JP4523947B2 - 金属触媒を用いたジメチルナフタレンの製造方法 - Google Patents
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- 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
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- C07C2523/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
- C07C2523/56—Platinum group metals
- C07C2523/62—Platinum group metals with gallium, indium, thallium, germanium, tin or lead
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Description
特許文献1では、アルミナ担持体に脱水素反応用で白金とスズを所定重量%担持して製造した触媒を炭化水素の脱水素触媒として用い、特許文献2では、反応を効率的に増加させるためにハロゲン物質をさらに含めて反応活性と選択度の改善を提案した。
触媒は脱水素反応速度を増加させて熱力学的な平衡到達率を増大させ、構造的な異性体の発生を抑制しなければならない。また、反応で生じ得る炭化水素の熱分解を抑制する機能を有していなければならず、工業的条件で持続的に活性の安定性を示さなければならない。安定性は使用期間の経過に伴う活性、選択度の変化率および特定時間経過後に再び元の状態に再生して用いた時の活性変化率であって、変化率が少ないほどさらに安定した触媒であり、連続使用期間、すなわち触媒の経済的寿命の増大効果を有する。
製造されたアルミナは、主にγ、θまたはα型結晶構造を有する物質で、表面積が5〜250m2/gで、特に25〜150m2/gが好ましい。
活性成分が固着された担持体を乾燥空気対比水蒸気の混合比0〜50、気体空間速度100〜3000hr-1および300〜700℃で1〜48時間程度最終焼成する。
パイロット(Pilot)の反応器で反応後に気体クロマトグラフィで分析を実施した。
本発明によって得られる長所を表すために、特許文献5により比較用触媒を製造した。担持体としてはアルミナを用い、弱酸と共に公知の含浸方法によって、白金(Pt)0.60重量%に担持し、アルカリ金属塩水溶液で塩素(Cl2)0.79重量%、アルカリ金属はナトリウム(Na)を1.0重量%で担持した。過量のアルカリ金属塩水溶液で残余ハロゲン化合物を除去して焼成乾燥して製造した。この触媒をAとする。
触媒はスズを含有した複合触媒を用いたが、先ずスズ塩化物(SnCl2)12.0gを水398mlに所定量溶かした後、塩酸8.5mlを添加してスズ塩化物を完全に溶かした。この溶液にアルミナを4時間担持した。スズ成分を担持したアルミナを乾燥気体空間速度(GHSV)100hr-1、150℃の条件で2時間以上乾燥して、GHSV 1000hr-1、680℃で3時間の焼成過程を経て製造した。スズ含有担持体を塩化白金酸水溶液(白金濃度0.0055g Pt/ml)357mlに投入して、白金成分を担持した。以後、150℃、乾燥空気で2時間乾燥させ、600℃で2時間焼成させた後、硝酸カリウム9.05gを溶かした水溶液742mlと塩酸2%を混ぜた混合溶液を含浸させた。その後、150℃、乾燥空気で2時間乾燥させて600℃で2時間焼成させた。亜鉛は担持体物質を製造する間他の組成物と同時に添加した後担持させる。亜鉛成分の含有物質としては硝酸塩形態を用いる。製造された触媒をCとする。触媒粒子全体を介してすべての成分が均一に担持され、最終触媒に対して元素重量で白金0.5重量%、スズ2.0重量%、カリウム1.0重量%、亜鉛0.1重量%、および塩素0.7重量%を含有した。
本実施例および比較例では実施例1の触媒Cと比較例1の触媒Aの脱水素性能を、実験室反応器を用いて比較した。
実施例1の触媒Cを用いて反応温度450℃、WHSV 20hr-1で反応圧力を10〜30kgf/cm2にしてジメチルテトラリン異性体を脱水素化させて生成されたジメチルナフタレン異性体の組成、選択度、および転換率を求め、以下の表2に示す。
実施例1の触媒Cを反応温度300℃、WHSV 20hr-1で反応圧力を10〜30Kg/cm2にして、ジメチルテトラリン異性体を脱水素化させて生成されたジメチルナフタレン異性体の組成、選択度、および転換率を求め、表3に示す。
比較例1の触媒Bと実施例1の触媒Cを圧力15kgf/cm2、WHSV 20hr-1、液相反応条件で反応温度を350℃〜450℃にしてジメチルテトラリン異性体を脱水素化させて生成されたジメチルナフタレン異性体の組成、選択度、および転換率を求め、表4に示す。
Claims (5)
- ジメチルテトラリン異性体を脱水素化反応用金属触媒を用いて脱水素反応させ、ジメチルナフタレンを製造する方法であって、
前記金属触媒の担持体は、アルミナ(Al2O3)、シリカ(SiO2)、シリカ−アルミナ混合物またはゼオライトであり、
活性成分として白金(Pt)が最終触媒の元素重量で0.05〜2.5重量%、スズ(Sn)またはインジウム(In)が最終触媒の元素重量で0.1〜3.0重量%、カリウム(K)、マグネシウム(Mg)、およびセシウム(Cs)からなる群から選択された少なくとも1種が最終触媒の元素重量で0.5〜15.0重量%、および塩素が最終触媒の元素重量で0.3〜3.0重量%、および亜鉛(Zn)またはガリウム(Ga)が最終触媒の元素重量で0.01〜3.0重量%含まれていることを特徴とするジメチルナフタレンの製造方法。 - 前記金属触媒には硫黄が最終触媒の元素重量で0〜4.0重量%さらに含まれていることを特徴とする請求項1に記載のジメチルナフタレンの製造方法。
