Gas injection element for a fluid catalytic cracking unit and gas distribution system equipped with this injection element

    公开(公告)号:US10940455B2

    公开(公告)日:2021-03-09

    申请号:US16619557

    申请日:2018-06-11

    Inventor: Hubert Simon

    Abstract: The invention relates to a gas injection element (10) for a system for distributing as gas inside a chamber of a fluid catalytic cracking unit. This injection element comprises a passage (14) passing right through it in a longitudinal direction (X), and —a metallic internal element (20) of which an internal surface (22) defines part of the through-passage (14) passing through in a longitudinal direction (X), —a hollow metal sleeve (30) accepting one end (20a) of the internal element (20) and attached thereto, —a hollow metal support (40) having an internal surface (42) defining the remainder of the through-passage passing through in the longitudinal direction (X), the said sleeve also being attached to one end of the support (40).

    GAS/LIQUID SEPARATION COLUMN CONTAINING A DISPENSING DEVICE

    公开(公告)号:US20210060453A1

    公开(公告)日:2021-03-04

    申请号:US17009592

    申请日:2020-09-01

    Abstract: Gas/liquid separation column, containing a device for dispensing a liquid, intended for a gas/liquid separation column, comprising: a plate, in which several orifices are arranged, through which the liquid is able to leave the dispensing device; a plurality of stacks extending from the plate, each stack being configured to be followed by the gas; a plurality of plugging means respectively arranged at one end of one of the stacks, each plugging means having a gutter shape allowing a first portion of the liquid to be collected; a plurality of troughs for directly collecting a second portion of the liquid, at least one part of the orifices being distributed in the base of said troughs, each plugging means comprising a first open longitudinal end and a second closed longitudinal end.

    Catalyst delivery system for polymerization vessel

    公开(公告)号:US10933392B2

    公开(公告)日:2021-03-02

    申请号:US16345834

    申请日:2017-10-31

    Abstract: Described herein are systems and methods for delivering catalyst to a reaction vessel. The methods include the use of a positive displacement reciprocating piston system having a catalyst delivery housing that contains a piston system. The piston system includes a top section, a bottom section, and a catalyst holding space between the top and bottom section such that the piston system is movable between a first and a second position to inject catalyst from the catalyst holding space into the reaction vessel when the piston system is in the second position and fill the catalyst holding space with catalyst from a catalyst feed supply when the piston system is in the first position.

    SYSTEM FOR MANUFACTURING FUMED SILICA PARTICLES

    公开(公告)号:US20210047190A1

    公开(公告)日:2021-02-18

    申请号:US16849951

    申请日:2020-04-15

    Abstract: The present disclosure provides a system for generating fumed silica particles for manufacturing of an optical fiber preform. The system includes a generator and a plurality of inlets connected with the generator. The generator includes a plurality of burners. The plurality of inlets include a first inlet, a second inlet, a third inlet and a fourth inlet. The first inlet provides passage for flow of a precursor material to the generator. The second inlet provides passage for flow of a first gas to the generator. The third inlet provides passage for flow of a second gas to the generator. The fourth inlet provides passage for flow of a carrier gas to the generator. The plurality of burners enables a chemical reaction between the precursor material, the first gas and the second gas that facilitates the generation of the fumed silica particles.

    Hydroformylation System With Vent Reactor Recycle to Primary Reactor

    公开(公告)号:US20210040023A1

    公开(公告)日:2021-02-11

    申请号:US16920856

    申请日:2020-07-06

    Abstract: A hydroformylation system for making aldehydes includes: (a) a primary reactor provided with catalyst feed, syngas feed and olefin feed adapted to convert the olefin and syngas to product aldehyde; (b) a first liquid vapor separator coupled to the primary reactor for receiving output therefrom, adapted to separate the product aldehyde into a crude aldehyde product stream and a vent stream containing syngas and unreacted olefin; (c) a vent reactor coupled to the first liquid vapor separator to receive the vent stream therefrom, the vent reactor also being coupled to the primary reactor which is configured to provide catalyst thereto, wherein the vent reactor is operative to convert unreacted olefin in the vent stream from the first liquid vapor separator to additional product aldehyde. A second liquid vapor separator is coupled to the vent reactor to receive output therefrom and adapted to separate the output from the vent reactor into a liquid recycle stream containing additional product aldehyde and catalyst as well as another vent stream, the second liquid vapor separator also being coupled to the primary reactor so as to provide the recycle stream thereto.

    METHODS FOR PREPARING PARTICLE PRECURSOR, AND PARTICLE PRECURSOR PREPARED THEREBY

    公开(公告)号:US20210032122A1

    公开(公告)日:2021-02-04

    申请号:US17043623

    申请日:2019-06-11

    Abstract: The invention relates to a method for preparing core-shell structured particle precursor under a co-precipitation reaction. In this method, by controlling the feeding of different types of anion compositions and/or cation compositions, and adjusting the pH to match with the species, precipitated particles are deposited to form a precipitated particle slurry, filtering, and drying the precipitated particle slurry to yield the particle precursor. The invention also provides a particle precursor which includes a core-shell structure. The shell is made of gradient anions and/or cations. Such particle precursor can be used to prepare cathode of lithium-ion battery.

    SAMPLE MIXING CONTROL
    98.
    发明申请

    公开(公告)号:US20210003602A1

    公开(公告)日:2021-01-07

    申请号:US17026836

    申请日:2020-09-21

    Inventor: Ze'ev RUSSAK

    Abstract: A method for controlling the mixing of a plurality of samples subject to a chemical process, the method comprising computer executed steps, the steps comprising: for each one of the samples, receiving respective data on a result obtained for the sample using the chemical process, and for each one of at least two of the samples, further receiving respective data on classification of the sample into one of at least two classes, for each one of the samples, calculating a respective rank based on the result obtained for the sample using the chemical process, finding among the samples, at least one pair of samples classified into different ones of the classes, such that for each respective one of the found pairs, none of the samples having a calculated rank in between the ranks calculated for the two samples of the found pair are classified into one of the classes.

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