Lackner is one of hundreds, if not thousands, of scientists around the world who are working on ways to remove CO2 from the atmosphere, capturing carbon from the atmosphere using plants, rocks or engineered chemical reactions and storing it in soil, products such as concrete and plastic, rocks, underground reservoirs or the deep blue sea. Some of the strategies—known collectively as carbon.
Carbon sequestration is a method by which carbon-rich gases are absorbed from the atmosphere, converted into other products, which then stored in plants, soil, oceans, or geological formations. This process has occurred naturally since billions of years, and in recent times humans are trying to utilize it to reduce the amount of carbon dioxide released by industrial activities.
Researchers at MIT have found barriers to the long-term sequestration of carbon dioxide, a strategy for reducing greenhouse gas emissions: Once injected into the ground, they found, less carbon dioxide is converted to rock than previously imagined.
Interest in terrestrial carbon sequestration has increased in an effort to explore opportunities for climate change mitigation. Carbon sequestration is the process by which atmospheric carbon dioxide is taken up by trees, grasses, and other plants through photosynthesis and stored as carbon in biomass (trunks, branches, foliage, and roots) and soils.
Carbon Sequestration. Carbon sequestration is partially facilitated through sedimentation, where settled particulate organic carbon and carbon associated with sediment is buried and preserved in anaerobic soil environments where decomposition is very slow (Smith et al., 2001, 2002).
Carbon sequestration is being used by several commercial entities. MIT notes that some power plants capture carbon dioxide for commercial markets, and petroleum companies inject carbon dioxide into the ground for enhanced oil recovery.
Carbon sequestration may not, according to researchers at MIT, be the panacea that some had hoped. A recent study, partially funded by the United States Department of Energy, has found that far.
However, a major barrier to CO2 capture and sequestration is Its cost. This thesis presents the results of a detailed analysis of costs associated with today's technology for CO2 separation and capture at three types of power plants: Integrated Gasification Combined Cycles (IGCC), coal-fired simple cycles (Pulnrized Coal, PC), and natural gas-fired combined cycles (Natural Gas Combined Cycles.