In the production of coal tar, by-product asphalt accounts for 55%. In recent years, the market price of bitumen has not gone up, and the market price of carbon black for carbon black production has been steadily rising. How to open the “gold mine” in low-priced asphalt and convert it into high-value carbon black oil? Faced with this problem that has plagued coal tar producers, as early as 2013, Wuhai Black Cat Carbon Technology Research and Development Center began a tough battle. After nearly a year, they successfully developed distillation negative pressure technology. The by-product bitumen in the coal tar industry chain becomes a raw material capable of producing high-end carbon black products. This not only improves the efficiency of the company, but also makes the entire industry chain smoother.
Coming to Wuhai Black Cat Black Company, Wang Hongwei, the director of the refining workshop, enthusiastically took reporters to the tar refinery area where the technical renovation was about to take place. He pointed to the large and small, low-level equipment in front of him and briefed reporters on the negative pressure of distillation. The benefits that technology applications will bring to companies: “Asphalt is a by-product of coal tar production, but it occupies a large proportion. Now our company produces more than 400 tons of asphalt every day, but the company can only consume more than half, and These asphalts can only be used as raw materials for the production of 3 series and 6 series low-end carbon blacks, and the rest can only be sold at low prices. These asphalts have become a “stumbling block” in the industrial coal tar processing industry chain. Now we have completed the negative distillation. Pressure technology can not only eat all of the company's asphalt, but the biggest advantage is that it can be used in the production of a series of 2 higher-end carbon blacks, which can create a lot of benefits for the company."
Wang Hongwei was very proud when he said this. Wang Hongwei calculated an account for the reporter. The company produces more than 400 tons of by-product pitch in the production of coal tar every day, while the raw material for low-end carbon black is calculated to consume up to 300 tons, and there are more than 100 tons of asphalt. Sell it at a low price. If distillation negative pressure technology is applied, it is not only possible to digest the remaining more than 100 tons of asphalt, but also to create a profit of 200 yuan per ton higher than before, and the production of higher-end carbon black is lower than that. The market price of carbon black is high. As a result, the daily profits generated in the application of distillation vacuum technology should be increased by more than 20,000 yuan or even 40,000 yuan.
Turning the "stumbling block" into a "stepping stone" is the pride of the Black Cat Black Company's technology research and development center, but there is hard work behind it. In order to make asphalt become "waste" and treasure to achieve "ornate transformation", in 2013, Wuhai Black Cat Carbon Black Company began to carry out technological research and development, after more than 200 days and nights of repeated trials and demonstrations, black cat carbon black The company's technical team has finally developed a distillation negative pressure technology that can convert all the bitumen produced in the production of coal tar into high-quality carbon black oil for direct use in the production of carbon black for enterprises. The successful development of distillation negative pressure technology will make the deep processing of coal tars more smooth.
"The success of distillation negative pressure technology allows companies to realize the structure of freely adjustable products. If bitumen market conditions are good, we can sell them. If the market conditions are low, we can convert all of them into carbon black oil, which can also increase productivity. About 20%.” Wang Hongwei said happily.
The distillation negative pressure technology plan was put into trial application in the black cat carbon black company in September. The successful application of this technology marks the “stumbling block” in the development of asphalt as a “stepping stone” to promote the development of enterprises.
The distillation negative pressure technology is about to be launched. The black cat company's technical R&D center should have been celebrated. However, this team is not satisfied. They have also started to think about the new medium-temperature asphalt equipment that was idle after the new technology was launched.
"In the next step of technological research and development, we must do research on modified asphalt, excavate the greater value of medium-temperature asphalt, extend our industrial chain, and then digest the excess asphalt in the Wuhai region." Black Cat carbon black technology R & D Center Cheng Wenhui, the person in charge, has a far-reaching goal. He is more confident in the future technological development.
