coker gasoline
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I would like to ask everyone: what are the properties and characteristics of coker gasoline? How to alleviate coking, and what specific measures can be taken? What are the reasons for the increase in pressure drop across the reactor bed? Thank you
Coker gasoline has a high content of olefins, poor stability, and a low octane rating; it is similar to atmospheric gasoline
Coker gasoline has a high content of olefins, poor stability, and a low octane rating; it is similar to atmospheric gasoline
Coker gasoline has a high content of olefins, poor stability, and a low octane rating. It is generally used as feedstock for ethylene cracking after hydrogenation; some companies also use it in small amounts as a component in reforming processes. Some dienes cause coking in the reactor bed, which leads to an increase in pressure drop in that bed
Heavy oil or residue produced during the refining of crude oil can be subjected to deep thermal cracking at around 500°C, which allows it to be decomposed into gases, liquids, and coke. Coking gasoline can be obtained by distilling this liquid and separating the fraction with a boiling range from the initial boiling point to 205(215)°C. This type of gasoline has a low motor octane rating (around 60 MON) and poor stability (bromine number of 40–60); it generally needs to be refined through hydrogenation in order to remove nitrogenous and sulfur-containing compounds as well as dienes, before it can be used as a component in motor gasoline or as a raw material in the petrochemical industry for the production of ethylene.
Olefins and diolefins are present in high amounts; during storage, they tend to react with oxygen in the air, forming gums. Direct hydrogenation of the feedstock, without the need for storage or transportation, can help prevent catalyst coking!