Conversion of alkanes under single pulse of hydrodynamic cavitation. I. Behavior of C<sub>13</sub>–C<sub>15</sub> alkanes
There are many different methods of petrochemical raw materials activation. This article discusses hydrocarbons mechanoactivation that helps to increase the yield of the key products. This effect shows itself most clearly in the n-alkanes distribution. The main purpose of this study is to attempt to...
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| Format: | Article |
| Language: | Russian |
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MIREA - Russian Technological University
2013-12-01
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| Series: | Тонкие химические технологии |
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| Online Access: | https://www.finechem-mirea.ru/jour/article/view/507 |
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| author | V. N. Torhovsky S. I. Vorobyev E. V. Egorova S. V. Ivanov S. N. Gorodsky |
| author_facet | V. N. Torhovsky S. I. Vorobyev E. V. Egorova S. V. Ivanov S. N. Gorodsky |
| author_sort | V. N. Torhovsky |
| collection | DOAJ |
| description | There are many different methods of petrochemical raw materials activation. This article discusses hydrocarbons mechanoactivation that helps to increase the yield of the key products. This effect shows itself most clearly in the n-alkanes distribution. The main purpose of this study is to attempt to learn whether the energy of a single pulse of cavitation occurring in a disintegrator DA-1 is enough for the destructive transformation of n-alkanes with the number of carbon atoms in the molecule less than 15 and for the formation of compounds with low molecular weights. It was shown that the total decrease in the concentration of reactants (monomethyltridecane, n-tridecane and n-pentadecane) is completely compensated by the higher content of n-tetradecane in the mixtures. The content of iso-alkanes, n-tridecane and n-pentadecane decreased. Other compounds did not appear in the mixtures after the impact of a single pulse of cavitation. It was shown that the energy of a single pulse of hydrodynamic cavitation released in DA-1 is insufficient for the large-scale break of the bonds between the secondary carbon atoms in the chains of C<sub>13</sub>–C<sub>15</sub> alkanes (mostly n-tetradecane, the content of which in the mixture was greater than 97%) and for the diffusion of radicals from the “cage” with the formation of compounds with low molecular weights. A similar effect can be expected especially in respect of n-alkanes having a fewer number of carbon atoms. A possible mechanism of the reversible isomerization reaction in the studied system is discussed in this article. |
| first_indexed | 2024-04-10T03:30:08Z |
| format | Article |
| id | doaj.art-bc2ea8f132864456881e40631f5ffee4 |
| institution | Directory Open Access Journal |
| issn | 2410-6593 2686-7575 |
| language | Russian |
| last_indexed | 2024-04-10T03:30:08Z |
| publishDate | 2013-12-01 |
| publisher | MIREA - Russian Technological University |
| record_format | Article |
| series | Тонкие химические технологии |
| spelling | doaj.art-bc2ea8f132864456881e40631f5ffee42023-03-13T07:25:34ZrusMIREA - Russian Technological UniversityТонкие химические технологии2410-65932686-75752013-12-018627361264Conversion of alkanes under single pulse of hydrodynamic cavitation. I. Behavior of C<sub>13</sub>–C<sub>15</sub> alkanesV. N. Torhovsky0S. I. Vorobyev1E. V. Egorova2S. V. Ivanov3S. N. Gorodsky4M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571I.M. Sechenov First Moscow State Medical University, Moscow, 119991M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571There are many different methods of petrochemical raw materials activation. This article discusses hydrocarbons mechanoactivation that helps to increase the yield of the key products. This effect shows itself most clearly in the n-alkanes distribution. The main purpose of this study is to attempt to learn whether the energy of a single pulse of cavitation occurring in a disintegrator DA-1 is enough for the destructive transformation of n-alkanes with the number of carbon atoms in the molecule less than 15 and for the formation of compounds with low molecular weights. It was shown that the total decrease in the concentration of reactants (monomethyltridecane, n-tridecane and n-pentadecane) is completely compensated by the higher content of n-tetradecane in the mixtures. The content of iso-alkanes, n-tridecane and n-pentadecane decreased. Other compounds did not appear in the mixtures after the impact of a single pulse of cavitation. It was shown that the energy of a single pulse of hydrodynamic cavitation released in DA-1 is insufficient for the large-scale break of the bonds between the secondary carbon atoms in the chains of C<sub>13</sub>–C<sub>15</sub> alkanes (mostly n-tetradecane, the content of which in the mixture was greater than 97%) and for the diffusion of radicals from the “cage” with the formation of compounds with low molecular weights. A similar effect can be expected especially in respect of n-alkanes having a fewer number of carbon atoms. A possible mechanism of the reversible isomerization reaction in the studied system is discussed in this article.https://www.finechem-mirea.ru/jour/article/view/507the c<sub>13</sub>–c<sub>15</sub> alkanes, cavitation, mechanical stresses, isomerization, cracking, free radicals, recombination, a random event, possibility. |
| spellingShingle | V. N. Torhovsky S. I. Vorobyev E. V. Egorova S. V. Ivanov S. N. Gorodsky Conversion of alkanes under single pulse of hydrodynamic cavitation. I. Behavior of C<sub>13</sub>–C<sub>15</sub> alkanes Тонкие химические технологии the c<sub>13</sub>–c<sub>15</sub> alkanes, cavitation, mechanical stresses, isomerization, cracking, free radicals, recombination, a random event, possibility. |
| title | Conversion of alkanes under single pulse of hydrodynamic cavitation. I. Behavior of C<sub>13</sub>–C<sub>15</sub> alkanes |
| title_full | Conversion of alkanes under single pulse of hydrodynamic cavitation. I. Behavior of C<sub>13</sub>–C<sub>15</sub> alkanes |
| title_fullStr | Conversion of alkanes under single pulse of hydrodynamic cavitation. I. Behavior of C<sub>13</sub>–C<sub>15</sub> alkanes |
| title_full_unstemmed | Conversion of alkanes under single pulse of hydrodynamic cavitation. I. Behavior of C<sub>13</sub>–C<sub>15</sub> alkanes |
| title_short | Conversion of alkanes under single pulse of hydrodynamic cavitation. I. Behavior of C<sub>13</sub>–C<sub>15</sub> alkanes |
| title_sort | conversion of alkanes under single pulse of hydrodynamic cavitation i behavior of c sub 13 sub c sub 15 sub alkanes |
| topic | the c<sub>13</sub>–c<sub>15</sub> alkanes, cavitation, mechanical stresses, isomerization, cracking, free radicals, recombination, a random event, possibility. |
| url | https://www.finechem-mirea.ru/jour/article/view/507 |
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