Analysis and Operation of Coking Crude Benzene Hydro-refining Process

摘要

The reactive theory of coking crude benzene hydro-refining process was analyzed generally. The results show that proper reaction temperature, system pressure, and hydrogen partial pressure are better for the hydro-refining reaction, and play a certain role in extending the service life of catalyst. With extending the service time of catalyst, the catalyst activity will reduce. The operating temperature and operating pressure need to be strengthened. When the catalyst has been aging, the product quality not is able to achieve the specified requirements, it is necessary to carry on the regeneration to the catalyst to restore its activity. In practice, the key parameters of hydrogenation have been controlled reasonably. While ensuring that the unit was safe and stable in continuous operation, it had a high recovery rate of the product, the product quality has been increased obviously.