Plant and method for burning carbonate rock

A method for burning carbonate rock, having the steps:

• operating a parallel flow regenerative (PFR) kiln in a first operating state, in which raw material is burned in a first kiln shaft of the PFR kiln and raw material is preheated in a second kiln shaft of the PFR kiln, wherein exhaust gases are transferred from the first kiln shaft to the second kiln shaft,
• operating the PFR kiln in a second operating state, in which raw material is burned in the second kiln shaft and raw material is preheated in the first kiln shaft, wherein exhaust gases are transferred from the second kiln shaft to the first kiln shaft,
• discharging exhaust gases from the PFR kiln,
• cleaning the exhaust gases discharged from the PFR kiln with a cleaning stage,
• wherein regenerative heat exchange occurs between the exhaust gases discharged from the PFR kiln and a regenerator, whereby temperature fluctuations of the exhaust gases discharged from the PFR kiln occurring in the first operating state and/or second operating state of the PFR kiln are buffered.

A method for burning carbonate rock, having the steps:

• operating a lime shaft kiln with at least one kiln shaft, in which raw material is burned,
• discharging exhaust gases from the lime shaft kiln,
• cleaning the exhaust gases discharged from the lime shaft kiln by a cleaning stage,
• wherein regenerative heat exchange occurs between the exhaust gases discharged from the lime shaft kiln and a regenerator, whereby temperature fluctuations of the exhaust gases discharged from the lime shaft kiln are buffered.