ELECTROCHEMICAL FLUE GAS DESULFURIZATION: REACTIONS IN A PYROSULFATE-BASED ELECTROLYTE.

Article abstract of DOI:10.1149/1.2095660

A new electrolyte has been found suitable for use in an electrochemical membrane cell for flue gas desulfurization (FGD). The electrolyte is primarily K//2S//2O//7 and K//2SO//4, with V//2O//5 as oxidation enhancer. This electrolyte has a melting point near 300 degree C which is compatible with flue gas exiting the economizer of coal-burning power plants. Standard electrochemical tests have revealed high exchange current densities, around 30 mA/cm**2, in the free electrolyte. Sulfur dioxide is found to be removed from simulated flue gas in a multiple-step process, the first of which is electrochemical reduction of pyrosulfate.

Full text of DOI:10.1149/1.2095660

Downloaded on 2015-05-16 to IP 137.99.31.134 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-05-16 to IP 137.99.31.134 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-05-16 to IP 137.99.31.134 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-05-16 to IP 137.99.31.134 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-05-16 to IP 137.99.31.134 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).