CN1856360A - 用于二甲醚合成的催化剂及其制备方法 - Google Patents
用于二甲醚合成的催化剂及其制备方法 Download PDFInfo
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- CN1856360A CN1856360A CNA2004800271864A CN200480027186A CN1856360A CN 1856360 A CN1856360 A CN 1856360A CN A2004800271864 A CNA2004800271864 A CN A2004800271864A CN 200480027186 A CN200480027186 A CN 200480027186A CN 1856360 A CN1856360 A CN 1856360A
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- dimethyl ether
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
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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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/7007—Zeolite Beta
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/09—Preparation of ethers by dehydration of compounds containing hydroxy groups
-
- 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/42—Addition of matrix or binder particles
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
分类 | 催化剂 | 产率(%) | ||
沸石 | 粘合剂(重量比) | 二甲醚 | 烃 | |
实施例1 | Na-H-ZSM-5 | 氧化铝(1) | 88.5 | 0.0 |
实施例2 | Na-H-ZSM-5 | 氧化铝(1) | 87.9 | 0.0 |
实施例3 | K-H-Beta | 氧化铝(1) | 75.3 | 0.0 |
实施例4 | Ca-H-丝光沸石 | 氧化铝(1) | 78.1 | 0.0 |
实施例5 | Na-Mg-H-ZSM-5 | 氧化铝(1.5) | 88.4 | 0.0 |
实施例6 | Na-H-ZSM-5 | 氧化铝(1) | 89.2 | 0.0 |
实施例7 | Na-H-ZSM-5 | 氧化铝(1) | 83.7 | 0.0 |
实施例8 | Na-H-ZSM-5 | 氧化铝(1) | 81.7 | 0.0 |
实施例9 | NH4-H-ZSM-5 | 氧化铝(1) | 88.2 | 0.0 |
实施例10 | Na-H-ZSM-5 | 二氧化硅(0.25) | 80.6 | 0.0 |
实施例11 | Na-H-ZSM-5 | 二氧化硅-氧化铝(0.25) | 82.1 | 0.0 |
实施例12 | Na-H-ZSM-5 | 二氧化硅-氧化铝(1.5) | 80.2 | 0.0 |
实施例13 | Na-H-ZSM-5 | 二氧化硅-氧化铝(0.25),CMC(0.02) | 82.5 | 0.0 |
对比实施例1 | H-ZSM-5 | 氧化铝(1) | 22.0 | 78.0 |
对比实施例2 | Na-H-ZSM-5 | 氧化铝(1) | 41.3 | 58.7 |
对比实施例3 | Na-ZSM-5 | 氧化铝(1) | 27.0 | 0.0 |
对比实施例4 | Na-H-ZSM-5 | - | 63.4 | 29.1 |
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20030065380 | 2003-09-20 | ||
KR1020030065380 | 2003-09-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1856360A true CN1856360A (zh) | 2006-11-01 |
CN100503041C CN100503041C (zh) | 2009-06-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB2004800271864A Active CN100503041C (zh) | 2003-09-20 | 2004-08-30 | 用于二甲醚合成的催化剂及其制备方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7417004B2 (zh) |
EP (1) | EP1663483A4 (zh) |
JP (1) | JP4814096B2 (zh) |
KR (1) | KR100599251B1 (zh) |
CN (1) | CN100503041C (zh) |
WO (1) | WO2005028104A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101570472B (zh) * | 2008-04-29 | 2012-02-15 | 中国石油化工股份有限公司 | 一种甲醇脱水生产二甲醚的方法 |
CN105688881A (zh) * | 2016-02-25 | 2016-06-22 | 洛阳市科创石化科技开发有限公司 | 一种合成烷撑二醇醚的催化剂及其制备方法和应用 |
CN111344058A (zh) * | 2017-11-02 | 2020-06-26 | 突比塔克 | 天然沸石催化剂的制备以及利用该催化剂从甲醇生产二甲醚的方法 |
Families Citing this family (27)
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KR100599251B1 (ko) | 2003-09-20 | 2006-07-13 | 에스케이 주식회사 | 디메틸에테르 합성용 촉매와 촉매의 제조방법 |
CN1895776B (zh) * | 2005-07-14 | 2012-07-25 | 中国科学院大连化学物理研究所 | 一种用于甲醇液相或混相脱水生产二甲醚的催化剂 |
CN100444927C (zh) * | 2005-12-12 | 2008-12-24 | 上海化工研究院 | 一种用于制冷系统的干燥过滤芯的制备方法 |
JP4905849B2 (ja) * | 2006-04-07 | 2012-03-28 | 東京電力株式会社 | マイクロ波を用いたジメチルエーテルの合成方法 |
KR101340777B1 (ko) * | 2006-08-31 | 2013-12-31 | 에스케이이노베이션 주식회사 | 디메틸에테르의 제조공정 |
