Catalytic oil slurry problems

Oil slurry refining does not require precipitation of catalyst fines. One of the purposes of oil slurry refining is to reduce the solid content of the oil slurry. When the oil slurry is used as fuel or delayed coking raw material, it must be settled or filtered. The settled fine powder is probably treated as waste.

Catalytic oil slurry refining cannot settle. Oil slurry refining causes the raw material to enter the oil slurry pump outlet valve group. After oil slurry refining, the catalyst fine powder carried in the oil slurry will enter the reaction system and be separated from the oil and gas in the settler.； When the oil slurry is thrown out to the tank area, special clarifiers or separation equipment are required to separate the fine catalyst powder.

Our catalytic oil slurry is not refined here, but is directly cooled and dumped to the irrigation area. However, the slurry clarification tank system can be used to recover catalyst fine powder. The fine powder is diluted with recycled oil, and then pressed with dry air to the raw oil tank, and mixed with fresh raw materials for recycling.

The oil slurry in the catalytic cracking unit is generally recycled into the riser. After the reaction, the catalyst part can be settled in the settler. The oil slurry that is thrown out generally goes to the downstream deasphalting unit, which has nothing to do with settlement.

The purpose of oil propeller refining: Recycle catalyst and adjust recycle ratio. Some units have used electrostatic separators in the past.

After filtration, it is thrown out to the coking or tank area, and the solids are returned to the refining tank.

There seems to be an indicator that if the oil slurry density is greater than 1, you can't return to practice and can only throw it out, right? Why?

The oil slurry is distilled through a vacuum device and then extracted with furfural to separate the catalyst, aromatic hydrocarbons, and saturated hydrocarbons in the oil slurry.

The catalyst powder in the oil slurry needs to settle, and it can be recycled if the density is less than 1.

The difference between using oil slurry settling agent and using filter Advantages of using filter: Stability Disadvantages: 1. Large one-time investment. 2. Sometimes abnormal shutdown occurs, which may be caused by clogging of the filter. Advantages of using oil slurry settling agent: 1. No equipment investment, simple operation. 2. The adding method is simple and the production process is flexible. 3. The added amount can be adjusted according to the changes in the properties of the oil slurry. 4. It can improve the quality of catalytic residual oil and bring more profits. 2. The purpose of using oil slurry settling agent is to achieve carbon black raw materials, high-quality coke raw materials, hydrocracking raw materials, and improve the quality of fuel oil. 3. The recommended dosage of oil slurry settling agent is selected based on the amount of catalyst input and the properties of the oil slurry. Generally, the recommended dosage is from 0.003% to 0.03%. 4. Conditions for using oil slurry settling agent 1. The temperature of the oil slurry is greater than 70 degrees. 2. The settling tank requires insulation facilities. 3. The settling time is greater than 24 hours. 5. Benefits of using oil slurry settling agent 1. Optimize the raw materials for hydrocracking and coking. 2. Improve the quality of fuel oil. 3. Improve the performance of fuel oil combustion and reduce the erosion of the nozzle. 4. Increase the settling speed of catalyst particles in the oil tank and reduce the settling time of the oil slurry. 5. Directly make raw materials for carbon black oil. 6. The raw material for needle coke can be produced by adding oil slurry settling agent to the oil slurry.

The catalytic oil slurry can also be solvent-deasphalted together with the residual oil, and then separated, which can also improve the catalytic feed. There is already research in this area, you can take a look

We installed the oil slurry without refining. In the past, the oil slurry was directly dumped to the tank area and used as fuel for takeaway. The oil slurry filtration system is currently being tested. The filtered oil slurry is sent to the power plant as fuel for heating furnaces. The only disadvantage of burning the filtered oil slurry is the high sulfur content.

The catalytic oil slurry has several uses. For example, if it is returned to the riser, it does not need to settle. The catalyst will continue to separate in the two vessels.； If the propylene removal device does not require sedimentation, it will not cause any problems if the catalyst enters the asphalt. ； However, when making needle coke or asphalt resin, it still needs to settle. This is related to the product requirements. Some fuel oil also needs to settle. The specific situation is different and cannot be generalized.

I am researching oil slurry settling agent. Does anyone know the manufacturer of oil slurry settling agent?

Generally, the sedimentation is not in the catalytic area, and the oil slurry is sent out to make coke, which will be processed by downstream devices.

Shanghai Jinshan Xinling Company is a manufacturer of oil slurry settling agents.

It depends on the solid content of the oil slurry. If it is too high, it must be dumped, otherwise the oil slurry refining line will be worn through and the gain will outweigh the loss. If it is not high and within the index range, there is no need to settle and it can be refining directly.

For refining, there is no need to settle directly for refining, or the oil slurry tank can be dumped externally. If it enters other production equipment, whether it will settle will be determined according to product requirements.

The catalytic oil slurry can be made into asphalt. Now we send the oil slurry to coking to further separate gasoline and diesel, and the rest is coke.

Hello, this is the first time I have heard of this method of refining. I wonder what the economic benefits are? Because the fine powder that can escape from the reactor cyclone is very fine, will there be secondary loss after recycling?