Method and Apparatus for Determining Liquid-Solid Adhesion Work

    公开(公告)号:US20250020564A1

    公开(公告)日:2025-01-16

    申请号:US18713368

    申请日:2022-11-23

    Inventor: Norbert Nagy

    Abstract: The invention is a method for determining liquid-solid adhesion work, during which, in connection with a liquid cylindrically symmetric capillary bridge in fluid medium between an end portion having peripheral circular edge of a measurement element and a solid surface-to-be-tested by performing cylindrical symmetry-keeping modification on the capillary bridge determining (S110a) changes of interfacial areas of the capillary bridge and fluid medium, and of the capillary bridge and surface-to-be-tested, and by determining (S100) capillary force, determining (S110b) a total mechanical work corresponding thereto, determining (S120), for the cylindrical symmetry-keeping modification, based on the interfacial area changes, total mechanical work and liquid-fluid interfacial tension a difference value of the solid-liquid and solid-fluid interfacial tensions, and by subtracting that from the liquid-fluid interfacial tension, determining (S130) the liquid-solid adhesion work. The invention is, furthermore, an apparatus for determining liquid-solid adhesion work. (FIG. 1)

    Determining demulsifier performance

    公开(公告)号:US12072346B2

    公开(公告)日:2024-08-27

    申请号:US17550906

    申请日:2021-12-14

    CPC classification number: G01N9/00 C10G33/06 G01N1/40 G01N13/02 G01N33/2823

    Abstract: Tools, methods, and systems for evaluating a demulsifier performance from an emulsion mixture are described. The systems include a measuring instrument including a body with an open end, a cover attachable to the body, a sample holder sized to hold the emulsion mixture and to be received inside the body, the body and the cover define a sealable chamber; a sensor system positioned inside the sealable chamber an environmental control system positioned to enclose the sealable chamber; a data acquisition and processing system is in electronic communication with the sealable chamber, the sensor system, and the environmental control system. The sensor system includes a handle attached to and extruding from the cover of the measuring instrument; and a sensor loaded onto the handle, sized to be submerged inside the emulsion mixture of the sample holder, and operable to measure performance of the demulsifier.

    Method of estimating a line width of a nanoparticle line formed using a capillary tube, and related methods

    公开(公告)号:US11754483B2

    公开(公告)日:2023-09-12

    申请号:US17337070

    申请日:2021-06-02

    Applicant: XTPL S.A.

    CPC classification number: G01N13/02

    Abstract: A method of obtaining a numerical model is disclosed. The numerical model correlates estimated line width values to minimum pressure for gas bubble generation (MPGBG) values. An MPGBG value of each capillary tube in the reference group is measured for a liquid. A nanoparticle composition is deposited, under standard conditions, on substrate(s) from each respective reference capillary tube, to form nanoparticle lines. A line width of each of the nanoparticle lines deposited using each respective reference capillary tube is measured by a microscope apparatus. A numerical model that correlates estimated line width values to MPGBG values for the liquid is calculated.

    METHOD OF SCREENING FOR FOAMING AGENTS AND SURFACTANTS

    公开(公告)号:US20220381665A1

    公开(公告)日:2022-12-01

    申请号:US17334333

    申请日:2021-05-28

    Abstract: Methods of evaluating a surfactant may include ultrasonicating a mixture of oil, water, and the surfactant to form at least one of the following: a sub-macroemulsion, a macroemulsion phase or a combination of the aforementioned; separating the sub-macroemulsion from the macroemulsion phase; introducing the sub-macroemulsion into a foam container; performing a first automated phase identification of the sub-macroemulsion; introducing a gas into the sub-macroemulsion to generate a column of foam, where the column of foam has a height in the foam container; performing a second automated phase identification of the sub-macroemulsion; and measuring the height of the column of foam in the foam container. In these methods, the first and second automated phase identifications may be configured to quantify one or more liquid phases and a foam phase in the column.

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