US20110124489A1 (en) * | 2006-09-19 | 2011-05-26 | Denso Corporation | Carbon-based material combustion catalyst, manufacturing method of the same, catalyst carrier, and manufacturing method of the same |
JP5303130B2 (ja) * | 2006-09-19 | 2013-10-02 | 株式会社日本自動車部品総合研究所 | 炭素系物質燃焼触媒及びその製造方法、触媒担持体及びその製造方法 |
FR2909666B1 (fr) * | 2006-12-08 | 2009-03-06 | Centre Nat Rech Scient | Deshydratation du methanol en dimethyl ether employant des catalyseurs a base d'une zeolithe supportee sur du carbure de silicium |
JP5101414B2 (ja) * | 2007-07-10 | 2012-12-19 | 住友化学株式会社 | ジメチルエーテル製造用触媒 |
JP5512083B2 (ja) * | 2007-12-18 | 2014-06-04 | 日揮株式会社 | 反応器内部の反応速度制御方法、反応装置及びジメチルエーテルの製造方法。 |
KR100926800B1 (ko) | 2008-03-28 | 2009-11-12 | 한국화학연구원 | 메탄올의 탈수반응에 의한 디메틸에테르 합성용 촉매, 이의제조방법 및 디메틸에테르의 제조방법 |
CN102085468B (zh) * | 2009-12-04 | 2013-02-20 | 中国科学院大连化学物理研究所 | 一种流化床用预流化剂 |
DE102010026880A1 (de) | 2010-07-12 | 2012-01-12 | Süd-Chemie AG | Verfahren zur Herstellung von Katalysatoren auf Zeolithbasis zur Umsetzung von Oxygenaten zu niederen Olefinen |
JP2012120977A (ja) * | 2010-12-08 | 2012-06-28 | Mitsubishi Chemicals Corp | 珪質固体触媒の製造方法及び低級炭化水素の製造方法 |
KR101248122B1 (ko) * | 2011-05-20 | 2013-03-28 | 한국화학연구원 | 메탄올 탈수 반응용 촉매 및 이의 제조방법 |
US20130211147A1 (en) * | 2011-09-02 | 2013-08-15 | Michael Cheiky | Low pressure dimethyl ether synthesis catalyst |
CN102962012B (zh) * | 2012-11-21 | 2016-04-13 | 陕西煤化工技术工程中心有限公司 | 一种流化床用惰性剂及其制备与使用方法 |
ES2961911T3 (es) * | 2013-10-23 | 2024-03-14 | Basf Se | Moldeo para un material zeolítico hidrófobo y proceso para su producción |
AU2014368547B2 (en) * | 2013-12-20 | 2018-06-21 | Basf Se | Catalyst and process for the conversion of oxygenates to olefins |
CN104383946A (zh) * | 2014-10-20 | 2015-03-04 | 大连瑞克科技有限公司 | 一种甲醇气相脱水制二甲醚的催化剂及其制备方法 |
US10189763B2 (en) | 2016-07-01 | 2019-01-29 | Res Usa, Llc | Reduction of greenhouse gas emission |
WO2018004992A1 (en) | 2016-07-01 | 2018-01-04 | Res Usa, Llc | Conversion of methane to dimethyl ether |
US9938217B2 (en) | 2016-07-01 | 2018-04-10 | Res Usa, Llc | Fluidized bed membrane reactor |
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WO2021116254A1 (en) | 2019-12-11 | 2021-06-17 | Basf Se | Process for preparing a molding comprising a zeolite catalyst and method for converting oxygenates to olefins using the catalytic molding |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS577432A (en) | 1980-06-16 | 1982-01-14 | Nippon Gosei Arukoole Kk | Preparation of dialkyl ether |
BR8303437A (pt) | 1982-07-01 | 1984-02-07 | Du Pont | Processo para a preparacao de eter dimetilico pela desidratacao catalitica de metanol |
JPS5916845A (ja) | 1982-07-16 | 1984-01-28 | Mitsubishi Gas Chem Co Inc | ジメチルエ−テルの製造方法 |
DK149326C (da) * | 1984-01-10 | 1986-09-15 | Haldor Topsoe As | Fremgangsmaade til fremstilling af katalysatorer til anvendelse ved ethersyntese |
US4590176A (en) * | 1984-06-05 | 1986-05-20 | Shell Oil Company | Catalyst for dimethyl ether synthesis and a process for its preparation |
JPS6117528A (ja) * | 1985-01-07 | 1986-01-25 | Mitsubishi Gas Chem Co Inc | ジメチルエ−テルを製造する方法 |
