Life Cycle Assessment on Selective Catalytic Reduction Flue-gas Denitrification

Three processes of selective catalytic reduction (SCR) flue-gas denitrification project by life cycle assessment LCA methodology were analysed, such as the production and transportation of the liquid ammonia, the catalyst and production materials, flue-gas denitrification, which based on a SCR flue-gas denitrification engineering project in a power plant. The energy consumption and environmental impact of each process were collected and calculated respectively. The results show that the environmental impact load (EIL) of SCR flue-gas denitrification project is 45 507.34 kg (per capita, targeted, 2000) during one year, less than the EIL (99 617.65 kg) of flue-gas release directly into the atmosphere without denitrification. Therefore, this project plays a significant role in environmental improvement.