{"id":6883,"date":"2025-07-04T10:33:37","date_gmt":"2025-07-04T10:33:37","guid":{"rendered":"https:\/\/aurora-heu.eu\/?p=6883"},"modified":"2025-07-04T10:33:37","modified_gmt":"2025-07-04T10:33:37","slug":"thermodynamic-properties-of-co%e2%82%82-absorption-in-cesar1-essential-data-for-better-process-modelling","status":"publish","type":"post","link":"https:\/\/aurora-heu.eu\/el\/2025\/07\/04\/thermodynamic-properties-of-co%e2%82%82-absorption-in-cesar1-essential-data-for-better-process-modelling\/","title":{"rendered":"Thermodynamic Properties of CO\u2082 Absorption in CESAR1 \u2014 Essential Data for Better Process Modelling"},"content":{"rendered":"\n[et_pb_section fb_built=”1″ _builder_version=”4.27.3″ _module_preset=”default” background_enable_color=”off” custom_padding=”3rem||0rem||false|false” global_colors_info=”{}” theme_builder_area=”post_content” custom_margin=”||-36px|||”][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”2″ _builder_version=”4.27.4″ _module_preset=”default” background_color=”#FFFFFF” width=”100%” custom_padding=”||2px||false|false” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″ custom_margin=”|auto|-43px|auto||”][et_pb_column type=”1_2″ _builder_version=”4.25.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” width=”95%” module_alignment=”left” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]

We are proud to announce a new scientific publication from the AURORA project, authored by<\/span> <\/span><\/span>Diego <\/span>Morlando<\/span>, Ardi Hartono and Hanna K. Knuutila<\/span>,<\/span><\/span> published in Carbon Capture Science & Technology<\/em>. This important work provides extensive experimental data on the <\/span><\/span>thermodynamic properties of CESAR1<\/span><\/span>, a key solvent blend for industrial carbon capture, helping to improve process modelling and <\/span>energy <\/span>optimization<\/span>.<\/span><\/span>\u00a0<\/span><\/h4>[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” width=”95%” module_alignment=”left” custom_padding=”||1rem||false|false” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]

This important work provides extensive experimental data on the <\/span><\/span>thermodynamic properties of CESAR1<\/span><\/span><\/strong>, a key solvent blend for industrial carbon capture, helping to improve process modelling and <\/span>energy <\/span>optimization<\/span>.<\/span><\/span>\u00a0<\/span><\/p>\n

\ud83d\udcc4 <\/span><\/span>Title<\/span><\/span><\/strong>: Thermodynamic data for CO<\/span><\/span>2<\/span><\/span><\/span> absorption in aqueous 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) solutions: CO<\/span><\/span>2<\/span><\/span><\/span> solubility, N<\/span><\/span>2<\/span><\/span><\/span> <\/span><\/span><\/span>O solubility, heat of absorption of <\/span>CO<\/span><\/span>2<\/span><\/span><\/span> ,<\/span> pH and liquid speciation<\/span><\/span><\/em><\/span><\/span>
<\/span>\ud83d\udcda <\/span><\/span>Journal<\/span><\/span>: <\/span><\/span><\/strong>Carbon Capture Science & Technology<\/span><\/span>\u00a0<\/span><\/span><\/p>[\/et_pb_text][et_pb_button button_url=”https:\/\/doi.org\/10.1016\/j.ccst.2025.100458″ url_new_window=”on” button_text=”Read The Full Publication” _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||2rem||false|false” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″][\/et_pb_button][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” width=”100%” custom_padding=”||||false|false” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]

\ud83c\udf0d<\/span> <\/span>Why this study is important<\/span><\/h4>[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” width=”95%” module_alignment=”left” custom_margin=”|23px||||” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]

Carbon capture is essential to reduce CO\u2082 emissions from industrial sources. Among available technologies, chemical absorption using aqueous amine solutions stands out as one of the most promising. The <\/span>CESAR1 solvent blend<\/span><\/b>,<\/span> a mixture of 3 M AMP (2-amino-2-methyl-1-propanol) and 1.5 M PZ (piperazine), is considered a benchmark for next-generation CO\u2082 capture.<\/span>\u00a0<\/span><\/p>\n

