公开(公告)号：US12065518B2

公开(公告)日：2024-08-20

申请号：US17309175

申请日：2019-11-13

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Paul J. Clymans ,  Jefferson P. Galliano ,  Philippe A. P. D'Hooghe ,  Cindy Dewitte ,  Henri A. Lammens

IPC: C08F2/01 ,  B01J3/04 ,  B01J19/00 ,  C08F110/02 ,  C08F210/02 ,  C08F218/08

CPC classification number: C08F2/01 ,  B01J3/042 ,  B01J19/002 ,  C08F110/02 ,  B01J2219/00162 ,  B01J2219/00236 ,  B01J2219/00259 ,  B01J2219/0027 ,  C08F218/08 ,  C08F2400/04

Abstract: Controlling the shutdown of a polyethylene reactor system that includes a secondary compressor, a reactor, a high pressure let down valve (HPLDV), a high-pressure separator, and a high-pressure recycle gas system is provided. After a partial or complete shutdown of secondary compressor, HPLDV opens to a pre-set open position until the reactor pressure reduces to either a pre-set reduced pressure limit or a until the slope of the reactor gas density to reactor pressure exceeds 0.15. The HPLDV controls the pressure to a pressure set point.

公开(公告)号：US11958792B2

公开(公告)日：2024-04-16

申请号：US18447469

申请日：2023-08-10

Applicant: STAMICARBON B.V.

Inventor： Wilhelmus Hubertus Geurts

IPC: C07C273/04 ,  B01D5/00 ,  B01J3/02 ,  B01J3/04

CPC classification number: C07C273/04 ,  B01D5/0075 ,  B01J3/02 ,  B01J3/042

Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.

公开(公告)号：US11884611B2

公开(公告)日：2024-01-30

申请号：US17274135

申请日：2019-09-03

Applicant: BASF SE

Inventor： Oliver Bey ,  Peter Zehner ,  Michael Acker ,  Rocco Paciello ,  Mathias Schelwies ,  Martin Haubner ,  Guenter Wegner ,  Gerd Tebben ,  Gunnar Heydrich ,  Georg Seeber

IPC: C07C29/141 ,  B01J10/00 ,  B01J3/04 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  B01J19/30 ,  B01J19/32 ,  B01J31/20

CPC classification number: C07C29/141 ,  B01J3/042 ,  B01J10/00 ,  B01J10/002 ,  B01J19/0066 ,  B01J19/244 ,  B01J19/2465 ,  B01J19/26 ,  B01J19/30 ,  B01J19/32 ,  B01J31/20 ,  B01J2219/0009 ,  B01J2219/0025 ,  B01J2219/00092 ,  B01J2219/00096 ,  B01J2219/185 ,  B01J2219/1943 ,  B01J2531/822 ,  C07B2200/07

Abstract: A reactor for performing a gas/liquid biphasic high-pressure reaction with a foaming medium, comprising an interior formed by a cylindrical, vertically oriented elongate shell, a bottom and a cap, wherein the interior is divided by internals into a backmixed zone and a zone of limited backmixing, wherein the backmixed zone and the zone of limited backmixing are consecutively traversable by the reaction mixture, wherein the backmixed zone comprises means for introducing gas and liquid and a gas outlet and also comprises at least one mixing apparatus selected from a stirrer, a jet nozzle and means for injecting the gas, and the zone of limited backmixing comprises a reaction product outlet, a first cylindrical internal element which in the interior extends in the longitudinal direction of the reactor and which delimits the zone of limited backmixing from the backmixed zone, backmixing-preventing second internal elements in the form of random packings, structured packings or liquid-permeable trays arranged in the zone of limited backmixing and a riser tube whose lower end is arranged within the backmixed zone and whose upper end opens into the zone of limited backmixing so that liquid from the backmixed zone can ascend into the zone of limited backmixing via the riser tube, wherein flow into the zone of limited backmixing enters from below. The reactor is configured such that the high-pressure reaction space is optimally utilized and contamination of workup steps or subsequent reactions arranged downstream of the high-pressure reaction with foam is substantially avoided. The invention further relates to a process for performing a continuous gas/liquid biphasic high-pressure reaction in the reactor.

