2018

Catalyst Technology Update

Raise efficiency of ultra-low SHR production of styrene monomer with a novel catalyst formulation

The production of styrene monomer from ethylbenzene requires superheated steam as an energy source, as well as dehydrogenation catalysts to facilitate the reaction. As steam generation poses the highest influence on production costs, significant effort has been devoted to optimizing process design.

The production of styrene monomer from ethylbenzene requires superheated steam as an energy source, as well as dehydrogenation catalysts to facilitate the reaction. As steam generation poses the highest influence on production costs, significant effort has been devoted to optimizing process design. Since the 1950s, the typical steam-to-hydrocarbon ratio (SHR) for new plant designs has been reduced from 2.5 by weight ratio to 1. The present level of SHR process conditions, defined as ultra-low SHR, requires considerably less steam, allowing for a significant improvement in energy efficiency. However, lowering SHR is a complex process. The dehydrogenation of ethylbenzene to styrene monomer is

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