Bi-modal radial flow reactor
    1.
    发明授权

    公开(公告)号:US11633707B2

    公开(公告)日:2023-04-25

    申请号:US17568957

    申请日:2022-01-05

    摘要: A bi-modal radial flow reactor comprising a cylindrical outer housing surrounding at least five cylindrical, concentric zones, including at least three annulus vapor zones and at least two catalyst zones. The at least two catalyst zones comprise an outer catalyst zone and an inner catalyst zone. The at least three annulus vapor zones comprise an outer annulus vapor zone, a middle annulus vapor zone, and a central annulus vapor zone, wherein the central annulus vapor zone extends along a centerline of the bi-modal radial flow reactor. The outer catalyst zone is intercalated with the outer annulus vapor zone and the middle annulus vapor zone, and the inner catalyst zone is intercalated with the middle annulus vapor zone and the central annulus vapor zone. A removable head cover can be fixably coupled to a top of the cylindrical outer housing to seal a top of the bi-modal radial flow reactor.

    CATALYST AND PROCESSES FOR AROMATIZATION

    公开(公告)号:US20210115341A1

    公开(公告)日:2021-04-22

    申请号:US17076471

    申请日:2020-10-21

    发明人: Vijay R. Sampath

    摘要: The present invention pertains to improved processes and catalysts for aromatization. The processes generally contacting a feed stream comprising a naphtha fraction having a C6 to C8 content with a catalyst pellet composition to form aromatic hydrocarbons. The catalyst pellet composition generally comprises a plurality of cylindrical pellets each pellet comprising a Group VIII metal on a zeolite. The pellets may have (a) a plurality of holes passing through the length of the cylindrical pellets, (b) a dome-shaped top and bottom, and (c) a plurality of semi-circular grooves along the length of the exterior of the cylinder.

    Reforming process using a catalyst system with differentiated acid
properties
    10.
    发明授权
    Reforming process using a catalyst system with differentiated acid properties 有权
    使用具有不同酸性质的催化剂体系的重整过程

    公开(公告)号:US6066251A

    公开(公告)日:2000-05-23

    申请号:US211789

    申请日:1998-12-15

    摘要: A catalyst system comprising a physical mixture of particles of a non-acidic large-pore zeolite containing a platinum-group metal and particles comprising a refractory inorganic oxide which is metal-free is effective for the reforming of a hydrocarbon feedstock. Reforming of paraffinic feedstocks to effect aromatization, particularly of a raffinate from aromatics extraction, provides improved activity in producing gasoline-range products when using the catalyst system of the invention.

    摘要翻译: 包含含有铂族金属的非酸性大孔沸石的颗粒和包含无金属的耐火无机氧化物的颗粒的物理混合物的催化剂体系对于烃原料的重整是有效的。 改进石蜡原料以实现芳构化,特别是芳族化合物萃取的萃余液,在使用本发明的催化剂体系时提供改进的生产汽油范围产物的活性。