A question regarding the reaction temperature in coking
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Today, I came across an analysis in two documents regarding the impact of reaction temperature on product yield. One book is titled \"Q&A on Delayed Coking Technology: Increasing the reaction temperature raises the yield of light oil, reduces wax oil, increases dry gas, and decreases coke.\" I don’t know the title of the other book; it was also published by a reputable publisher. Increasing the reaction temperature increases the yield of dry gas and coke, while reducing the yield of light oil. I can’t remember the details. I would like to ask the experts here: what exactly is the impact of increasing the reaction temperature on the yields of various products? ?
I think the Q&A on coking technology is reliable; it would be good to check as well which publisher published the later one Who wrote it? Some experts on certain books are not specialists in oil refining.
Coking Technology Q&A is the worst book of its kind I have ever seen. The reason isn’t mentioned; you have to see for yourself.
The two views are not contradictory; the first view refers to gasoline and diesel, while the second view refers to gasoline, diesel, and wax； As is well known, by appropriately increasing parameters such as the reaction temperature, circulation ratio, and system pressure in coking, the yield of liquefied gas, gasoline, and diesel increases, while the yield of dry gas and coke increases and the amount of wax oil decreases; this reflects the correctness of the first and second viewpoints regarding liquid yields ； So, what is the reaction temperature at which the coke yield is at its lowest, and where is the liquid yield highest? The two views are not contradictory; for example, compared to 495 degrees at the furnace outlet, at which temperature does the coke yield decrease when other operating conditions remain the same (480 degrees)? At 505 degrees and 520 degrees (with the same other operating conditions), at which temperature is the coke yield lower? Everyone should understand very well now: both of these seemingly contradictory viewpoints are correct and reasonable, they just differ in their starting points.