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    Ammonia synthesis converter and method for small production units
    72.
    发明授权
    Ammonia synthesis converter and method for small production units 有权

    公开(公告)号：US11718535B1

    公开(公告)日：2023-08-08

    申请号：US17815848

    申请日：2022-07-28

    Applicant: SANsyco Consulting, LLC

    Inventor： Stephen A Noe

    IPC: C01C1/04 ,  B01J8/04

    CPC classification number: C01C1/0417 ,  B01J8/0469 ,  B01J8/0496 ,  C01C1/0411 ,  C01C1/0482 ,  B01J2208/0053 ,  B01J2208/00168 ,  B01J2208/00371

    Abstract: An ammonia synthesis converter for small production units which provides full access for routine maintenance and catalyst replacement while providing adequate catalyst pressure drop to ensure kinetic performance and reduce heat leak from the catalyst beds. A shell has a removable top head and an annular basket is removably mounted in the shell. First and second catalyst beds are disposed in the annular zone of the basket for axial down-flow in series. A quench gas is introduced into effluent from the first catalyst bed and the resulting mixture into a top of the second catalyst bed. A feed-effluent interchanger in the inner basket zone is adapted to receive effluent from the second catalyst bed and indirectly heat a feed to the first catalyst bed. Also, methods of operating and servicing the converter.

    METHOD TO OBTAIN METHYLENE MALONATE VIA BIS(HYDROXYMETHYL) MALONATE PATHWAY
    78.
    发明申请
    METHOD TO OBTAIN METHYLENE MALONATE VIA BIS(HYDROXYMETHYL) MALONATE PATHWAY 有权
    通过双（羟甲基）马来酸酐路线获得亚甲基马来酸盐的方法

    公开(公告)号：US20150343415A1

    公开(公告)日：2015-12-03

    申请号：US14823581

    申请日：2015-08-11

    Applicant: Sirrus, Inc.

    Inventor： Bernard Miles Malofsky ,  Adam Gregg Malofsky ,  Jeffrey M. Sullivan ,  Philip B. Kisanga ,  John Joseph Anderson ,  Michael Charles Milner Cockrem ,  Philip Jay Carlberg

    IPC: B01J19/24 ,  B01J8/06

    CPC classification number: B01J19/245 ,  B01J8/067 ,  B01J29/40 ,  B01J2208/00168 ,  B01J2208/065 ,  B01J2219/00033 ,  B01J2219/0004 ,  B01J2219/00087 ,  B01J2219/00177 ,  B01J2219/24 ,  C07C67/31 ,  C07C67/327 ,  C07C67/333 ,  C07C67/56 ,  C07C69/593 ,  C08F222/14 ,  C09D4/00 ,  C09J4/00

    Abstract: Method to obtain methylene malonate and related monomers following a bis(hydroxymethyl) malonate pathway. A bis(hydroxymethyl) malonate intermediary is subsequently reacted (i.e., subjected to thermolysis) to provide a methylene malonate monomer species. A source of formaldehyde (e.g., formalin) is provided in the presence of a basic catalyst (e.g., calcium hydroxide), to which a malonate (e.g., diethyl malonate) is added under suitable reaction conditions to obtain the desired intermediary (e.g., dialkyl bis(hydroxymethyl) malonate). The intermediary is reacted (i.e., subjected to thermolysis) under suitable conditions in the presence of a suitable catalyst (e.g., a zeolite) to obtain a methylene malonate monomer. In an exemplary embodiment, the thermolysis reaction includes the addition of the bis(hydroxymethyl) malonate intermediary onto a heated catalyst. The reaction product is collected and purified. The disclosed methods may be performed in a continuous operation. Discrete steps may be performed by using modular units within a plant.

    Abstract translation: 获得二（羟甲基）丙二酸酯途径后亚甲基丙二酸酯和相关单体的方法。 随后将双（羟甲基）丙二酸酯中间体反应（即进行热解）以提供亚甲基丙二酸酯单体种类。 在碱性催化剂（如氢氧化钙）的存在下提供甲醛源（如福尔马林），在合适的反应条件下加入丙二酸酯（如丙二酸二乙酯），得到所需的中间体（如二烷基 双（羟甲基）丙二酸酯）。 在合适的条件下，在合适的催化剂（例如沸石）的存在下，使中间体反应（即进行热解），得到亚甲基丙二酸酯单体。 在一个示例性实施方案中，热解反应包括在加热的催化剂上加入双（羟甲基）丙二酸酯中间体。 收集并纯化反应产物。 所公开的方法可以在连续操作中执行。 离散步骤可以通过使用工厂内的模块化单元来执行。

    Fixed bed reactor heat transfer structure
    79.
    发明授权
    Fixed bed reactor heat transfer structure 有权
    固定床反应器传热结构

    公开(公告)号：US09157689B2

    公开(公告)日：2015-10-13

    申请号：US14078040

    申请日：2013-11-12

    Applicant: Ceramatec, Inc.

    Inventor： Joseph J. Hartvigsen

    IPC: F28F7/00 ,  B01J8/00 ,  B01J8/02 ,  B01J19/00 ,  B01J19/24

    CPC classification number: F28F7/00 ,  B01J8/067 ,  B01J2208/00115 ,  B01J2208/0015 ,  B01J2208/00168 ,  B01J2208/00212 ,  B01J2208/00238 ,  B01J2208/00513 ,  B01J2208/065 ,  B01J2219/30223 ,  B01J2219/30242 ,  B01J2219/30408 ,  B01J2219/30416 ,  F28D2021/0022 ,  F28F1/40

    Abstract: An apparatus includes a heat transfer structure configured to be disposed at least partially within an enclosure of a fixed bed reactor and operable to transfer heat from a heat source to a heat sink. The heat transfer structure includes a plurality of fins each fin including a first end and a second end, the first end contacting an inner surface of the enclosure of the fixed bed reactor, the second end at least partially enclosed within the enclosure of the fixed bed reactor. A path of at least one of the plurality of fins comprises the shortest possible length between the first end of the at least one of the plurality of fins and the second end of the at least one of the plurality of fins.

    Abstract translation: 一种装置包括传热结构，其被配置为至少部分地设置在固定床反应器的外壳内并可操作以将热量从热源传递到散热器。 传热结构包括多个翅片，每个翅片包括第一端和第二端，第一端接触固定床反应器的外壳的内表面，第二端至少部分地封闭在固定床的外壳内 反应堆。 所述多个翅片中的至少一个的路径包括所述多个翅片中的所述至少一个翅片的所述第一端与所述多个翅片中的所述至少一个翅片的所述第二端之间的最短可能长度。

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