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    Process, method, and system for removing heavy metals from fluids
    11.
    发明授权
    Process, method, and system for removing heavy metals from fluids 有权

    公开(公告)号：US10179880B2

    公开(公告)日：2019-01-15

    申请号：US14922383

    申请日：2015-10-26

    Applicant: Chevron U.S.A. Inc.

    Inventor： Dennis John O'Rear ,  Russell Evan Cooper

    IPC: C07C7/148 ,  C10G31/06 ,  C10G7/00

    Abstract: Particulate mercury, in the form of metacinnabar, is removed from crude oil by thermally treating the crude oil at temperatures in a range from 150° C. to 350° C. and at a pressure sufficient to limit the amount of crude vaporizing to no more than 10 wt. %. In the thermal treatment, the particulate mercury is converted into elemental mercury, which can be removed by directly adsorption from the crude onto a support. In one embodiment, the elemental mercury can be removed by stripping the crude with a gas, and then adsorbing the mercury onto a support. The crude oil can be optionally treated prior to stabilization and contains 0.1 wt. % or more of C4-hydrocarbons. Following the thermal treatment, the treated crude is cooled and the pressure is reduced. The C4-hydrocarbons then vaporize from the crude and carry the elemental mercury with them. The elemental mercury in this hydrocarbon gas stream may then be removed by a solid adsorbent.

    Process, Method, and System for Removing Mercury From Pipelines
    15.
    发明申请
    Process, Method, and System for Removing Mercury From Pipelines 审中-公开
    从管道中去除汞的过程，方法和系统

    公开(公告)号：US20160281006A1

    公开(公告)日：2016-09-29

    申请号：US15079209

    申请日：2016-03-24

    Applicant: Chevron U.S.A. Inc.

    Inventor： Kevin J. Grice ,  Adam J. Dassey ,  Aly Hakam ,  Dennis John O'Rear ,  Asheesh K. Tiwary

    IPC: C10G29/10 ,  C02F1/04 ,  C02F1/52 ,  C07C7/148

    CPC classification number: C02F1/52 ,  C02F1/048 ,  C02F1/5236 ,  C02F2101/20 ,  C07C7/1485 ,  C10G31/06 ,  C10G53/04 ,  C10G2300/205

    Abstract: Hydroprocessing facilities may operate for extended periods of time before detection of mercury in the inlet facilities, as mercury adsorbs onto the metallic pipelines used to transport the hydrocarbon fluids, e.g., gas, produced waters, from the wells to processing facilities (“flowlines”). Once the pipelines become “saturated” with mercury, mercury will breakthrough and be detected at the inlet facilities. A mercury management/control scheme is disclosed wherein a thermal treatment step using any of laser treatment, a combustor, or an to induction coil is used to clean the pipeline, managing mercury accumulation in the pipeline for a reduced mercury concentration in the fluid exiting the flowlines.

    Abstract translation: 在检测入口设施中的汞之前，加氢处理设备可能会长时间运行，因为汞吸附到用于将烃流体（例如，天然气，产水）从井运输到处理设施（“流线”）的金属管道上， 。 一旦管道用汞“饱和”，汞就会突破，并在入口设施被检测出来。 公开了一种汞管理/控制方案，其中使用激光处理，燃烧器或感应线圈中的任何一种的热处理步骤来清洁管道，管理管道中的汞积聚，以减少离开该流体的流体中的汞浓度 流线。

    Process, Method, and System for Removing Mercury From Pipelines
    16.
    发明申请
    Process, Method, and System for Removing Mercury From Pipelines 有权
    从管道中去除汞的过程，方法和系统

    公开(公告)号：US20160281005A1

    公开(公告)日：2016-09-29

    申请号：US15079198

    申请日：2016-03-24

    Applicant: Chevron U.S.A. Inc.

    Inventor： Dennis John O'Rear ,  Kevin J. Grice ,  Vijay Ramchandra Pradhan

    IPC: C10G29/10 ,  C02F1/52 ,  C02F1/72 ,  C07C7/148

    CPC classification number: C10G29/10 ,  C02F1/5236 ,  C02F1/72 ,  C02F2101/20 ,  C07C7/1485 ,  C10G29/00 ,  C10G2300/205

    Abstract: Hydroprocessing facilities may operate for extended periods of time before detection of mercury in the inlet facilities, as mercury adsorbs onto the metallic pipelines used to transport the hydrocarbon fluids, e.g., gas, produced waters, from the wells to processing facilities (“flowlines”). Once the pipelines become “saturated” with mercury, mercury will breakthrough and be detected at the inlet facilities. A mercury management/control scheme is disclosed wherein a chemical treatment step using aqueous sulfidic solution is integrated into a progressive pigging plan to clean the pipeline, managing mercury accumulation in the pipeline for a reduced mercury concentration in the fluid exiting the flowlines.

