Experimentally Calculated Study of the Effectiveness on the Process of Non-Catalytic Synthesis of Biodiesel in Reactors of Various Typeстатья
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Дата последнего поиска статьи во внешних источниках: 15 декабря 2021 г.
Аннотация:It was experimentally established that the dependence of the partial pressure of methanol
on the molar fraction of methanol in oil shows a pronounced negative deviation from Raoul’s law,
which significantly changes the idea of the influence of a large excess of methanol during non-catalytic
synthesis of biodiesel. The efficiency of use of a molar excess of methanol is reduced as it grows,
and with a more than 10-fold molar excess of the amount of reacted methanol, is practically constant.
The comparison of biodiesel production processes in the range 220–235 °C showed that a slight
change in the process temperature more effectively affects the biodiesel yield than an increase in
the molar excess of methanol. A mathematical model of the process of transesterification of rapeseed
oil in reactors of various types (batch and tubular reactors) is developed. A satisfactory correlation
between the experimental and calculated data was observed. The calculation showed that the rate
constants of the reverse reactions at 230 °C were not significant.