CHE 473 Lecture Notes - Lecture 5: Carbon Capture And Storage, Afforestation, Photon

• School: Ryerson University
• Department: Chemical Engineering
• Course: CHE 473
• Professor: Ali Lohi

Document Summary

Part 5 carbon sequestration carbon capture & storage (ccs) The key to long-term sustainable use of fossil fuels. Without sequestration, it will not be possible to make significant use of fuels while at the same time stabilizing the concentration of co2 in the atmosphere. In short term, it is possible to sequester some carbon currently emitted to the atmosphere by augmenting existing natural processes. For longer term, engineers are developing technologies to actively gather co2 and sequester it before it is emitted to the atmosphere. Two general categories: direct (active) sequestration: the deliberate human-controlled separation of co2 from other by-products of combustion and transferring to some non-atmospheric reservoir for permanent or quasi-permanent storage. Indirect sequestration: does not require human controlled manipulation of co2 instead, natural processes, such as uptake of co2 by living organisms, are fostered so as to accumulate co2 ay a greater rate than would otherwise have occurred.