Steam gasification of wood biomass in a fluidized biocatalytic system bed gasifier: A model development and validation using experiment and Boubaker Polynomials Expansion Scheme BPES

Abstract

Abstract:One of the most important issues in biomass biocatalytic gasification is the correct prediction of gasification products, with particular attention to the Topping Atmosphere Residues (TARs). In this work, performedwithin the European 7FP UNIfHY project, we develops and validate experimentally a model which is able of predicting the outputs,including TARs, of a steam-fluidized bed biomass gasifier. Pine wood was chosen as biomass feedstock: the products obtained in pyrolysis tests are the relevant model input. Hydrodynamics and chemical properties of the reacting system are considered: the hydrodynamic approach is based on the two phase theory of fluidization, meanwhile the chemical model is based on the kinetic equations for the heterogeneous and homogenous reactions. The derived differentials equations for the gasifier at steady state were implemented MATLAB. Solution was consecutively carried out using the Boubaker Polynomials Expansion Scheme by varying steam/biomass ratio (0.5-1) and operating temperature (750-850°C).The comparison between models and experimental results showed that the model is able of predicting gas mole fractions and production rate including most of the representative TARs compounds.

Gasification of refuse-derived fuel from municipal solid waste for energy production: a review

“…In tandem with advances in programming associated with high technology computational hardware, complicated numerical simulations and sophisticated calculations are easily realized over the last decades. Despite that many papers have been published on the modelling of biomass gasification (Aravind et al 2012 ; Cao et al 2020 ; Das et al 2020 ; Rahma et al 2021 ; Vecchione et al 2015 ) and refuse-derived fuel gasification (Barba et al 2011 ; Kardaś et al 2018 ; Násner et al 2017 ), concerted efforts are still required to contribute new findings to the existing database since there are countless types of biomass with different chemical compositions to enhance the accuracy of modelling.…”

“…The refuse-derived fuel obtained from the municipal solid waste can be converted into gaseous fuel via gasifi-cation and co-gasification. The refuse derive fuel can be co-gasified with different biomass and biochar to achieve synergistic effects, thus obtaining better quality of gaseous fuel than conventional gasification Das et al 2020;Rahma et al 2021;Vecchione et al 2015) and refuse-derived fuel gasification (Barba et al 2011;Kardaś et al 2018;Násner et al 2017), concerted efforts are still required to contribute new findings to the existing database since there are countless types of biomass with different chemical compositions to enhance the accuracy of modelling.…”

Combinatorial Determinant Formulas for Boubaker Polynomials

“…where U − 1 (x) ≔ 0; see [1]. e Boubaker polynomials play an important role in different scientific and engineering fields, such as thermodynamics, mechanics, cryptography, biology and biophysics, heat transfer, nonlinear dynamics, approximation theory, hydrology, electrical engineering, and nuclear engineering physics (see, among others, [2][3][4][5][6][7][8][9][10][11] and related references therein).…”