The leaching and carbonation performances of indirect mineral carbonation are investigated using coal fly ash (FA) as the raw source and water as the solvent. The reactions were conducted at ambient temperature and pressure with a gas mixture comprised of 15 and 33mol% CO2. The overall CO2...

The present paper investigates the application of raw coal fly ash (FA) to dry-based CO2 fixation. Dry sorbents are manufactured by mixing FA, NaOH, CaO and a small amount of water and their absorption behavior, performance, regeneration and leaching efficiency are analyzed. The CO2 absorption...

The contribution of the molten carbonate fuel cell system (MCFCs) to carbon dioxide (CO2) emission reduction in power application is analyzed. MCFCs can separate and concentrate CO2 emitted from traditional thermal power plants (PPs) without reducing the plant's overall energy efficiency. MCFCs...

Molten carbonate fuel cell (MCFC)/gas turbine (GT) hybrid system has attracted a great deal of research effort due to its higher electricity efficiency. However, its technology has remained at the conceptual level due to incomplete examination of the related issues, challenges and variables. To...

In line with the worldwide trend, Korea has recognized the importance of renewable energy and extensively supported its exploitation. As of August 2009, the largest incentives for renewable energy are offered to solar photovoltaic (PV) systems, which have vastly increased the installations of...

The present paper analyzes the CO2 emissions from mobile communications and portable wireless electronic devices in the Korea environment. The quantitative and qualitative contributions to CO2 emission reduction of the substitution of renewable energy for traditional electricity as the power...

Fuel cells (FCs) and their hybrid systems can play a key role in reducing carbon dioxide (CO2) emissions. The present paper analyzes the contributions of the FC system to CO2 emission reduction in three application fields. In the mobile application field, the direct methanol FC system has little...

Proton exchange membrane fuel cells (PEMFCs) have recently passed the test or demonstration phase and have partially reached the commercialization stage due to the impressive worldwide research effort. Despite the currently promising achievements and the plausible prospects of PEMFCs, there are...