Method for detecting coal quality using Raman spectroscopy

    公开(公告)号:US10670529B2

    公开(公告)日:2020-06-02

    申请号:US16247544

    申请日:2019-01-14

    IPC分类号: G01J3/44 G01N21/65 G01N33/22

    摘要: A method for detecting coal quality, including: selecting a plurality of standard coals, acquiring Raman spectral characteristic parameters of each standard coal and characteristic parameters of coal quality components of each standard coal, calculating a mapping relationship between the Raman spectral characteristic parameters and the characteristic parameters of the coal quality components of each standard coal, to establish a relational database of the Raman spectral characteristic parameters and the characteristic parameters of the coal quality components; providing coal to be analyzed, conducting Raman spectroscopy on the coal to yield Raman spectrum of the coal, and performing curve-fitting calculation on the Raman spectrum of the coal to obtain Raman spectral characteristic parameters of the coal; and comparing the Raman spectral characteristic parameters of the coal with the Raman spectral characteristic parameters of the relational database.

    METHOD FOR DETECTING COAL QUALITY USING RAMAN SPECTROSCOPY

    公开(公告)号:US20190154585A1

    公开(公告)日:2019-05-23

    申请号:US16247544

    申请日:2019-01-14

    IPC分类号: G01N21/65 G01N33/22

    摘要: A method for detecting coal quality, including: selecting a plurality of standard coals, acquiring Raman spectral characteristic parameters of each standard coal and characteristic parameters of coal quality components of each standard coal, calculating a mapping relationship between the Raman spectral characteristic parameters and the characteristic parameters of the coal quality components of each standard coal, to establish a relational database of the Raman spectral characteristic parameters and the characteristic parameters of the coal quality components; providing coal to be analyzed, conducting Raman spectroscopy on the coal to yield Raman spectrum of the coal, and performing curve-fitting calculation on the Raman spectrum of the coal to obtain Raman spectral characteristic parameters of the coal; and comparing the Raman spectral characteristic parameters of the coal with the Raman spectral characteristic parameters of the relational database.

    Boiler design method and system for supercritical carbon dioxide unit, and storage medium

    公开(公告)号:US11341300B1

    公开(公告)日:2022-05-24

    申请号:US17561983

    申请日:2021-12-26

    摘要: A boiler design method and system for a supercritical carbon dioxide unit, and a storage medium are provided. The boiler design method includes the following steps: step 1, determining a boiler type, known design parameters and unknown design parameters of boilers to be designed; step 2, acquiring operating parameters of each selected supercritical carbon dioxide unit respectively, and establishing a relational expression among a plurality of operating parameters in the operating parameters of each supercritical carbon dioxide unit respectively; and step 3, substituting the known design parameters in step 1 into the relational expression determined in step 2, and calculating the unknown design parameters. The operating parameters of the boilers, with the optimal performance, of the supercritical carbon dioxide unit are selected to establish the relational expression, and the determined operating parameters are substituted into the relational expression to calculate design parameters to be determined.