How to process oil slurry

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The oil slurry filtration system can be used to achieve the desolidification function. If there is a coking device, the desolidified oil slurry can be sent to the coking device for processing, or it can be burned directly as fuel oil.

1. Furfural extraction, separation and utilization The saturated hydrocarbon content in the raffinate is greater than 98%, the carbon residue is less than 0.04%, the acid value is less than 0.02, the total N is less than 10PPM, the S content is about 0.3%, and the C/H is 5.83. It is a high-quality catalytic cracking raw material that can expand the source of raw materials for catalytic cracking and improve the quality of catalytic cracking raw materials. The extracted oil mainly contains condensed ring aromatic hydrocarbons, alkyl aromatic hydrocarbons, gum and asphalt, etc., which are extremely useful chemical raw materials. Utilization of extracted oil: After recovering furfural from the extracted oil, it is cut into three sections and used separately.: 490°C fraction - used to produce heavy road asphalt. 2. Catalytic oil slurry optimization solvent deasphalting. The Heavy Oil Research Institute of the University of Petroleum developed this technology. After mixing part of the catalytic oil slurry into the vacuum residual oil, the C4 fraction is then used for solvent deasphalting. This allows the low molecular aromatic hydrocarbons and saturated hydrocarbons in the catalytic oil slurry to be used as raw materials for catalytic cracking along with the deasphalted oil, expanding the source of raw materials for catalytic cracking. ； The condensed ring aromatic hydrocarbons, asphaltenes and colloids in the catalytic oil slurry are used as high-quality asphalt blending components together with the deoiled asphalt. This technology has strong vitality and is easier to industrialize than the furfural extraction process because: 1. As long as the original solvent deasphalting device is slightly modified, the processing capacity can be increased, and the investment is definitely less than that of a new device. 2. Although the aromatic hydrocarbons extracted by furfural have a wide range of uses, the market needs to be developed, and there is no need to worry about the future of deoiled asphalt. With the development of highways in China, a large amount of high-grade road asphalt is imported every year. The development of this process has not only increased the asphalt output, but also improved the asphalt quality. 3. Blending various brands of fuel oil. The vacuum residue produced by various refineries in my country has a very high viscosity. The kinematic viscosity at 100°C is often above 500mm2/s, and even as high as 1,000 in some factories. mm2/s, it is inconvenient to use, has poor atomization, incomplete combustion, and the nozzle is easy to coke. Some manufacturers mix the catalytic oil slurry into the vacuum residual oil to reduce the viscosity of the heavy oil before leaving the factory. However, because the catalytic oil slurry contains about 1% of catalyst powder, these catalytic powders are silicates that cannot be burned. Almost all of them adhere to the furnace and tube walls, resulting in poor heat transfer effect. In order to reach a certain load, the only way to increase the furnace temperature is to increase the exhaust gas temperature significantly, and the user has to shut down the furnace frequently. However, if the catalyst powder is removed, the catalytic oil slurry is a good component for blending fuel oil. The Nanjing Refinery Research Institute once successfully developed a 20# furnace using the catalytic oil slurry with the catalyst powder removed. Fuel oil is used in the hydrocarbon reformer of Shanghai Wujing Chemical Plant instead of 0# diesel, which has resulted in huge economic benefits for both parties. Recently, Zhejiang Jiangnan Industry and Trade Group Co., Ltd. still uses the catalytic oil slurry that removes catalyst powder as the main body to develop 0# furnace fuel oil, which can replace 0# diesel for oil-fired boilers below 8 tons. The catalytic oil slurry with the catalyst powder removed is also the main raw material for blending marine oil for high-power marine diesel engines, which can greatly increase the value of the catalytic oil slurry.