Expandable polystyrene EPS

The values shown in Table 4.14 are not representatives of one given technology. They are representative for the variety of technologies used for the manufacture of EPS in Europe. The differences from one plant to another are due to differences in technologies, real life scale equipment and industrial operation. The values given refer to the emission and consiunption levels for the production of one tonne of product. 

1) VOC emissions from point sources but not including pentane 2) The emission values in the water are measured after treatment. The waste water treatment facility can be inside the plant or at a centralised location. These values are not necessarily correlated as they all represent average emission values. Each plant emits according to local permits and site-specific treatment plant specifications. Water treatment may be required according to local regulations.  

Gas Styrene Pentane Pentane Pentane, dust Pentane, dust Pentane, dust Pentane, dust Pentane, dust 

Solid waste Dust, packaging material - - Dust Dust Dust Dust Dust and dust from sweeping 

---

Fire and explosion risks from pentane m expandable polystyrene (EPS) Plastics recycling... 

Expandable polystyrene EPS is a modified PS prepared as small beads containing pentane gas which, when steamed, expand to form lightweight, cohesive masses for forms used to mold cups and trays, package fragile products for shipment, etc. Similar dimensionally stable forms molded from EPS are used as cores for such products as automobile sun visors with surface overlays, etc. 

The real-word case study considered here is the production of expandable polystyrene (EPS). Ten types of EPS are produced according to ten different recipes on a multiproduct plant which is essentially operated in batch mode. In this section, the multiproduct plant, the production process and the scheduling problem are presented. 

The plant is used to produce type A and type B of the polymer expandable polystyrene (EPS) in F = 5 grain size fractions each from a number of raw materials ( ). The availability of raw materials and the product storage capacity are assumed to be unlimited. The preparation stage is not limiting the production process... 

Exothermic chemical reactions, 25 299-301 catalytic converter, 10 45 formaldehyde manufacture by, 12 115 temperature-dependent enthalpy changes for, 25 303-305 Exothermic polymerization, 10 709 Exotic radioactive decays, 21 305-306 Expandable polystyrene (EPS),... 

The process is commonly used to mould expandable polystyrene (EPS) that is delivered containing some percentage of pentane as the blowing agent. The moulding needs three steps ... 

PS = Polystyrene including expanded polystyrene (EPS) and acrylonitrile-butadiene-styrene (ABS) copolymers... 

Application To produce expandable polystyrene (EPS) via the suspension process using BP Chemicals/ABB Lummus Global technology. 

Expanded polystyrene (EPS) articles are made using high impact polystyrene formulations with incorporation of a blowing agent (this is usually a volatile solvent such as pentane). Often, EPS containers will have a crystal polystyrene skin applied to the food contact surface to act as a barrier between food and container. Applications of EPS include thermoformed packaging for eggs, meat, fish and fast food trays. Substances typically used in the manufacture of polystyrene are given in Table 10.3. 

The resulting raw material, in the form of beads or granules, is called expandable polystyrene (EPS). The usual procedure is for the EPS beads or granules to be prepared in one location and transported to other locations, where they are expanded and/or molded into their final forms. This process has inherent advantages the costs of shipping the voluminous foam is minimized and intricate molding shapes can be molded directly without postprocessing. 

Expandable Polystyrene (EPS) for Molded Foam Expandable polystyrene is produced in the form of free-flowing beads, symmetrical shapes, and strands containing an integral blowing agent, such as pentane. When exposed to heat without restraint against expansion these particles "puff" from a bulk density of about 35 lb/ft3 to as low as 0.25 Ib/ft. In... 

BS 6203 1982 Fire Characteristics and Fire Performance of Expanded Polystyrene (EPS) Used in Building yipplications, 25 pp... 

---