Process and system for calcination of high solids kraft paper pulp mill lime mud

摘要: The invention features methods and systems for calcining wet calcium carbonate lime mud produced in a re-causticizing manufacturing operation, instance, Kraft pulp mill (“lime mud”) converting it to re-burned by (a) feeding obtained from process into flash dryer then the dried bubbling fluid bed calciner thermally linked moving media heat transfer (MMHT) utilizing solid particulate circulating combustor wherein MMHT provides input calcination drying; (b) recycling being said receives WWTP sludge, or precipitated lignins, biomass, NCGs as fuels re-heat media; (c) recovering calcined “soft-burned” calciner. Steam heated boiler feed-water are also generated exported mill's steam distribution generation system well hot water use house operation. operation comprises apparatus. apparatus links separate combustion (exothermic) (endothermic) stages. further spray that utilizes exhausted stage.