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How do catalytic devices increase yield? Reduce losses?

2009-02-16View Original

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Recently, the yield of my setup has been low with significant losses. Does anyone have any good suggestions?
Reply #22009-02-16
1. Select an appropriate catalyst based on the properties of the raw materials; 2. Select appropriate operating conditions based on the properties of the raw materials ; 3. Check whether the flare valve is leaking ; 4. Measurement must be accurate ; 5. Check whether the safety valve is leaking.
Reply #32009-02-16
1. Optimize raw material blending. 2. Increase catalyst consumption to enhance catalyst activity. 3. Add bottom-of-column cracking aids. 4. Slightly reduce the reaction temperature. 5. Select an appropriate type of catalyst
Reply #42009-02-16
The yield of a device generally refers to the yield of the material that can be used as a product, or what is known as the overall product yield. A catalytic unit generally refers to the sum of the yields of gasoline, diesel, liquid hydrocarbons, and oil slurry. The yield of the catalytic unit is influenced by the properties of the feed oil, the catalyst, and operating parameters. The lost portion is mainly converted into dry gas and coke, as well as through human-induced losses. After avoiding human-induced losses, to increase the yield, it is necessary to adjust and optimize the operating parameters based on the properties of the raw materials and catalysts, in order to minimize the generation of dry gas and coke.
Reply #52009-02-16
I’m not sure to what extent the yield on the first floor is low, or by how much it differs from the original yield. I also wonder if the properties of the raw materials are stable. If the difference is significant and the properties of the raw materials are unstable, I think it’s more likely that the properties of the raw materials are the cause. It’s hard to say how the operation affects the yield; this depends on the determination of operational parameters as well as the precision with which the operators perform their tasks. As for catalysts, there is no catalyst that can be used with any type of raw material; if the properties of the raw material are unstable, it is recommended to focus on adjusting the composition of the raw materials
Reply #62009-02-17
Thank you all! Now the yield has improved, mainly because the previous production parameters were not changed; the dew point of diesel was kept low, at no more than 5 degrees, which is why the temperature couldn’t be increased! Now, the light oil yield can reach 72.5%!
Reply #72009-02-17
1. Select optimal raw materials, catalysts, additives, process operating conditions, and operation plans. . . Use more slag when the quality of the wax oil is good. . . (With the exception of eating regular residues directly) 2. When it is not possible to choose the raw materials, select the catalyst and processing method that are optimal. . . 3. Improve the energy recovery system. . . Save energy and reduce consumption. . . 4. Ensure the recycling of heat sources at low temperatures. . . Save energy consumption in every area. . . 5. For rotating equipment and automatic control systems that can use frequency conversion for regulation, control via control valves should be eliminated as soon as possible. . . Promote variable-frequency control technology. . . 6. For stable positions, deep stabilization techniques should be used as much as possible. . . 7. Optimize the absorption, desorption, and reabsorption processes to reduce dry gas production. . . :lol
Reply #82009-02-26
Regarding catalysis, in my opinion, the raw materials determine the products produced, and what corresponds to that is the issue of yield. Generally, the equipment doesn’t have such or such problems; the properties of the raw materials are the key factor. After all, catalysis is a mature technology.
Reply #92009-02-26
Improving yield: 1. Control the amount of slag used appropriately to minimize the amount of slurry that needs to be reprocessed. 2. Under the premise of meeting the production requirements, use catalysts with strong resistance to metal contamination and good selectivity for coke. 3. Select a metal passivator suitable for this device, and control the appropriate injection amount based on the hydrogen content in the dry gas. 4. Select a feed nozzle with good atomization performance based on the properties of the feed, and control the feed temperature and gas-liquid ratio. 5. Improve gas performance. 6. Improve the oil-agent contact effect in the feed section of the riser. 7. Dry gas lift is used to reduce steam consumption. Reduce losses: 1. When calculating losses, take into account the impact of nitrogen content on processing losses. 2. Reduce downtime for maintenance, equipment repairs, and material losses in pipeline systems. 3. Reduce metering losses; correct whatever needs to be corrected.
Reply #102009-02-26
Select an appropriate catalyst based on the properties of the raw materials. If the content of residual carbon and gum is high, consider deasphalting first. Increase the pipeline speed, adjust the agent-to-oil ratio, and check whether the centrifugal separation is working properly. Full reflux.
Reply #112009-02-27
It is mainly the raw materials, followed by catalysts, with operational issues being secondary
Reply #122009-03-01
The raw materials are crucial, but there is still a need for optimization in the operation process; for example, the reaction temperature should not be too high, and the amounts of dry gas and coke produced need to be optimized. The boundary control is appropriate; there is no oil leakage nor water contamination, and the amount of coke produced is adjusted based on the main air volume

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