- 前記脱水素化反応時の圧力は、10〜30kgf/cm2であることを特徴とする請求項1に記載のジメチルナフタレンの製造方法。
- 前記脱水素化反応時の重量空間速度は、2〜30hr−1であることを特徴とする請求項1に記載のジメチルナフタレンの製造方法。
- 前記脱水素化反応時の温度は、300〜450℃であることを特徴とする請求項1に記載のジメチルナフタレンの製造方法。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060079155A KR100761512B1 (ko) | 2006-08-22 | 2006-08-22 | 금속 촉매를 이용한 디메틸나프탈렌의 탈수소화 공정 |
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| JP2008050338A JP2008050338A (ja) | 2008-03-06 |
| JP4523947B2 true JP4523947B2 (ja) | 2010-08-11 |
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| Country | Link |
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| US (1) | US7718835B2 (ja) |
| EP (1) | EP1897863B1 (ja) |
| JP (1) | JP4523947B2 (ja) |
| KR (1) | KR100761512B1 (ja) |
| CN (1) | CN101130468B (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100973242B1 (ko) * | 2008-07-31 | 2010-07-30 | 주식회사 효성 | 탈수소화 촉매의 재생방법 |
| KR101218453B1 (ko) * | 2008-12-30 | 2013-01-04 | 주식회사 효성 | 탈수소화 촉매 |
| KR100983740B1 (ko) | 2008-12-30 | 2010-09-24 | 주식회사 효성 | 산화 탈수소 촉매, 및 이를 이용한 프로판으로부터 프로필렌의 제조방법 |
| KR101133363B1 (ko) | 2009-12-30 | 2012-04-06 | 주식회사 효성 | 산화 탈수소 에어로젤 촉매, 및 이를 이용한 프로판으로부터 프로필렌의 제조방법 |
| EP2608882A4 (de) * | 2010-08-26 | 2014-11-12 | Basf Se | Hochaktive konvertierungskatalysatoren |
| CN106238045A (zh) * | 2010-12-17 | 2016-12-21 | 埃克森美孚化学专利公司 | 脱氢催化剂和方法 |
| WO2012134552A1 (en) | 2011-03-28 | 2012-10-04 | Exxonmobil Chemical Patents Inc. | Dehydrogenation process |
| EP2689843A1 (en) * | 2012-07-26 | 2014-01-29 | Saudi Basic Industries Corporation | Alkane dehydrogenation catalyst and process for its preparation |
| BR112016013610B1 (pt) * | 2013-12-20 | 2021-01-26 | Dow Global Technologies Llc | método para reduzir enxofre presente como enxofre ou compostos de enxofre em um fluxo de alimentação de hidrocarboneto |
| CN105268471B (zh) * | 2014-07-03 | 2017-11-21 | 中国石油化工股份有限公司 | 萘烷基化催化剂的制备方法 |
| KR101981886B1 (ko) * | 2018-02-01 | 2019-05-23 | 효성화학 주식회사 | 탈수소화 촉매 |
| EP4140579A4 (en) * | 2020-04-23 | 2024-02-28 | Chiyoda Corporation | UNIFORM PLATINUM-SUPPORTED ALUMINUM OXIDE CATALYST, METHOD FOR PRODUCING THEREOF AND METHOD FOR USE THEREOF |
| CN115504850B (zh) | 2021-06-07 | 2025-05-23 | 河北中化滏恒股份有限公司 | 1,4-二甲基萘的制造方法 |
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| GB435254A (en) | 1934-02-08 | 1935-09-09 | Ig Farbenindustrie Ag | Improvements in the production or recovery of polynuclear carbon compounds from bituminous substances |