公开(公告)号：US20180070615A1

公开(公告)日：2018-03-15

申请号：US15701911

申请日：2017-09-12

Applicant: ALLPAX PRODUCTS LLC

Inventor： Beau R. Moreau ,  Philip M. LeBlanc

IPC: A23L3/00 ,  A23L3/10 ,  B65B55/06 ,  F16H19/06 ,  F16G13/20 ,  F16G1/28

CPC classification number: A23L3/001 ,  A23L3/10 ,  B01J3/03 ,  B01J3/042 ,  B65B55/06 ,  F16G1/28 ,  F16G13/20 ,  F16H19/0636 ,  G01N2035/0415 ,  G01N2035/0465

Abstract: A retort system includes a vessel having an access opening accessible via a movable door, a basket supporting assembly within the vessel and along which container baskets are movable for loading into the vessel and unloading from the vessel and a heating system for heating containers for treatment within the vessel. A container basket load/unload system moves container baskets into the vessel and for moving container baskets out of the vessel, and includes a rigid chain unit aligned or alignable with the access opening such that a rigid chain can be moved along a chain feed path into the vessel via the access opening.

公开(公告)号：US09719210B2

公开(公告)日：2017-08-01

申请号：US14825363

申请日：2015-08-13

Applicant: UPM-Kymmene Corporation

Inventor： Mauno Miettinen

IPC: D21C11/10 ,  B01J3/02 ,  B01J3/04 ,  B01J3/00 ,  C07G1/00 ,  D21C11/00 ,  D21C11/04

CPC classification number: D21C11/10 ,  B01J3/00 ,  B01J3/02 ,  B01J3/042 ,  C07G1/00 ,  D21C11/0007 ,  D21C11/04

Abstract: In a method for the continuous precipitation of lignin from black liquor black liquor is provided so as to flow as a pressurized flow in a reactor with a dwell time of less than 300 s. An acidifying agent selected from the group of carbon dioxide, acid and their combinations is led to the flow at one or more feeding sites to lower the pH of black liquor. The pH is allowed to decrease by the effect of the acidifying agent in the pressurized flow to the precipitation point of lignin, the pressure of the pressurized flow is abruptly released, and lignin particles are separated from black liquor.

公开(公告)号：US09139606B2

公开(公告)日：2015-09-22

申请号：US13879085

申请日：2011-10-14

Applicant: Mauno Miettinen

Inventor： Mauno Miettinen

IPC: D21C11/00 ,  C07G1/00 ,  D21C11/04

CPC classification number: D21C11/10 ,  B01J3/00 ,  B01J3/02 ,  B01J3/042 ,  C07G1/00 ,  D21C11/0007 ,  D21C11/04

Abstract: In a method for the continuous precipitation of lignin from black liquor black liquor is provided so as to flow as a pressurized flow in a reactor (2) with a dwell time of less than 300s,—an acidifying agent selected from the group of carbon dioxide, acid and their combinations is led to the flow at one or more feeding sites (2a) to lower the pH of black liquor,—the pH is allowed to decrease by the effect of the acidifying agent in the pressurized flow to the precipitation point of lignin, the pressure of the pressurized flow is abruptly released, and lignin particles are separated from black liquor.

Abstract translation: 在从黑液中连续沉淀木质素的方法中，提供黑液作为加压流在停留时间小于300s的反应器（2）中流动的方法 - 在选自二氧化碳组中的酸化剂 ，酸和它们的组合被导致在一个或多个进料位置（2a）处的流动以降低黑液的pH， - 通过加压流中的酸化剂的作用使pH降低到沉淀点 木质素，加压流的压力突然释放，木质素颗粒与黑液分离。

