公开(公告)号：US09821299B2

公开(公告)日：2017-11-21

申请号：US13652631

申请日：2012-10-16

Applicant: ExxonMobil Research and Engineering Company

Inventor： Wenyih Frank Lai ,  Merci A. Hamilton ,  Stephen J. McCarthy

IPC: B01J29/40 ,  C07C1/24 ,  B01J29/83 ,  C01B39/54 ,  C07C1/22 ,  B01J37/04 ,  B01J37/06 ,  B01J37/28 ,  B01J21/04 ,  B01J29/00 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  C10G3/00 ,  C07C2/86 ,  C07C41/09 ,  C07C1/20 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: B01J29/40 ,  B01J21/04 ,  B01J29/00 ,  B01J29/83 ,  B01J35/002 ,  B01J35/0026 ,  B01J35/1004 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1061 ,  B01J35/1085 ,  B01J37/0009 ,  B01J37/0201 ,  B01J37/04 ,  B01J37/06 ,  B01J37/28 ,  B01J2229/186 ,  B01J2229/36 ,  B01J2229/37 ,  B01J2229/42 ,  B82Y30/00 ,  B82Y40/00 ,  C01B39/54 ,  C07C1/20 ,  C07C1/22 ,  C07C1/24 ,  C07C2/864 ,  C07C41/09 ,  C10G3/49 ,  C10G2400/02 ,  C10G2400/04 ,  Y02P20/125 ,  Y02P30/20 ,  C07C43/043

Abstract: In a process for producing a phosphorus-modified zeolite catalyst, an aqueous reaction mixture comprising a source of silica and a source of an organic directing agent effective to direct the synthesis of a desired zeolite is heated at a temperature and for a time sufficient to produce crystals of the desired zeolite. Wet zeolite crystals can then be separated from the reaction mixture and, without removing all the water from the wet zeolite crystals, the zeolite can be converted into the ammonium form by ion exchange, and the crystals can be treated with a phosphorus compound. The phosphorus-treated, ammonium-exchanged zeolite can then be formed into a catalyst to be heated in one or more stages to remove the water and organic directing agent from the zeolite crystals and to convert the zeolite to the hydrogen form.

公开(公告)号：US08900547B2

公开(公告)日：2014-12-02

申请号：US13685794

申请日：2012-11-27

Applicant: ExxonMobil Research and Engineering Company

Inventor： Wenyih Frank Lai ,  Merci A. Hamilton

IPC: C01B39/38 ,  B01J29/40 ,  B01J35/02 ,  C07C6/12

CPC classification number: B01J29/40 ,  B01J35/023 ,  B01J2229/123 ,  B01J2229/32 ,  C01B39/38 ,  C07C6/123 ,  C07C2529/40 ,  Y02P20/52 ,  C07C15/08

Abstract: In a process for preparing a high activity, large crystal ZSM-5 type zeolite in the absence of a template, a reaction mixture can be prepared comprising water, a silica source having a surface area less than 150 m2/g, an alumina source, seeds, a source of an oxide of an alkali metal, M, and a source of gluconic acid or salt thereof, Q, wherein the mixture has a SiO2/Al2O3 molar ratio≦40. The reaction mixture can be heated to a crystallization temperature from about 100° C. to 200° C. for a time sufficient for crystals of ZSM-5 to form Crystals of ZSM-5 can then be recovered from the reaction mixture which crystals can have a SiO2/Al2O3 molar ratio≦40 and a majority of which crystals can have at least one crystalline dimension of at least about 2 μm.

Abstract translation: 在不存在模板的情况下制备高活性大晶体ZSM-5型沸石的方法中，可以制备反应混合物，其包含水，表面积小于150m 2 / g的二氧化硅源，氧化铝源， 种子，碱金属的氧化物源，M和葡萄糖酸或其盐的Q，其中混合物具有SiO 2 / Al 2 O 3摩尔比＆lt; 40。 可以将反应混合物加热至约100℃至200℃的结晶温度，足以使ZSM-5晶体形成足够的时间，然后可从晶体可以从反应混合物中回收ZSM-5的晶体 SiO 2 / Al 2 O 3摩尔比＆nlE; 40，其中大部分晶体可以具有至少一个至少约2μm的结晶尺寸。