Research of thermal destruction of aliphatic alcohols in pure state and dissolved in water

By the method of isothermal pressure increasing in a closed system starting temperatures (TS) of thermal decomposition of aliphatic alcohols (methanol, ethanol, 1-propanol and 1-butanol) in their water solutions depending on composition are obtained. Values of TS depending on composition (x) and num...

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Main Authors: T. A. Dzhapparov, A. R. Bazaev
Format: Article
Language:Russian
Published: MIREA - Russian Technological University 2013-12-01
Series:Тонкие химические технологии
Subjects:
Online Access:https://www.finechem-mirea.ru/jour/article/view/509
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author T. A. Dzhapparov
A. R. Bazaev
author_facet T. A. Dzhapparov
A. R. Bazaev
author_sort T. A. Dzhapparov
collection DOAJ
description By the method of isothermal pressure increasing in a closed system starting temperatures (TS) of thermal decomposition of aliphatic alcohols (methanol, ethanol, 1-propanol and 1-butanol) in their water solutions depending on composition are obtained. Values of TS depending on composition (x) and number of carbon atom (C) are described by the polynomial equation: 544.258 2 28.826 10 3 2 65.617 6.378 10 2 ( , ) 23.622 + − + ⋅ − T x N = x − x + ⋅ N N . It is shown that the rate of alcohol decomposition depends on temperature and concentration (in water-alcohol solution). To estimate rate of thermal decomposition of alcohols we used change of pressure of system in a unit of time at constant temperature and volume (closed system). Reaction rate constant was calculated by formula: dτ dp p k = 1 ⋅ , where k – reaction rate constant; p – pressure; τ – time; dp/dτ – rate of reaction. Values of kinetic and activation parameters of alcohol decomposition in the range of temperatures 583.15–663.15 К are estimated.
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spelling doaj.art-083b75f1810a465f88579f68aa2b737a2023-03-13T07:25:34ZrusMIREA - Russian Technological UniversityТонкие химические технологии2410-65932686-75752013-12-018642461265Research of thermal destruction of aliphatic alcohols in pure state and dissolved in waterT. A. Dzhapparov0A. R. Bazaev1Институт проблем геотермии ДНЦ РАН, Махачкала, 367003Institute of Problems of Geothermy, Daghestan Scientific Center RAS, Makhachkala, 367003 Republic of DaghestanBy the method of isothermal pressure increasing in a closed system starting temperatures (TS) of thermal decomposition of aliphatic alcohols (methanol, ethanol, 1-propanol and 1-butanol) in their water solutions depending on composition are obtained. Values of TS depending on composition (x) and number of carbon atom (C) are described by the polynomial equation: 544.258 2 28.826 10 3 2 65.617 6.378 10 2 ( , ) 23.622 + − + ⋅ − T x N = x − x + ⋅ N N . It is shown that the rate of alcohol decomposition depends on temperature and concentration (in water-alcohol solution). To estimate rate of thermal decomposition of alcohols we used change of pressure of system in a unit of time at constant temperature and volume (closed system). Reaction rate constant was calculated by formula: dτ dp p k = 1 ⋅ , where k – reaction rate constant; p – pressure; τ – time; dp/dτ – rate of reaction. Values of kinetic and activation parameters of alcohol decomposition in the range of temperatures 583.15–663.15 К are estimated.https://www.finechem-mirea.ru/jour/article/view/509temperature, pressure, solutions, concentration, thermal destruction, kinetic parameters
spellingShingle T. A. Dzhapparov
A. R. Bazaev
Research of thermal destruction of aliphatic alcohols in pure state and dissolved in water
Тонкие химические технологии
temperature, pressure, solutions, concentration, thermal destruction, kinetic parameters
title Research of thermal destruction of aliphatic alcohols in pure state and dissolved in water
title_full Research of thermal destruction of aliphatic alcohols in pure state and dissolved in water
title_fullStr Research of thermal destruction of aliphatic alcohols in pure state and dissolved in water
title_full_unstemmed Research of thermal destruction of aliphatic alcohols in pure state and dissolved in water
title_short Research of thermal destruction of aliphatic alcohols in pure state and dissolved in water
title_sort research of thermal destruction of aliphatic alcohols in pure state and dissolved in water
topic temperature, pressure, solutions, concentration, thermal destruction, kinetic parameters
url https://www.finechem-mirea.ru/jour/article/view/509
work_keys_str_mv AT tadzhapparov researchofthermaldestructionofaliphaticalcoholsinpurestateanddissolvedinwater
AT arbazaev researchofthermaldestructionofaliphaticalcoholsinpurestateanddissolvedinwater