公开(公告)号：US20110094376A1

公开(公告)日：2011-04-28

申请号：US12994333

申请日：2009-04-14

Applicant: Masaki Mito ,  Masayoshi Hamada

Inventor： Masaki Mito ,  Masayoshi Hamada

IPC: F16J10/00 ,  F16J1/01

CPC classification number: B01J3/042 ,  B30B1/20 ,  B30B11/002 ,  G01R33/0354

Abstract: A cylinder portion is divided into a cylinder main body, and two side cylinders coupled to opposite ends of the cylinder main body. The cylinder main body is configured so that a sample-enclosing capsule in which a sample and a pressure medium are enclosed can be disposed inside the cylinder main body. Pistons for load transmission are disposed at opposite ends of the interior of the cylinder portion; and locking nuts are provided on the outer sides of the positions. The pistons are moved in an axial direction by screwing the locking nuts. With this configuration, a piston cylinder-type high-pressure generating device in which a cylinder having a small outer diameter is formed of a non-magnetic material can generate a high pressure while securing a sample space having a predetermined effective volume.

Abstract translation: 气缸部分分为气缸主体和联接到气缸主体的相对端的两个侧气缸。 气缸主体构造成使得封闭有样品和压力介质的样品封闭胶囊可以设置在气缸主体内。 用于负载传递的活塞设置在气缸部分的内部的相对端; 并且在位置的外侧设置有锁定螺母。 活塞通过拧紧锁紧螺母沿轴向移动。 利用这种结构，由非磁性材料形成外径小的气缸的活塞气缸型高压发生装置可以在确保具有预定有效容积的样品空间的同时产生高压。

公开(公告)号：US07211194B2

公开(公告)日：2007-05-01

申请号：US10974209

申请日：2004-10-27

Applicant: James A. Titmas

Inventor： James A. Titmas

IPC: C02F1/72

CPC classification number: C02F11/08 ,  B01J3/042 ,  B01J4/001 ,  B01J19/1812 ,  B01J2219/00063 ,  B01J2219/00085 ,  B01J2219/00153 ,  B01J2219/00164 ,  B01J2219/00247 ,  B08B9/0808 ,  C02F1/72 ,  C02F2101/20 ,  C02F2101/32 ,  C02F2301/066 ,  C02F2301/08 ,  C02F2303/16

Abstract: A gravity pressure vessel (GPV) for processing a fluid stream containing organic materials provides several improvements to the art. In one embodiment, a GPV of the present invention sustains the heat energy requirements of a hydrolysis GPV by including therein, a first reaction chamber for conducting an exothermic reaction, and subsequently providing a second reaction chamber for hydrolysis of certain organic materials refractory to the exothermic reaction. Another embodiment provides for the perpetual cleaning of the heat transfer surfaces of the GPV. Still another embodiment provides for selective alteration of a hydrolysis reaction within a GPV independent of the flow of the fluid stream through the GPV.

Abstract translation: 用于处理含有机材料的流体流的重力压力容器（GPV）为本领域提供了若干改进。 在一个实施方案中，本发明的GPV通过在其中包含用于进行放热反应的第一反应室来维持水解GPV的热能需求，随后提供用于水解某些有机材料的第二反应室 反应。 另一个实施例提供永久清洁GPV的传热表面。 另一个实施方案提供了选择性地改变GPV内的水解反应，而与通过GPV的流体流的流动无关。

公开(公告)号：US20060133972A1

公开(公告)日：2006-06-22

申请号：US10541698

申请日：2003-01-31

Applicant: Friedrich Guetlhuber ,  Manfred Lehr

Inventor： Friedrich Guetlhuber ,  Manfred Lehr

IPC: B01J8/04 ,  F28D7/00

CPC classification number: B01J8/008 ,  B01J3/02 ,  B01J3/03 ,  B01J3/042 ,  B01J4/002 ,  B01J8/0085 ,  B01J8/065 ,  B01J8/067 ,  B01J19/002 ,  B01J19/0053 ,  B01J19/26 ,  B01J2208/00203 ,  B01J2208/00212 ,  B01J2208/00495 ,  B01J2208/0053 ,  B01J2208/00548 ,  B01J2208/00716 ,  B01J2208/00849 ,  B01J2219/00263 ,  B01J2219/00265 ,  C07C51/21 ,  F28D7/16 ,  F28F9/0229 ,  F28F9/0265 ,  F28F2225/08 ,  Y10T137/043 ,  Y10T137/1654

