REDUCTION OF CARBON DIOXIDE EMISSIONS IN THE PROCESS OF DIESEL FUEL CATALYTIC DEWAXING BY OPTIMIZATION OF THE PROCESS TEMPERATURE USING A MATHEMATICAL MODEL

СНИЖЕНИЕ ВЫБРОСОВ УГЛЕКИСЛОГО ГАЗА В ПРОЦЕССЕ КАТАЛИТИЧЕСКОЙ ДЕПАРАФИНИЗАЦИИ ДИЗЕЛЬНЫХ ТОПЛИВ ЗА СЧЕТ ОПТИМИЗАЦИИ ТЕМПЕРАТУРЫ ПРОЦЕССА С ПРИМЕНЕНИЕМ МАТЕМАТИЧЕСКОЙ МОДЕЛИ

Стр.40-44

DOI: 10.32758/2782–3040-2025-0-2-40-44

УДК 66.011

N. S. Belinskaya, R. D. Popov

(National Research Tomsk Polytechnic University, Russia)

Keywords: decarbonization, carbon dioxide, CO₂ emissions reduction, energy efficiency, dewaxing, diesel fuel.Abstract. Reduction of carbon dioxide emissions is one of the priorities for sustainable economic development. At present, the most feasible way to reduce carbon dioxide emissions is more efficient use of energy in technological processes. This work proposes a way to reduce carbon dioxide emissions at the stage of feedstock preheating in the furnace, which is located prior to the reactor at the industrial unit for diesel fuel catalytic dewaxing. The authors revealed that the process in the reactor is carried out at the temperatures that provide a large product quality giveaway (the cold filter plugging point of diesel fuel exceeds the requirements by 3 – 7 ^oC). Using a mathematical model, the optimal process temperatures were determined to ensure the production of diesel fuel with the required cold filter plugging point (–26 °C). Carrying out the process in the reactor at optimal temperatures provides reduction of fuel gas consumption in the furnace for heating of the feedstock and, thereby, reduces the emissions of carbon dioxide formed in combustion. It was shown that due to optimization of the process temperature, carbon dioxide emissions over the period of unit operation in the winter grade diesel fuel production mode (120 days) are reduced by 1 282 tons compared to carrying out the process at non-optimal temperatures.