Ethylene to ethylbenzene technology refers to the reaction of ethylene and benzene alkylation to form ethylbenzene under the action of catalyst.

99% of Ethylbenzene is used for dehydrogenated to styrene. Styrene is an important monomer in synthetic resin, ion exchange resin and synthetic rubber. It can be used to produce styrene butadiene rubber, polystyrene and Styrofoam. It is also used to copolymerize with other monomers to make engineering plastics of different uses. It is also one of the raw materials for producing ion-exchange resin and medicine. In addition, styrene can also be used in pharmaceutical, dye, pesticide and mineral processing industries.

Ethylene can be derived from pure ethylene or refinery catalyzed dry gas.

The raw material purification system is added to improve the adaptability of the process to the raw materials. Liquid phase reaction was adopted, the reaction conditions were relatively mild, ethylbenzene selectivity was higher than 98%, xylene content was no more than 50PPM. Innovative catalytic absorption, distillation process, different from ordinary catalytic distillation technology, the back-mixing arrangement is applicable. When the ratio of benzene to olefin is certain, the spray density can be controlled by evaporation, reflux and circulation at the bottom of the tower, so that the reaction temperature can meet the larger spray density at a lower condition, which is beneficial to prolong the life of the catalyst.