Assessment of syngas composition variability in a pilot-scale downdraft biomass gasifier by an extended equilibrium model

被引：18

作者：

Simone, Marco ^{[1
]}

Barontini, Federica ^{[1
]}

Nicolella, Cristiano ^{[1
]}

Tognotti, Leonardo ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Ingn Civile & Ind Largo Lucio Lazzar, I-56122 Pisa, Italy

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 140卷

关键词：

Gasification; Equilibrium model; Syngas composition; By-pass; Channeling; SUPERFICIAL VELOCITY; WASTE GASIFIER; GASIFICATION; BED; PYROLYSIS; WOOD; TAR; PERFORMANCE; CRACKING;

D O I：

10.1016/j.biortech.2013.04.052

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A new simplified approach based on equilibrium modeling is proposed in this work to describe the correlations among syngas species experimentally observed in a pilot scale downdraft biomass gasifier operated with different feedstocks (biomass pellets and vine prunings). The modeling approach is based on experimental evidence on the presence of devolatilization products in the syngas and fluctuations of syngas composition during stationary operation, accounted for by introducing two empirical parameters, a by-pass index and a permeability index. The simplified model correctly reproduces the correlations among the main syngas species (including methane and ethylene) resulting from experimental data of pilot tests with different feedstocks and under a wide range of operating conditions. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：43 / 52

页数：10

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