PROCESS FOR SCAVENGING MERCAPTANS USING A SCAVENGER THAT HAS UNDERGONE A STEP OF CO2 PASSIVATION

    公开(公告)号:US20250050305A1

    公开(公告)日:2025-02-13

    申请号:US18719472

    申请日:2022-12-12

    Abstract: The present invention relates to a process for trapping mercaptans contained in a sulfur-containing hydrocarbon feedstock which is optionally partially desulfurized, resulting from a step of catalytic hydrodesulfurization, at a temperature of between 40° C. and 250° C., a pressure of between 0.2 MPa and 5 MPa, at an hourly space velocity, defined as the volume flow rate of feedstock at the inlet per volume of trapping mass, of between 0.1 h−1 and 50 h−1, in the presence of a trapping mass comprising an active phase based on at least one group VIII, IB or IIB metal, and a porous oxide or oxide mixture, the active metal of which has been activated beforehand by reduction and then passivated for the loading thereof by carbon dioxide treatment.

    METHOD FOR CAPTURING MERCAPTANS USING A MACRO AND MESOPOROUS CAPTURE MASS

    公开(公告)号:US20250041822A1

    公开(公告)日:2025-02-06

    申请号:US18720507

    申请日:2022-12-12

    Abstract: Process for trapping mercaptans contained in a sulfur-containing hydrocarbon feedstock, in the presence of a trapping mass comprising an active phase based on at least one group VIII, IB or IIB metal, and a mesoporous or macroporous support, said trapping mass comprising a specific surface area of between 120 m2/g and 350 m2/g, and: the volume of mesopores with a diameter greater than or equal to 2 nm and less than 50 nm corresponds to between 40% and 70% by volume of the total pore volume of said trapping mass; the volume of macropores with a diameter greater than or equal to 50 nm corresponds to between 30% and 60% by volume of the total pore volume of said trapping mass.

    PROCESS FOR RECOVERING MERCAPTANS, WITH SPECIFIC NI/NIO RATIO AND TEMPERATURE SELECTION

    公开(公告)号:US20250043199A1

    公开(公告)日:2025-02-06

    申请号:US18720522

    申请日:2022-12-12

    Abstract: The present invention relates to a process for trapping mercaptans contained in a sulfur-containing hydrocarbon feedstock which is optionally partially desulfurized, resulting from a step of catalytic hydrodesulfurization, at a temperature of between 170° C. and 220° C., a pressure of between 0.2 MPa and 5 MPa, at an hourly space velocity, defined as the volume flow rate of feedstock at the inlet per volume of trapping mass, of between 0.1 h−1 and 50 h−1, in the presence of a trapping mass comprising a nickel-based active phase with an Ni°/NiO ratio of between 0.25 and 4, and an inorganic support selected from the group consisting of alumina, silica, silica-alumina, and clays.

    METHOD FOR CAPTURING MERCAPTANS USING A MESOPOROUS CAPTURE MASS

    公开(公告)号:US20250043198A1

    公开(公告)日:2025-02-06

    申请号:US18718860

    申请日:2022-12-12

    Abstract: Process for trapping mercaptans contained in a sulfur-containing hydrocarbon feedstock, in the presence of a trapping mass comprising an active phase based on at least one group VIII, IB or IIB metal, and a mesoporous support comprising a bimodal distribution of mesopores, said trapping mass comprising a specific surface area of between 120 m2/g and 350 m2/g, and: the volume of mesopores with a diameter greater than or equal to 2 nm and less than 20 nm corresponds to between 35% and 70% by volume of the total pore volume of said trapping mass; the volume of mesopores with a diameter greater than or equal to 20 nm and less than 50 nm corresponds to between 25% and 60% by volume of the total pore volume of said trapping mass.

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