However, as highlighted in earlier reviews (e.g. Morlando et al. 2024), key gaps in experimental thermodynamic data for CESAR1 have limited the accuracy of process models and the design of capture plants. This new study addresses these gaps, providing essential data needed to optimise CO<\/span>2<\/span> capture plants using the CESAR1 solvent for commercial deployment.<\/span>\u00a0<\/span><\/p>[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” width=”95%” module_alignment=”left” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]

Authors:<\/span><\/p>\n

    \n
  • Norwegian University of Science and Technology (NTNU) – Department of Chemical Engineering<\/strong>: Diego Morlando, Ardi Hartono and Hanna K. Knuutila.<\/li>\n<\/ul>[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” width=”95%” module_alignment=”right” custom_padding=”||||false|false” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]

    \ud83d\udd2c Key contributions of the study<\/span><\/span>\u00a0<\/span><\/h4>[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_orientation=”right” width=”95%” module_alignment=”right” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]
      \n
    • CO\u2082 solubility data extended to high temperatures<\/span><\/b>\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

      The team measured CO\u2082 solubility in aqueous AMP+PZ solutions (including the CESAR1 blend) at temperatures up to 150\u00b0C, expanding the range of temperature and CO<\/span>2<\/span> loading previously investigated and supporting the evaluation of high-pressure, energy-efficient stripping processes.<\/span>\u00a0<\/span><\/p>\n

        \n
      • Heat of absorption data<\/span><\/b>\u00a0<\/span><\/li>\n<\/ul>\n

        New measurements of the heat of absorption of CO\u2082 across various temperatures, CO\u2082 loadings, and amine concentration ratios offer insights into the energy required for solvent regeneration.<\/span>\u00a0<\/span><\/p>\n

          \n
        • N\u2082O solubility data for CESAR1<\/span><\/b>\u00a0<\/span><\/li>\n<\/ul>\n

          N<\/span>2<\/span>O solubility <\/span>in the CESAR1 <\/span>was<\/span> measured at different temperatures and CO<\/span>2<\/span> concentrations. These data can be used to estimate the concentration of the free CO<\/span>2<\/span> in the mixed solvent, constituting an important part of the thermodynamic framework.<\/span><\/p>\n

            \n
          • Liquid speciation and pH behaviour<\/span><\/b>\u00a0<\/span><\/li>\n<\/ul>\n

            Nuclear Magnetic Resonance (NMR) provided data on the distribution of molecular and ionic species formed during CO\u2082 absorption in CESAR1. The study also mapped pH behaviour across different CO\u2082 loadings and amine concentrations. These data contribute to a better understanding of the chemistry of the solvent system at relevant process conditions.<\/span>\u00a0<\/span><\/p>[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” width=”95%” module_alignment=”right” custom_padding=”||||false|false” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]

            \ud83d\udccc What we learned<\/span><\/span>\u00a0<\/span><\/h4>[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” width=”95%” module_alignment=”right” custom_margin=”|||23px||” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]
              \n
            • AMP\/PZ concentration ratios impact thermodynamic properties. While small changes in the AMP\/PZ ratio had minimal impact, higher AMP\/PZ concentration ratio led to behaviour closer to AMP alone.<\/span>\u00a0<\/span><\/li>\n
            • Heat of absorption is influenced by CO\u2082 loading and amine composition but is constant with temperature across the range investigated.<\/span>\u00a0<\/span><\/li>\n
            • N\u2082O solubility decreases with temperature and CO\u2082 loading.<\/span>\u00a0<\/span><\/li>\n
            • Speciation results clarified how CO\u2082 binds within CESAR1, helping validate reaction mechanisms for modelling.<\/span>\u00a0<\/span><\/li>\n<\/ul>\n
                <\/ul>\n
                  <\/ul>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content” custom_margin=”|auto|21px|auto||”][et_pb_column _builder_version=”4.27.4″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″ sticky_enabled=”0″ custom_margin=”-37px||-49px|||” min_height=”177.4px” custom_padding=”||15px|||”]

