RESEARCH INSTITUTE LIME AND MORTAR | IUTA E.V.| ICBM

Carbonate CO2 scrubbing process II (ECO2) – Practical experience
and technical optimisation

This article describes the practical experience and optimisation of the carbonate CO2scrubbing process at the Uniper coal-fired power station in Wilhelmshaven. It focusses on CO2 capture and the development of a buffering function. Since the CO2 scrubbing process can in principle be applied to almost all CO2 point sources, it can be used across industrial sectors and applications for climate protection and CO2 reduction.

The flue gas scrubbing was researched as part of the AiF IGF research project (IGF No. 18560 N, [1]). The project includes the optimisation of CO2 removal from the flue gas with simultaneous formation of a mineralised water, which is to be used directly for water body remediation and buffering. In this process, the natural limestone-weathering cycle is mimicked and artificially accelerated within the mobile demonstration plant. The advantage of the process is the long-term conversion of limestone powder, water and CO2 into calcium bicarbonate in dissolved form, which can be used as a pH...

Related articles:

Limestone powder CO2 scrubber – artificial limestone weathering for reduction of flue gas CO2 emissions

Slowing down climate change is one of the most important challenges of our age. Exceptional importance attaches in this context to reducing greenhouse-gas emissions, and those of carbon dioxide (CO2),...

more
Issue 12/2014 OTTO-VON-GUERICKE-UNIVERSITÄT MAGDEBURG/GERMANY

Energy consumption and CO2 content in the flue gas of normal shaft kilns: Part 2: Influence of the limestone quality and the process parameters

1 Influence of the CO concentration in the flue gas The lime shaft kiln is used in the lime industry in order to produce so-called medium to hard-burnt lime. This type of kiln is also used in the...

more
Issue 06-07/2009

Ecological comparison between hydrated lime and sodium bicarbonate when used for dry flue gas purification

Lime plays an important role in environmental protection. Not only due to its properties but also due to its natural occurrence, it is suitable and accepted for universal application in the...

more
Issue 11/2014 OTTO-VON-GUERICKE UNIVERSITY MAGDEBURG/GERMANY

Energy consumption and CO2 content in the flue gas of normal shaft kilns | Part 1: Influence of the air excess number

1 Introduction The so-called multi-fuel-fired normal shaft kiln (NSK) is one of the oldest types of lime shaft kiln, in which burnt lime is produced from limestone by expelling the carbon dioxide...

more
Issue 11/2011

Dissolution kinetics of chemically pure quicklime in the presence of various anions

1 Introduction Pure quicklime (CaO) is a white, solid material at room temperature, prepared by the thermal decomposition of limestone (CaCO3). Of the heavy industrial chemicals, lime is second only...

more