نتایج جستجو برای: downdraft gasifier

تعداد نتایج: 1088  

Journal: :Journal of Energy and Environmental Sustainability 2019

Journal: :Journal of Mechanical Engineering Research & Developments 2018

Journal: :Renewable Energy 2022

A stoichiometric model is formulated for predicting the syngas yield from reduction zone of a downdraft biomass gasifier. It incorporates thermodynamic equilibrium global gasification reaction, predicts concentration minor products hydrogen sulphide and ammonia as sulphur-based nitrogen-based contaminants, respectively, implements new empirical correlation, using existing pertinent experimental...

2016
Andrew N. Rollinson Orla Williams

Samples of torrefied wood pellet produced by low-temperature microwave pyrolysis were tested through a series of experiments relevant to present and near future waste to energy conversion technologies. Operational performance was assessed using a modern small-scale downdraft gasifier. Owing to the pellet's shape and surface hardness, excellent flow characteristics were observed. The torrefied p...

2013
Thomas L. Eberhardt Hui Pan

Gasification of biomass ultimately generates at least one solid byproduct in which the inorganic constituents of the biomass are concentrated. Given the potential for utilization, or issues with disposal, facile methods are needed for determining the compositions of the fly ashes from recently-available gasifier-based bioenergy systems. Proton induced x-ray emission spectroscopy (PIXE) and indu...

2017
Aïda Ben Hassen Trabelsi Amina Ghrib Kaouther Zaafouri Athar Friaa Aymen Ouerghi Slim Naoui Habib Belayouni

Solar dried sewage sludge (SS) conversion by pyrolysis and gasification processes has been performed, separately, using two laboratory-scale reactors, a fixed-bed pyrolyzer and a downdraft gasifier, to produce mainly hydrogen-rich syngas. Prior to SS conversion, solar drying has been conducted in order to reduce moisture content (up to 10%). SS characterization reveals that these biosolids coul...

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