Our Processes

WHAT IS PRE- AND CO-PROCESSING?

Pre-processing involves preparing waste to make it susitable for co-processing in cement kilns. This process transforms discarded materials into a valuable resource known as Alternative Fuels and Raw Materials (AFR).

Co-processing is the controlled use of AFR in cement production, where waste serves as both fuel and raw material. This process replaces primary fuels such as coal, petroleum coke, and natural gaswhile recovering energy and recyclign the mineral content of waste. Only qualified waste materials are used to ensure efficiency and environmental safety.

PRE-PROCESSING

Waste exists in various forms and qualities. Some types cannot be directly used for co-processing and must fist undergo a preparation process.

Pre-processing refers to operations that homogenize the chemical composition and/or physicaly properties of waste, ensuring consistency and suitability for co-processing. Transforming waste into a uniform material requires adherence to specific standards. This process produces a waste- derived product that meets the technical specifications of cement production while ensuring compliance with environmental regulations. Pre-processing plants typically store incoming waste and include grinding, mixing and homogenization proceesses.

CO-PROCESSING

Co-processing in cement kilns is globally recognized as one of the preferred methods to safely dispose of a wide range of hazardous and non-hazardous materials. It offers many environmental advantages such as:

High cement kiln gas temperatures
(over 1800°C) at high residual time
(up to 5 seconds) – representing ideal conditions for virtually complete destruction of any organic materia

Inherent cleaning of gases using lime
(a basic ingredient of cement)

No waste residue (total incorporation of ash into finished product)

Types of waste co-processed by INSEE Ecocycle

We are able to accommodate a wide range of waste, which in most cases is subjected to pre-processing procedures, requiring engineering expertise to ensure the waste is suitable for co-processing.