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    • 1. 发明申请
    • PROCESS FOR THE POLYMERIZATION OF OLEFINS
    • 烯烃聚合方法
    • WO2017025330A1
    • 2017-02-16
    • PCT/EP2016/067901
    • 2016-07-27
    • SABIC GLOBAL TECHNOLOGIES B.V.
    • BANAT, YahyaALSHAIBAN, Ahmad, AbdullahAL-HUMAIDAN, Osamah
    • C08F2/01B01J8/08C08F110/06C08F210/06C08F2/34C08F10/06C08F10/00C08F110/02C08F210/02C08F10/02
    • C08F2/01B01J8/08B01J8/1818B01J8/1827B01J8/1836B01J2208/00176B01J2208/00274B01J2208/00991C08F2/34C08F10/00C08F10/02C08F10/06C08F110/02C08F110/06C08F210/02C08F210/06C08F210/16
    • The present invention relates to a process for the continuous preparation of a polyolefin in a reactor from one or more α-olefin monomers of which at least one is ethylene or propylene, wherein the reactor comprises a fluidized bed, an expanded section located at or near the top of the reactor, a distribution plate located at the lower part of the reactor and an inlet for a recycle stream located under the distribution plate wherein the process comprises - feeding a polymerization catalyst to the fluidized bed in the area above the distribution plate - feeding the one or more α-olefin monomers to the reactor - withdrawing the polyolefin from the reactor - circulating fluids from the top of the reactor to the bottom of the reactor, wherein the circulating fluids are compressed using a compressor and subsequently cooled using a heat exchanger to form a cooled recycle stream comprising liquid, and wherein the cooled recycle stream is introduced into the reactor using the inlet for the recycle stream wherein a part of the cooled recycle stream is drawn to form a liquid comprising stream, wherein the liquid comprising stream is introduced into the expanded section during at least part of the polymerization process, and wherein the liquid comprising stream is brought into contact with at least part of the interior surface of the expanded section.
    • 本发明涉及一种在反应器中从一种或多种α-烯烃单体连续制备聚烯烃的方法,其中至少一种是乙烯或丙烯,其中反应器包括流化床,位于或接近 反应器的顶部,位于反应器下部的分配板和位于分配板下方的再循环流的入口,其中该方法包括 - 将聚合催化剂供给到分配板上方的流化床中 - 将一种或多种α-烯烃单体进料到反应器中 - 从反应器中回收聚烯烃 - 将反应器的顶部循环流体循环到反应器底部,其中使用压缩机压缩循环流体,随后使用热量 交换器以形成包含液体的冷却循环流,并且其中使用r的入口将冷却的循环流引入反应器 循环流,其中将一部分冷却的再循环料流抽吸以形成包含料流的液体,其中在聚合过程的至少部分期间将包含流体的液体引入膨胀部分,并且其中将包含流体的液体与 膨胀部分的内表面的至少一部分。
    • 5. 发明申请
    • EBULLATED BED HYDROPROCESSING METHODS AND SYSTEMS AND METHODS OF UPGRADING AN EXISTING EBULLATED BED SYSTEM
    • EBULLED BED HYDROPROCESSING METHODS AND SYSTEMS AND METHODS OF UPGRADING AEDING EBULLED BED SYSTEM
    • WO2005104752A3
    • 2006-04-06
    • PCT/US2005014435
    • 2005-04-28
    • HEADWATERS HEAVY OIL LLC
    • LOTT ROGER KLEE LAP-KEUNG
    • C10G45/00C10G47/00C10G47/26C10G47/02B01J8/18C10G65/02C10G65/10
    • C10G47/06B01J8/08B01J8/22B01J8/226C10G45/04C10G45/16C10G45/34C10G45/46C10G45/56C10G47/26C10G49/005C10G49/12C10G65/00C10G65/02C10G67/08C10G2300/1033C10G2300/107C10G2300/1077C10G2300/202C10G2300/206C10G2300/4056C10G2300/70C10G2300/703C10G2300/802
    • An ebullated bed hydroprocessing system, and also a method for upgrading a pre-existing ebullated bed hydroprocessing system, involves introducing a colloidal or molecular catalyst, or a precursor composition capable of forming the colloidal or molecular catalyst, into an ebullated bed reactor. The colloidal or molecular catalyst is formed by intimately mixing a catalyst precursor composition into a heavy oil feedstock and raising the temperature of the feedstock to above the decomposition temperature of the precursor composition to form the colloidal or molecular catalyst in situ. The improved ebullated bed hydroprocessing system includes at least one ebullated bed reactor that employs both a porous supported catalyst and the colloidal or molecular catalyst to catalyze hydroprocessing reactions involving the feedstock and hydrogen. The colloidal or molecular catalyst provides catalyst in what would otherwise constitute catalyst free zones within the ebullated bed hydroprocessing system. Asphaltene or other hydrocarbon molecules too large to diffuse into the pores of the supported catalyst can be upgraded by the colloidal or molecular catalyst. A slurry phase reactor may be positioned upstream from one or more ebullated bed reactors or converted from a pre-existing ebullated bed reactor.
