Advantages and disadvantages of using catalysis to recycle light oil at the bottom of the lift column
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Recently, we upgraded our equipment by adding two sets of gasoline reprocessing nozzles and two sets of diesel reprocessing nozzles below the riser (below the feed oil nozzles). What are the advantages and disadvantages of this modification? What is their meaning? Have you made such modifications? (Would light oil coming into contact with the high-temperature catalyst at the bottom of the riser cause excessive cracking, and affect the reaction between the feed oil and the catalyst?) I hope the experts can provide some guidance. Thank you!
This should be coordinated with the choice of catalyst.
I feel like it has something to do with the Product Market.
Installing a light oil nozzle below the feed oil nozzle in the riser helps to improve the quality of gasoline
It’s probably related to the processing procedures in your factory; currently, all factories are working to reduce the ratio of diesel to gasoline. I’m not sure why you need to reprocess gasoline Let’s take the chemical route to produce more liquefied gas
The key is to control the amount of reprocessing, as well as the catalyst conditions before it comes into contact with fresh feedstock, to ensure that the fresh feedstock vaporizes and reacts; otherwise, it will have the opposite effect. Early MTGs and recent LTAGs are just like that.
Teacher: Gasoline comes into contact with the high-temperature catalyst at the bottom of the lift pipe, and through this reaction liquefied gas and dry gas are produced. So how is the quality of gasoline improved?
What is reprocessed is regular gasoline, contaminated gasoline!
Teacher, are there any things to keep in mind? Will contact with the high-temperature catalyst at the bottom of the riser cause an increase in dry gas and coke formation?
Of course, this will lead to an increase in the production of dry gas coke. The light oil lift pipes and lift sections of the rapid cracking unit are equipped with precoolers to ensure minimal thermal cracking; moreover, the reaction temperature is quite low, I believe it’s 500 degrees. Is your unit based on paraffin oil catalysis?