Discussion on the “delayed coking + hydrorefining” technology for coal tar
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At present, coal tar processing has become a very large industry in China, but there is still a significant gap between China’s separation technologies and level of concentration compared to those on the international stage. With the high prices of oil and hydrogen, the cost of hydrogenating the entire fraction of coal tar is very high. As a result, a process route has been developed in which the heavy components in coal tar are coked, while the light components are hydrogenated for modification. I would appreciate it if experts could share their insights on this matter. Delayed coking is part of the refining process.
Delayed coking has requirements regarding the Conradson residue value of the feedstock; the higher this value, the lower the liquid yield. High-temperature coal tar is not suitable for use in delayed coking processes. The price of pitch coke is not competitive compared to that of petroleum coke. Technically, medium and low-temperature feedstocks are feasible, but there are not many successful cases in China, and there are certain technical risks involved
What is the impact of coal tar blending on the delayed coking of heavy oil? I would like to ask, what should be paid attention to during the blending process?
We are currently also in the experimental phase of delayed coking of coal tar~~
Sure, let’s discuss it if we get the chance!
Sure, no problem; we can discuss the achievements of each company in this field~~
High-temperature coal tar yields high coke yields, while pitch coke is inexpensive. I’m not sure about the quality of the oil products after light-component hydrocracking Is there coal tar used in the delayed coking of heavy oil in China at present?
Where is your friend from? What is the company name? What type of coal tar delayed coking do you mainly handle? My phone number is 13523867301; I’m Huang Enfa from Henan Yongsheng Energy and Chemical Group. We can communicate
In China, the current approach is to use high-temperature coal tar combined with delayed coking. The yield of coke produced from high-temperature coal tar is too high, resulting in unsuitable costs; moreover, the asphaltene quality is not good. I would like to ask: how many of you here have experience with the hydrogenation of coal tar?
There is a strong demand to establish a self-created QQ group to prohibit the dissemination of information related to coal tar hydrogenation. Coal tar hydrogenation is a project that is currently quite popular, but it is not yet mature, and communication is needed! ! What do you all think?
Currently, many manufacturers in the market are engaged in the processing of medium-temperature coal tar. The specifications of the product obtained after such processing are quite similar to those of high-temperature coal tar. A few friends have also conducted small-scale experiments in the laboratory, and the results of delayed coking were fairly good