A process for the regeneration of particulate matter with oxygen and carbon dioxide.

摘要

A process is disclosed for a regenerator operated with carbon dioxide and oxygen-containing regenerator feed gas wherein the flue gas emanating from the overhead of the regenerator as effluent is processed to reduce NOx contaminant and is oxidized to convert carbon monoxide to carbon dioxide. A portion of the resultant compressed stream is recycled as a diluent CO2 gas to be mixed with oxygen regenerator feed gas. Another portion of the stream is compressed, dried and distilled to remove SOx and a pure CO2 product for export. Residual CO2 and O2 from the distillation is recycled to the regenerator optionally.