CATALYST ACTIVATOR
    1.
    发明申请
    CATALYST ACTIVATOR 审中-公开
    催化剂活化剂

    公开(公告)号:WO2012072623A2

    公开(公告)日:2012-06-07

    申请号:PCT/EP2011071259

    申请日:2011-11-29

    Abstract: The invention relates generally to a catalyst activator, and in particular to a catalyst activator for heat conditioning a catalyst, comprising: a) a vessel for containing a catalyst charge having an internal diameter of at least 1.2 metres and/or an internal volume of at least 5 m3; b ) a fluidisation grid plate disposed in said vessel, said fluidisation grid plate and having an upper major surface and a lower major surface; c) an array of generally conical depressions in said upper major surface that overlap by less than 17%; and d) an array of holes perforating said fluidisation grid plate, said holes extending from at least some of said generally conical depressions through said lower surface.

    Abstract translation: 本发明一般涉及一种催化剂活化剂,特别涉及一种用于加热调节催化剂的催化剂活化剂,该催化剂活化剂包括:a)用于容纳内径至少为1.2米和/或内部容积为 至少5立方米; b)设置在所述容器中的流化栅格板,所述流化栅格板具有上主表面和下主表面; c)在所述上主表面中大致锥形凹陷的阵列重叠小于17%; 以及d)穿过所述流化格栅板的孔阵列,所述孔从至少一些所述大致圆锥形凹陷穿过所述下表面延伸。

    SLURRY PHASE POLYMERISATION PROCESS
    2.
    发明申请
    SLURRY PHASE POLYMERISATION PROCESS 审中-公开
    浆料相聚合方法

    公开(公告)号:WO2009030644A1

    公开(公告)日:2009-03-12

    申请号:PCT/EP2008/061369

    申请日:2008-08-29

    Abstract: A polymerisation process is disclosed in which polyethylene is produced in slurry in a polymerisation reactor in the presence of a Ziegler Natta catalyst and an activator, and slurry containing the polymer is withdrawn from the reactor and transferred to a flash tank operating at a pressure and temperature such that at least 50mol% of the liquid component of the slurry is withdrawn from the flash tank as a vapour and at least 98mol%, more preferably at least 98.5mol%, and most preferably at least 99.5mol%, of the vapour withdrawn from the flash tank is capable of being condensed at a temperature of between 15 and 40C without compression, wherein a by-product suppressor, which reduces the amount of by-product formed per unit of polyethylene produced by at least 10% compared with an identical polymerisation process where the by-product suppressor is not present, is used in the reactor.

    Abstract translation: 公开了一种聚合方法,其中聚乙烯在齐格勒纳塔催化剂和活化剂存在下在聚合反应器中以淤浆形式制备,含有聚合物的浆料从反应器中排出并转移到在压力和温度下操作的闪蒸罐 使得至少50mol%的浆液的液体组分作为蒸气从闪蒸罐中取出,并且至少98mol%,更优选至少98.5mol%,最优选至少99.5mol%的蒸气从 闪蒸罐能够在不压缩的情况下在15至40℃的温度下冷凝,其中副产物抑制剂与相同的聚合相比减少了每单位聚乙烯形成的副产物的量至少10% 在反应器中使用副产物抑制剂不存在的方法。

    PARTICULATE FLOW CONTROL PROCESS
    4.
    发明申请
    PARTICULATE FLOW CONTROL PROCESS 审中-公开
    颗粒流动控制过程

    公开(公告)号:WO2004054700A1

    公开(公告)日:2004-07-01

    申请号:PCT/EP2003/014039

    申请日:2003-12-05

    Inventor: WALWORTH, Brent

    Abstract: A process is disclosed for providing a flow of particulate matter such as a catalyst to a reactor, comprising intermittently adding said particulate matter and a diluent to a mixing tank, and continuously withdrawing a slurry of particulate matter in diluent from the mixing tank for introduction into the reactor, wherein prior to each addition of particulate matter and diluent to the mixing tank, the concentration of particulate matter in the diluent already in the mixing tank is measured or calculated, and the amount of particulate matter and diluent subsequently added is measured so as to achieve the same concentration at the end of the addition as that measured or calculated prior to the addition. Preferably measurement of the amount of particulate matter and diluent added to the mixing tank is carried out before any diluent is added to the particulate matter.

