公开(公告)号：US20250001404A1

公开(公告)日：2025-01-02

申请号：US18251641

申请日：2021-08-26

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Sina Sartipi ,  Marc H. Anthonis ,  Scott J. Weigel ,  Allen W. Burton

IPC: B01J29/70 ,  B01J37/04 ,  B01J37/08 ,  C01B39/02

Abstract: Disclosed is a method of synthesizing aluminum-rich molecular sieve of *MRE framework type, comprising the steps of preparing a synthesis mixture comprising at least one source of silica, at least one source of alumina having a low water solubility, at least one source of hydroxide ions, at least one source of alkali and/or alkaline earth metal M, at least one source of diquaternary alkylammonium structure directing agent R, water and optional seed crystals.

公开(公告)号：US11542446B2

公开(公告)日：2023-01-03

申请号：US16540107

申请日：2019-08-14

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Preeti Kamakoti ,  Scott J. Weigel ,  Stephen J. McCarthy ,  Shifang L. Luo ,  Sina Sartipi ,  Martine Dictus ,  Marc H. Anthonis ,  Helge Jaensch

IPC: C10G65/00 ,  C10G65/04 ,  B01J29/85 ,  C10G47/18

Abstract: Methods are provided for using a molecular sieve catalyst for dewaxing formed using a synthesis mixture comprising a morphology modifier. The catalyst may be used, for example, for production of a lubricant base stock. For example, ZSM-48 crystals formed using the morphology modifier (and/or formulated catalysts made using such crystals) can have an increased activity and/or can provide an improved yield during catalytic dewaxing of lubricant base stocks.