Life Cycle Assessment

The transformation of SPL and beneficial use of resulting by-products has a net positive effect on energy utilization and the environment

Regain has undertaken a study into the overall environmental effects of the SPL transformation process and HiCAl product use in cement manufacture. 

Environmental Life Cycle Assessment (LCA) provides a basis for quantifying the economic and environmental effects of industrial processes. A LCA approach in accordance with the International Standard ISO 14044 for Environmental Management – Life Cycle Assessment provides a basis for characterizing resource consumption, resource replacement, energy consumption, energy savings and other significant environmental aspects associated with the optimized use of SPL in cement manufacture.

The functional unit around which this life cycle analysis is based is one metric tonne (1,000 kilograms) of a Regain product named HiCAl 30 which is manufactured by Regain for use in the cement industry. It is representative of the range of products manufactured and marketed by Regain as it is composed of the same proportion of materials that Regain recovers from the primary aluminum smelting industry.

Overall energy consumption, energy savings and GHG emissions associated with the functional unit of one tonne of SPL are summarized in the table below.

Summary of Emission and Energy Aspects for One Metric Tonne of SPL
 Description GHG Emission Thermal Energy   Electrical Energy
SPL Processing  0.2t CO2e 1.5 GJ  50 kWh 
Savings from use of SPL-derived products  4.2t CO2e  17.5 GJ  400 kWh
 Net  4.0t CO2e  16.0 GJ  350 kWh

This study is one example only of the net benefits to industry, environment and community of re-use of waste products, following the principles of Industrial Ecology. 

For more information on LCA related to SPL processing, please contact Regain.