In recent years, hydrogen production from biomass has been optimized in fluidized bed conditions, and the steam gasification has become an area of growing interest because it produces a gaseous fuel with relatively higher H2 content which could be used in fuel cells, a new technology for the future to produce power in a much cleaner manner. The equivalence ratio is one of the most important ope...

In the entrained-flow gasifiers used in integrated gasification combined cycle (IGCC) plants, the majority of mineral matter transforms to liquid slag on the wall of the gasifier and flows out the bottom. However, a small fraction of the mineral matter is entrained (as fly ash) with the raw syngas out of the gasifier to downstream processing. This molten/sticky fly ash could cause fouling of th...

Utilization of bioenergy with carbon capture can realize carbon-negative syngas production. The quadruple fluidized bed gasifier (QFBG) integrates a chemical looping oxygen generation process and dual limestone as material. It is one promising device that convert biomass to H2-rich whilst capturing CO2 little energy penalty. However, experimental or numerical simulation QFBG rarely reported on ...

In this paper, multi-layer feed forward neural networks are used to predict the lower heating value of gas (LHV), lower heating value of gasification products including tars and entrained char (LHVp) and syngas yield during gasification of municipal solid waste (MSW) during gasification in a fluidized bed reactor. These artificial neural networks (ANNs) with different architectures are trained ...

A hydrodynamic model of a dual fluidized bed gasifier (DFBG) is developed and its predictions are compared with measurements solids flux pressure profiles from cold flow (CFM). Then, the performance DFBG theoretically analyzed in terms circulation distribution under changes riser loop seal aeration, inventory particle size, sensitivity analysis made to delimit prediction capability. Furthermore...

Using woody biomass as a resource for production of biofuel, heat and power through gasification has been studied for years. In order to reduce the cost of operating and to design the full-scale gasification plant developing a general model to be applicable for different ranges of input data with acceptable level of accuracy, is needed. In order to develop such model for the gasifier, as the ma...