ECO-Norit Activated Carbon Pte Ltd
Was incorporated in Singapore on the 6th July 2018, with ECO IEE holding 65% shares and Norit Netherland B.V holding 35% shares.
About ECO-Norit Activated Carbon Pte Ltd
ECO-Norit Activated Carbon Pte Ltd
- One of Singapore leading waste management companies founded in 1998 with an integrated waste management complex of 6.8ha of land
- 100% owned by Beijing Capital Eco-Environmental Group Co. Ltd
- Provides a range of high quality, reliable services exclusively to various industries in Singapore
- Fully licensed by NEA as Toxic Industrial, General and Biohazardous Waste Collector
- Norit is the original activated carbon manufacturer and has been leading the industry for more than 100 years. It is a leading provider with the broadest product line including over 400 activated carbon grades.
- Norit products remove impurities from food, beverages, pharmaceutical products, chemicals, water and air. They also purify a variety of other liquids and gases including renewable natural gas (RNG)/biogas – a sustainable source of energy.
Process Overview
Section 1: Spent carbon receiving and handling
- Receipt : 60% solid in 20MT ISO tank
- Discharged and Conveying using mainly process water
- Feed to Multi Hearth Furnace : 60% solid via dewatering screw
Section 2: Reactivation of spent carbon
- 6 hearths MHF with 3 different stages via Drying, Baking and Reactivation
Section 3: Reactivated carbon cooling, blending, screening and packing
- Reactivated carbon temperature to be cooled from 900C to about 60C before sieving
- On-size reactivated carbon to be shipped via 20MT ISO tank or bulk bags. Off-size reactivated carbon to be either rework as commercial viable product or dispose as waste
Section 4: Waste heat recovery and Air Emission Control System
- Treatment of flue gas containing volatiles and pollutants that were absorbed within the spent carbon before emission to the atmosphere
- High thermal energy in high-temperature flue gas is recovered by Waste Heat Boiler to produce steam for Multi hearth furnace
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Reactivation of SAC
01
In the multi hearth furnace, spent carbon is dropped off on the first bed and swept by the rake teeth, forming a mountain-like shape, to maximize contact area between the spent carbon and steam. The spent carbon will be dried and reactivated with steam.
02
3 stages within Multi hearth furnace
- a)Drying – SAC is dried under 100 ~ 300°C in the first two upper hearth
- b)Baking – SAC is baked under 400 ~ 600 °C in the third hearth to devolatise organic substances absorbed into the carbon pores and form fixed carbon on the surface of the activated carbon.
