3results about "Petroleum wax refining" patented technology

This utility model discloses a dewaxing device for lubricating oil base oil, including a preheating tank, a primary cooling tank and a secondary cooling tank sequentially arranged at the rear end of the preheating tank, and a filter box arranged at the rear end of the secondary cooling tank; the upper end of the preheating tank is provided with an oil inlet and an additive inlet, and a heat exchange tube for heating the preheating tank is arranged around its outer wall; the primary and secondary cooling tanks are respectively provided with oil delivery pipes for conveying base oil, and a first coolant tank and a second coolant tank are respectively connected to the primary and secondary cooling tanks for cooling the base oil in the oil delivery pipes; the filter box is provided with a vibrating screen and a filter plate for filtering the cooled base oil, a vibrating motor is provided at the bottom of the vibrating screen, and an oil outlet pipe is provided at the bottom of the filter box; the device also includes a PLC controller. This utility model improves the dewaxing effect and realizes wax recovery.

The application discloses a multi-working-condition heating furnace combustion stabilizing system and method, wherein the acid gas of each device is mixed into an acid gas desulfurization tower through first to fourth adjusting valves for desulfurization; after the dry gas is refined, part of the dry gas is sent to a downstream device, and the other part of the dry gas is mixed into a first fuel gas distribution tank through a seventh adjusting valve and a No. 3 density instrument, and is mixed with pipe network fuel gas through a No. 2 density instrument and an eighth adjusting valve; a No. 1 density instrument monitors the density of the mixed fuel gas; the seventh and eighth adjusting valves cooperatively control the pressure and the density in the tank; through acid gas collection, desulfurization, dry gas refining and fuel gas mixing control, the parameters of the first fuel gas distribution tank are stabilized; the application eliminates the safety hazards of the heating furnace caused by pipe network fluctuation, reduces the comprehensive energy consumption of the device, has high automation degree, has a flexible process flow and is suitable for various oil refining devices with dry gas desulfurization units.

This invention provides a method for preparing rubber protective wax, comprising the following steps: refining ketone-benzene triple-oiled wax and ketone-benzene quadruple-oiled wax with bleaching clay to obtain triple-oiled wax blending raw material oil and quadruple-oiled wax blending raw material oil; blending the triple-oiled wax blending raw material oil and quadruple-oiled wax blending raw material oil, followed by static mixing, to obtain a first oil product; circulating the first oil product to obtain a second oil product; allowing the second oil product to settle and removing water to obtain a third oil product; and molding the third oil product to obtain rubber protective wax. The ketone-benzene triple-oiled wax and quadruple-oiled wax used in this invention are refined with bleaching clay to remove unsuitable components for rubber protective wax from the raw materials. After being blended using a precisely controlled proportioning system, the produced rubber protective wax product exhibits superior performance and meets the requirements of NB / SH / T 0871-2021.