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1443 条记录 (耗时 0.019 秒)

    Fixed-bed multi-tubular reactor for producing alkenyl acetate
    1.
    发明授权
    Fixed-bed multi-tubular reactor for producing alkenyl acetate 有权

    公开(公告)号：US11607656B2

    公开(公告)日：2023-03-21

    申请号：US17289352

    申请日：2020-10-28

    申请人： SHOWA DENKO K.K.

    发明人： Yasuhiro Iwama ,  Maiko Ikushima ,  Kazuki Umehara ,  Mitsuru Tanaka ,  Toshiyuki Maki

    IPC分类号： B01J8/00 ,  B01J8/06 ,  B01J19/00 ,  C07C67/055 ,  C07C67/05

    摘要： A fixed-bed multi-tubular reactor for producing an alkenyl acetate by a gas phase catalytic oxidation reaction of a lower olefin, acetic acid and oxygen including a plurality of reaction tubes, a thermometer protection tube inserted into at least one of the plurality of reaction tubes, a thermometer inserted into the thermometer protection tube, and a shield disposed above the reaction tube into which the thermometer protection tube is inserted and attached to the thermometer protection tube, wherein an effective projection region of the shield entirely covers the inlet opening of the reaction tube into which the thermometer protection tube is inserted.

    Optimized Reactor Configuration for Optimal Performance of the Aromax Catalyst for Aromatics Synthesis
    2.
    发明申请
    Optimized Reactor Configuration for Optimal Performance of the Aromax Catalyst for Aromatics Synthesis 有权

    公开(公告)号：US20230046694A1

    公开(公告)日：2023-02-16

    申请号：US17948718

    申请日：2022-09-20

    申请人： Chevron Phillips Chemical Company LP

    发明人： Vincent D. McGahee ,  Daniel M. Hasenberg

    IPC分类号： C10G35/10 ,  C10G59/02 ,  B01J8/06 ,  B01J8/00 ,  C10G59/06 ,  C10G59/00

    摘要： A naphtha reforming reactor system comprising a first reactor comprising a first inlet and a first outlet, wherein the first reactor is configured to operate as an adiabatic reactor, and wherein the first reactor comprises a first naphtha reforming catalyst; and a second reactor comprising a second inlet and a second outlet, wherein the second inlet is in fluid communication with the first outlet of the first reactor, wherein the second reactor is configured to operate as an isothermal reactor, and wherein the second reactor comprises a plurality of tubes disposed within a reactor furnace, a heat source configured to heat the interior of the reactor furnace; and a second naphtha reforming catalyst disposed within the plurality of tubes, wherein the first naphtha reforming catalyst and the second naphtha reforming catalyst are the same or different.

    Universal Tube Marker for Identifying Chemical Reactor Tubes Accurately and Efficiently
    5.
    发明申请
    Universal Tube Marker for Identifying Chemical Reactor Tubes Accurately and Efficiently 有权

    公开(公告)号：US20220387953A1

    公开(公告)日：2022-12-08

    申请号：US17660023

    申请日：2022-04-20

    申请人： Tubemaster, Inc.

    发明人： Clifford L. Johns

    IPC分类号： B01J8/06

    摘要： A sector marker for placement over a tubesheet and defining an opening for performing maintenance on an open tube located below the sector marker, the sector marker positioned over the tubesheet by at least two pins extending below the sector marker and respectively received in tube openings below the sector marker. A device and a method for easily and accurately marking and identifying the location of the tubes in a reactor vessel and for keeping track, in real-time, of the tasks performed on the tubes.

    PROCESSES FOR PRODUCING SYNGAS STARTING FROM PRETREATED RECOVERY PLASTIC POLYMERS
    6.
    发明申请
    PROCESSES FOR PRODUCING SYNGAS STARTING FROM PRETREATED RECOVERY PLASTIC POLYMERS 有权

    公开(公告)号：US20220324708A1

    公开(公告)日：2022-10-13

    申请号：US17630866

    申请日：2020-07-28

    申请人： POLITECNICO DI MILANO ,  CONSORZIO INTERUNIVERSITARIO NAZIONALE PER LA SCIENZA E TECNOLOGIA DEI MATERIALI (INSTM)

