26 Jul Carbon Sequestration process
कार्बन सीक्वेशट्रेशन (पृथक्करण) प्रक्रिया Carbon capture and storage (CCS) (or carbon capture and sequestration) is the process of capturing waste carbon dioxide (CO2) from large point sources, such as fossil fuel power plants, transporting it to a storage site, and depositing it where it will not enter the atmosphere, normally an underground geological formation. The aim is to prevent the release of large quantities of CO2 into the atmosphere. It is a potential means of mitigating the contribution of fossil fuel emissions to global warming and ocean acidification. Although CO2 has been injected into geological formations for several decades for various purposes, including enhanced oil recovery. Capturing and compressing CO2 may increase the fuel needs of a coalfired CCS plant by 25-40%. These and other system costs are estimated to increase the cost of the energy produced by 21-91% for purpose built plants. Applying the technology to existing plants would be more expensive especially if they are far from a sequestration site. Capture CO2 Capturing CO2 is probably most effective at point sources, such as large fossil fuel or biomass energy facilities, industries with major CO2 emissions, natural gas processing, synthetic fuel plants and fossil fuelbased hydrogen production plants. Extraction (recovery) from air is possible, but not very practical. The CO2 concentration drops rapidly moving away...