oa Design and fabrication of a device for carbone capture in mobile emission sources

Carbon capture and sequestration (or carbon capture and storage, CCS) is considered to be a critical strategy worldwide--and in Qatar as well--to limit carbon dioxide (CO2) emissions; the main greenhouse gases responsible for global warming. This work focuses on designing a simple device for CO2 capture that can be used in mobile systems like vehicles and ships. The device mainly consists of a compact cylinder filled with an absorbent solution for CO2 emissions. A distributor with a special design is used to increase the area of contact between CO2 gas and the solution in order to increase the absorbent efficiency. Figure 1 shows a schematic diagram of the test rig. Different materials that have high absorption characteristics of CO2, such as NaOH and MgOH, have been used to evaluate the device performance. At the first stage of this work, the CO2 emission has been simulated by injecting a mixture of CO2 and N2 into the device to be used as a proof of concept. A number of parameters, including absorbent material concentration and a mixture (CO2/N2) flow rate, are tested in order to reach the maximum absorption efficiency. CO2 percentage is measured at the entrance and exit of the device to calculate the absorbent ratio with the time. The second stage of this work will include testing the device within an actual internal combustion engine in order to evaluate the device under actual conditions.