Pre-treatment for delayed coking
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I recently came across a foreign project related to pretreatment in delayed coking; its literal translation in English is an deasphalting unit, and it is also known as a heavy metal removal unit. I wonder if there are similar units available in China?
Vacuum residue is extracted using propane, butane, or a mixture of C-4 solvents, resulting in the separation of deasphalted oil and asphalt; the deasphalted oil can be used as a feedstock for catalysis or hydrocracking, while the asphaltenes can be used as feedstock for coking. It is only known that there is a plant with a capacity of 80 Wt/a in Renqiu, Hebei, in operation. Shandong’s local refineries may also have similar projects.
Thank you for the answer from above. I don’t know which company’s process package it is? Is it domestic technology?
This technology is truly remarkable; it can be used as raw material for producing needle coke
Do you know whose technology it is? What are the achievements?
There are more and more types of treatments available, it’s amazing
What kind of ancient method is it? Could you give a detailed explanation? Whose technology is it? Are there any applications in China?
Was the first industrialization in the 1930s considered ancient? For detailed information, see Baidu Wenku -> “Liquid-Phase Deasphalting Lecture Notes”. There are various technologies such as DEMEX, ROSE, and LEDA; currently, there are twenty to thirty sets of such systems in China
May I ask which company’s technology this is, and what’s the current market situation?