Syngas production and combustion characteristics in a biomass fixed bed gasifier with cyclone combustor

被引：22
作者：
Al-attab, K. A. [1 ]
Zainal, Z. A. [2 ]
机构：
[1] Sanaa Univ, Dept Mech Engn, Fac Engn, Sanaa, Yemen
[2] Univ Sains Malaysia, Sch Mech Engn, Engn Campus, Perai 14300, Penang, Malaysia
来源：
APPLIED THERMAL ENGINEERING | 2017年 / 113卷
关键词：
Syngas combustion; Biomass gasification; Cyclone combustor; Low heating value gas; Downdraft gasifier; FUEL COMBUSTION; GAS-TURBINE; RICE HUSK; PSI-FBC; GASIFICATION; EFFICIENCY; AIR; PERFORMANCE; EMISSION; BEHAVIOR;
D O I：
10.1016/j.applthermaleng.2016.11.084
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Syngas production using double throat downdraft gasifier was characterized through full gas production range of 25-250 m(3)/h. The gasifier was able to produce ignitable syngas in a wide range of air fuel (AF) equivalence ratio (lambda) of 0.3-0.4. Syngas combustion stability was characterized in a cyclone combustor. Stable combustion was achieved from lean fuel air (FA) equivalence ratio condition (phi = 0.49) to the rich combustion limit (phi = 1.25). Thermal power from the combustor was recovered by an annular tube heat exchanger to demonstrate a simple and efficient way of hot air production from biomass fuels. The hot air production configuration was characterized and the optimum operation condition was found to be at (phi = 0.68) lean combustion. This configuration can produce 36 kW(th) of hot air with overall efficiency of 46% and NOx and CO emissions below 140 ppm. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：714 / 721
页数：8
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