Design, process simulation and construction of an atmospheric dual fluidized bed combustion system for in situ CO2 capture using high-temperature sorbents

被引:95
作者
Hughes, RW
Lu, DY
Anthony, EJ
Macchi, A
机构
[1] CETC O Nat Resources Canada, Fluidized Bed Combust & Gasificat Grp, Ottawa, ON K1A 1M1, Canada
[2] Univ Ottawa, Dept Chem Engn, Ottawa, ON K1N 6N5, Canada
关键词
carbon dioxide capture; sorbent; fluidized bed combustion; carbonation;
D O I
10.1016/j.fuproc.2005.01.006
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
An atmospheric dual fluidized bed combustion system using high-temperature sorbents for in situ CO2 capture has been designed and simulated and is now under construction. The pilot plant is expected to burn petroleum coke and coal or biomass in a clean and efficient manner, generating a carbonator flue gas containing 2-5 mol% CO2, while producing a relatively pure carbon dioxide stream ready for compression. The concentration of sulphur dioxide in the resulting flue gas is expected to be on the order of a few parts per million by volume. Initial investigations are to be carried out using limestone-derived sorbents enhanced using a simple single step process for pore modification developed at CETC-Ottawa. Carbonation occurs in a two-stage fluidized bed carbonator-combustor allowing for optimal temperature control for both combustion (850-950 degrees C) and carbonation (650-750 degrees C). Calcination occurs in a single-stage fluidized bed combustor burning petroleum coke. Pilot plant operational data will be used for on-going scale-up activities using the ASPEN Plus process simulator. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:1523 / 1531
页数:9
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