# A Quantitative Investigation of CO2 Sequestration by Mineral Carbonation

**Authors:** Muneer Mohammad, Mehrdad Ehsani  
**arXiv:** [1512.05189](https://arxiv.org/abs/1512.05189)  
**Date:** 2015-11-11  
**Summary page:** https://www.summarizepaper.com/en/arxiv-id/1512.05189v1/

## Key points

- Anthropogenic activities have significantly contributed to the rise in CO2 levels
- CO2 emissions increased by 2.0 parts per million per year globally in the last decade
- In 2009, the United States and China were responsible for up to 43.4% of global CO2 emissions
- Various techniques for capturing and sequestering CO2 from power plants are being researched worldwide (post-combustion capture, pre-combustion capture, oxy-combustion capture)
- Mineral carbonation is a promising method for long-term storage of CO2
- Sequestration is an energy-intensive process that often relies on the power plant itself to supply additional energy
- The study found that current sequestration methods are not viable for achieving carbon sequestration goals
- More research and development are needed to overcome challenges associated with energy consumption during sequestration processes.

## Summary

Anthropogenic activities have significantly contributed to the rise in carbon dioxide (CO2) levels, a greenhouse gas that is driving concerns about global warming. In just the last decade, CO2 emissions increased by 2.0 parts per million per year globally. Notably, in 2009, the United States and China were responsible for up to 43.4% of global CO2 emissions. To address this issue, researchers have been exploring various techniques for capturing and sequestering CO2 from fossil fuel-based power plants. These techniques include post-combustion capture, pre-combustion capture, and oxy-combustion capture, all of which are actively being researched worldwide. One promising method for long-term storage of CO2 is mineral carbonation. However, sequestration is an energy-intensive process that often relies on the power plant itself to supply additional energy which leads to a reduction in the net amount of CO2 captured due to the extra CO2 emitted during the process. In this study by Muneer Mohammad and Mehrdad Ehsani titled "A Quantitative Investigation of CO2 Sequestration by Mineral Carbonation," a quantitative analysis of the energy consumption during the sequestration process was conducted for a typical 1GW pulverized coal and a 1GW natural gas-based power plant. The findings revealed that current sequestration methods and procedures are not viable for achieving the goal of carbon sequestration. Overall, while CO2 capture and sequestration hold promise as solutions to mitigate emissions from power plants, more research and development are needed to overcome the challenges associated with energy consumption during sequestration processes.