Topic > Carbon as a method for mitigating climate change

IndexAssessmentThe purpose of text selectionAn indication and evaluation of the author's positionReference to additional research (optional)According to this article”Carbon capture and storage as a method for mitigating climate change ”, climate warming and the greenhouse effect have become serious challenges for the global environment. Climate change is one of the most complex issues we face today. It involves many scientific, economic, social, political, and moral and ethical issues and is a global problem, felt on a local scale, that will last for decades and centuries to come. (NASA, no date). Especially in some special fields, such as power plants, chemical factories, mining plants, the issue of carbon dioxide emissions has become the focus of people's attention. Through the analysis of the geochemical carbon cycle, it can be clearly known that carbon is exchanged and recycled in the natural cycle, including long-term and short-term processes. In order to mitigate carbon dioxide emissions, this article thoroughly discusses carbon capture and separation methods and comprehensively analyzes carbon storage methods. The first is carbon capture and storage, which involves several processes including pre-combustion, post-combustion and oxyfuel combustion (Leung et al., 2014). Pre-combustion capture usually occurs in coal or natural gas, while PCC (post-combustion) technology is a relatively mature technology in power plant systems. Oxygen combustion is also used in various power plants. To store carbon, the carbon is separated after capture. The main methods are absorption, adsorption and membrane separation. The solvent commonly used for absorption is monoethanolamine (MEA). Adsorbents are usually attached to the surface of the adsorbent during the carbon dioxide adsorption process. The final way to separate carbon is to use membrane adsorption with high permeability and selectivity of carbon dioxide. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay Separated carbon is stored in physical and biological ways. Physical carbon storage methods and technologies typically store carbon dioxide in various geologic structures, such as abandoned oil and gas reservoirs, deep-sea storage, and saline aquifers. Photosynthesis plays a key role in the carbon cycle, so reforestation not only stores carbon but also increases its ability to sequester it. Carbon sequestration in the ocean is also a giant container for storing carbon based on photosynthesis. Pilot experiments are currently underway to verify the effectiveness of this method. Microalgae and cyanobacteria have a high carbon sequestration capacity also relying on photosynthesis, both of which cost too much. In conclusion, every carbon capture and storage method is promising for climate mitigation, but there are many limitations, such as cost and immature technology and so on. Physical methods are relatively immature and play a limited role in some industries. Lack of state incentive mechanisms, high operating costs. Bacteria and blue algae are also being studied. Carbon sequestration is a beneficial method for mitigating climate change and reducing greenhouse gas emissions, despite the limitations of current technology. Evaluation The purpose of text selection I choose this article as a reading diary, I think the reason.