Updated: July 2002

1. Purpose

This system consists of a combination of dry/semi-dry type absorbents and bag filters to handle exhaust gas including fumes from solid waste incinerators and combustion furnace, hazardous acid gas containing HCl, SOX, and HF, heavy metals such as lead and mercury, and hazardous fine particles containing dioxins, and other gases.

2. System Outline

The FGC system falls into the DX series or SX series depending on the atomizing status of the hydrated lime used. The DX series uses dry powder atomizing lime, and the SX series uses slurry atomizing lime. A total of five kinds of systems are available as shown in Fig. 1.

Fig.1 Diagram of SINTO FGC System Series

3. Performance and Characteristics

With the FGC system, the acid gas removal rate is normally more than 90% and that of heavy metals excluding mercury is more than 95% due to the bag filters. It is also possible to remove dust from exhaust gas to less than 10mg/m³N.
At the same time, it is expected that adhered dioxins are also removed. Typical HCl removal efficiency by the DX and SX series is shown in Fig. 2.

Effect of moisture rate in gas

Comparison of HCl removal in gas. Efficiency between SX/DX series

Fig.2 Performance of FGC System (An example)

4. System Composition

Fig. 3 shows the flow sheet of the SINTO SX series.

Fig.3 Refuse-to-Energy System
(Wheelabrator Environmental System. Inc.)

5. Application Example

Gs volume: 100-5000m³N/min
Applications: Industrial and Municipal waste incinerator
Fig. 4 shows a municipal waste incinerator plant

Fig.4 Bridgeport, Connecticut Refuse-to-Energy Facility

Sinto Ecotec Company
1 Nishinagane, Sakazaki, Koda-cho Nukata-gun Aichi 444-0104 Japan
TEL +81-564-62-3411
FAX +81-564-62-5504