Separation of catalytic oil slurry
Thread Content
The separation of catalytic oil slurry can be solved through the extraction process. Can the saturated component and aromatic component be separated through a vacuum tower? We produce a lot of oil slurry, do you want to further process it?
The extraction process is used to separate the catalytic oil slurry, which is mainly achieved through the different solubility of the solvent to paraffins, naphthenes, aromatic hydrocarbons, colloids and asphaltenes. The vacuum tower separation is based on the different volatilities of light and heavy fractions. It improves the extraction rate by reducing the partial pressure of the fractions. It cannot separate saturated hydrocarbons from aromatic hydrocarbons. The current application of oil slurry deep processing is not very mature, mainly extraction: Aromatic hydrocarbons are extracted to make rubber filling oil, plasticizer, etc., and the residual oil is returned to catalytic processing. ； Processing by incorporating coking raw materials ； Make fuel oil ； Make needle coke raw materials (research stage).
1. A new catalytic oil slurry reaction separation method, characterized by: The method includes a resin synthesis process (raw materials, reaction temperature, reaction time, catalyst, cross-linking agent) and a resin refining process and curing conditions. The obtained resin undergoes four processes: liquid-solid extraction, centrifugal separation, vacuum drying, and grinding. The specific process of this process is as follows: 1) Add the catalytic oil slurry into the enamel reactor with a heating jacket and raise the temperature to 120-150°C. 2) Pour 5-10 liters/min of nitrogen into the reaction kettle. 3) Add terephthalol or paraformaldehyde (cross-linking agent) at a molar ratio of 1:0.8-1.5 (oil slurry/linking agent). 4) Add the catalyst p-toluenesulfonic acid at 5%-8% (weight) of the total amount. 5) Start the mixer to stir at 90-100 rpm. 6) Stop heating after 6-10 hours of reaction. Settling for 1 hour. 7) Separate the resin in the lower part of the reactor from the reacted oil. 8) The unreacted oil is put into the oil tank and sent to the catalytic cracking unit as raw material. 9) Perform solid-liquid extraction of the resin with light gasoline at 120-160°C. The solid resin is centrifuged, dried in vacuum, and then ground to 200 mesh. The extracted oil is recovered through distillation and recycled.