Styrene (phenyl ethylene, vinyl benzene, styrol, cinnamene) C6H5CH=CH2, is the common name for the simplest and by far the most important member of a series of unsaturated aromatic monomers. Styrene is used extensively for the manufacture of plastics, inclu ding crystalline polystyrene, rubber modified impact polystyrene,acrylonitrile-butadiene-styrene terpolymer (ABS).Commercial manufacture of the monomer began on a small scale before World War II. Since that time, production of the production of the monomer in the United States has grown enormously, reaching 1.95* 106 metric tons annually in 1970 and 3.2* 106 t/yr. in 1980. Several factors have contributed to this increase listed below:

1. boiling point 1450C , is a liquid that can be handled safely,

2. the activation of the vinyl group by the benzene ring make styrene to polymerize and copolymerize under a variety conditions,

3. Polystyrene is one of the easiest thermoplastic materials to mould and extract and it can be used for a large variety of application

Introduction

Properties&uses

Methods of Production

Material Balance

Energy Balance

Design of Equipments

Pollution control&Safety

Cost Estimation&Economics

Plant Location&Layout

Bibliography