知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.012 秒)

    HIGH PRESSURE STRIPPERS FOR USE IN UREA PLANTS
    1.
    发明申请
    HIGH PRESSURE STRIPPERS FOR USE IN UREA PLANTS 有权

    公开(公告)号：US20220064109A1

    公开(公告)日：2022-03-03

    申请号：US17418512

    申请日：2020-04-30

    申请人： YARA INTERNATIONAL ASA

    发明人： Lino Giovanni PORRO

    IPC分类号： C07C273/16 ,  C07C269/08 ,  B01J19/24 ,  B01J19/00 ,  B01J8/06

    摘要： Shell-and-tube strippers for stripping a urea/carbamate mixture, related systems, methods, and uses. The stripper includes a shell, a plurality of tubes disposed within the shell, and a heating fluid distributor for homogenizing the flow of a heating fluid near a heating fluid inlet. The heating fluid distributor includes an edge wall and a laterally disposed heating fluid distribution plate. Related systems, methods, and uses are also provided.

    STEAM NETWORK ASSEMBLY FOR A PLANT COMPRISING AN AMMONIA-PRODUCING UNIT AND A UREA-PRODUCING UNIT
    2.
    发明申请
    STEAM NETWORK ASSEMBLY FOR A PLANT COMPRISING AN AMMONIA-PRODUCING UNIT AND A UREA-PRODUCING UNIT 有权

    公开(公告)号：US20220082032A1

    公开(公告)日：2022-03-17

    申请号：US17419815

    申请日：2020-05-08

    申请人： YARA INTERNATIONAL ASA

    发明人： Danny FRANCEUS ,  Lino Giovanni PORRO

    IPC分类号： F01K7/38 ,  F01K15/00 ,  F01K7/12 ,  C07C273/04 ,  C01C1/04

    摘要： A steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit, including a high-pressure steam line, two medium-pressure steam lines and first and second turbines supplied with high-pressure steam by the high-pressure steam line; wherein the first turbine is a condensing-type turbine with extraction into one of the two medium-pressure steam lines, and is configured to deliver power to a syngas compressor in the ammonia-producing unit of the plant, and the second turbine is a counter-pressure type turbine with extraction connected to the two medium-pressure steam lines and is configured to deliver power to a CO2 compressor in the urea-producing unit of the plant. A method to distribute high-pressure steam in a steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit and a method to revamp the steam network assembly for a plant including an ammonia-producing unit and a urea-producing unit.

    HIGH PRESSURE STRIPPERS FOR USE IN UREA PLANTS
    6.
    发明申请
    HIGH PRESSURE STRIPPERS FOR USE IN UREA PLANTS 有权

    公开(公告)号：US20210187471A1

    公开(公告)日：2021-06-24

    申请号：US17055501

    申请日：2019-05-16

    申请人： YARA INTERNATIONAL ASA

    发明人： Luigi SERRAIOCCO ,  Lino Giovanni PORRO

    IPC分类号： B01J19/24 ,  C07C273/16 ,  C07C273/04 ,  B01J19/00

    摘要： A stripper for stripping a urea/carbamate mixture. The stripper comprises a shell and a plurality of tubes disposed within the shell. A shell-side space is provided between the tubes and the shell. A first heating fluid inlet, a second heating fluid inlet, and a heating fluid outlet are in fluid connection with the shell-side space. The second heating fluid inlet is disposed between the first heating fluid inlet and the heating fluid outlet. Related uses, systems, and methods are provided as well.

    BAFFLES FOR HEAT EXCHANGERS
    7.
    发明公开
    BAFFLES FOR HEAT EXCHANGERS 审中-公开

    公开(公告)号：US20230314095A1

    公开(公告)日：2023-10-05

    申请号：US18021422

    申请日：2021-08-20

    申请人： Yara International ASA

    发明人： Lino Giovanni PORRO

    IPC分类号： F28F9/013 ,  F28D7/16

    CPC分类号： F28F9/0135 ,  F28D7/16

    摘要： A baffle for a shell-and-tube heat exchanger. The baffle including a flat plate with a region having a plurality of annular elements designed for receiving the tubes of the shell-and-tube heat exchanger, arranged in at least two rows, wherein a row is staggered with respect to an adjacent row, wherein the outer diameter of the annular element is less than 130% of the inner diameter of the annular element, and wherein each annular element is joined with all of its adjacent annular elements by a bridging structure in the plane of the plate, oriented along a line connecting the centers of two adjacent annular elements, thereby defining a plurality of openings in the plate. A shell-and-tube heat exchanger, a method for heating a liquid composition, a method for stripping a liquid composition including urea, carbamate, ammonia and water, and a method for producing a solid, particulate, urea-based composition.