    Abstract translation: 在检测入口设施中的汞之前，加氢处理设备可能会长时间运行，因为汞吸附到用于将烃流体（例如，天然气，产水）从井运输到处理设施（“流线”）的金属管道上， 。 一旦管道用汞“饱和”，汞就会突破，并在入口设施被检测出来。 公开了一种汞管理/控制方案，其中使用含水硫化物溶液的化学处理步骤被整合到逐渐清洗计划中以清洁管道，管理管道中的汞积聚，以减少离开流线的流体中的汞浓度。

    In-situ method and system for removing heavy metals from produced fluids
    17.
    发明授权
    In-situ method and system for removing heavy metals from produced fluids 有权
    用于从产生的流体中去除重金属的原位方法和系统

    公开(公告)号：US09447675B2

    公开(公告)日：2016-09-20

    申请号：US13896255

    申请日：2013-05-16

    Applicant: Chevron U.S.A. Inc.

    Inventor： Sujin Yean ,  Darrell Lynn Gallup ,  Lyman Arnold Young ,  Russell Evan Cooper ,  Matthew Bernard Zielinski ,  Mark Anthony Emanuele ,  Brian Christopher Llewellyn ,  Dennis John O'Rear

    IPC: E21B43/16 ,  E21B43/38 ,  E21B43/26 ,  E21B43/34 ,  E21B43/40 ,  C09K8/52

    CPC classification number: E21B43/38 ,  C09K8/52 ,  E21B43/16 ,  E21B43/26 ,  E21B43/34 ,  E21B43/40

    Abstract: Methods and systems relate to the in-situ removal of heavy metals such as mercury, arsenic, etc., from produced fluids such as gases and crudes from a subterranean hydrocarbon-bearing formation. A sufficient amount of a fixing agent is injected into formation with a dilution fluid. The fixing agent reacts with the heavy metals forming precipitate, or is extracted heavy metals into the dilution fluid as soluble complexes. In one embodiment, the heavy metal precipitates remain in the formation. After the recovery of the produced fluid, the dilution fluid containing the heavy metal complexes is separated from the produced fluid, generating a treated produced fluid having a reduced concentration of heavy metals. In one embodiment, the dilution fluid is water, and the wastewater containing the heavy metal complexes after recovery can be recycled by injection into a reservoir.

    Abstract translation: 方法和系统涉及从地下含烃地层的产生的流体例如气体和原油原位去除重金属如汞，砷等。 用稀释液注入足量的固定剂。 固定剂与重金属形成沉淀物反应，或将重金属萃取到稀释液中作为可溶性络合物。 在一个实施方案中，重金属沉淀物保留在地层中。 在回收所产生的流体之后，将含有重金属配合物的稀释液与所产生的流体分离，产生具有降低的重金属浓度的经处理的生产流体。 在一个实施方案中，稀释流体是水，并且在回收之后含有重金属络合物的废水可以通过注入回收到储存器中。

    PROCESS, METHOD, AND SYSTEM FOR REMOVING MERCURY FROM FLUIDS
    20.
    发明申请
    PROCESS, METHOD, AND SYSTEM FOR REMOVING MERCURY FROM FLUIDS 有权
    从流体中去除汞的方法，方法和系统

    公开(公告)号：US20160332108A1

    公开(公告)日：2016-11-17

    申请号：US15155842

    申请日：2016-05-16

    Applicant: Chevron U.S.A. Inc.

    Inventor： Dennis John O'Rear ,  Wei Wang

    IPC: B01D53/14

    CPC classification number: B01D53/1493 ,  B01D53/1406 ,  B01D53/1425 ,  B01D53/64 ,  B01D53/78 ,  B01D53/96 ,  B01D2251/108 ,  B01D2251/50 ,  B01D2252/20 ,  B01D2252/202 ,  B01D2252/205 ,  B01D2252/40 ,  B01D2256/245 ,  B01D2257/602 ,  B01D2258/0283 ,  C10L3/101

    Abstract: Elemental mercury is removed from a gas by contacting it with a halogen dissolved in an organic solvent. The mercury accumulates in the organic solvent and can be removed by extraction with an aqueous solution with a complexing agent, by adsorption, and by combinations. The absorption process can also operate by use of a series of absorbers which have successively higher concentrations of halogen in the solution and which successively remove more the mercury from the gas. A portion of the solvent in the last absorber can be cascaded to the previous absorber in the series. In one embodiment, the process is carried out at a temperature of absorber at less than or equal to 28° C. above the higher of the water dew in point and the hydrocarbon dew point. The mercury waste from the process is produced as either an aqueous solution or a small volume of mercuric sulfide.

    Abstract translation: 通过使其与溶解在有机溶剂中的卤素接触，从气体中除去元素汞。 汞积聚在有机溶剂中，可以通过用络合剂的水溶液萃取，通过吸附和组合除去。 吸收过程也可以通过使用一系列在溶液中具有连续较高浓度的卤素并且连续地从气体中除去更多汞的吸收剂来进行操作。 最后一个吸收器中的溶剂的一部分可以串联到先前的吸收体。 在一个实施方案中，该方法在低于或等于28℃的吸收剂的温度下进行，高于高于水露点和烃露点。 来自该方法的汞废物以水溶液或少量硫化汞的形式产生。

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