[20210608]IF11455_碳封存的税收抵免（第45Q节）.pdf

https:/crsreports.congress.gov Updated June 8, 2021The Tax Credit for Carbon Sequestration (Section 45Q)Carbon capture and sequestration (CCS) technologies are being proposed as an option to reduce greenhouse gas (GHG) emissions from coal- and natural-gas-fired power plants, as well as other large industrial sources. The tax credit for carbon oxide sequestration (Internal Revenue Code IRC Section 45Q) is intended to incentivize investment in carbon capture and sequestration. What Is Carbon Sequestration? Geological sequestration of carbon is the process of injecting carbon oxides into underground geological formations, where they are either permanently trapped or transformed. Usually this process involves carbon dioxide (CO2), although injection and sequestration of other carbon oxides (e.g., carbon monoxide) is also possible. Geological sequestration is the final step in a CCS system. Geological sequestration is intended to permanently trap CO2 emitted from anthropogenic sources, such as power plants or industrial facilities, thereby reducing net emissions of this GHG into the atmosphere. CO2 can also be sequestered when injected underground for “tertiary” oil recovery, also know