公开(公告)号：US20240174523A1

公开(公告)日：2024-05-30

申请号：US18551419

申请日：2022-03-22

Applicant: BASF Corporation

Inventor： Xiaoduo Qi ,  Lihua Shi ,  Vivek Vattipalli ,  Yu Dai ,  Mingming Wei ,  Haitao Liu ,  Jin Li

IPC: C01B39/46 ,  B01D53/94 ,  B01J29/072

CPC classification number: C01B39/46 ,  B01D53/9418 ,  B01J29/072 ,  B01D2255/20738 ,  B01D2255/50 ,  B01D2255/9207 ,  B01D2257/40 ,  B01D2258/01 ,  C01P2002/60

Abstract: The present invention relates to a process for preparing an aluminosilicate zeolite having AFT framework structure, which includes (1) providing a synthesis mixture comprising (A) a source for Al2O3, (B) a source for SiO2, (C1) a source for first organic structure directing agent comprising a N, N, N, N′, N′, N′-hexaethyl alkylenediammonium cation, and optionally a source for second organic structure directing agent comprising a cation selected from (C2-i) quaternary ammonium cations of formula (I), (C2-ii) piperidinium cations of formula (II), and (C2-iii) pyrrolidinium cations of formula (III), and (2) subjecting the synthesis mixture to crystallization conditions to form an AFT zeolite, wherein the formula (I), (II) and (III) are as defined in the description and claims. The present invention also relates to an SCR catalyst composition comprising an aluminosilicate zeolite having AFT framework structure and a promoter metal, and use of the aluminosilicate zeolite for selective catalytic reduction of nitrogen oxides.

公开(公告)号：US20240207830A1

公开(公告)日：2024-06-27

申请号：US18551450

申请日：2022-03-22

Applicant: BASF Corporation

Inventor： Xiaoduo Qi ,  Vivek Vattipalli ,  Lihua Shi ,  Yu Dai ,  Mingming Wei ,  Haitao Liu ,  Jin Li

IPC: B01J29/76 ,  B01D53/94 ,  B01J35/57 ,  B01J37/00 ,  B01J37/03 ,  C01B39/48 ,  F01N3/20

CPC classification number: B01J29/76 ,  B01D53/9418 ,  B01J35/57 ,  B01J37/0018 ,  B01J37/03 ,  C01B39/48 ,  F01N3/2066 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2257/404 ,  B01D2258/01 ,  C01P2002/72 ,  C01P2004/03

Abstract: A SCR catalyst composition comprises an aluminosilicate zeolite having AFT framework structure and a promoter metal. Meanwhile, providing a process for preparing the aluminosilicate zeolite having AFT framework, and use of the zeolite for selective catalytic reduction of nitrogen oxides.

公开(公告)号：US11660586B2

公开(公告)日：2023-05-30

申请号：US17309015

申请日：2019-10-30

Applicant: BASF Corporation

Inventor： Matthias Peter ,  Karifala Dumbuya ,  Miriam Schubert ,  Ahmad Moini ,  Yu Dai ,  Stefan Maurer ,  Haiyang Zhu ,  Yi Liu ,  Wen-Mei Xue ,  Ming-Ming Wei ,  Maria Heenemann

IPC: B01J29/76 ,  B01D53/94 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08

CPC classification number: B01J29/763 ,  B01D53/9418 ,  B01J37/0215 ,  B01J37/04 ,  B01J37/082 ,  B01D2255/2065 ,  B01D2255/2092 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20761 ,  B01D2255/30 ,  B01D2255/50

Abstract: A process for preparing a catalyst comprising a zeolitic material comprising copper, the process comprising (i) preparing an aqueous mixture comprising water, a zeolitic material comprising copper, a source of copper other than the zeolitic material comprising copper, and a non-zeolitic oxidic material selected from the group consisting of alumina, silica, titania, zirconia, ceria, a mixed oxide comprising one or more of Al, Si, Ti, Zr, and Ce and a mixture of two or more thereof; (ii) disposing the mixture obtained in (i) on the surface of the internal walls of a substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the substrate extending therethrough; and optionally drying the substrate comprising the mixture disposed thereon; (iii) calcining the substrate obtained in (ii).

公开(公告)号：US11511228B2

公开(公告)日：2022-11-29

申请号：US17309151

申请日：2019-10-24

Applicant: BASF Corporation

Inventor： Stefan Maurer ,  Jia Di Zhang ,  Yu Dai ,  Yu Fen Hao ,  Ming Ming Wei ,  Teng Shen

IPC: B01D53/94 ,  B01J23/40 ,  B01J29/76 ,  B01J35/00 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  F01N3/10 ,  F01N3/20 ,  F01N3/28

Abstract: The present invention relates generally to the field of exhaust treatment systems for purifying exhaust gas discharged from a lean burn engine. The exhaust treatment system comprises a Diesel Oxidation Catalyst (DOC), a Catalyzed Soot Filter (CSF), a reductant injector, an AEI zeolite based Selective Catalyzed Reduction (SCR) catalyst and an Ammonia Oxidation Catalyst (AMOX) downstream to the AEI zeolite based SCR catalyst.