Doklady Bashkirskogo Universiteta. . Volume . No. . pp. .

Literature


    Clustering problem in modeling the composition of a mixture of catalytic reforming of gasoline | Scientific journal "Doklady Bashkirskogo Universiteta"

    Error message

    • Notice: Undefined variable: secondary_menu in include_once() (line 90 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: logo in include_once() (line 92 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: site_name in include_once() (line 98 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: site_slogan in include_once() (line 98 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: main_menu in include_once() (line 126 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: secondary_menu in include_once() (line 143 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: messages in include_once() (line 162 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: featured in include_once() (line 168 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: breadcrumb in include_once() (line 176 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: sidebar_first in include_once() (line 180 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: highlighted in include_once() (line 187 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: title in include_once() (line 190 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: tabs in include_once() (line 204 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: action_links in include_once() (line 210 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 225 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 240 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 240 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 240 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 240 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 240 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 243 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 243 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 243 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 243 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 243 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 243 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 243 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 243 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 247 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 247 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 256 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 256 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 257 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 257 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 267 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 414 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 414 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 461 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 461 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 479 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 479 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 519 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 519 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Warning: Invalid argument supplied for foreach() in include_once() (line 519 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 531 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 531 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 531 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: node in include_once() (line 531 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Trying to get property of non-object in include_once() (line 531 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined variable: feed_icons in include_once() (line 538 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: sidebar_second in include_once() (line 542 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: triptych_first in include_once() (line 550 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: triptych_middle in include_once() (line 550 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: triptych_last in include_once() (line 550 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: footer_firstcolumn in include_once() (line 560 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: footer_secondcolumn in include_once() (line 560 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: footer_thirdcolumn in include_once() (line 560 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: footer_fourthcolumn in include_once() (line 560 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).
    • Notice: Undefined index: footer in include_once() (line 569 of C:\inetpub\wwwroot\dokbsu.ru\themes\bartik\templates\page--art.tpl.php).

    Clustering problem in modeling the composition of a mixture of catalytic reforming of gasoline

    Doklady Bashkirskogo Universiteta. 2021. Volume 6. No. 5. pp. 302-306.

    Authors


    Alekseeva V. A.*
    Ufa State Petroleum Technological University
    1 Kosmonavtov Street, 450064 Ufa, Republic of Bashkortostan, Russia
    Koledina K. F.
    Ufa State Petroleum Technological University; Institute of Petrochemistry and Catalysis of the UFIC RAS
    1 Kosmonavtov Street, 450064 Ufa, Republic of Bashkortostan, Russia; 141 Prospekt Oktyabrya, 450075 Ufa, Republic of Bashkortostan, Russia

    Abstract


    The article is devoted to the study of the analysis of octane numbers of hydrocarbons of the process of catalytic reforming of gasoline by clustering methods in the Python system. It is known that a large number of individual hydrocarbons (up to 300 different components) are present in catalytic reforming. Which significantly complicates the simulation. Therefore, they are grouped together. For groups, it is necessary to determine the characteristics - octane numbers in the first place. To do this, it is necessary to group hydrocarbons according to the values of octane numbers. To do this, we will use the clustering task. The task of splitting a given sample of objects into disjoint subsets, called clusters, so that each cluster consists of similar objects, and the objects of different clusters differ significantly. To solve this problem, we will use the clustering problem with two machine learning algorithms, this is the hierarchical clustering algorithm and the K-Means algorithm.

    Keywords


    • catalytic reforming
    • clustering algorithms
    • hierarchical