-
公开(公告)号:US20220134321A1
公开(公告)日:2022-05-05
申请号:US17240258
申请日:2021-04-26
发明人: Dalyoung Yoon , Sung June Cho , Soon Hee Park
摘要: The present disclosure provides a method of preparing a SCR (Selective Catalytic Reduction) catalyst including preparing a synthetic mother liquid that includes a source of silica and alumina including zeolite A and silica, a structure-inducing material, a complexing material, and a solvent, reacting the synthetic mother liquid to prepare CHA zeolite, and ion-exchanging the prepared CHA zeolite with a transition metal.
-
公开(公告)号:US20220118436A1
公开(公告)日:2022-04-21
申请号:US17422848
申请日:2020-02-25
发明人: Jayen Barochia , Khalid Karim
摘要: The present disclosures and inventions relate to a catalyst and methods for making same, which are useful in Fischer-Tropsch reactions.
-
公开(公告)号:US20220097033A1
公开(公告)日:2022-03-31
申请号:US17309783
申请日:2019-12-18
申请人: BASF SE , The University of Tokyo
发明人: Hannah SCHREYER , Andrei-Nicolae Parvulescu , Ulrich MUELLER , Karsten SEIDEL , Tatsuya OKUBO , Toru WAKIHARA , Kenta IYOKI , Watcharop CHAIKITTISILP
摘要: The present disclosure relates to a process for the preparation of a zeolitic material having a CHA-type framework structure comprising YO2 and X2O3, wherein the process comprises: (1) providing a mixture comprising one or more sources for YO2, one or more sources for X2O3, one or more tetraalkylammonium cation R1R2R3R4N+-containing compounds, and one or more tetraalkylammonium cation R5R6R7R8N+-containing compounds as structure directing agent; (2) crystallizing the mixture to obtain a zeolitic material having a CHA-type framework structure; wherein Y is a tetravalent element and X is a trivalent element, wherein R1, R2, R3, R5, R6, and R7 independently from one another stand for alkyl, wherein R4 stands for CnH2nOH with n=1 to 6, and wherein R8 stands for cycloalkyl.
-
公开(公告)号:US11278874B2
公开(公告)日:2022-03-22
申请号:US16699044
申请日:2019-11-28
IPC分类号: B01J29/06 , B01J29/76 , B01D53/94 , B01J29/78 , B01J37/02 , B01J37/04 , B01J37/30 , B01D39/06 , B01J29/72 , B01J35/04 , B01J29/74 , B01J29/076 , B01J29/068 , B01J29/072 , B01J29/064
摘要: A process for the preparation of an extra-framework metal-containing aluminosilicate zeolite involves the steps of: (a) forming a reactant mixture A comprising (i) an aqueous slurry of an aluminosilicate zeolite in a H+-form, and (ii) a metal containing compound or free metal, wherein the mixture does not comprise ammonia, ammonium hydroxide or an ammonium salt, and (b) reacting the metal containing compound or free metal with the aluminosilicate zeolite in a H+-form in reactant mixture A and forming a product mixture B, a reaction mixture comprising the extra-framework metal-containing aluminosilicate zeolite. The metal comprises one or more of copper, iron, manganese, nickel and palladium. The step of reacting the metal with the aluminosilicate zeolite in a H+-form is performed in a single exchange. The extra-framework metal-containing aluminosilicate zeolite can then be used directly in forming a washcoat that can be applied to a support.
-
公开(公告)号:US11247196B2
公开(公告)日:2022-02-15
申请号:US16703405
申请日:2019-12-04
发明人: Donya Alsewdan , Lianhui Ding , Manal Al-Eid
IPC分类号: B01J29/40 , B01J29/44 , B01J35/10 , B01J37/00 , B01J37/02 , B01J37/03 , B01J37/04 , B01J37/06 , B01J37/08 , B01J37/30 , B01J29/064 , B01J37/10 , B01J29/06 , B01J29/42 , B01J29/068 , C01B39/36 , C01B39/02 , C01B39/40 , C01B39/04
摘要: A method of making a zeolite with encapsulated platinum is provided. The method includes dissolving an aluminum source in water to form a first solution, dissolving a hydroxide in water to form a second solution, dissolving a templating agent in water to form a third solution, and adding a silica source to the first solution to form a fourth solution. The method further includes adding the second solution to the fourth solution to form a fifth solution, adding the third solution to the fifth solution to form a sixth solution, and adding a platinum source to the sixth solution. The sixth solution is crystallized to form a solid product, which is recovered. The solid product is calcined. An ammonium ion exchange is performed on the solid product to form a second solid product, and the second solid product is calcined.
