“Enzyme-enhanced CO2 capture – bringing it to pilot scale”
Abstract:
The reduction of greenhouse gases and especially CO2 is one of the major tasks of today’s society.
The carbon capture and storage technology (CCS) can significantly contribute to immediate CO2 emission reduction by absorbing CO2 directly at the production point sources and preventing release to the atmosphere.
The major obstacle of this process the unfortunate link of capital and operational costs as fast CO2 absorbing solvents need more energy in the regeneration step, thus low capital costs likely result in high operational costs.
The use of a catalyst like the enzyme carbonic anhydrase (CA) may break that link and provide slow absorbing but energetically favorable solvents the needed capture rates to competitive in capital costs.
In order to evaluate the enzyme enhanced technology large scale experiments as well as process models are needed. This presentation summarizes the efforts of the scale up of enzyme enhanced CO2 capture. It describes the enzyme kinetic model development in lab scale and shows results from pilot scale absorption experiments.
In the end model prediction of CERE’s in-house absorber column model CAPCO2 with the implemented enzyme kinetic is compared to the experimental results.