Disposing of sewage sludge in an economical and environmentally acceptable manner is a problem for all communities that have wastewater treatment plants , Similarly , many com­ munities are having to dispose of increasing quantities of solid waste. These problems could be solved by co-disposal of sludge and solid waste in a common facility. This study , .‘nvnH .. --­ au­ &LLnAE -' .‘maL­nH .. o...

This paper aims to evaluate the use of wood biomass in a gasifier integrated with fuel cell system as low carbon technology. Experimental information is provided by literature. The syngas purified using pressure swing adsorption (PSA) order obtain H2 99.99% purity. Using 132 kg/h wood, it possible generate 10.57 that used tubular solid oxide (TSOFC). Then, TSOFC generates 197.92 kW. heat genera...

Abstract Using a newly developed experimental setup, the features and advantages of an autothermal single-casing atmospheric subbituminous coal fluidized bed air-blown gasifier, combining combustion gasification section, mixing dispersed phase (inert material, char) heat exchange between them through annular transfer device, have been revealed. To increase efficiency experimental-computational ...

Abstract Advanced transportation biofuels have been the focus of intensive development since early 2000s, and gasification in combination with synthesis technologies represents a flexible production pathway to deliver fuels for heavy-duty transport sectors that are difficult electrify. This article is related pilot-scale process concept aiming smaller-scale plants than feasible fluidized-bed ga...

A bench-scale updraft gasifier was used as a fluidized- and fixed-bed gasification unit in three modes (fluidized-bed at equivalence ratios (ER) =0.2 and 0.25, and a mode in fixed-bed). The experiments were done in five different temperatures (650, 700, 750, 800 and 850oC). To obtain the required data to develop a thermodynamic equilibrium model, the proximate and ultimate analysis w...

This process modelling studied the effect of different reactants on syngas composition and gasifier heat duty (heat energy required to carry out operation) downstream treatment CO rich maximise hydrogen yield. The was validated against experimental data obtained from a large bench-scale entrained flow gasifier. Results show that considering H 2 /CO ratio, steam-O reactant favours most compared ...

Biomass gasification processes are more commonly integrated to gas turbine based combined heat and power (CHP) generation systems. However, efficiency can be greatly enhanced by the use of more advanced power generation technology such as solid oxide fuel cells (SOFC). The key objective of this work is to develop systematic site-wide process integration strategies, based on detailed process sim...

Tar removal from biomass gasification gas is a crucial problem in applying syngas from biomass for its downstream applications. Catalytic biomass gasification has given promising results for tar cracking. A few research groups have investigated the use of olivine for tar cracking [2,3,4,7,8,9,10]. The presence of oxides of iron and magnesium in the mineral olivine give it the ability to crack h...

Gasification is a process that converts organic or fossil based carbonaceous materials into carbon monoxide, hydrogen and carbon dioxide. The process of producing energy using the gasification method has been in use for more than 180 years. During that time coal and peat were used to power these plants. Initially developed to produce town gas for lighting & cooking in 1800s, this was replaced b...

In this work a nonlinear model predictive control based on Wiener model has been developed and used to control the ALSTOM gasifier. The 0% load condition was identified as the most difficult case to control among three operating conditions. A linear model of the plant at 0% load is adopted as a base model for prediction. A nonlinear static gain represented by a feedfor-ward neural network was i...