    Abstract translation: 公开了一种用于向反应器提供诸如催化剂的颗粒物质流的方法,包括将所述颗粒物质和稀释剂间歇地加入到混合罐中,并且将稀释剂中的颗粒物质的淤浆从混合罐中引入到 反应器,其中在向混合罐中每次添加颗粒物质和稀释剂之前,测量或计算已经在混合罐中的稀释剂中的颗粒物质的浓度,并测量随后添加的颗粒物质和稀释剂的量,以便 在添加结束时达到与添加前测量或计算相同的浓度。 优选地,在将任何稀释剂添加到颗粒物质之前进行添加到混合罐中的颗粒物质和稀释剂的量的测量。

    POLYMERISATION REACTOR
    5.
    发明申请
    POLYMERISATION REACTOR 审中-公开
    聚合反应器

    公开(公告)号:WO2009101007A1

    公开(公告)日:2009-08-20

    申请号:PCT/EP2009/051248

    申请日:2009-02-04

    Abstract: A tubular reactor for use in polymerisation reactions is described, having a design pressure P R of 40-65 barg, at least a portion of which is oriented vertically and at least part of which vertical portion is surrounded by a concentric jacket for the passage of cooling fluid, wherein the design pressure in barg of the jacket P J is less than 0.0018.P R 225 . Another aspect of the invention concerns a tubular reactor for use in polymerisation reactions having a design pressure P R of 40-65 barg, at least a portion of which is oriented vertically and at least part of which vertical portion is surrounded by a concentric jacket for the passage of cooling fluid, wherein the actual thickness of the reactor wall is either no more than 2mm greater and/or no more than 10% greater than the minimum wall thickness required to withstand the design pressure P R as calculated according to the ASME Boiler and Pressure Vessel code.

    Abstract translation: 描述了用于聚合反应的管式反应器,其设计压力PR为40-65巴,其至少一部分垂直取向,并且其至少一部分垂直部分被同心夹套围绕以便冷却通过 流体,其中护套PJ的设计压力小于0.0018.PR 225.本发明的另一方面涉及用于聚合反应的管式反应器,其设计压力PR为40-65巴,至少一部分 其垂直取向,并且其垂直部分的至少一部分由用于冷却流体通过的同心夹套包围,其中反应器壁的实际厚度不得大于2mm的大于或大于10% 要承受设计压力PR所需的最小壁厚,根据ASME锅炉和压力容器代码计算。

    SLURRY PHASE POLYMERISATION PROCESS
    6.
    发明申请
    SLURRY PHASE POLYMERISATION PROCESS 审中-公开
    浆料相聚合方法

    公开(公告)号:WO2009030645A1

    公开(公告)日:2009-03-12

    申请号:PCT/EP2008/061370

    申请日:2008-08-29

    Abstract: Process for producing a multimodal polyethylene in at least two reactors connected in series, in which 20-80wt% of a first polymer is made in suspension in a first reactor and 80-20wt% of a second polymer is made in suspension in a second reactor in the presence of the first polymer, and a stream or slurry containing the resulting polymer is withdrawn from the second reactor and transferred to a flash tank operating at a pressure and temperature such that at least 50mol% of the liquid component of the slurry, or the non- polymer component of the stream entering the flash tank, is withdrawn from the flash tank as a vapour, wherein the concentration in the stream or slurry entering the flash tank of components having a molecular weight below 50 g/mol, Qjghts (mol%), satisfies the equation C lights c ) + 4.4(P c - 0.8) - 7(C H2 /C Et ) where T c and P c are respectively the temperature (in °C) and pressure (MPa g) at the location where the vapour withdrawn from the flash tank is condensed, and C H2 and C Et are the molar concentrations in the flash tank of hydrogen and ethylene respectively.

    Abstract translation: 在至少两个串联连接的反应器中制备多峰聚乙烯的方法,其中将20-80重量%的第一聚合物悬浮在第一反应器中,并将80-20重量%的第二聚合物悬浮在第二反应器 在第一聚合物的存在下,将含有所得聚合物的料流或浆料从第二反应器中取出并转移到在压力和温度下操作的闪蒸罐中,使得至少50mol%的浆液的液体组分或 进入闪蒸罐的物流的非聚合物组分作为蒸汽从闪蒸罐中取出,其中进入闪蒸罐的料流或浆料中的分子量低于50g / mol的组分的浓度Qjghts(mol %)满足等式Clights c)+ 4.4(Pc-0.8)-7(CH 2 / CEt)其中Tc和Pc分别是从蒸汽中取出的蒸气的温度(℃)和压力(MPa g) 闪蒸罐冷凝,CH 2和CEt分别是闪蒸罐中氢气和乙烯的摩尔浓度。

    SLURRY PHASE POLYMERISATION PROCESS
    7.
    发明申请
    SLURRY PHASE POLYMERISATION PROCESS 审中-公开
    浆料相聚合方法

    公开(公告)号:WO2009030642A1

    公开(公告)日:2009-03-12

    申请号:PCT/EP2008/061366

    申请日:2008-08-29

    Abstract: Process for producing a multimodal polyethylene in at least two reactors connected in series, in which 20-80wt% of a high molecular weight (HMW) polymer is made in suspension in a first reactor and 20-80wt% of a low molecular weight (LMW) polymer is made in suspension in a second reactor, wherein the ratio of the average activity in the LMW reactor to the average activity in the HMW reactor is from 0.25 and 1.5, where average activity in each reactor is defined as the rate of polyethylene produced in the reactor (kgPE/hr) / [ethylene concentration in the reactor (mol%) x residence time in the reactor (hours) x feed rate of catalyst into the reactor (g/hr)], residence time being defined as the mass of the polymer in the reactor (kg)/the output rate of polymer from the reactor (kg/hr), and wherein the volume of the second reactor is at least 10%, preferably at least 30% and more preferably at least 50% greater than the volume of the first reactor, and the ratio of length to diameter of the first reactor, L/D(l), is greater than that of the second reactor, L/D(2), and preferably at least 20% greater.