                  \ud83c\udf31 Contribution to AURORA\u2019s mission<\/span><\/span>\u00a0<\/span><\/h3>\n

                  This research directly supports AURORA\u2019s mission to qualify CESAR1 for industrial-scale deployment, offering:<\/span>\u00a0<\/span><\/p>\n

                  \u2705 A stronger experimental foundation for accurate process model development<\/span>\u00a0<\/span><\/p>\n

                  \u2705 Data to improve the energy optimization of the process<\/span>\u00a0<\/span><\/p>\n

                  \u2705 A clearer understanding of CESAR1\u2019s chemical behaviour under operational conditions<\/span>\u00a0<\/span><\/p>\n

                    <\/ul>\n
                      <\/ul>[\/et_pb_text][et_pb_button button_text=”Read the full publication” _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content” button_url=”\u00a0https:\/\/doi.org\/10.1016\/j.ccst.2025.100458″ button_alignment=”center” hover_enabled=”0″ sticky_enabled=”0″ min_height=”37px” custom_margin=”||25px|||”][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||||false|false” custom_padding=”2rem||2rem||true|false” box_shadow_style=”preset1″ global_colors_info=”{}” theme_builder_area=”post_content” min_height=”213.2px”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” width=”80%” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_text_color=”#FFFFFF” width=”95%” module_alignment=”right” custom_padding=”||||false|false” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]

                      Stay tuned as AURORA continues to generate knowledge that will help make carbon capture cleaner, safer, and more cost-effective for industries across Europe.<\/span><\/span>\u00a0<\/span><\/strong><\/p>[\/et_pb_text][et_pb_button button_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjQwMjIifX0=@” button_text=”See Our Results” button_alignment=”center” _builder_version=”4.27.4″ _dynamic_attributes=”button_url” _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_enable_color=”off” custom_padding=”||||false|false” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.26.1″ _module_preset=”default” background_color=”#FFFFFF” width=”100%” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.25.2″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_post_nav in_same_term=”on” prev_text=”Previous Publication” next_text=”Next Publication” _builder_version=”4.27.3″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_post_nav][dsm_blog_carousel include_categories=”6″ thumbnail_img_type=”cover” use_author=”off” _builder_version=”4.25.2″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][\/dsm_blog_carousel][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":"

                      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 capture, helping to improve process modelling and energy optimization.\u00a0This important work provides extensive experimental data on the thermodynamic properties of CESAR1, a key solvent blend for industrial carbon capture, helping to improve process modelling and energy optimization.\u00a0 \ud83d\udcc4 Title: Thermodynamic data for CO2 absorption in aqueous 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) solutions: CO2 solubility, N2 O solubility, heat of absorption of CO2 , pH and liquid speciation\ud83d\udcda Journal: Carbon Capture Science & Technology\u00a0\ud83c\udf0d Why this study is importantCarbon capture is essential to reduce CO\u2082 emissions from industrial sources. Among available technologies, chemical absorption using aqueous amine solutions stands out as one of the most promising. The CESAR1 solvent blend, a mixture of 3 M AMP (2-amino-2-methyl-1-propanol) and 1.5 M PZ (piperazine), is considered a benchmark for next-generation CO\u2082 capture.\u00a0 However, as highlighted in earlier reviews (e.g. Morlando et al. 2024), key gaps in experimental thermodynamic data for CESAR1 have limited […]<\/p>\n","protected":false},"author":4,"featured_media":6885,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-6883","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-journal-publication"],"_links":{"self":[{"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/posts\/6883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/comments?post=6883"}],"version-history":[{"count":4,"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/posts\/6883\/revisions"}],"predecessor-version":[{"id":6889,"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/posts\/6883\/revisions\/6889"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/media\/6885"}],"wp:attachment":[{"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/media?parent=6883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/categories?post=6883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aurora-heu.eu\/el\/wp-json\/wp\/v2\/tags?post=6883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}