた反応温度で運転する、[1]に記載の方法。
[9]反応媒体を含む反応器内において、一酸化炭素を少なくとも1種類の反応物質と反応させて酢酸を含む反応生成物を生成させ、ここで少なくとも1種類の反応物質は、メタノール、酢酸メチル、ギ酸メチル、ジメチルエーテル、及びこれらの混合物からなる群から選択され、反応媒体は、水、ハロゲン促進剤、及び触媒を含み;
フラッシャー内において、反応生成物を分離して粗生成物流及び液体再循環流を生成させ;
1以上の蒸留カラム内において、粗生成物流を蒸留して酢酸生成物流を生成させ;そして
熱伝達システム内において、反応生成物を生成する反応の熱から水蒸気を生成させ;水蒸気の一部を1以上の蒸留カラムに送り、ここで、水蒸気によって1以上の蒸留カラム内での分離を推進するのに必要なエネルギーの一部を与える;
工程を含む、酢酸製造プロセスにおいて反応温度を制御する方法。
[10]1以上の蒸留カラムが第1の乾燥カラム及び第2の乾燥カラムを含む、[9]に記載の方法。
[11]水蒸気の一部を第1の乾燥カラム及び/又は第2の乾燥カラムのリボイラーに送る、[10]に記載の方法。
[12]第2の乾燥カラムが、第1の乾燥カラムの底部温度よりも低い好ましくは125℃〜175℃の底部温度を有する、[10]に記載の方法。
[13]第2の乾燥カラムが、第1の乾燥カラムの圧力よりも低い好ましくは1bar(絶対圧)〜5bar(絶対圧)の圧力を有する、[10]に記載の方法。
[14]反応器を約190℃〜約225℃の上昇させた反応温度で運転する、[9]に記載の方法。
[0012]下記において、添付の図面を参照して本発明を詳細に説明する。ここで、同様の数字は同様の構成要素を示す。
Claims (12)
- 反応媒体を含む反応器内において、一酸化炭素を少なくとも1種類の反応物質と反応させて酢酸を含む反応生成物を生成させ、ここで、該少なくとも1種類の反応物質は、メタノール、酢酸メチル、ギ酸メチル、ジメチルエーテル、及びこれらの混合物からなる群から選択され、該反応媒体は、水、ハロゲン促進剤、及び触媒を含み;
フラッシャー内において、該反応生成物を分離して粗生成物流及び液体再循環流を生成させ;
軽質留分カラム内において、該粗生成物流を精製して精製した生成物流を生成させ;
第1の乾燥カラム内において、該精製した生成物流の第1の部分を乾燥し;そして
第2の乾燥カラム内において、該精製した生成物流の第2の部分を乾燥する;
工程を含む、酢酸を製造するカルボニル化方法であって、該第2の乾燥カラム内において該精製した生成物流の該第2の部分の乾燥を推進するのに必要なエネルギーの一部が、該反応から熱を取り出すことによって生成する水蒸気により与えられ、該第2の乾燥カラムが、該第1の乾燥カラムの底部温度よりも低い底部温度を有し、該第1の乾燥カラムの圧力よりも低い圧力を有する方法。 - 該水蒸気の少なくとも一部を該第2の乾燥カラムのリボイラーに送る、請求項1に記載の方法。
- 該第1の乾燥カラムからの1以上の蒸気流を該第2の乾燥カラムに送ることを更に含む、請求項1に記載の方法。
- 該第2の乾燥カラムの底部温度が、125℃〜175℃である、請求項1に記載の方法。
- 該第2の乾燥カラムの圧力が、1bar(絶対圧)〜5bar(絶対圧)である、請求項1に記載の方法。
- 該反応器を190℃〜225℃の上昇させた反応温度で運転する、請求項1に記載の方法。
- 反応媒体を含む反応器内において、一酸化炭素を少なくとも1種類の反応物質と反応させて酢酸を含む反応生成物を生成させ、ここで該少なくとも1種類の反応物質は、メタノール、酢酸メチル、ギ酸メチル、ジメチルエーテル、及びこれらの混合物からなる群から選択され、該反応媒体は、水、ハロゲン促進剤、及び触媒を含み;
フラッシャー内において、該反応生成物を分離して粗生成物流及び液体再循環流を生成させ;
1以上の蒸留カラム内において、該粗生成物流を蒸留して酢酸生成物流を生成させ、ここで該1以上の蒸留カラムは第1の乾燥カラム及び第2の乾燥カラムを含み;
熱伝達システム内において、該反応生成物を生成する反応の熱から水蒸気を生成させ;そして
該水蒸気の一部を該第2の乾燥カラムに送り、ここで、該水蒸気が該第2の乾燥カラム内での分離を推進するのに必要なエネルギーの一部を与える;
工程を含む、酢酸製造プロセスにおいて反応温度を制御する方法であって、該第2の乾燥カラムが、該第1の乾燥カラムの底部温度よりも低い底部温度を有し、該第1の乾燥カラムの圧力よりも低い圧力を有する方法。 - 該水蒸気の一部を該第2の乾燥カラムのリボイラーに送る、請求項7に記載の方法。
- 該水蒸気の一部を該第1の乾燥カラムのリボイラーに送る、請求項7に記載の方法。
- 該第2の乾燥カラムの底部温度が、125℃〜175℃である、請求項7に記載の方法。
- 該第2の乾燥カラムの圧力が、1bar(絶対圧)〜5bar(絶対圧)である、請求項7に記載の方法。
- 該反応器を190℃〜225℃の上昇させた反応温度で運転する、請求項7に記載の方法。
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US10618871B2 (en) * | 2016-08-17 | 2020-04-14 | Covestro Deutschland Ag | Process for producing isocyanate and at least one further chemical product in an integrated production |
CN111646890A (zh) * | 2019-09-10 | 2020-09-11 | 上海浦景化工技术股份有限公司 | 反应器与精馏塔热耦合的甲醇羰基化制醋酸的工艺方法 |
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US8637698B2 (en) | 2014-01-28 |
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CA2816898A1 (en) | 2012-05-24 |
CN107673963A (zh) | 2018-02-09 |
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