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    METHOD FOR ESTIMATING A DELAY OF A PROCESS DATA CHANGE WITH RESPECT TO A PARAMETER CHANGE IN AN ETHYLENE OXIDE REACTOR
    2.
    发明申请
    METHOD FOR ESTIMATING A DELAY OF A PROCESS DATA CHANGE WITH RESPECT TO A PARAMETER CHANGE IN AN ETHYLENE OXIDE REACTOR 有权

    公开(公告)号：US20240369993A1

    公开(公告)日：2024-11-07

    申请号：US18654784

    申请日：2024-05-03

    Applicant: Scientific Design Company, Inc.

    Inventor： SANDIP KUMAR LAHIRI ,  Mansoor HUSAIN ,  SOMNATH CHOWDHURY ,  VIKAS KUMAR CHALKA

    IPC: G05B19/4155

    Abstract: The invention relates to a method of estimating a delay of a process data change with respect to a parameter change of a process of producing ethylene oxide in a reactor comprising the steps: Recording a history representing process data changes in connection with parameter changes of a real ethylene oxide reactor over time, Analyzing the history by means of an artificial neural network model regarding a delay of a first process data change with respect to a first parameter change and/or a delay of the first process data change with respect to a first and a second parameter change, Acquiring process data of a reactor producing ethylene oxide, Determining a future point in time based on the analysis and the acquired process data, when a change of a parameter of the running process will have a certain impact on the process property.

    Silver impregnation solution containing high-boiling oxygenated additive and its use in ethylene oxide catalyst preparation
    6.
    发明授权
    Silver impregnation solution containing high-boiling oxygenated additive and its use in ethylene oxide catalyst preparation 有权

    公开(公告)号：US11439986B2

    公开(公告)日：2022-09-13

    申请号：US15839987

    申请日：2017-12-13

    Applicant: Scientific Design Company, Inc.

    Inventor： Evgeny Beletskiy

    IPC: B01J23/50 ,  C07D301/02 ,  B01J37/02 ,  B01J35/00 ,  B01J37/08

    Abstract: A silver impregnation solution containing: (i) silver ions, (ii) a polar organic additive containing two to four carbon atoms and two to four functional groups selected from hydroxy, carboxylic acid, and amine groups, provided that a carboxylic acid group can only be present along with a hydroxy or amine group, and provided that an amine group can only be present along with a hydroxy or carboxylic acid group; and (iii) water; wherein components (i) and (ii) are water soluble and dissolved in the impregnation solution. Also described herein is a method for producing a catalyst effective in the oxidative conversion of ethylene to ethylene oxide, the method comprising subjecting a refractory carrier impregnated with the above-described silver impregnation solution to a calcination process. Also described herein is a method for converting ethylene to ethylene oxide by use of the foregoing silver catalyst, as produced by the above-described silver impregnation solution.

    CORRUGATED GRID SUPPORT FOR VERTICAL BOILING REACTOR
    8.
    发明申请
    CORRUGATED GRID SUPPORT FOR VERTICAL BOILING REACTOR 有权

    公开(公告)号：US20220203322A1

    公开(公告)日：2022-06-30

    申请号：US17564658

    申请日：2021-12-29

    Applicant: Scientific Design Company, Inc.

    Inventor： Mohammad Ganjvar ,  Jiacheng Ni

    IPC: B01J19/00 ,  F28D7/10

    Abstract: A baffle (i.e., tube support) for use in a shell-and-tube heat exchange reactor, such as, for example, an ethylene oxide (EO) reactor, is provided that accommodates reduced tube pitch, and thus more catalyst packed tubes can be inside the reactor. The baffle, which can be referred to herein as a corrugated grid support, includes a plurality of corrugated stainless steel strips which sit into each other and form a grid pattern having tube openings. Each tube opening is configured to permit a catalyst packed tube to be inserted therein, while allowing a sufficient open area along the shell side of the tube to permit coolant to flow through the reactor.

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