CATALYST SYSTEM FOR DEWAXING
    91.
    发明申请

    公开(公告)号:US20210162383A1

    公开(公告)日:2021-06-03

    申请号:US17047987

    申请日:2019-04-05

    申请人: SHELL OIL COMPANY

    摘要: A catalyst system for dewaxing of a hydrocarbon feedstock comprising a mixture of a first dewaxing catalyst composition and a second dewaxing catalyst composition, wherein the first dewaxing catalyst composition is a ZSM-12 zeolite based catalyst composition and the second dewaxing catalyst composition is a EU-2 and/or ZSM-48 zeolite based catalyst composition, and wherein a concentration gradient of the mixture is achieved within a single catalyst bed, such that the concentration of the first dewaxing catalyst is decreasing and the concentration of the second dewaxing catalyst is increasing through the catalyst bed; and a process for dewaxing of a hydrocarbon feedstock comprising contacting the hydrocarbon feedstock with said catalyst system.

    FATIGUE-RESISTANT FLUIDIZED ELECTROCATALYSIS

    公开(公告)号:US20210032760A1

    公开(公告)日:2021-02-04

    申请号:US16964009

    申请日:2019-01-30

    摘要: Methods of catalyzing an electrochemical reaction are provided. In embodiments, such a method comprises applying an electrical potential across a fixed working electrode and a counter electrode, the fixed working electrode and the counter electrode in contact with an electrolyte solution comprising reactant species and fluidized electrocatalyst particles, the fluidized electrocatalyst particles undergoing free fluid motion within and throughout the electrolyte solution, wherein the electrical potential is applied to induce an electrochemical reaction between the reactant species and the fluidized electrocatalyst particles at transient interfaces formed between the reactant species, the fluidized electrocatalyst particles and the working electrode upon collisions of the fluidized electrocatalyst particles with the working electrode.

    PROCESSES AND CATALYSTS FOR REFORMING OF IMPURE METHANE-CONTAINING FEEDS

    公开(公告)号:US20200087576A1

    公开(公告)日:2020-03-19

    申请号:US16514677

    申请日:2019-07-17

    IPC分类号: C10G2/00 C01B3/40 B01J23/38

    摘要: Processes and catalysts for producing hydrogen by reforming methane are disclosed, which afford considerable flexibility in terms of the quality of the reformer feed. This can be attributed to the robustness of the noble metal-containing catalysts described herein for use in reforming, such that a number of components commonly present in methane-containing process streams can advantageously be maintained without conventional upgrading (pretreating) steps, thereby improving process economics. This also allows for the reforming of impure reformer feeds, even in relatively small quantities, which may be characterized as complex gas mixtures due to significant quantities of non-methane components. A representative reforming catalyst comprises 1 wt-% Pt and 1 wt-% Rh as noble metals, on a cerium oxide support.