Raw material analysis
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This post was last edited by 103388716 on 2017-3-14 at 16:14. What are the main products formed from the four components of crude oil: saturated hydrocarbons, aromatics, asphaltenes, and resins? How can these numerical values be used to determine the quality of crude oil?
Learn a bit; that original poster knows!
This is an analysis of the elemental composition of crude oil. Saturated hydrocarbons are divided into saturated alkanes and cycloalkanes; they are generally separated into various products based on their molecular weight. Aromatic hydrocarbons are usually converted into diesel or coke, while asphaltenes and resins are typically turned into coke. It is recommended to read Chen Junwu’s book on catalytic cracking processes and engineering, which provides information on the precursors of various products resulting from cracking
In current device analysis, density and residual carbon can to some extent reflect the quality of the raw material, but this approach is somewhat one-sided. A more thorough understanding of the raw material can be achieved by considering its four components; the higher the content of saturated hydrocarbons in the raw material, the higher the yields of liquefied gas and gasoline in the products. Some of the aromatic hydrocarbons can end up in the gasoline fraction, but in small quantities, while most of them are converted into diesel. This is mainly due to dehydrogenation reactions that produce heavier oil sludges or coke. At high temperatures, resins undergo cracking, and a portion of them can yield light oils, though again in small amounts. Asphaltene essentially converts into coke. These are just my personal insights; please feel free to correct me!
This post was last edited by Refiner on 2018-1-6 09:09. I have organized it; take a look to see if it’s useful to you. https://bbs.hcbbs.com/home.php?m ... 8&do=blog&id=777289
There are descriptions in the Q&A on catalytic cracking technology regarding the products corresponding to the four types of feedstocks; relevant documents are available on the forum and can be downloaded for review!
Can your company analyze the specifications of the above raw materials on its own, as mentioned by the poster?
Most of the saturated hydrocarbons were converted into end products, half of the aromatic hydrocarbons were converted into end products, and most of the resinous asphaltenes coked. For reference only, ya