US4752596A (en) | 1985-04-30 | 1988-06-21 | E. I. Du Pont De Nemours And Company | Modified 8-ring zeolites as catalysts |
US4735930A (en) * | 1986-02-18 | 1988-04-05 | Norton Company | Catalyst for the reduction of oxides of nitrogen |
US4777321A (en) * | 1987-04-29 | 1988-10-11 | Mobil Oil Corporation | Feedstock preparation and conversion of oxygenates to olefins |
US4709113A (en) * | 1987-04-29 | 1987-11-24 | Mobil Oil Corporation | Conversion of crude methanol to gasoline with extraction |
DE3808485A1 (de) | 1987-05-22 | 1989-09-28 | Energie Versorgungssyst Evs | Verfahren und vorrichtung zur bindung von halogenen an feststoffen bei der verbrennung von fossilen brennstoffen oder muell |
US4885405A (en) | 1987-12-10 | 1989-12-05 | Horst Dornhagen | Process for the production of pure dimethylether and a catalyst used in the process |
US5082984A (en) * | 1990-01-29 | 1992-01-21 | Mobil Oil Corp. | Dual function catalyst and isomerization therewith |
US5302567A (en) * | 1991-11-04 | 1994-04-12 | W. R. Grace & Co.-Conn. | Zeolite octane additive |
US5254596A (en) * | 1992-09-15 | 1993-10-19 | Eastman Kodak Company | Process for the manufacture of methanol and dimethyl ether |
CN100343214C (zh) * | 1996-04-19 | 2007-10-17 | 傑富意控股株式会社 | 二甲醚制造用催化剂及其制造方法以及二甲醚的制造方法 |
KR100228748B1 (ko) * | 1997-10-10 | 1999-11-01 | 김충섭 | 이산화탄소로부터 디메틸에테르와 메탄올의 동시 제조방법 |
KR100288611B1 (ko) | 1998-06-20 | 2001-07-12 | 박호군 | 개질된고체산촉매및이를이용한디메틸에테르의제조 |
IT1314190B1 (it) * | 1999-10-18 | 2002-12-06 | Eni Spa | Processo per preparare 2,6-dimetilnaftalene |
KR100454091B1 (ko) * | 2002-12-11 | 2004-10-26 | 한국화학연구원 | 미정제 메탄올로부터 디메틸에테르의 제조방법 |
KR100501922B1 (ko) * | 2003-02-19 | 2005-07-18 | 에스케이 주식회사 | 메탄올로부터 디메틸에테르의 제조방법 |
KR100599251B1 (ko) | 2003-09-20 | 2006-07-13 | 에스케이 주식회사 | 디메틸에테르 합성용 촉매와 촉매의 제조방법 |
-
2004
- 2004-08-24 KR KR1020040066855A patent/KR100599251B1/ko active IP Right Grant
- 2004-08-30 US US10/572,707 patent/US7417004B2/en not_active Expired - Fee Related
- 2004-08-30 WO PCT/KR2004/002174 patent/WO2005028104A1/en active Application Filing
- 2004-08-30 CN CNB2004800271864A patent/CN100503041C/zh active Active
- 2004-08-30 EP EP04774435A patent/EP1663483A4/en not_active Withdrawn
- 2004-08-30 JP JP2006526822A patent/JP4814096B2/ja active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101570472B (zh) * | 2008-04-29 | 2012-02-15 | 中国石油化工股份有限公司 | 一种甲醇脱水生产二甲醚的方法 |
CN105688881A (zh) * | 2016-02-25 | 2016-06-22 | 洛阳市科创石化科技开发有限公司 | 一种合成烷撑二醇醚的催化剂及其制备方法和应用 |
CN105688881B (zh) * | 2016-02-25 | 2018-07-31 | 洛阳市科创石化科技开发有限公司 | 一种合成烷撑二醇醚的催化剂及其制备方法和应用 |
CN111344058A (zh) * | 2017-11-02 | 2020-06-26 | 突比塔克 | 天然沸石催化剂的制备以及利用该催化剂从甲醇生产二甲醚的方法 |
CN111344058B (zh) * | 2017-11-02 | 2024-03-29 | 突比塔克 | 天然沸石催化剂的制备以及利用该催化剂从甲醇生产二甲醚的方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1663483A1 (en) | 2006-06-07 |
EP1663483A4 (en) | 2007-10-31 |
JP4814096B2 (ja) | 2011-11-09 |
US20070117709A1 (en) | 2007-05-24 |
US7417004B2 (en) | 2008-08-26 |
WO2005028104A1 (en) | 2005-03-31 |
CN100503041C (zh) | 2009-06-24 |
JP2007505734A (ja) | 2007-03-15 |
KR100599251B1 (ko) | 2006-07-13 |
KR20050029258A (ko) | 2005-03-24 |
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