Keywords: high sulfur coke, low sulfur coke, cost optimization, sulfur content
Logic: there is a huge gap between the domestic price of high and low sulfur petroleum coke, and the price adjusted with the change of the index is not equal proportion, the higher the sulfur content of the product, its price is often lower. Therefore, it is a better choice for enterprises to use different ratio of high sulfur coke and low sulfur products to reduce the purchase cost within the allowable range of indicators.
In 2021, the price of petroleum coke will be relatively high in recent years. For downstream enterprises, high price corresponds to high cost, that is, compressed operating profit. Therefore, how to optimize the cost will be an important factor affecting the operation of enterprises. Figure 1 shows the change and comparison of local petroleum coke price in recent years. We can intuitively find the relatively high price in 2021.
Figure 1 Price trend of petroleum coke over the years
Figure 2 shows the price chart of different types of domestic petroleum coke. The price of medium and low sulfur coke has a larger adjustment range and a wider adjustment range, while the price of 4# high sulfur coke has been kept at around 1500 yuan/ton with a small adjustment. Frequent and large price fluctuations are not what we want to see for downstream enterprises, especially the impact of superimposed cost pushing up. On the premise of ensuring product quality, reducing and optimizing cost has become a pain point for downstream petroleum coke enterprises.
Figure 2 Price chart of domestic petroleum coke of different models
Figure 3 shows the sulfur index and price changes obtained after the high sulfur coke with 5% sulfur content is mixed with low sulfur coke with 1.5%, 0.6% and 0.35% sulfur content respectively in different proportions. Because the content of high sulfur coke is an important factor to lower the cost, but it will increase the sulfur content in the product quality, it must be within the most appropriate index range. To find the optimal mix ratio to achieve cost optimization.
In figure 3, for selecting the abscissa of high sulfur coke ratio, so the ratio of three kinds of sulfur content in solution and final price are convergent, right down to the price line, on the right side of line up for the sulfur content, the intersection we considered equilibrium, we can see from figure 3 with 5% sulfur content and ratio of different sulfur content indicators of product, With the reduction of another product sulfur content index of equilibrium constant moves to the right at the same time, also in moving up, therefore, on the cost optimization of product selection and not choose the sulfur content of the highest and lowest sulfur content in different proportions of mixed, but according to actual needs, with relatively low price of high sulfur content of some products are mixed.
For example, we need petroleum coke with 2.5% sulfur content as the final index. In Figure 3, we can find that the optimal cost is about RMB 2550 / ton after the ratio of 30% petroleum coke with 5% sulfur content to 70% petroleum coke with 1.5% sulfur content. Without considering other factors, the price is about 50-100 yuan/ton lower than that of products with the same index in the market. Therefore, it is a good choice for enterprises to optimize the cost to mix products with different indexes under appropriate circumstances
Post time: Aug-24-2021