Cement, Energy and Environment

Table 2 Example of a specification for waste-derived alternative fuels (Source: MVW) Quality Guidelines for suppliers of secondary fuels Specification of combustibles from industry and trade wastes textile, paper, rubber, plastic and composite plastic fractions Composition according to Waste Key Numbers, See form " Declaration Analysis" Composition Designation of the material Components Proportion mass% Maximum value practice value Mechanical characteristics: - Maximum particle size < 15 mm One dimensional (films two dimensional) - Hard plastic proportion 5 0% - Dust content < 0.5 mm, max. 10% Calorific value, as received: NCV, ar 20 to 24 MJ/kg (min. 20 000 kJ/kg) Moisture: H20 12 20 Elements, dry matter: H s 0 N 5 c cr 0.5 F 0.05 Ash content: Ash 25 Practice value prop. Max. value prop. [mg/kg] [mg/kg] Trace elements related to OS: Cd 3 5 Tl 1 2 Hg 0.6 Sb 25*} 60*} As 9 20 Pb 50 100 Cr 40 120 Co 8 15 Cu 100 150 Mn 50 150 Ni 50 100 v 10 20 Sn 20 50 Be 0.4 2 Se 5 10 Te 5 20 Zn 2000 PCB Sum acc.to DINx5 3 *) Dependent of analysis process .. 18