CATALYTIC
DEWAXING
OF DIESEL FUEL

Production of winter diesel fuel with a filterability temperature of -35 °C and a freezing point of -50 °C

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MAN PROBLEMS
OF DFP PRODUCTION

1 Most units located on the territory of the Russian Federation perform simple atmospheric fractioning of oil and SGC, without changing the composition of hydrocarbons.
2 Diesel fractions usually contain a lot of paraffins, which leads to a high temperature of solidification of diesel fuel and makes it unsuitable for use at low temperatures
3 DF provides profitability of production, but when trying to produce a winter diesel fuel, its losses reach 50%. Therefore, to date, a simple distillation of oil and SGC at atmospheric units is low-profitable.

THE PROCESS OF CATALYTIC DEWAXING ALLOWS OBTAINING QUALITY PRODUCTS

каталитическая депарафинизация
To reduce the pour point of the DF, it is necessary to remove n-paraffins from its composition. This goal is achieved through catalytic dewaxing.
каталитическая конверсия углеводородов
The technological process is based on the catalytic conversion of hydrocarbons to obtain the maximum quantity of high-quality light products. Previously, these processes were used only in large state-owned enterprises.
сырье для переработки
Any hydrocarbon with a boiling point of 140-360 °C (light fuel oil, furnace fuel, heavy diesel, paraffins, low-viscosity marine fuel, etc.) can be used as raw material for processing.

HOW THE PROCESS
OF CATALYTIC DEWAXING IS CARRIED OUT

TECHNOLOGICAL PROCESS OF CATALYTIC CONVERSION OF HYDROCARBONS IS CONDUCTED AT CONVENTIONAL ATMOSPHERIC PRESSURE USING DEPRESSOR CATALYST ON THE BASIS OF HIGH-SILICONE MOLECULAR SIEVE

Депарафинизация
Dewaxing is the process of removing of normal paraffin hydrocarbons from kerosene gas oil and oil fractions.
реакции каталитического крекинга
In the dewaxing process, the catalytic cracking and isomerization of long chain n-paraffins occur simultaneously.
крекинг и изомеризация молекул
In the process of cracking and isomerization, the molecules branch out and shorten without changing composition, but with a decrease in the molecular weight, which leads to a decrease in the freezing point of the DT.
каталитический крекинг н-парафинов

DIESEL FUEL RECEIVED BY THIS TECHNOLOGY HAS:

свойство дизельного топлива
LOW FREEZING POINT (TO -50 °C)
свойство дизельного топлива
HIGH FLASH TEMPERATURE (58-62 °C)
свойство дизельного топлива
LOW TEMPERATURE OF FILTERING (FROM -35°C)
свойство дизельного топлива
LESS SULFUR AND RESIN CONTENT

DSOYUZ DB HAS DEVELOPED MODULAR UNITS OF OIL RE-REFINING
BASED ON CATALYTIC CRAKING PROCESSES

INNOVATIVE SOLUTIONS OF SOYUZ DB ALLOW PERFORMING THE PROCESS OF CATALYTIC DEWAXING IN CONVENTIONAL CONDITIONS AND EFFECTIVELY PRODUCING OF WINTER DIESEL FUEL ON MOBILE INSTALLATIONS OCCUPYING THE MINIMUM AREA.
SOYUZ DB EQUIPMENT IS CERTIFIED IN ACCORDANCE WITH THE RUSSIAN LEGISLATION AS AUXILIARY EQUIPMENT IMPROVING THE QUALITY OF HYDROCARBON RAW MATERIALS. IT DOES NOT REQUIRE LICENSING AND ACCOUNTING AT ROSTEKHNADZOR.
INTRODUCTION TO THE PRODUCTION OF HIGH-TECH AND ECONOMIC CATALYTIC PROCESSES COMPLETELY SATISFIES THE GROWING MARKET NEEDS IN LOW-FREEZING DF.
The dewaxing units for obtaining of winter/arctic diesel fuel
ARKTIKA

ARCTIC
Catalytic dewaxing
of Dieasel Fuel

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