SITUATION A large cement company located in Belgium produces 1.2 million tonnes of Portland cement a year for the international market. The 60-year- old plant consumes a variety of different materials to fuel its production line’s multi-step heating process. The cost of energy plays a large role in the bottom line for the plant – and the properties, ef?ciency, and availability of the fuels can differ widely. The plant’s decision-makers realiz

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