Simulation and Modeling Modeling of Syngas Production via Glycerol Dry Reforming Using Aspen plus
| dc.contributor.advisor | Hundessa, Dessalegn (PhD) | |
| dc.contributor.author | Ali, Hassen | |
| dc.date.accessioned | 2020-02-08T08:09:25Z | |
| dc.date.accessioned | 2023-11-10T14:54:31Z | |
| dc.date.available | 2020-02-08T08:09:25Z | |
| dc.date.available | 2023-11-10T14:54:31Z | |
| dc.date.issued | 2018-11 | |
| dc.description.abstract | The surfeit of crude glycerol as by product from biodiesel industry triggered alternative routes to valorise glycerol to value added fuels such as syngas, mixture of hydrogen and carbon monoxide. Dry reforming of glycerol uses carbon dioxide (CO2) as reactant to produce syngas. The process of glycerol dry reforming has been simulated and the effect of thermodynamic properties on yield, selectivity and conversion were studied and optimized with the aid of ASPEN PLUS V8.8 in this paper. The process of simulating glycerol dry reforming was carried out using RGIBBS and RPLUG reactor types. The sensitivity analysis and the optimization of the process were accomplished using the sensitivity and optimization sections of the model analysis tools of the ASPEN PLUS. Furthermore, sensitivity analysis was carried out to observe the effect of several parameters. The kinetic data for glycerol dry reforming and water gas shift reactions were obtained from literature. The kinetic based simulation was performed using ASPEN PLUS RPLUG model blocks with rearranged Power law and Langmuir-Hinshelwood-Hougen –Watson (LHHW). The result obtained revealed that the simulation with RGIBBS and RPLUG gave different values of components. Furthermore, it was revealed from sensitivity analysis of the process that optimization was necessary to obtain the operating variable that would involved in the process. Optimization was able to give a satisfactory value of conversion of glycerol, carbon dioxide for reforming and carbon monoxide and water for water gas shift reaction. However, much has been reported about thermodynamic analysis of steam reforming of glycerol, little is known about thermodynamic analysis of glycerol dry reforming. In this regard, in the current work, with Aspen plus simulator glycerol dry reforming thermodynamic analysis is carried out. The effect of process such as: temperature, pressure, length of the reactor, catalyst particle density, and feed ratio to the reactor performance were investigated. Based on this the yield of syngas was 92% over the range of temperature 573 -1273K whereas, over the range of pressure 1-30 bar and feed ratio 1-5; the yield of syngas were 50% and 51.24% respectively | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/20563 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Sensitivity analysis | en_US |
| dc.subject | Aspen plus | en_US |
| dc.subject | Optimization | en_US |
| dc.subject | Syngas | en_US |
| dc.subject | Dry reforming | en_US |
| dc.title | Simulation and Modeling Modeling of Syngas Production via Glycerol Dry Reforming Using Aspen plus | en_US |
| dc.type | Thesis | en_US |