Рассматриваются основные результаты оценки аэродинамического сопротивления слоя катализаторной засыпки процессов паровой конверсии углеводородов, а также установок, реализующих процесс термохимической регенерации теплоты отходящих газов. Представлены эмпирические зависимости различных авторов для определения коэффициента сопротивления. Установлено что соотношения (10-12) наиболее адекватно описывают гидродинамическую картину протекающих процессов, поскольку удельное сопротивление, вычисленное по ним находится в диапазоне 25-26 кПа/м, что соотноситься с показателями промышленных агрегатов, эксплуатируемых в схожих гидродинамических режимах (сопротивление составляет 18-31 кПа/м).
The main results of the aerodynamic resistance estimation of the catalyzing backfill of processes hydrocarbons steam reforming, and also units which implementing the process of thermochemical regeneration of the exhaust gases are considered. Empirical dependences of various authors are presented for determining the resistance coefficient. Expressions which is the most adequately describe the hydrodynamic picture of the ongoing process are determined. The calculated specific resistance is in the range of 25-26 kPa/m, and correlates with indicators of industrial units operated in similar hydrodynamic modes (resistance is 18-31 kPa/m).
The main results of the evaluation of the technical and economic indicators of power plants based on internal combustion engines (ICE) that are integrated into the refinery process cycle are considered. The statistical processing of commercial offers has been carried out, which allow to evaluate capital investments in the main power equipment. The results of the calculation for the operating conditions of the power plant on its own gas of refining showed a good investment attractiveness of the project. The calculations found that the influencing factors can be ranked in descending order of importance: the cost of electricity, the rate of discount, capital investments in the object, the fee for the power supported for the reserve from the power system. Since the generator voltage of the internal combustion engine is 0.4 kV, the economic efficiency of the proposed power plant will be higher than the considered base case and it is advisable to produce electricity supply in the factory network on the low voltage side.
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