Feedstock injection device of an FCC unit, having a locally larger cross-section

    公开(公告)号:US11192078B2

    公开(公告)日:2021-12-07

    申请号:US16967101

    申请日:2019-02-04

    摘要: The invention relates to an injection device (10) for atomizing a liquid into droplets using a gas, comprising a hollow tubular body (12) having a longitudinal direction (X). An inner wall (13) defines a first region, referred to as contact region (Z1), and a second region (Z2). The body (12) has an inner cross-section that varies continuously or constantly over the entire length thereof except at the junction between the first and second regions, where the inner wall (13) of the body includes at least one cavity (201) which increases the size of the inner cross-section of the body, said at least one cavity extending over a predefined length in the longitudinal direction.

    Ceramic Injector for Fluid Catalytic Cracking Unit

    公开(公告)号:US20200156034A1

    公开(公告)日:2020-05-21

    申请号:US16751446

    申请日:2020-01-24

    摘要: The invention relates to a feedstock injector (2′) for injecting an atomized hydrocarbon feedstock into a tubular-type reactor with substantially upward or downward flow that is intended to be used in a fluid catalytic cracking unit, having: at least one hollow cylindrical body (41); at least a first and a second inlet openings (40, 42) for respectively injecting a liquid hydrocarbon feedstock to be cracked and an atomizing gas into said cylindrical body (41); at least one contact chamber (46) arranged inside said hollow cylindrical body, in which said liquid hydrocarbon feedstock to be cracked and said atomizing gas are intended to be brought into contact in order to atomize said liquid hydrocarbon feedstock to be cracked; and at least one outlet opening (44) that opens on the inside of said reactor in order to eject said liquid hydrocarbon feedstock thus atomized. According to the invention, each element of the injector (2′) is formed of a ceramic material.

    Ceramic orifice chamber for fluid catalytic cracking unit

    公开(公告)号:US10118143B2

    公开(公告)日:2018-11-06

    申请号:US15327418

    申请日:2015-07-23

    摘要: The invention relates to an orifice chamber designed to expand a gas, in particular intended for a fluid catalytic cracking unit, said orifice chamber comprising the following elements: a chamber having an axis (X), an inlet duct that opens into the chamber, an outlet duct located on the opposite side from the inlet duct following said axis (X), and a plurality of internal plates positioned crosswise to the axis (X) inside the chamber at a distance from one another along the axis (X), each internal plate being provided with a plurality of through-orifices, characterized in that at least the plurality of internal plates is made of a ceramic material.

    Feedstock injection device of an FCC unit

    公开(公告)号:US11311851B2

    公开(公告)日:2022-04-26

    申请号:US16967069

    申请日:2019-02-04

    IPC分类号: B01J8/18 B01J4/00 C10G11/18

    摘要: The invention relates to an injection device (10) for atomizing a liquid into droplets using a gas, comprising a hollow tubular body (12) having a longitudinal direction (X). An inner wall (13) defines a first region, referred to as contact region (Z1), and a second region (Z2). The body includes: —at least two inlet ports (14; 16) for injecting liquid and an inlet port for injecting gas, all of said ports extending to the first region (Z1); —at least one outlet port (18), located downstream of the first and second regions, for discharging the atomized liquid. The body (12) has an inner cross-section that varies continuously or constantly over the entire length thereof. Between regions (Z1) and (Z2), the inner wall (13) includes at least one baffle (261) which is shaped such that in each plane running perpendicularly to the longitudinal direction of the body containing said baffle, the baffle reduces an inner cross-section of the body over the entire periphery of the inner wall (13).

    FCC Unit Charge Injection Device with Limited Pressure Drop

    公开(公告)号:US20200101430A1

    公开(公告)日:2020-04-02

    申请号:US16496862

    申请日:2018-03-22

    摘要: The invention relates to an injection device (10) configured to atomize a liquid into droplets using a gas, comprising a hollow tubular body (12) of longitudinal direction (X). An internal wall (13) defines a first zone referred to as a contact zone (Z1) and a second zone (Z2). The body has: at least a first and a second inlet opening (14; 16) opening into the said first zone (Z1), so as to respectively inject a liquid and an atomizing gas, at least one outlet orifice (18) situated downstream of the first and second zones, for removing the atomized liquid from the body. The internal wall (13) of the body is provided, between the zones (Z1) (Z2), with at least one chicane (20i) configured so that, in each plane perpendicular to the longitudinal direction of the body containing the said chicane, this chicane extends over just part of the periphery of the internal wall (13).

    Ceramic injector for fluid catalytic cracking unit

    公开(公告)号:US10576441B2

    公开(公告)日:2020-03-03

    申请号:US15326613

    申请日:2015-07-23

    摘要: The invention relates to a feedstock injector (2′) for injecting an atomized hydrocarbon feedstock into a tubular-type reactor with substantially upward or downward flow that is intended to be used in a fluid catalytic cracking unit, having: at least one hollow cylindrical body (41); at least a first and a second inlet openings (40, 42) for respectively injecting a liquid hydrocarbon feedstock to be cracked and an atomizing gas into said cylindrical body (41); at least one contact chamber (46) arranged inside said hollow cylindrical body, in which said liquid hydrocarbon feedstock to be cracked and said atomizing gas are intended to be brought into contact in order to atomize said liquid hydrocarbon feedstock to be cracked; and at least one outlet opening (44) that opens on the inside of said reactor in order to eject said liquid hydrocarbon feedstock thus atomized. According to the invention, each element of the injector (2′) is formed of a ceramic material.

    Ceramic injector for fluid catalytic cracking unit

    公开(公告)号:US11040322B2

    公开(公告)日:2021-06-22

    申请号:US16751446

    申请日:2020-01-24

    摘要: The invention relates to a feedstock injector (2′) for injecting an atomized hydrocarbon feedstock into a tubular-type reactor with substantially upward or downward flow that is intended to be used in a fluid catalytic cracking unit, having: at least one hollow cylindrical body (41); at least a first and a second inlet openings (40, 42) for respectively injecting a liquid hydrocarbon feedstock to be cracked and an atomizing gas into said cylindrical body (41); at least one contact chamber (46) arranged inside said hollow cylindrical body, in which said liquid hydrocarbon feedstock to be cracked and said atomizing gas are intended to be brought into contact in order to atomize said liquid hydrocarbon feedstock to be cracked; and at least one outlet opening (44) that opens on the inside of said reactor in order to eject said liquid hydrocarbon feedstock thus atomized. According to the invention, each element of the injector (2′) is formed of a ceramic material.