Impact of the hydrogen content in crude oil?
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When reading the technical Q&A on catalytic cracking units, there is a statement that says: “Hydrogen content is an important parameter that affects the cracking properties of feed oil.” The lower the hydrogen content, the lower the conversion rate. ” My understanding is that the cracking reaction is the main catalytic reaction, and the order of reactivity from highest to lowest is alkenes, alkanes, and aromatics. Aromatic hydrocarbons have the lowest hydrogen content; therefore, the lower the hydrogen content, the lower the conversion rate. I wonder if anyone has a better understanding; please share it.
I understand that in catalytic cracking reactions, hydrogen transfer occurs from the feed oil to target products such as gasoline, diesel, and LPG; these target products contain a high amount of hydrogen. Therefore, the lower the hydrogen content in the feed oil, the less hydrogen can be transferred, resulting in lower yields of the target products and a higher coking rate.