Design Ond Simulation Of Fluidized Bed Gasifier To Improve The Quality Of Synthesis Gas

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Biomass has emerged as one of the promising candidates for the future, in the renewable energyrnarea. Biomass has been a major source of fuel for human from the existence of mankind. Rapidrnurbanization and widespread use of fossil fuels in the industrial world has related it to the statusrnof a minor source of energy. The innovation, however, started with increasing concerns overrnreducing carbon footprints and also due to strong causative connections between non-renewablernfossil fuels and “global warming”.rnAlternative energy production through biomass gasification (a thermo-chemical process ofrnconverting biomass into the producer gas or syngas) produces combustible gases, such asrncarbon monoxide, hydrogen, and methane. These gases can be used for generation of direct heat,rnelectricity, or liquid fuels through the Fischer Tropsch process. However, a major limitation ofrnthe overall process is the purity of the generated synthesis gas. The tars and particulatesrngenerated in the gasification process constitute a major impediment to the commercial use of thisrntechnology because they may condense on valves, fittings, and therefore, hinder the smoothrnrunning of an engine. This research was aimed at developing a gas characterization and betterrnunderstanding of the effect of various parameters on the syngas composition, and the removal ofrntars and particulates in the synthesis gas generated from a bubbling fluidized bed biomassrngasifier. The study is primarily design of the different components of the gasifier andrnsupplemented by the mathematical modeling that explains various steps in terms of existingrnscientific principles.rnThe study compares the experimental results sited from different literatures with the equilibriumrnmodel results and also identifies the optimum operating parameters and design criteria for betterrnquality syngas production. Using the proposed model, the optimum compositions of carbonrnmonoxide, methane and hydrogen with the respective values of the operating temperature,rnmoisture content and equivalence ratio was obtained.

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Design Ond Simulation Of Fluidized Bed Gasifier To Improve The Quality Of Synthesis Gas

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