III International Conference

PP-III-79ventilators 7 and 10, flame arrester 8 and catalytic reactor 9. The technical characteristics ofthe units of the plant are given in Table 1.The catalytic reactor is a single-piece apparatus containing a two-channel spiral heatexchanger, a catalytic section and an electric heater. By contrast to conventional catalyticreactors it has a rather high degree of heat recovery (80-85 %). The photograph of the reactorwith a capacity of 1000 м 3 /h is shown in Fig. 2.8To atmosphere1095Air7Cooling water36421Fig. 1 – Schematic diagramTable 1. Technical characteristics of the units of the pilot plant at “UniOnex”Apparatus Characteristic ValueWater vacuum pump Maximum gas flow rate660 Nm 3 /hrMaximum inlet concentration of ethylene oxide 300 g/m 3Jet scrubberGas flow rate1000 Nm 3 /hrWater flow rate10-15 m 3 /hrCatalytic reactor Gas flow rate o1000 Nm 3 /hrTemperature of the catalyst430-450°СInstalled electric power30 kWDegree of ethylene oxide oxidation 99.8-99.9 %619