| γ-戊酮酸丁酯反应精馏过程的逐步优化方案设计 |
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| 引用本文： | A. Harwardt,K. Kraemer,B. Rüngeler,W. Marquardt.γ-戊酮酸丁酯反应精馏过程的逐步优化方案设计[J].中国化学工程学报,2011,19(3):371-379. |
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| 作者姓名： | A. Harwardt K. Kraemer B. Rüngeler W. Marquardt |
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| 作者单位： | Aachener Verfahrenstechnik-Process Systems Engineering, RWTH Aachen University, Germany |
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| 基金项目： | funded by the Excellence Initiative of the German federal and state governments to promote science and research at German universities |
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| 摘 要： | Butyl-levulinate has been identified as a promising fuel candidate with high oxygen content. Its combustion in diesel engines yields very low soot and NOx emissions. It can be produced by the esterification of butanol and levulinic acid, which themselves are platform chemicals in a biorenewables-based chemical supply chain. Since the equilibrium of esterification limits the conversion in a conventional reactor, reactive distillation can be applied to overcome this limitation. The presence of the high-boiling catalyst sulfuric acid requires a further separation step downstream of the reactive distillation column to recover the catalyst for recycle. Optimal design specifications and an optimal operating point are determined using rigorous flowsheet optimization. The challenging optimization problem is solved by a favorable initialization strategy and continuous reformulation. The design identified has the potential to produce a renewable transportation fuel at reasonable cost.
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| 关 键 词： | biofuels conceptual design reactive distillation butyl-levulinate mixed-integer nonlinear problems continuous reformulation process optimization process intensification |
| 收稿时间： | 2010-8-9 |
| 修稿时间： | 2010-8-9
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Conceptual design of a butyl-levulinate reactive distillation process by incremental refinement |
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| Andreas Harwardt,Korbinian Kraemer,Bettina R&#,ngeler,Wolfgang Marquardt.Conceptual design of a butyl-levulinate reactive distillation process by incremental refinement[J].Chinese Journal of Chemical Engineering,2011,19(3):371-379. |
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| Authors: | Andreas Harwardt Korbinian Kraemer Bettina R&# ngeler Wolfgang Marquardt |
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| Affiliation: | Aachener Verfahrenstechnik-Process Systems Engineering, RWTH Aachen University, Germany |
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| Abstract: | Butyl-levulinate has been identified as a promising fuel candidate with high oxygen content. Its combustion in diesel engines yields very low soot and NOx emissions. It can be produced by the esterification of butanol and levulinic acid, which themselves are platform chemicals in a biorenewables-based chemical supply chain. Since the equilibrium of esterification limits the conversion in a conventional reactor, reactive distillation can be applied to overcome this limitation. The presence of the high-boiling catalyst sulfuric acid requires a further separation step downstream of the reactive distillation column to recover the catalyst for recycle. Optimal design specifications and an optimal operating point are determined using rigorous flowsheet optimization. The challenging optimization problem is solved by a favorable initialization strategy and continuous reformulation. The design identified has the potential to produce a renewable transportation fuel at reasonable cost. |
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| Keywords: | biofuels conceptual design reactive distillation butyl-levulinate mixed-integer nonlinear problems continuous reformulation process optimization process intensification |
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