Modeling study for Fischer-Tropsch synthesis in slurry bubble column reactors
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摘要: 建立了费托合成鼓泡浆态床反应器双泡模型，通过模型对比的方法模拟讨论了多个反应器模型，双泡模型、全混模型以及多级串联模型，对比模拟讨论了费托合成反应各模型的适用性。模拟结果说明，全混模型适用于费托合成动力学行为的考察模拟；多级串联模型在一定的级数下能够近似模拟鼓泡浆态床中费托合成反应结果，更适用于探讨返混对费托合成反应行为的影响；双泡模型能够描述鼓泡浆态床中流体力学对反应的影响。Abstract: Two-bubble class model for Fischer-Tropsch synthesis in slurry bubble column has been developed. Three models including two-bubble class model, perfected mixed model and multi-stage series model have been contrasted for Fischer-Tropsch synthesis. The perfected mixed model is the most appropriate in simulation of kinetics for Fischer-Tropsch synthesis. The multi-stage series model can approximately simulate reaction results of Fischer-Tropsch synthesis in slurry bubble column when the series number is appropriate, and it can be used in simulation of the effects of back mixing on reaction behaviors. The two-bubble class model is the best selection to describe the relations between the hydrodynamics and the reactions in slurry bubble column for Fischer-Tropsch synthesis.
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Key words:
- Fischer-Tropsch synthesis /
- slurry bubble column reactors /
- model /
- ideal reactor /
- simulation
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