    发明人： Flavio MANENTI ,  Maurizio MASI ,  Sergio MIELE ,  Enrica BARGIACCHI

    IPC分类号： C01B3/38 ,  B01J8/06 ,  C10K3/02 ,  C10J3/84

    摘要： A process for producing syngas from pre-treated recovery plastic polymers comprising:
    a) gasifying said recovery pre-treated polymers according to the following reaction scheme R1: [—CH2—]+H2O═CO+2H2;  R1: b) hydrogenating said pre-treated polymers to higher hydrocarbons and methane by using hydrogen produced in R1, according to the following reaction scheme R3: [—CH2—]n+H2═CnH(2n+2)  R3: wherein n is an integer of from 1 to 3, said reaction being optionally combined with oligomers and olefin formation reactions; c) steam reforming of methane according to the following reaction scheme R4: CH4+H2O═CO+3H2;  R4: and optionally d) reforming reaction of methane according to the following reaction scheme R5: CH4+CO2=2CO+2H2;  R5: said process being carried out in a plant (10), (20), (30), (40), (50) comprising a gasification section (11), (21), (31), (41), (51) and a reforming section (12), (22), (32), (42), (52) comprising a tube bundle (13), (23), (33), (43), (53) provided with a catalyst wherein, i) said gasification (11), (21), (31) and reforming sections (12),(22), (32) are part of a sole reactive unit (10), (20), (30), or said gasification (41), (51) and reforming section (42), (52) are two physically distinct reactive units (40), (50), ii) the gasification section (11), (21) or the reactive unit (41) provides respectively the energetical support to the reforming section (12), (22) or to the reforming reactive unit (42), thanks to the exothermic combustion reaction scheme R2: [—CH2-]+1.5O2═CO2+H2O;  R2: or in alternative: the reforming section (32) or the reforming reactive unit (52) provides energetic support to the corresponding gasification section (31) or gasification reactive unit (51), thanks to the exothermic combustion reaction scheme R6: CH4+2O2═CO2+2H2O.  R6:

    REACTOR TUBE ASSEMBLY
    7.
    发明申请
    REACTOR TUBE ASSEMBLY 有权

    公开(公告)号：US20220314182A1

    公开(公告)日：2022-10-06

    申请号：US17640024

    申请日：2020-09-16

    申请人： SABIC GLOBAL TECHNOLOGIES B.V.

    发明人： John Joseph ANDERSON ,  Subramanian Brahmadathan SWERNATH

    IPC分类号： B01J8/06 ,  B01J8/02 ,  C01B32/80

    摘要： The present invention relates to a reactor tube assembly comprising a reactor tube having a tube length and an inner surface, at least two tubular inserts each having an insert length and comprising i) a shell having an exterior portion at least partially contacting the inner surface of the reactor tube and ii) at least one fin projecting from the shell in a radial direction towards a center of said insert, wherein the inserts are positioned in the tube in a stacked manner such that the fins of the at least two inserts are offset in a longitudinal direction a particulate catalyst in contact with at least the shell and the fins of the inserts.

    PROCESS
    8.
    发明申请
    PROCESS 有权

    公开(公告)号：US20220298014A1

    公开(公告)日：2022-09-22

    申请号：US17626833

    申请日：2019-07-23

    申请人： Oxford University Innovation Limited

    发明人： Peter Philip EDWARDS ,  Tiancun XIAO ,  Xiangyu JIE

    IPC分类号： C01B3/26 ,  B01J23/745 ,  B01J27/224 ,  B01J21/18 ,  B01J8/06 ,  H01M8/0612

    摘要： The present invention provides a process for producing a gaseous product comprising hydrogen, said process comprising exposing a gaseous hydrocarbon to microwave radiation in the presence of a solid catalyst, wherein the catalyst comprises at least one iron species supported on a support comprising a ceramic material or carbon, or a mixture thereof. Also provided are a heterogeneous mixture comprising a solid catalyst in intimate mixture with a gaseous hydrocarbon wherein the catalyst comprises at least one iron species supported on a support comprising a ceramic material or carbon, or mixture thereof. Also provided are the use of said mixture to produce hydrogen, a microwave reactor comprising said mixture and a a fuel cell module comprising a (i) a fuel cell and (ii) a heterogeneous mixture as described herein, and a vehicle or electronic device comprising said fuel cell module.

    Air lance for removing pellets from a tube
    9.
    发明授权
    Air lance for removing pellets from a tube 有权

    公开(公告)号：US11406955B2

    公开(公告)日：2022-08-09

    申请号：US16816939

    申请日：2020-03-12

    申请人： Tubemaster, Inc.

    发明人： Clifford L Johns ,  Dennis Patrick McAndrews

    IPC分类号： B01J8/00 ,  B01J8/06

    摘要： An air lance for removing pellets from tubes may include a nozzle with an inner surface having converging and diverging portions adjacent the downstream end of the nozzle to improve air flow. The air lance may include a projection fixed relative to the nozzle and extending beyond the downstream end of the nozzle to serve as a feeler, a poker, and a spacer.