Evaluation of Reclaimer Sludge Disposal from Post-combustion CO 2 Capture

作     者：A. Sexton K. Dombrowski P. Nielsen G. Rochelle K. Fisher J. Youngerman E. Chen P. Singh J. Davison 

作者机构：Trimeric Corporation PO Box 826 Buda Texas 78610 United States URS Corporation 9400 Amberglen Boulevard Austin Texas 78729 United States The University of Texas McKetta Department of Chemical Engineering 200 E. Dean Keaton C0400 Austin Texas 78712 United States IEA Greenhouse Gas R&D Programme Pure Offices Cheltenham Office Park Hatherley Lane Cheltenham United Kingdom 

出 版 物：《Energy Procedia》 

年 卷 期：2014年第63卷

页      面：926-939页

主　　题：CO 2 capture monoethanolamine piperazine methyldiethanolamine solvent reclaiming reclaimer sludge disposal degradation 

摘      要：An important environmental issue for amine-based post-combustion CO 2 capture is the generation of reclaimer sludge containing degradation products and impurities that must be disposed. This paper evaluated the environmental fate of reclaimer wastes generated from three amine-based solvents (monoethanolamine, piperazine, and a methyldiethanolamine/piperazine blend) used for CO 2 capture at a pulverized coal and a natural-gas combined cycle power plant (900 and 810 MWe, respectively) with typical flue gas compositions. The solvent loss and impurities and degradation accumulation in the CO 2 capture units were modeled. A techno-economic analysis of different reclaiming technologies was conducted. The reclaimer sludge was classified based on US and EU regulations for hazardous waste, and alternative options for reclaimer sludge disposal were evaluated.