Innovation Leading in the front | Dongying Port Economic Development Zone: Extend the petrochemical industry chain aiming at high -quality "carbon fiber"

Dongying Daily/Aida Camp News Recently, the reporter came to the Shandong Provincial Chemical High School test base in Dongying Port Economic Development Zone. Entering the project construction site of the Carbon Material Research Center of China University of Petroleum (Beijing) Heavy Oil State Key Laboratory, the reporter saw that the experimental equipment in the factory in the factory has been installed and started to run. The situation, at the door of the factory building, the remaining accessories of the remaining equipment have also begun to enter one after another.

"During the process of oil processing, a large amount of heavy aromatic hydrocarbons will be generated, such as compressive oil, coking wax oil, etc., the content of aromatics in these by -products is high, which can reach more than 40%, and even some product heavy aromatics content exceeds 50%of more than 50% . In the past, the by -products of these petrochemicals were burned, which was a waste of resources and polluting the environment. In order to achieve the "dry squeeze net" of the raw materials, the industrial chain was extended. Heavy aromatics supercritical extraction technology can separate the raw materials of gabicar hydrocarbons into rich alkanes, rich aromatics and asphalt, and rich aromatics is an essential raw material for production of high -quality carbon materials. " Zhao Runpu, chairman of Shandong Qiantai Technology Research Co., Ltd., said.

It is understood that my country's asphalt -based carbon fiber material research has been completed and put into use in the early 1970s, and in the early 1980s, the problem of localization of high -performance asphalt -based carbon fiber raw materials has not been solved. Imported raw materials. The asphalt -based carbon fiber is divided into coal tar asphalt, petroleum asphalt and synthetic asphalt according to its different sources. However, because the coal tar asphalt structure is too complicated, the selection and optimization treatment of raw materials is not easy to achieve, and it is difficult to produce high -performance carbon fiber. Petroleum asphalt is a product of crude oil processing process. It is mainly composed of aromatics and alkyl -based aromatics. Use raw materials directly.

In view of this situation, after many years of research, researchers from the National Key Laboratory of the University of Petroleum (Beijing) The State Key Laboratory of Heavy Oil State, after studying the defects of coal tar illegal and petroleum asphalt structure, gradually transferred the research key to synthetic asphalt. Synthetic intermediate phase asphalt is a must -have material for the production of high -quality carbon materials such as carbon fiber, carbon micro -ball, and needle -shaped focus. Researchers from the National Key Laboratory of Heavy Oil China University of Petroleum (Beijing) have been committed to research on the development and utilization of gesture hydrocarbons. After many years of devoted research, successfully inventing the supercritical extraction technology of heavy aromatics. This technology can remove the asphalt quality of the alkae and the poor structure in heavy aromatics, get rich aromatics, and further synthesize the middle phase asphalt. At present, this technology has obtained 5 international invention patents, 8 Chinese invention patents, and technology has reached the international leading level.

In terms of high -performance carbon fiber production of high -quality carbon materials, the needle -shaped focus projects cooperated by Shandong Yida New Materials Co., Ltd. and China University of Petroleum (Beijing) have been commercialized in 2017. This product is mainly used to produce graphite electrodes and Lithium battery negative materials, currently the annual production capacity of 200,000 tons, production capacity ranks first in Asia and the second in the world. "Our" supercritical extraction+desulfurization refinement+intermediate phase asphalt aggregation+melting spinning silk+carbon dioxide 'combination technology has also matured. The theoretical research and basic research of this achievement have reached the international leading level. Industrialization applications. All Chinese trial equipment is expected to be completed before the end of the year. At that time, the experimental capabilities of high -end carbon materials can be formed. "Zhao Runpu said.

(Reporter Zhang Jiasong)

- END -