What is slurry used for, and what is the theoretical loss in domestic oil refining?
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It is common to see statements such as: \"In the slurry market, driven up this week by rising international crude oil prices, suppliers have increased their willingness to purchase, downstream demand is gradually improving, and prices are rising steadily.\" ”May I ask, what is the use of oil slurry and who are its main users? Thank you. I also came across the statement that \"in the processing of sulfur-containing 180CST fuel oil in Shandong’s local refineries, the theoretical loss is around 187 yuan per ton.\" How is this theoretical loss calculated? Thank you
The slurry is mainly used to adjust fuel oils of grades 180 and 250; sometimes residue oil is added to it for use in coking units. It can also be used to adjust asphalt. I’m not quite sure about the situation regarding losses
The theoretical loss refers to the sulfur content in crude oil; any sulfur present results in a zero value in terms of output, and it is calculated in this way. For example, if the sulfur content is 0.3%, then one ton of crude oil contains 0.3% tons of sulfur. At a crude oil price of 5,000 yuan per ton, the loss amounts to 5,000*0.3% = 15 yuan
The loss price for M100 fuel oil used in Shandong’s local refineries is 50 yuan per ton. The price of fuel oil remains relatively stable, while the export price of the products has seen a slight increase; as a result, the refining costs are reduced. This view is for reference only； As for the technologies used domestically for catalytic slurry, **a lot of attention is paid to them as well. In aromatic extraction units, 45% of the polycyclic and polyaromatic hydrocarbons present in the catalytic slurry are used as rubber filler oils to remove asphalt; or they are sent to coking units, where the oil extracted serves as an ideal raw material component for catalysis and is fed back into the catalytic process. The yield of catalytic cracking slurry generally ranges from 5% to 9%. The solvents used in these extraction units are furfural and propane. China’s first aromatic extraction unit was installed at Anqing Petrochemical; there seems to be no such unit in use for rerefining oil at present.
Part of the catalyzed slurry is reprocessed, while another part is taken out of the plant as a product; the temperature is kept at no more than 100 degrees Celsius. It’s not entirely clear what exactly is done with it
Currently, all of our company’s slurry is fed into the coking unit!
180CST is a viscosity indicator
I have been reading some literature on asphalt recently, and I found that slurry is currently used mainly as fuel oil, but it can also serve as a component in asphalt blending.