2results about How to "Increase hydrogen partial pressure" patented technology

The present invention discloses a catalytic diesel combined treatment process and system, the treatment process includes the following contents: catalytic diesel is fractionated to obtain component A, component B and component C, component A, component B and component C enter different catalyst beds in a fixed bed hydrogenation reaction zone for reaction respectively, the first liquid phase material obtained after gas-liquid separation of the reaction effluent enters an ebullating bed hydrogenation reaction zone for reaction, and the reaction effluent is separated to obtain naphtha and unconverted diesel. The treatment process is based on the concept of molecular refining combined with a fixed bed-ebullating bed hydrogenation combined process, and the different aromatics in the catalytic diesel raw material are matched with suitable reaction paths for treatment, so as to solve the problems of hot spots and high hydrogen consumption in the existing catalytic diesel process, and at the same time greatly improve the quality and yield of high value-added aromatic products, and the operation cycle of the device is greatly improved.

This utility model discloses a cycloalkane dehydrogenation system, belonging to the field of cycloalkane dehydrogenation technology. The cycloalkane dehydrogenation system includes a reaction feed heat exchanger, a steam condensate preheater, a reactor steam preheater, a reaction discharge cooler, a heat transfer medium steam heat exchanger, a dehydrogenation reactor, and a separator. The reaction feed heat exchanger, steam condensate preheater, and reactor steam preheater are sequentially connected to the feed inlet of the dehydrogenation reactor. The product outlet of the dehydrogenation reactor is sequentially connected to the reaction feed heat exchanger, reaction discharge cooler, and separator. The steam condensate outlet of the reactor steam preheater is connected to the steam condensate preheater. The gaseous product outlet of the separator is connected to a circulating hydrogen pipeline. The steam condensate outlet of the heat transfer medium steam heat exchanger is connected to the steam condensate preheater. This cycloalkane dehydrogenation system can extend the lifespan of the heat transfer medium, fully utilize the energy of high-pressure steam, and extend the catalyst lifespan.