Simulated moving bed separation method and device with bypass fluid flow

    公开(公告)号:US10675559B2

    公开(公告)日:2020-06-09

    申请号:US16441547

    申请日:2019-06-14

    Abstract: Method for the simulated moving bed separation of a feedstock (F), in which when a fluid/effluent (feedstock F, desorbent D, extract E, raffinate R) is injected/withdrawn into/from a chosen plate (Pi) using an external bypass line (Li−1/i, Li/i+1) connected to said chosen plate (Pi), the flow rate within the said external bypass line (Li−1/i, Li/i+1) is controlled in such a way that: a major proportion of the fluid/effluent (F, D, E, R) is injected/withdrawn into/from the chosen plate (Pi); and a minor proportion of the fluid/effluent (F, D, E, R) is injected/withdrawn into/from the adjacent plate (Pi−1, Pi+1) connected to the said external bypass line (Li−1/i, Li/i+1).

    Low-capacity compartmentalized reactor

    公开(公告)号:US10661242B2

    公开(公告)日:2020-05-26

    申请号:US16490200

    申请日:2018-01-26

    Abstract: Catalytic reactor (10) with radial flow of a hydrocarbon feedstock to be treated comprising: a reaction zone (13) enclosed in a substantially cylindrical outer shell (14) that is in the form of at least one catalytic module (15) extending along the vertical axis (AX), an annular zone (30) located at the same level as said catalytic module (15), outside of the reaction zone (13), said catalytic reactor being characterized in that it comprises an empty space (27) located between two side walls (23, 24) of at least one catalytic module (15), located outside of the reaction zone (13) and opening onto said annular zone (30), said empty space (27) comprising at least one solid net (26) extending along the vertical axis (AX) and positioned adjacent to the collecting means (29).

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