Sequential simulation of dense oxygen permeation membrane reactor for hydrogen production from oxidative steam reforming of ethanol with ASPEN PLUS
Hydrogen production via oxidative steam reforming of ethanol in a dense tubular membrane reactor (DMR) is sequentially simulated with ASPEN PLUS. The DMR is divided into multi-sub-reactors, and the Gibbs free energy minimization sub-model in ASPEN PLUS is employed to simulate the oxidative steam reforming of ethanol process in the sub-reactors. A FORTRAN sub-routine is integrated into Aspen Plus to simulate oxygen permeation through membranes in the sub-separators. The simulation results indicate that there is an optimal length of the tubular membrane reactor at the operating temperature and steam-to-ethanol(H2O/EtOH) ratio, under which hydrogen and carbon monoxide formation reach their maxima.The potential benefits of a hydrogen economy coming from renewable energy sources are creating a large consensus. Hydrogen production from fossil fuels has been investigated for many years. Among various liquid fuels, either for direct feeding or indirect via conversion to hydrogen rich mixtures, methanol has been thoroughly studied, since methanol is available as an abundant feedstock already largely distributed. However, the main drawback of methanol, besides its relatively high toxicity, is that its production is essentially based on reforming of non-renewable fossil fuels (mostly natural gas). Ethanol which can be produced in large quantities from renewable bio-resources appears as an attractive alternative to methanol since it is much less toxic, almost CO? Neutral and now more and more available as industrial feedstock.
Dense tubular membrane reactor Sequential simulation Oxidative steam reforming of ethanol Oxygen permeation
Jin J Li Yongdan
Tianjin Key Laboratory of Catalysis Science and Technology,School of Chemical Engineering, Tianjin University, Tianjin 300072, China
国内会议
天津
英文
11-13
2010-12-03（万方平台首次上网日期，不代表论文的发表时间）