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Related Experiment Video

Updated: Jul 9, 2025

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal

Published on: November 10, 2023

Developments in mineral carbonation for Carbon sequestration.

Muhammad Imran Rashid^1,2, Zahida Yaqoob³, M A Mujtaba⁴

¹Chemical, Polymer and Composite Materials Engineering Department, University of Engineering and Technology, Lahore (New Campus), 39021, Pakistan.

|November 29, 2023

Summary

Mineral carbonation technology permanently sequesters carbon dioxide (CO2) using natural minerals. Research shows soaking and thermal activation enhance mineral reactivity for efficient CO2 capture.

Keywords:

Carbonation processes Concurrent grinding Mineral carbonation Pilot plants Thermal activation

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Area of Science:

Mineral technology
Geochemistry
Environmental science

Background:

Mineral carbonation is a key technology for permanent carbon dioxide (CO2) sequestration.
Temperature programmed desorption studies confirm CO2 interaction with magnesium, suggesting natural feedstocks are viable.
Soaking raw and heat-activated dunite improves yields in mineral carbonation processes.

Purpose of the Study:

To review the latest developments in mineral carbonation technology.
To discuss methods for increasing mineral reactivity and carbonation efficiency.
To cover advancements in carbonation processes, pre-processing, and pilot plant studies.

Main Methods:

Review of recent literature on mineral carbonation.
Analysis of thermal activation and soaking techniques on natural minerals (e.g., dunite).
Examination of various carbonation processes: single-stage, two-stage, acid dissolution, and pH swing.

Main Results:

Natural minerals can be effectively used for CO2 sequestration.
Soaking and thermal activation significantly increase the reactivity of minerals like dunite.
Various carbonation processes and pre-treatment methods (grinding) are evaluated for efficiency.

Conclusions:

Mineral carbonation technology offers a promising route for greenhouse gas mitigation.
Optimizing mineral reactivity and process conditions is crucial for efficient CO2 capture.
Further research is needed to advance mineral carbonation technology and its large-scale application.