Abstract In this work, we developed a new e-NRTL thermodynamic framework for CO2 absorption in aqueous mixtures of 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) in Aspen Plus. The e-NRTL AMP/PZ/H2O/CO2 model was fitted on experimental data covering a range of AMP concentration from 12 to 48 mass % and PZ concentration…

Abstract Carbon capture from hard-to-abate industries is essential. This study investigates the effect of stripper pressure on the performance of amine-based CO2 capture from cement flue gas, using the CESAR1 solvent. Through a rigorous data filtering and binning methodology, experimental results were systematically categorized, enabling a precise evaluation of how…

We are proud to announce that Hallvard F. Svendsen, Hanna K. Knuutila, Ardi Hartono, Maxime Francois and Diego Morlando at NTNU, together with external collaborators Peter Moser (RWE) and Georg Wiechers (RWE) have published a new article presenting results from the AURORA and SCOPE projects.The publication introduces a new class-based…

We are proud to announce a new scientific publication from the AURORA project, authored by Diego Morlando, Ardi Hartono and Hanna K. Knuutila, published in Carbon Capture Science & Technology. This important work provides extensive experimental data on the thermodynamic properties of CESAR1, a key solvent blend for industrial carbon…

A new scientific publication based on research from the AURORA project has just been released in the journal Industrial & Engineering Chemistry Research. This study delivers an in-depth analysis of the degradation behaviour of the CESAR1 solvent —a popular choice for solvent-based post-combustion CO₂ capture.This work, developed under the AURORA…

Abstract Global warming is a major issue that needs to be addressed and limited. The CESAR1 solvent blend has a high potential for becoming a commonly employed, commercial solvent system. In this work, the viscosity and density data for aqueous CO2 loaded CESAR1 (26.6 wt.% AMP 12.8 wt.% PZ) solution…

The final step in capturing and storing carbon dioxide (CO₂) emissions is geological storage, where CO₂ is injected deep underground into carefully chosen locations. These locations could be natural formations like saline aquifers (underground reservoirs filled with salty water) or empty oil and gas fields.This work, part of the AURORA…

The fight against climate change requires innovative solutions, and one promising method is CO₂ capture and storage (CCS). CCS involves capturing carbon dioxide from industrial emissions before it reaches the atmosphere. At the heart of this process are specialized chemical solvents, such as CESAR1, which absorb CO₂ from flue gases.While…

CO2 capture technology is vital for reducing greenhouse gas emissions. But what happens when the chemicals used in this process wear out or degrade? Scientists have been studying how to rejuvenate these chemicals through a method called thermal reclaiming. This research focuses on ethanolamine (MEA), a widely used solvent for…

AURORA’s latest scientific journal publication provides experimental density and viscosity data on different unloaded and CO2-loaded aqueous blends of  2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) used for absorption-based CO2 capture. The paper also provides correlations for density and viscosity suitable for various modelling works.In our previous review article, we identified knowledge…

Abstract Chemical absorption using aqueous amine solutions is a well-established method to capture CO2 from industrial gases. The technology has a high level of maturity and is industrially deployed. However, for CO2 capture from exhaust gases, solvent emissions may pose a significant challenge to its widespread adoption. Large-scale implementation requires…

Abstract Rapid upscaling and deployment of more cost-efficient and sustainable carbon capture solutions is needed to reduce the emissions of CO2-intensive industries. Solvent-based carbon capture is an important technology that can be readily adopted to many emission sources. Such technology can achieve high capture rates and deliver CO2 at high…

Abstract The overarching aim of the AURORA project is to qualify the CESAR1 solvent for commercial deployment. This is done through a dedicated qualification procedure [1], which ensures that important knowledge gaps are identified based on results from previous projects (e.g., CESAR, ALIGN-CCUS, and SCOPE) and closed through extensive pilot…

Abstract The aim of the AURORA project has been to qualify the open and non-proprietary CESAR1 solvent technology for commercial deployment. As part of this qualification there have been two major test campaigns in pilots (the Tiller pilot and the Technology Centre Mongstad -TCM) and validated process models based on…

Abstract An amine-based CO2 capture plant may cause harmful emissions to the atmosphere, and it is important to measure and control the emissions of amines and products resulting from their degradation during the process. The present work is a part of the SCOPE and AURORA projects and presents modelling and…

Abstract The CESAR1 solvent is a non-proprietary blend of 2-amino-2-methylpropanol (AMP) and piperazine (PZ), that has been extensively studied as a good candidate for post-combustion CO2 capture. It offers lower energy demand, more flexibility of operation and higher chemical stability than the earlier benchmark solvent, 30wt% ethanolamine (aq.) 1. The…

Abstract The CESAR1 model in the CO2SIM simulator has been updated based on new laboratory experiments covering a broader loading and temperature range compared to previous reported data in the literature. The updated model has been validated and successfully improved by extensive testing at the Tiller pilot plant, which operated…

Abstract Global CO2 emission trends show an increase in the total CO2 emissions, i.e. 36.8 Billion tons in 2022 [1], 37.4 Billion tons in 2023 [2] and in 2024 CO2 emissions are expected to be above 40 Billion tons [3]. Though clean energy deployment is increasing, it’s not yet at…

Abstract A nonlinear model predictive control (NMPC) strategy is successfully demonstrated for the Tiller CO2Lab (SINTEF AS) aminebased post-combustion CO2 capture pilot using the CESAR1 solvent. The dynamic pilot plant model is validated against experimental results with good agreement. Building on previous experience with testing this type of controller, a…

Abstract Reducing carbon dioxide (CO2) emissions is a significant global challenge in combating climate change. Chemical absorption using aqueous amine solution is the most mature technology for post-combustion carbon capture [1]. An aqueous blend of 3 M 2-amino-2-methyl-1-propanol (AMP) + 1.5 M piperazine (PZ), also known as CESAR1, is considered…