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    BULK CATALYST WITHDRAWAL SYSTEM AND METHODS FOR THE USE THEREOF
    135.
    发明申请
    BULK CATALYST WITHDRAWAL SYSTEM AND METHODS FOR THE USE THEREOF 审中-公开

    公开(公告)号：US20200055015A1

    公开(公告)日：2020-02-20

    申请号：US16609905

    申请日：2018-05-03

    申请人： Dow Global Technologies LLC

    发明人： Matthew T. Pretz

    IPC分类号： B01J8/26 ,  B01J8/00 ,  B01J8/18 ,  B01J38/30 ,  C07C5/333

    摘要： A method for processing a chemical stream includes contacting a feed stream with a catalyst in a reactor portion of a reactor system causing a reaction which forms a product stream. The method includes separating the product stream from the catalyst, passing the catalyst to a catalyst processing portion of the reactor system, processing the catalyst in the catalyst processing portion, and passing a portion of the catalyst from the catalyst processing portion of the reactor system into a catalyst withdrawal system that includes a catalyst withdrawal vessel and a transfer line coupling the catalyst withdrawal vessel to the catalyst processing portion. Each of the catalyst withdrawal vessel and the transfer line include an outer metallic shell and an inner refractory lining. The method further includes cooling the catalyst in the catalyst withdrawal vessel from greater than or equal to 680° C. to less than or equal to 350° C.

    Catalyst regenerator and a riser terminator used therein
    136.
    发明授权
    Catalyst regenerator and a riser terminator used therein 有权

    公开(公告)号：US10464036B2

    公开(公告)日：2019-11-05

    申请号：US15761557

    申请日：2016-09-28

    申请人： Dow Global Technologies LLC

    发明人： Matthew T. Pretz ,  Don F. Shaw ,  Richard E. Walter ,  Madhusudhan Kodam

    IPC分类号： B01J8/00 ,  B01J8/18 ,  B01J8/24 ,  B01J19/00 ,  B01J19/24 ,  B01J38/30 ,  C10G11/18

    摘要： A catalyst regenerator for combusting carbonaceous deposits from a catalyst comprising a first chamber which comprises a catalyst inlet for feeding spent catalyst with carbonaceous deposits to said first chamber, a supplemental fuel gas distributor, and a distributor for an oxygen containing gas for distributing oxygen containing gas into said first chamber to contact said spent catalyst and combust carbonaceous deposits and supplemental fuel which further deactivates the spent catalyst and generates flue gas; a riser section extending from said first chamber for transporting the spent catalyst and the flue gas, the riser section comprising an outer wall, at least one slot in the outer wall, and a riser termination device which comprises a substantially internally flat cover plate, at least one arm extending from the cover plate, wherein the arm extends about the slot from the outer wall, the arm comprising an outer shell that encloses the arm and wherein no internal portion of the cover plate extends above an upper surface of the outer shell of the at least one arm is provided. Further provided is a riser termination device.

    FLUID CATALYTIC CRACKING UNIT WITH LOW EMISSIONS
    140.
    发明申请
    FLUID CATALYTIC CRACKING UNIT WITH LOW EMISSIONS 有权
    低排放液体催化裂化装置

    公开(公告)号：US20160362614A1

    公开(公告)日：2016-12-15

    申请号：US15156637

    申请日：2016-05-17

    申请人： ExxonMobil Research and Engineering Company

    发明人： Mohsen N. Harandi ,  Christopher G. Smalley

    IPC分类号： C10G11/18 ,  B01J38/30 ,  B01J8/24

    CPC分类号： C10G11/18 ,  B01J8/24 ,  B01J38/14 ,  B01J38/36 ,  B01J2208/00752 ,  C10G11/182 ,  C10G2300/4093 ,  C10G2300/70

    摘要： An FCC unit enables the normal regenerator to be eliminated by carrying out catalyst regeneration in the reactor section of the unit using air, oxygen-enriched air or even relatively pure oxygen as the stripping medium in the stripping section of the reactor while maintaining overall reducing conditions so that sulfur and nitrogen are produced in the form of hydrogen sulfide, ammonia and other reduced species. The combustion gases from the stripper are sent from the reactor with the cracking vapors to the FCC main fractionator, wet gas compressor and gas plant to process the by-products of the coke combustion along with the FCC reactor effluent. The principle is applicable to grass-roots FCC units with its potential for elimination of a major unit component but it also has potential for application to existing units to reduce the load on the regenerator or eliminate the need for the existing regenerator so that an existing regenerator may be converted to a parallel or auxiliary reactor system.

    摘要翻译： FCC装置使得能够通过在反应器部分中进行催化剂再生来消除正常的再生器，所述反应器部分使用空气，富氧空气或甚至相对纯的氧作为反应器的汽提部分中的汽提介质，同时保持总体还原条件 使得硫和氮以硫化氢，氨等还原物质的形式产生。 来自汽提器的燃烧气体从具有裂解蒸汽的反应器送入FCC主分馏器，湿气压缩机和气体设备，以与FCC反应器流出物一起处理焦炭燃烧的副产物。 该原则适用于具有消除主要单元组件的潜力的基层FCC单元，但它也具有应用于现有单元以减少再生器负载的潜力，或者消除对现有再生器的需要，使得现有的再生器 可以转换为并联或辅助反应器系统。