-
36.
公开(公告)号:US11213809B2
公开(公告)日:2022-01-04
申请号:US17147936
申请日:2021-01-13
发明人: Joel E. Schmidt , Mark E. Davis , Ben W. Boal , Jong Hun Kang , Dan Xie
IPC分类号: C01B39/02 , B01J29/70 , B01J29/04 , C01B39/06 , C01B39/08 , C01B39/48 , B01J35/00 , B01J37/08 , B01J37/10 , B01J37/30 , C01B39/46
摘要: The present disclosure is directed to novel germanosilicate compositions and methods of producing and using the same. In particular, this disclosure describes new germanosilicates of CIT-14 topology. The disclosure also describes methods of preparing and using these new germanosilicate compositions as well as the compositions themselves.
-
公开(公告)号:US11213808B2
公开(公告)日:2022-01-04
申请号:US17147889
申请日:2021-01-13
发明人: Joel E. Schmidt , Mark E. Davis , Ben W. Boal , Jong Hun Kang
IPC分类号: C01B39/48 , B01J29/70 , B01J29/04 , C01B39/06 , C01B39/08 , B01J35/00 , B01J37/08 , B01J37/10 , B01J37/30 , C01B39/02 , C01B39/46
摘要: The present disclosure is directed to novel germanosilicate compositions and methods of producing and using the same. Included among the new materials are the new germanosilicates of CIT-5 topology having Si:Ge ratios either in a range of from 3.8 to 5.4 or from 30 to 200, with and without added metal oxides. The disclosure also describes methods of preparing and using these new germanosilicate compositions as well as the compositions themselves.
-
公开(公告)号:US11207665B2
公开(公告)日:2021-12-28
申请号:US17147911
申请日:2021-01-13
发明人: Joel E. Schmidt , Mark E. Davis , Ben W. Boal , Jong Hun Kang
IPC分类号: C01B39/02 , B01J29/70 , B01J29/04 , C01B39/06 , C01B39/08 , C01B39/48 , B01J35/00 , B01J37/08 , B01J37/10 , B01J37/30 , C01B39/46
摘要: The present disclosure is directed to novel phyllosilicate compositions designated CIT-13P and methods of producing and using the same.
-
公开(公告)号:US11192096B2
公开(公告)日:2021-12-07
申请号:US16946794
申请日:2020-07-07
IPC分类号: C01B39/48 , B01J29/70 , B01J29/76 , B01D53/94 , B01J35/00 , B01J35/04 , B01J37/00 , B01J37/04 , B01J37/10 , B01J37/30 , F01N3/022 , F01N3/035 , F01N3/08 , F01N3/10 , F01N3/20
摘要: Provided are a novel form of AEI zeolite, a novel synthesis technique for producing pure phase AEI zeolite, a catalyst comprising the AEI zeolite in combination with a metal, and methods of using the same. The AEI aluminosilicate zeolite has a cuboid morphology and a silica-to-alumina ratio of 20 to 50.
-
40.
公开(公告)号:US20210362138A1
公开(公告)日:2021-11-25
申请号:US16882573
申请日:2020-05-25
发明人: Weibin Fan , Jianguo Wang , Mei Dong , Qiuming Zhou , Zhangfeng Qin , Junfen Li
摘要: The present invention provides a catalyst for aromatization of a long-carbon chain alkane and a preparation method thereof. In the present invention, a molecular sieve containing a BEA structure is taken as an active component and mixed with a carrier, and then the mixture is formed, dried and calcined to obtain the catalyst for aromatization of a long-carbon chain alkane. The active component is prepared by taking a Naβ molecular sieve as a raw material and modifying through the following steps of: first obtaining an Hβ molecular sieve through ammonium ion-exchange, and then conducting dealumination and silicon insertion treatment of the Hβ molecular sieve through first hydrothermal treatment; forming a mesoporous structure in a molecular sieve framework through second hydrothermal treatment; reducing the acidity of the catalyst by potassium ion exchange, and finally using metal modification to improve the capability of the catalyst for catalyzing the aromatization of the long-carbon chain alkane and enhancing the toluene selectivity. The catalyst provided by the present invention shows high stability in the aromatization of the long-chain alkane and has a service life up to 170 h or above and aromatic hydrocarbon selectivity up to 80%, and the selectivity to toluene in aromatic hydrocarbon products can reach 85.5%.
-
-
-
-
-
-
-
-
-