What is the impact of adjusting the amount of gas injected during the reaction and the amount of dilution steam on the product distribution?
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What is the impact of adjusting the catalyst reaction gas injection volume and the dilution steam volume on the product distribution? How does the partial pressure of oil and gas change? What is the impact on product distribution, gas yield, and product quality?
That big name and expert, please help answer – there will be a reward.
Which part do you mean by the amount of steam used for dilution? Is it the steam used for atomizing the crude oil?
It’s not atomized steam, but the dilution steam from the lift pipe.
It is not pre-heated steam, but dilution steam located in the middle of the lift pipe.
At a constant total pressure, if the amount of gas fed into the reactor is increased, the partial pressures of oil and gas decrease accordingly. The residence time of oil and gas in the reactor is reduced, which lowers the likelihood of secondary reactions; as a result, the liquid yield increases while the gas yield decreases in terms of product distribution. In terms of product quality, the final boiling point of the components in the distillation column is slightly higher than before the adjustment; to ensure product quality, the reflux rate should be increased accordingly to control the temperature
What is the dilution steam in the middle of the riser? We don’t have any; our riser only has pre-heating steam and nozzle atomization steam
As the oil and gas partial pressures decrease, the amount of coke formed during the reaction is reduced. To maintain a constant reaction pressure, it is necessary to increase the speed of the steam turbine. However, once the steam reaches the top of the distillation tower, it turns into acidic water, which causes the pressure in the distillation tower to drop. If the distillation tower is not adjusted, the components that rise upward will be heavier than before.