Abstract: The invention relates to a tubular reactor for carrying out catalytic gas-phase reactions, containing a catalyst tube bundle (8) that is traversed by the relevant reaction gas mixture, is filled with a catalyst, extends between two tube sheets (4, 148) and around which flows a heat transfer medium contained within a surrounding reactor jacket (6). The reactor also comprises gas entry and discharge hoods (2; 60) that cover the two tube sheets for supplying the relevant process gas to the catalyst tubes and for discharging the reacted process gas from the catalyst tubes. Together with all the parts that come into contact with the process gas mixture, the reactor is designed to have an appropriate strength for withstanding the deflagration and explosive pressures that are to be taken into account during its operation. The volume available to the process gas mixture prior to its entry into the catalyst tubes is restricted as much as possible in construction and flow engineering terms.

Abstract translation: 本发明涉及一种用于进行催化气相反应的管式反应器，其中包含由相关反应气体混合物穿过的催化剂管束（8），填充有催化剂，在两个管板（4,148）之间延伸， 并且在其周围流过包含在周围的反应器夹套（6）内的传热介质。 反应器还包括气体进入和排出罩（2; 60），其覆盖两个管板，用于将相关工艺气体供应到催化剂管并从催化剂管排出反应的工艺气体。 连同与工艺气体混合物接触的所有部件，反应器被设计为具有适当的强度，以承受在其操作期间要考虑的爆燃和爆炸压力。 过程气体混合物在其进入催化剂管之前可用的体积在结构和流程工程方面尽可能地受到限制。

公开(公告)号：US06969746B2

公开(公告)日：2005-11-29

申请号：US10748011

申请日：2003-12-30

Applicant: Matthias Krull ,  Werner Reimann ,  Wilhelm Zoller ,  Di Heinz Dieter Bühnen ,  Gerhard Bettermann

Inventor： Matthias Krull ,  Werner Reimann ,  Wilhelm Zoller ,  Di Heinz Dieter Bühnen ,  Gerhard Bettermann

IPC: C10L1/192 ,  B01J3/04 ,  B01J19/24 ,  C08F2/00 ,  C08F2/02 ,  C08F210/02 ,  C08F210/16 ,  C10L1/14 ,  C10L1/16 ,  C10L1/18 ,  C10L1/195 ,  C10L1/196 ,  C10L1/197 ,  C10L1/22

CPC classification number: B01J3/042 ,  B01J19/2415 ,  B01J2219/00168 ,  B01J2219/00184 ,  B01J2219/00186 ,  C08F210/02 ,  C08F210/16 ,  C10L1/143 ,  C10L1/1608 ,  C10L1/1616 ,  C10L1/1641 ,  C10L1/195 ,  C10L1/1955 ,  C10L1/1963 ,  C10L1/1966 ,  C10L1/1973 ,  C10L1/1985 ,  C10L1/221 ,  C10L1/224 ,  C10L1/2364 ,  C08F2/00 ,  C08F218/08 ,  C08F218/10 ,  C08F210/14

Abstract: Process for the preparation of ethylene copolymers, and their use as additives to mineral oil and mineral oil distillates.The invention relates to a process for the preparation of terpolymers of ethylene and at least 2 further olefinically unsaturated compounds by polymerization in a tubular reactor fitted with at least one side branch, wherein the fresh monomer components, which are introduced into the tubular reactor via the reactor inlet (the primary stream) or via the side branch or side branches (secondary stream or secondary streams), in each of the streams contain ethylene and at most one further olefinically unsaturated compound.

Abstract translation: 制备乙烯共聚物的方法及其作为矿物油和矿物油馏出物添加剂的用途。 本发明涉及一种通过在装有至少一个侧枝的管式反应器中聚合制备乙烯和至少2种其它烯属不饱和化合物的三元共聚物的方法，其中新鲜单体组分通过 反应器入口（主流）或经由侧分支或副分支（二级流或二级流）在每个流中含有乙烯和至多一种其它烯属不饱和化合物。