    Abstract translation: 在至少两个串联的反应器中制备多峰聚乙烯的方法,其中将20-80重量%的高分子量(HMW)聚合物悬浮在第一反应器和20-80重量%的低分子量(LMW) )聚合物在第二反应器中悬浮制备,其中LMW反应器中的平均活性与HMW反应器中的平均活性的比例为0.25和1.5,其中每个反应器中的平均活性定义为产生的聚乙烯的速率 在反应器中(kgPE / hr)/ [反应器中的乙烯浓度(mol%)×在反应器中的停留时间(小时)×催化剂进入反应器的进料速率(g / hr)],停留时间定义为质量 的反应器中的聚合物(kg)/来自反应器的聚合物的输出速率(kg / hr),并且其中第二反应器的体积为至少10%,优选至少30%,更优选至少50% 大于第一反应器的体积,以及长度与直径之比t 他的第一反应器L / D(1)大于第二反应器的L / D(2),优选至少大于20%。

    POLYMERISATION PROCESS
    8.
    发明申请
    POLYMERISATION PROCESS 审中-公开
    聚合过程

    公开(公告)号:WO2008141968A1

    公开(公告)日:2008-11-27

    申请号:PCT/EP2008/055815

    申请日:2008-05-13

    CPC classification number: C08F10/00 C08F10/02 C08F10/06 C08F2/14 C08F2/01

    Abstract: An olefin polymerisation process is disclosed in which a slurry of olefin polymer is produced within a polymerisation zone, and a polymer slurry stream is withdrawn from the polymerisation zone and passed through a transfer line to a centrifugal concentrating device, which separates it into a solids-lean stream or streams each having a solids concentration less than that of the polymer slurry stream entering the concentrating device and a solids-rich stream or streams each having a solids concentration greater than that of the polymer slurry stream entering the concentrating device, wherein at least part of the solids-rich stream or streams is recycled back into the polymer slurry stream upstream of the concentrating device and downstream of the polymerisation zone.

    Abstract translation: 公开了一种烯烃聚合方法,其中烯烃聚合物的浆料在聚合区内产生,并且聚合物浆料流从聚合区域排出并通过输送管线至离心浓缩装置,离心浓缩装置将其分离成固体 - 每个固体浓度小于进入浓缩装置的聚合物浆料流的固体浓度的贫流或多个流,每个固体浓度大于进入浓缩装置的聚合物浆料流的固体浓度,其中至少 一部分富含固体的物流或物流被再循环回浓缩装置上游和聚合区下游的聚合物浆液流中。

    POLYMER TREATMENT
    10.
    发明申请
    POLYMER TREATMENT 审中-公开
    聚合物处理

    公开(公告)号:WO2004039848A1

    公开(公告)日:2004-05-13

    申请号:PCT/EP2003/012041

    申请日:2003-10-27

    CPC classification number: C08F6/005 C08L23/00

    Abstract: A process for the separation of volatile material from particulate polymer which has been substantially freed from unreacted monomer in an earlier separation step, comprising (a) feeding the particulate polymer to a purge vessel, optionally causing it to move through the vessel in substantially plug-flow mode, (b) heating the particulate polymer in the purge vessel to a temperature greater than 30°C but insufficiently high to cause the particles to become agglomerated, and/or maintaining the polymer at a temperature in this range in the purge vessel, (c) feeding gas to the purge vessel counter-current to the movement of the particulate polymer to remove volatile material therefrom, (d) removing the particulate polymer from the purge vessel, wherein substantially all of the heating of the particles which occurs in the purge vessel is accomplished by preheating the gas fed into the purge vessel.

    Abstract translation: 一种用于在早期分离步骤中基本上不含未反应单体的颗粒聚合物分离挥发性物质的方法,其包括(a)将颗粒状聚合物进料至清洗容器,任选地使其以基本上堵塞的方式移动通过容器, 流动模式,(b)将清洗容器中的颗粒状聚合物加热到大于30℃的温度但不足以使颗粒聚集,和/或将聚合物保持在该吹扫容器中的该温度范围内, (c)将反应器中的气体与所述微粒聚合物的运动相反地从所述吹扫容器中除去挥发性物质,其中基本上全部加热所述颗粒聚合物 吹扫容器通过预热送入吹扫容器的气体来实现。

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