This study presents a reliable model using Aspen Plus process simulator capable of performing sensitivity analysis the downdraft gasification linked to hydrogen production unit. Effects key factors, including temperature and steam biomass ratio (SBR) on syngas composition, calorific value are discussed then optimal conditions for maximum extracted. The is validated by experimental other modelin...

While biomass utilization for energy conversion in the industrialized nations is being largely developed, highly efficient and environmentally friendly, many tropical countries still use biomass at low efficiencies and high emission levels. The main reasons for these gaps are both political and technological: the energy markets are different, the Gross National Product (GDP) differs widely, and...

This study presents experimental analysis of biomass air-steam gasification for the enhancement H2 production in producer gas (PG). Wood pellets which are widely available Malaysia used this investigation. A pilot scale downdraft gasifier based on new three-layers annular reactor design was implemented to produce hydrogen enriched PG. The is initially heated using hot flue from LPG combustion s...

In this work, a study was performed on the influence of ratio height to diameter reduction zone small-size downdraft gasifier as well fuel fraction sizes gas quality (the evaluated for CO content). The full side area volume (SVR) used parameter. maximum concentration observed when using small with SVR—0.7–0.72 mm−1 and adhering H/D—0.5–0.6. electric power gasoline generators (nominal equaled 4 ...

Biomass is becoming one of the most popular renewable energy sources, especially from agricultural wastes. These wastes can be gasified and utilized in various industries. This experimental study investigated producer gas generation densified fuels such as corncobs, rice husks, wood chips, oil palm fronds a 50 kWth throatless downdraft gasifier. system produced combustible gases H2, CO, CH4, wh...

Abstract Converting waste biomass resources through downdraft gasification can generate a producer gas for combined heat and power unit. The study includes feedstock analysis, process modelling using ECLIPSE simulation software, experimental analysis of materials in pilot-scale fixed-bed gasifier. Anaerobic digestate miscanthus were investigated comparing the potential poultry litter as an ener...