JP7090470B2 - p-キシレンの製造方法 - Google Patents
p-キシレンの製造方法 Download PDFInfo
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- JP7090470B2 JP7090470B2 JP2018094054A JP2018094054A JP7090470B2 JP 7090470 B2 JP7090470 B2 JP 7090470B2 JP 2018094054 A JP2018094054 A JP 2018094054A JP 2018094054 A JP2018094054 A JP 2018094054A JP 7090470 B2 JP7090470 B2 JP 7090470B2
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/373—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation
- C07C5/393—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation with cyclisation to an aromatic six-membered ring, e.g. dehydrogenation of n-hexane to benzene
- C07C5/41—Catalytic processes
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
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- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/26—Chromium
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
- B01J27/25—Nitrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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- B01J37/0201—Impregnation
- B01J37/0203—Impregnation the impregnation liquid containing organic compounds
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Description
分離工程は、石油由来のC4留分を原料として用い、イソブテンを含む第一の原料を得る工程である。
二量化工程は、イソブテンを原料成分として用い、当該イソブテンを含有する第一の原料を、第9族金属元素及び第10族金属元素からなる群より選択される少なくとも一種を含む二量化触媒に接触させることで、2,5-ジメチルヘキセンを含むC8成分を得る工程である。第一の原料は、ガス状で二量化反応に供されてよい。第9族金属元素とは、IUPAC(国際純正応用化学連合)の規定に基づく長周期型の元素の周期表における周期表第9族に属する金属元素を意味し、第10族金属元素とは、IUPAC(国際純正応用化学連合)の規定に基づく長周期型の元素の周期表における周期表第10族に属する金属元素を意味する。
環化工程では、C8成分を含む第二の原料を脱水素触媒に接触させて、C8成分の環化脱水素反応の生成物であるp-キシレンを得る。第二の原料は、ガス状で環化脱水素反応に供されてよい。
・装置:日立ハイテクサイエンス製 SPS-3000型
・高周波出力:1.2kw
・プラズマガス流量:18L/min
・補助ガス流量:0.4L/min
・ネブライザーガス流量:0.4L/min
本態様の脱水素触媒は、細孔径が6nm以上18nm以下の細孔(a)を有する。脱水素触媒は、細孔径が3nm以下の細孔(以下、「細孔(b)」という。)を有していてもよく、細孔径が3nm超6nm未満の細孔(以下、「細孔(c)」という。)を有していてもよく、細孔径が18nmを超える細孔(「以下、細孔(d)」という。)を有していてもよい。
択される少なくとも一種と、を含む担体であってもよい。Alと第2族金属との複合酸化物は、例えば、MgAl2O4であってよい。
・装置:株式会社大倉理研製金属分散度測定装置R-6011
・ガス流速:30mL/分(ヘリウム、水素)
・試料量:約0.1g(小数点以下4桁目まで精秤した)
・前処理:水素気流下で400℃まで1時間かけて昇温し、400℃で60分間還元処理を行う。その後、ガスを水素からヘリウムに切り替えて400℃で30分間パージした後、ヘリウム気流下で室温まで冷却する。室温で検出器が安定するまで待った後、COパルスを行う。
・測定条件:常圧ヘリウムガス流通下、室温(27℃)で一酸化炭素を0.0929cm3ずつパルス注入し、吸着量を測定する。吸着回数は、吸着が飽和するまで行う(最低3回、最大15回)。測定された吸着量から、分散度を求める。
・装置:日立ハイテクサイエンス製 SPS-3000型
・高周波出力:1.2kw
・プラズマガス流量:18L/min
・補助ガス流量:0.4L/min
・ネブライザーガス流量:0.4L/min
<触媒Aの調製>
市販のγ-アルミナ担体(日揮触媒化成株式会社製)10.0gに対し、硝酸クロム水溶液(和光純薬製、[Cr(NO3)2]6H3O)を用いて、Cr担持量が担体100質量部に対して5.0質量部になるよう含浸担持し、110℃で一晩乾燥させ、600℃で4時間焼成を行い、触媒Aを得た。
中東系原油を流動接触分解装置にて処理して得られたC4留分を反応蒸留装置にて分留し、塔頂からイソブタン及びイソブテン、塔底からノルマルブタン及びノルマルブテンをそれぞれ得た。塔頂ガス中のイソブタンは76質量%、イソブテンは24質量%であった。この塔頂ガスを、固定床流通式反応装置を用い、200℃、1.0MPa、塔頂ガス流速3.3ml/分、窒素流速16.6ml/分の条件で二量化反応を行い、第一の生成物を得た。触媒はNi5256(Engelhard社製)を1.0g用いた。