    • 沸腾床加氢处理系统以及用于升级预先存在的沸腾床加氢处理系统的方法包括将能形成胶体或分子催化剂的胶体或分子催化剂或前体组合物引入沸腾床反应器中。 胶体或分子催化剂通过将催化剂前体组合物紧密地混合到重油原料中并将原料的温度升高到高于前体组合物的分解温度以形成原位形成胶态或分子催化剂而形成。 改进的沸腾床加氢处理系统包括至少一个沸腾床反应器,其使用多孔负载催化剂和胶体或分子催化剂催化涉及原料和氢的加氢反应。 胶体或分子催化剂提供催化剂,否则将在沸腾床加氢处理系统内构成催化剂自由区。 太大而不能扩散到负载型催化剂的孔中的沥青质或其他烃类分子可以通过胶体或分子催化剂来提升。 浆料相反应器可以位于一个或多个沸腾床反应器的上游,或从预先存在的沸腾床反应器中转化。
    • 7. 发明申请
    • PROCESS FOR PRODUCTION OF CELLULOSE PULP AND/OR DELIGNIFICATION OF SECONDARY FIBERS
    • 生产纤维素浆的方法和/或二次纤维的修饰
    • WO1988006201A1
    • 1988-08-25
    • PCT/NO1988000011
    • 1988-02-11
    • FONGEN, Sigurd
    • D21C03/00
    • D21C9/00B01J8/005B01J8/08D21C7/00
    • In a process for digesting plant and wood fibers or for delignification, optinally with preceding deinking, of fibers from chemical or mechanical pulps, optionally with succeeding bleaching, the fibrous raw material is digested or delignified in an alkaline pumpable slurry in a pressurized tube system and conducted therethrough by the use of pulp pumps. On its way through the pressurized tube system the pulp is repeatedly dewatered and after each dewatering, save the last one, is rediluted with pressed out process liquor recycled from a downstream dewatering step and/or from a downstream pumping stage of the process. While being conducted through the pressurized tube system the pulp is subjected to stepwise increasing pressure, the pressure increase being caused by the pulp pumps. An apparatus for use in carrying out the process comprises an inner perforated tube (83) surrounded by an outer tube (85) which at its ends is sealed against the inner tube (83). The outer tube (85) which is capable of enduring high pressures is provided with one or more tubes (86) for receiving process liquor pressed out from the pulp through the perforations of the inner tube (83).
    • 10. 发明申请
    • A STEAM SEPARATION UNIT FOR A SYSTEM FOR HYDROLYSIS OF LIGNOCELLULOSIC BIOMASS MATERIAL
    • 用于水解生物质生物质材料的系统的蒸汽分离装置
    • WO2015199605A1
    • 2015-12-30
    • PCT/SE2015/050732
    • 2015-06-24
    • VALMET AB
    • THYR, AndersAHLGREN, ÖrjanSJÖBLOM, Krister
    • B04C5/18B01D45/02B01D45/12C13K1/02
    • B01D45/12B01D45/02B01J8/08B04C5/18B04C5/22C12M45/20C13K1/02
    • A steam separation unit for separation of steam from lignocellulosic biomass material in a hydrolysis process comprising a treatment vessel including a separation section and a biomass collection section. The separation section is arranged with at least one inlet for receiving at least partly hydrolyzed biomass material mixed with steam and at least one control outlet for discharging the steam from the vessel. A biomass collection section arranged to be filled at least partly with liquid during operation and coupled to the separation section to collect the biomass material after separation from steam, wherein the biomass collection section includes a mixing element for mixing the biomass material with liquid and at least one control valve for discharging biomass material mixed with liquid. A system for hydrolysis of lignocellulosic biomass material including such a separation unit is also presented.
    • 一种蒸汽分离单元,用于在水解过程中从木质纤维素生物质材料中分离蒸汽,所述水解方法包括包括分离部分和生物质收集部分的处理容器。 分离段布置有至少一个入口,用于接收与蒸汽混合的至少部分水解的生物质材料和用于从容器排出蒸汽的至少一个控制出口。 一种生物质收集部分,其布置成在操作期间至少部分地用液体填充并且与分离部分相连,以在与蒸汽分离之后收集生物质材料,其中生物质收集部分包括用于将生物质材料与液体混合的混合元件 一个用于排放与液体混合的生物质材料的控制阀。 还提出了包括这种分离单元的木质纤维素生物质材料的水解系统。