Styrene Production Process by Ethylbenzene Dehydrogenation (S-SMT)

1. The S-SMT process is a proprietary and commercially-proven technology for EB dehydrogenation over GS series catalysts in the presence of steam. The features of S-SMT process are as follows:
2. The dehydrogenation of EB is operated under vacuum and adiabatic conditions with a inter-stage reheater.
3. The proprietary GS series catalyst for dehydrogenation of EB to styrene are used in S-SMT process.
4. The dehydrogenation reactor is designed as a two-stage axial-radial reactors system with an incorporated interstage reheater, in effort to reach reasonable pressure drop and uniform liquid distribution. Both the reactor capacity and the catalyst are effectively used.
5. The dehydrogenated mixture is fractioned by the energy-saving distillation process and energy consumption is substantially reduced.
6. The process condensate and vent gas are fully treated in order to decrease the waste emissions. The waste emission, is controlled at very low level.