PULSATION CRYSTALLISER Russian patent published in 2022 - IPC B01D9/02 

FIELD: petroleum industry.

SUBSTANCE: invention relates to the field of equipment for the petroleum refining industry and is intended for producing paraffin suspensions in the processes of deparaffination of oils and de-oiling of paraffins. The pulsation crystalliser comprises a vertical column-type body connected by a pipeline with a pulsation chamber. Located in the body are partitions with crossovers and partitions with nozzles adjacent to the body, wherein the alternation of partitions forms sections. The body is equipped with raw material and cooling agent supply and suspension removal fittings, the raw material supply fitting and one of the cooling agent supply fittings located in the lower part of the body are connected with the injector located inside the body, whereby the raw materials and part of the cooling agent are supplied into the inner volume of the body. The partitions with crossovers are equipped with turbulisers constituting elliptical protrusions located in the centre of the upper surfaces of the partitions, and the diameter of the flow section of the crossovers increases from the lower partition to the upper partitions. The partitions with nozzles are equipped with radial channels with a semicircular cross-section, extending from the centres thereof.

EFFECT: ensured high degree of paraffin extraction.

1 cl, 2 dwg