CO2 Capture from Lime and Cement Plants Using an Indirectly Heated Carbonate Looping Process – the Anica Project

Abstract

The overall aim of the ANICA project is to develop concepts of the indirectly heated carbonate looping (IHCaL) process for CO2 capture from lime and cement plants. CO2 avoidance costs of the IHCaL process for lime and cement production plants are expected to be in a well below 25 €/t, which is close to current CO2 prices and significantly lower than competing CO2 capture solutions for lime/cement plants. The novel process concepts are developed with the aid of advanced process simulations. The technology is demonstrated in a 300 kWth pilot plant at industrially relevant conditions using the same fuels, sorbents, and operating conditions as can be expected in large-scale commercial IHCaL plants for lime and cement applications. A detailed techno-economic assessment and a life-cycleanalysis is performed for both lime and cement applications. The basic design of a 20 MWth IHCaL demonstration plant is developed using two different technologies, i.e. fluidized bed reactors and Direct Separation technology, and costs of these plants are estimated. The paper presents an overview of the project as well as first results related to process simulations and design of the pilot plant.