Switzerland-based Maerz has received an order from UNACEM (Unión Andina de Cementos) to supply a 600t/day PFR lime kiln. The kiln will be built and operated jointly at Tarma by UNACEM and Mexico-based lime producer Calidra Group. UNACEM already runs its integrated Condorcocha cement plant in Tarma. The supplier says that the kiln will be ready to install future CO2 capture technologies due to airtight sealed charging and discharging systems. It will also save up to 20% of electrical energy compared to conventional rotary piston blowers by using high-pressure fans to provide the process air.
Planning is underway for the project and is expected to be completed by the end of 2023. Maerz’ scope of supply will include the petroleum coke firing system, skip winch, charging and discharging systems, high-pressure fans, hydraulic unit and control system. According to the schedule, commissioning should take place in the first half of 2025.