Daqing refining technology transformation to improve paraffin production capacity

Up to now, after the technical transformation of the paraffin hydrogenation unit of Daqing Refining and Chemical Company, it has the ability to produce No.
70 semi-refined paraffin, and the main technical indicators such as product Cyport colorimetry, light stability, and penetration have met the design requirements, and the trial production has been successful
.

Paraffin hydrogenation plant is the core device of Daqing refining and chemical production of refined paraffin, the paraffin products produced have the advantages of white color, low oil content, no impurities, stable quality, etc.
, and have been recognized
by domestic and foreign markets for many years.
In order to optimize the product structure, enrich paraffin grades, and fill the market gap of No.
70 semi-refined paraffin, technicians began to start technical transformation work
.

This transformation is to add a pretreatment reactor at the front end of the hydrorefining reactor of the paraffin hydrogenation unit, which is used to increase the reaction temperature and pressure, use the protective agent to remove colloid, asphaltene and other recombinant components in the crude liquid wax, and further improve the color, smell, light stability and other indicators
of the product.
During the production process, technicians finely adjust key parameters such as material flow, heating speed and system pressure to prevent material coking caused by overtemperature and overpressure
.
In addition, considering that high melting point media are prone to freeze coagulation in winter, technicians have increased the inspection of heat tracing and freezing parts to ensure that the amount of heat trace steam is stable and the pressure is normal
.