<p-キシレンの製造>
中東系原油を流動接触分解装置にて処理して得られたC4留分を反応蒸留装置にて分留し、塔頂からイソブタン及びイソブテン、塔底からノルマルブタン及びノルマルブテンをそれぞれ得た。塔頂ガス中のイソブタンは76質量%、イソブテンは24質量%であった。この塔頂ガスを、固定床流通式反応装置を用い、強酸性のイオン交換樹脂であるアンバーリスト35にて120℃、常圧、WHSV=50h-1の条件にて処理し、イソブタン76質量%、2,4,4-トリメチルペンテン23質量%、その他1質量%の生成物(第一の生成物)を得た。
Claims (3)
- イソブテン及びイソブタンを含む第一の原料を、第9族金属元素及び第10族金属元素からなる群より選択される少なくとも一種を含む二量化触媒に接触させて、2,5-ジメチルヘキセンを含むC8成分を生成させる二量化工程と、
前記C8成分を含む第二の原料を脱水素触媒に接触させ、前記C8成分の環化脱水素反応によりp-キシレンを生成させる環化工程と、
を備え、
前記第一の原料におけるイソブテン及びイソブタンの含有量が、80質量%以上であり、
前記二量化触媒が、Niを含む固体触媒である、p-キシレンの製造方法。 - 前記二量化触媒のアンモニアTPD法による全酸量が、1.0mmol/g以下である、請求項1に記載のp-キシレンの製造方法。
- 石油由来のC4留分から、反応蒸留により、前記第一の原料を得る分離工程を更に備える、請求項1又は2に記載の製造方法。
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US17/054,305 US20210238110A1 (en) | 2018-05-15 | 2019-05-13 | p-XYLENE PRODUCTION METHOD |
KR1020207034386A KR20210010480A (ko) | 2018-05-15 | 2019-05-13 | p-크실렌의 제조 방법 |
TW108116718A TW202003424A (zh) | 2018-05-15 | 2019-05-15 | 對二甲苯之製造方法 |
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JP2013010717A (ja) | 2011-06-29 | 2013-01-17 | Idemitsu Kosan Co Ltd | 混合c4留分を原料とするジイソブチレンの製造方法 |
JP2013506717A (ja) | 2009-10-06 | 2013-02-28 | ジーヴォ,インコーポレイテッド | 再生可能なイソブタノールをp−キシレンに選択的に変換するための総合プロセス |
JP2015504433A (ja) | 2011-11-21 | 2015-02-12 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | ブテンのオリゴマーの製造方法 |
JP2016519097A (ja) | 2013-03-28 | 2016-06-30 | ユーオーピー エルエルシー | ブタジエンの製造を増加させるための統合方法 |
CN106256814A (zh) | 2015-06-19 | 2016-12-28 | 中国石油化工股份有限公司 | 增产二甲苯的方法 |
WO2017104758A1 (ja) | 2015-12-17 | 2017-06-22 | Jxエネルギー株式会社 | ブテンポリマーの製造方法 |
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FR2463802A1 (fr) * | 1979-08-21 | 1981-02-27 | Inst Francais Du Petrole | Procede de valorisation des coupes c4 olefiniques |
JP2011079815A (ja) | 2009-09-09 | 2011-04-21 | Mitsubishi Chemicals Corp | p−キシレンの製造方法 |
JP6803729B2 (ja) * | 2016-11-16 | 2020-12-23 | Eneos株式会社 | p−キシレンの製造方法 |
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JP2013506717A (ja) | 2009-10-06 | 2013-02-28 | ジーヴォ,インコーポレイテッド | 再生可能なイソブタノールをp−キシレンに選択的に変換するための総合プロセス |
JP2013010717A (ja) | 2011-06-29 | 2013-01-17 | Idemitsu Kosan Co Ltd | 混合c4留分を原料とするジイソブチレンの製造方法 |
JP2015504433A (ja) | 2011-11-21 | 2015-02-12 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | ブテンのオリゴマーの製造方法 |
JP2016519097A (ja) | 2013-03-28 | 2016-06-30 | ユーオーピー エルエルシー | ブタジエンの製造を増加させるための統合方法 |
CN106256814A (zh) | 2015-06-19 | 2016-12-28 | 中国石油化工股份有限公司 | 增产二甲苯的方法 |
WO2017104758A1 (ja) | 2015-12-17 | 2017-06-22 | Jxエネルギー株式会社 | ブテンポリマーの製造方法 |
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