| GB472538A (en) * | 1936-02-18 | 1937-09-20 | Ig Farbenindustrie Ag | Improvements in the manufacture and production of aromatic hydrocarbon compounds of low boiling point |
| US3531543A (en) * | 1968-05-28 | 1970-09-29 | Chevron Res | Group viii noble metal,tin and solid inorganic refractory metal oxide catalyst composites and their use in hydrocarbon dehydrogenations |
| US4506032A (en) * | 1983-03-22 | 1985-03-19 | Uop Inc. | Dehydrogenation catalyst composition |
| US5401892A (en) * | 1988-06-24 | 1995-03-28 | Amoco Corporation | Preparation of a dimethyltetralin by cyclizing an orthotolylpentene phenylhexene using an ultra-stable crystalline aluminosilicate molecular sieve y-zeolite |
| US5012024A (en) | 1988-06-24 | 1991-04-30 | Amoco Corporation | Preparation of a dimethylnaphthalene |
| US5118892A (en) * | 1988-06-24 | 1992-06-02 | Amoco Corporation | Preparation of a dimethylnaphthalene |
| US5073670A (en) * | 1988-06-24 | 1991-12-17 | Amoco Corporation | Preparation of a dimethyltetralin |
| US5189234A (en) * | 1991-10-31 | 1993-02-23 | Amoco Corporation | Selective dehydrogenation processes and catalysts |
| JP3013867B2 (ja) * | 1992-08-31 | 2000-02-28 | 三菱瓦斯化学株式会社 | ジメチルナフタレンの製造方法 |
| KR100223492B1 (ko) | 1994-12-30 | 1999-10-15 | 전원중 | 탈수소화 반응용 복합 금속 촉매 |
| CA2166522C (en) | 1996-01-03 | 2007-03-20 | Maureen L. Bricker | Preparing a catalyst containing a group viii metal and a non-acidic promoter dispersed on a support via simultaneous impregnation |
| JPH10182505A (ja) * | 1996-12-24 | 1998-07-07 | Chiyoda Corp | 脱水素方法 |
| FI982630A7 (fi) * | 1998-12-04 | 2000-06-05 | Optatech Oy | Menetelmä 2,6-dimetyylinaftaleenin valmistamiseksi |
| ITMI991533A1 (it) * | 1999-07-13 | 2001-01-13 | Enichem Spa | Processo per produrre 2,6-dimetilnaftalene da streams petrolchimici |
| KR100345344B1 (ko) | 1999-10-19 | 2002-07-26 | 에쓰대시오일 주식회사 | 5-오르토-톨릴펜텐으로부터 2,6-디메틸나프탈렌을 제조하는 방법 |
| JP2001278821A (ja) | 2000-03-30 | 2001-10-10 | Nippon Zeon Co Ltd | ジメチルナフタレン類の製造方法 |
| KR100515715B1 (ko) | 2003-12-05 | 2005-09-15 | 주식회사 효성 | 고리구조를 가진 탄화수소의 탈수소화 공정 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101130468A (zh) | 2008-02-27 |
| KR100761512B1 (ko) | 2007-10-04 |
| US20080051618A1 (en) | 2008-02-28 |
| EP1897863A1 (en) | 2008-03-12 |
| EP1897863B1 (en) | 2013-09-18 |
| JP2008050338A (ja) | 2008-03-06 |
| CN101130468B (zh) | 2011-04-27 |
| US7718835B2 (en) | 2010-05-18 |
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