METHOD FOR THE QUANTIFICATION AND CHARACTERIZATION OF CARBON IN SOILS

    公开(公告)号:US20240183837A1

    公开(公告)日:2024-06-06

    申请号:US18551018

    申请日:2022-03-14

    IPC分类号: G01N33/24 G01N1/44

    CPC分类号: G01N33/24 G01N1/44

    摘要: The invention relates to a method of characterizing and of quantifying carbon in a superficial deposit. The sample of the formation is subjected to heating in an inert atmosphere with at least six isothermal stages connected by a thermal gradient, the sample residue is subjected to heating in an oxidizing atmosphere, and the quantities of HC, CO and CO2 released during heating are measured. A ratio of the mineral carbon to the total carbon of the sample is determined, and the at least one of the organic carbon and mineral carbon content of the sample is determined according to this ratio: (i) by accounting for an estimated quantity of CO2 released by thermal cracking of the organic matter of the sample during heating in the inert atmosphere if the ratio is substantially non-zero; (ii) if the ratio is substantially zero and the mineral carbon content is zero.

    METHOD OF CHARACTERIZING ORGANIC HYDROCARBON COMPOUNDS CONTAINED IN A SOLID DEPOSIT OF A GEOTHERMAL PLANT

    公开(公告)号:US20220412945A1

    公开(公告)日:2022-12-29

    申请号:US17762764

    申请日:2020-09-10

    IPC分类号: G01N33/24 G01N5/04

    摘要: The present invention relates to a method of characterizing organic hydrocarbon compounds contained in a solid deposit of a geothermal plant, by measuring a quantity of organic hydrocarbon compounds released by a solid deposit sample during heating by pyrolysis according to a temperature sequence such that: from a temperature (T1) ranging between 50° C. and 120° C., the temperature of a rock sample is raised to a temperature (T2) ranging between 180° C. and 220° C. This temperature (T2) is then maintained for a predetermined duration. The temperature of the sample is raised to a temperature (T3) ranging between 330° C. and 370° C. This temperature (T3) is maintained for a predetermined duration. The temperature of the sample is thereafter raised to a temperature (T4) ranging between 630° C. and 670° C.

    METHOD FOR CHARACTERISING THE PRESENCE OF POLYMERS AND/OR QUANTIFYING POLYMERS IN A POROUS MEDIUM

    公开(公告)号:US20240230615A1

    公开(公告)日:2024-07-11

    申请号:US18561226

    申请日:2022-05-09

    IPC分类号: G01N33/24

    CPC分类号: G01N33/241

    摘要: The invention concerns a method of characterizing a polymer (Pol) in a porous medium (Mil), wherein at least the following steps are carried out:



    a) heating a porous medium sample (Mil), in an inert atmosphere, and continuously measuring a representative quantity of hydrocarbon compounds, a representative quantity of carbon monoxide and/or a representative quantity of carbon dioxide released,
    b) heating a residue of said sample in an oxidizing atmosphere, and measuring a representative quantity of carbon monoxide and a representative quantity of carbon dioxide released,
    c) comparing at least the quantities measured in steps a) and b) with reference parameters of a first polymer database (Pol),
    d) determining the presence or the absence of a polymer (Pol) in porous medium (Mil) from the measurement comparison made in step c) and/or quantifying polymer (Pol) in porous medium (Mil).

    METHOD FOR THE QUANTIFICATION AND CHARACTERIZATION OF CARBON IN SOILS

    公开(公告)号:US20240110906A1

    公开(公告)日:2024-04-04

    申请号:US18551229

    申请日:2022-03-14

    IPC分类号: G01N33/24 G01N31/12

    CPC分类号: G01N33/241 G01N31/12

    摘要: The invention relates to a method of characterizing and of quantifying carbon from a superficial deposit, wherein a sample of the deposit is subjected to heating in an inert atmosphere, the sample residue is subjected to heating in an oxidizing atmosphere, and quantities of HC, CO and CO2 released during heating, from which standard parameters TOC and MinC, and a ratio between mineral carbon and total carbon of the sample are determined, are measured. If the ratio is non-zero, the organic carbon content is equal to the sum of TOC and of a percentage of TOC ranging between 4 and 12%, and the mineral carbon content is equal to MinC minus this percentage of TOC. If the ratio is zero, the mineral carbon content is zero and the organic carbon content is equal to the sum of TOC and MinC.